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Alert Pulse · Monthly report · August 2026

Floods, fires and storms disrupt homes and roads across the United States

August flooding forced Ohio evacuations and damaged Utah homes. Oregon fires closed roads and brought shelters into service, while Maryland storms displaced residents and cut power.

AUG 11 · 2,303AUG 1AUG 31DISTINCT WARNINGS PER DAY

August 2026 · 37,931 warningsJuly 2026 · 42,499 warnings−11% per day vs July 2026

  • Flash flooding · Aug 11–17

    the Ohio Valley

    8 flash flood emergencies were declared

  • Tornadoes and severe storms · Aug 11

    the Ohio Valley

    3 tornadoes were seen on the ground

    Named in the warnings: Aurora, Covington, Florence

  • Wildfire · Aug 5–7

    Oregon

    8 orders to leave came from county agencies

  • Tornadoes and severe storms · Aug 10–11

    the Mid-Atlantic

    A county agency told people to leave

    Named in the warnings: Berkeley Springs, Great Cacapon, Little Orleans

  • Flash flooding · Aug 30–31

    Utah, Arizona and Colorado

    3 orders to leave came from county agencies

Warnings described the hazards and evacuation orders told people to leave, but neither could keep water out of homes or roads open.

Read the month

Floodwater fills Pataskala homes and forces overnight evacuations

  1. AUG 19, 7 PM UTC

    First warning

    Carroll County, Indiana

  2. AUG 19, 11 PM UTC

    Considerable threat

    Logan County, Ohio

  3. AUG 24, 7 PM UTC

    Last warning

    Jackson County, Indiana

Map of the area this edition covers. 1: Flash flooding in the Ohio Valley, Aug 19–20.1
  • Flash flooding — coloured as water. 129 counties in the Ohio Valley, Aug 19–20.

In Pataskala during the overnight flooding, Robert Thomas said his trailer and neighboring trailers were under four feet of water within 20 minutes. A tree limb had crashed through his roof. “This is the scariest thing I've ever been through,” the resident told The Columbus Dispatch.

The warnings had begun in Carroll County, Indiana, on the afternoon of August 19. By evening, the weather service had issued a flash flood warning carrying a considerable damage threat for Logan County, Ohio. Licking County lay within the broader flooding area marked 1 on the map.

In Pataskala, police and firefighters began evacuations around 1:15 a.m. on August 20, The Newark Advocate reported. Crews also evacuated riverside residents in Buckeye Lake and Newark. Elsewhere in Licking County that day, emergency crews conducted water rescues after people drove into flooded areas, according to the same newspaper.

By daylight, leaving home was not an option for some residents of Pataskala's Bright Waters subdivision: high water blocked their way out, The Columbus Dispatch reported. The newspaper also documented a washed-away portion of Beaver Run Road that day. The Newark Advocate reported that shelters opened in Heath and Hebron, with additional shelter assistance in Newark and Buckeye Lake.

As of 11:30 a.m. on August 20, Licking County interim Emergency Management Director John Wieber told The Newark Advocate he was not aware of any flood injuries. More broadly, reporting reviewed for this flooding found no death or injury reported. That finding does not diminish the disruption documented in damaged homes, rescues and impassable roads.

Flood alerts by the numbers: every published month, by state and county.

Oregon fires close Highway 26 and bring shelters into service

  1. AUG 5, 3 AM UTC

    County order

    Josephine County, Oregon

  2. AUG 5, 3 AM UTC

    County order

    Josephine County, Oregon

  3. AUG 6, 8 PM UTC

    County order

    Jackson County, Oregon

Map of the area this edition covers. 1: Wildfire in Oregon, Aug 5–7.1
  • Wildfire — coloured as heat and fire. 5 counties in Oregon, Aug 5–7.

Near Prineville on August 5, U.S. Highway 26 remained closed while crews dealt with falling rocks and fire-weakened trees, the Oregon State Fire Marshal reported. Firefighters were also preparing a forest road for a burnout intended to create a protective buffer between the Rowe Creek Complex and the city's eastern edge.

The Oregon fires marked 2 on the map were separate incidents, with county agencies issuing the emergency messages. In Josephine County on the evening of August 4, the sheriff sent an immediate evacuation order and then a separate notice telling residents to be set to evacuate. Those messages should not be read as a single fire advancing across Oregon.

By August 7, a Red Cross shelter for the Rowe Creek Complex was operating at East Side Church in Prineville, according to Central Oregon Fire Information. Its update reported 357,895 acres burned across the complex, not a total confined to Crook County.

Separately, near Ruch on August 6, the Jackson County Sheriff's Office issued readiness notices for the Woodrat Mountain Fire, including: “Jackson County Sheriff's Office: Level 2 BE SET / Nivel 2 ESTÉ LISTO - Woodrat Mtn Fire”. Medford Alert News reported that Jacksonville Elementary School opened as a shelter for people and small domestic pets. Livestock shelter was provided at the Jackson County Expo Fairgrounds in Central Point.

By the morning of August 7, firefighters had built fire line around the entire Woodrat Mountain Fire, which more accurate mapping placed at 282 acres, Medford Alert News reported. Officials cautioned that extensive work remained before the fire could be considered secure; the sheriff also issued an immediate evacuation order that day. Across the Oregon incidents covered here, the reporting and official updates reviewed found no death or injury reported.

Wildfire alerts by the numbers: every published month, by state and county.

Floods damage Springdale homes and close Zion's trails

  1. AUG 30, 5 PM UTC

    County order

    Emery County, Utah

  2. AUG 30, 6 PM UTC

    County order

    Emery County, Utah

  3. AUG 30, 6 PM UTC

    County order

    Emery County, Utah

  4. AUG 30, 6 PM UTC

    First warning

    Coconino County, Arizona

  5. AUG 30, 6 PM UTC

    Considerable threat

    Coconino County, Arizona

  6. SEP 1, 12 AM UTC

    Last warning

    Garfield County, Utah

Map of the area this edition covers. 1: Flash flooding in Utah, Arizona and Colorado, Aug 30–31.1
  • Flash flooding — coloured as water. 18 counties in Utah, Arizona and Colorado, Aug 30–31.

In Springdale on August 31, floodwater left its mark inside Angelea Glazier's children's bedroom. “There's a four-foot water line in my boys' room that just totally destroyed all of their stuff,” she told KSL. The station reported that water broke a window before entering the room.

The regional warnings had begun the previous day. On August 30, the Emery County Sheriff's Office sent this message: “POSSIBLE FLASH FLOODING IN THE GOBLIN VALLEY AND SAN RAFAEL AREA”. A flash flood warning carrying a considerable damage threat followed in Coconino County, Arizona, before noon local time. These were parts of the Southwest flooding marked 3 on the map.

Back in Springdale on August 31, about 30 people came to Glazier's home to help sort through flood-damaged belongings, she told KSL. The station documented damaged homes and mud and debris across roads. The household cleanup was the immediate work left after the water entered.

Across nearby Zion National Park that afternoon, flooding brought further restrictions. The weather service in Salt Lake City wrote: “At 358 PM MDT, National Park Service reported flash flooding from earlier thunderstorms producing heavy rain across Zion National Park.” FOX 13 News Utah reported road and trail closures, including all park slot canyons and the Narrows. Transportation officials told the station that fallen rocks closed Zion–Mount Carmel Highway between the east entrance and Canyon Junction.

In Bouse, Arizona, on August 31, trained spotters reported a swift-water rescue along Bouse Wash and Joshua Drive, according to the National Weather Service in Phoenix. The report did not specify how many people were rescued. A separate weather service report said Plamosa Road was impassable approaching Bouse. Across this regional flooding, the official reports and news coverage reviewed found no death or injury reported.

Flood alerts by the numbers: every published month, by state and county.

A tree strikes a Bethesda home as a tornado damages Dundalk

  1. AUG 9, 3 AM UTC

    County order

    Fauquier County, Virginia

  2. AUG 10, 12 PM UTC

    First warning

    Adams County, Pennsylvania

  3. AUG 11, 12 PM UTC

    Last warning

    Wayne County, Indiana

Map of the area this edition covers. 1: Tornadoes and severe storms in the Mid-Atlantic, Aug 10–11.1
  • Tornadoes and severe storms — coloured as storms. 389 counties in the Mid-Atlantic, Aug 10–11.

In Bethesda on August 10, a falling tree struck John Edwards's home during the Maryland storms, part of the broader storm area marked 4 on the map. “All of a sudden there was a big bang and the whole house shook,” the homeowner told WJLA 7News.

Earlier that day, at 8:08 a.m. local time, the weather service issued a severe thunderstorm warning for Adams County, Pennsylvania. The Baltimore/Washington office's warnings described potential damage rather than confirmed losses: “Expect considerable damage to trees and power lines. Your life is at significant risk if outdoors. In addition to some trees falling into homes, wind damage is possible to roofs, sheds, open garages, and mobile homes.”

Archived alert · August 2026Sent August 10, 2026 · NWS Baltimore MD/Washington DC
Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light…

At the West Cedar Lane home in Bethesda that afternoon, the damage was no longer a forecast. Montgomery County Fire and Rescue crews found a fallen tree and an electrical fire originating at an outlet, WJLA reported. The station said two residents were displaced and, as far as the record shows, no one was hurt.

In Baltimore and Dundalk, a weather service team surveyed the storm damage on August 11. Its subsequent report confirmed that the previous day's tornado uprooted and snapped trees near Broening Highway and snapped a power pole on Ralls Avenue. It also documented a displaced vehicle near Sollers Point Road and an awning torn from an apartment in Dundalk. Those findings establish tornado damage there, not at the Bethesda home.

During the August 10 storms, more than 25,500 Baltimore Gas & Electric customers lost power at one point, CBS Baltimore reported. Across the broader storm event covered here, the official reports and news coverage reviewed found no death or injury reported. The documented costs nevertheless included a household displaced, damaged property and interrupted electricity.

Tornado alerts by the numbers: every published month, by state and county.

How BePrepared monitors this, all year

This report exists because we already monitor the whole country. Every couple of minutes, around the clock, we read the emergency alerts going out across all fifty states and territories, and we keep them. A month of that record is what you have just read.

The national picture is the part most people never see. What matters to you is much smaller: which of these warnings would have reached your street, and what the risks around you look like on an ordinary day.

That is what BePrepared is for. Put in your ZIP code and you get the picture for where you live — the flood, fire and storm history around you, the dams and facilities nearby, and a plan for your household rather than a general one. With a free account you can keep a watchlist of the places you care about, like your home, your parents' address, and your kids' school, and set what you want to hear about.

Where it hit hardest

Counted as distinct warnings, and as the days a county spent under one. A county is the smallest area these warnings describe.

Warnings by region

  • Ohio Valley1,028
  • Southwest935
  • Southeast871
  • Midwest860
  • Mid-Atlantic735

Most days under a warning

  • San Bernardino County, CA29 days
  • Pinal County, AZ28 days
  • Randall County, TX28 days
  • Riverside County, CA28 days
  • La Paz County, AZ27 days
  • Coconino County, AZ27 days
  • Gila County, AZ27 days
  • Clark County, NV27 days

Where the warnings landed

Every county that received a warning this month, coloured and scaled by how many; the faint dots received none.3,119 of the country's counties received at least one warning; the faint dots are the counties that received none, and a quiet county is not a safe county. Each county wears its MOST frequent kind of warning and its dot scales with how many it received; the month's three biggest kinds carry color and every other kind wears gray, with the panels below giving each kind its own map. The full per-county mix is in the CSV. 633 warned areas — marine zones and territories — have no county position on this map, about 11% of county-level warning volume. They are still counted in every figure and table. Too few counties to panel: winter (13), geologic (1).
Sheridan, NE: 95 warnings · mostly severe stormsFountain, IN: 96 warnings · mostly floodingMeade, SD: 96 warnings · mostly severe stormsPerkins, SD: 96 warnings · mostly severe stormsWashington, VA: 96 warnings · mostly severe stormsBoone, WV: 96 warnings · mostly floodingColfax, NM: 97 warnings · mostly everything elseMuskingum, OH: 97 warnings · mostly floodingLincoln, WV: 97 warnings · mostly floodingEmery, UT: 98 warnings · mostly everything elseBent, CO: 99 warnings · mostly severe stormsWill, IL: 99 warnings · mostly floodingClinton, IN: 99 warnings · mostly floodingMenifee, KY: 99 warnings · mostly severe stormsColleton, SC: 99 warnings · mostly extreme heatConverse, WY: 99 warnings · mostly everything elseVermilion, IL: 100 warnings · mostly floodingJohnson, IN: 100 warnings · mostly floodingCharleston, SC: 100 warnings · mostly extreme heatCuster, SD: 100 warnings · mostly severe stormsDoddridge, WV: 100 warnings · mostly floodingBroomfield, CO: 101 warnings · mostly everything elsePutnam, IN: 101 warnings · mostly floodingBanner, NE: 101 warnings · mostly severe stormsCumberland, NC: 101 warnings · mostly severe stormsPleasants, WV: 101 warnings · mostly floodingLetcher, KY: 102 warnings · mostly floodingSioux, NE: 102 warnings · mostly severe stormsGuernsey, OH: 102 warnings · mostly floodingVinton, OH: 102 warnings · mostly floodingPennington, SD: 102 warnings · mostly severe stormsJuab, UT: 102 warnings · mostly everything elseCabell, WV: 102 warnings · mostly severe stormsBaker, FL: 104 warnings · mostly everything elseLexington, SC: 104 warnings · mostly everything elseFremont, WY: 104 warnings · mostly everything elseMobile, AL: 105 warnings · mostly everything elsePulaski, AR: 105 warnings · mostly severe stormsCamden, GA: 105 warnings · mostly everything elseMora, NM: 105 warnings · mostly everything elseRitchie, WV: 105 warnings · mostly floodingTyler, WV: 105 warnings · mostly floodingUpshur, WV: 106 warnings · mostly floodingParke, IN: 107 warnings · mostly floodingFloyd, KY: 107 warnings · mostly floodingAiken, SC: 107 warnings · mostly everything elseHancock, IN: 108 warnings · mostly floodingMorgan, KY: 108 warnings · mostly severe stormsPike, KY: 108 warnings · mostly floodingBucks, PA: 108 warnings · mostly floodingRichland, SC: 108 warnings · mostly everything elseSpartanburg, SC: 108 warnings · mostly everything elseHarrison, WV: 108 warnings · mostly floodingTippecanoe, IN: 109 warnings · mostly floodingMillard, UT: 109 warnings · mostly everything elseChelan, WA: 109 warnings · mostly fireYavapai, AZ: 110 warnings · mostly floodingHendricks, IN: 110 warnings · mostly floodingMagoffin, KY: 110 warnings · mostly severe stormsRandall, TX: 110 warnings · mostly extreme heatHenry, IN: 111 warnings · mostly floodingVermillion, IN: 111 warnings · mostly floodingGallia, OH: 111 warnings · mostly floodingOrangeburg, SC: 111 warnings · mostly everything elseRaleigh, WV: 111 warnings · mostly floodingWood, WV: 112 warnings · mostly floodingHamilton, IN: 113 warnings · mostly floodingKimball, NE: 113 warnings · mostly severe stormsClay, FL: 114 warnings · mostly everything elseRush, IN: 114 warnings · mostly floodingPerry, KY: 114 warnings · mostly severe stormsCalhoun, WV: 115 warnings · mostly severe stormsFranklin, OH: 116 warnings · mostly floodingNoble, OH: 116 warnings · mostly floodingRiverside, CA: 117 warnings · mostly extreme heatSan Diego, CA: 117 warnings · mostly floodingPutnam, FL: 117 warnings · mostly everything elseFranklin, IN: 117 warnings · mostly floodingWare, GA: 118 warnings · mostly everything elseGallatin, MT: 118 warnings · mostly everything elseBraxton, WV: 118 warnings · mostly severe stormsMarion, IN: 120 warnings · mostly floodingJefferson, CO: 121 warnings · mostly everything elseColumbia, FL: 121 warnings · mostly everything elseMeigs, OH: 121 warnings · mostly floodingNicholas, WV: 121 warnings · mostly severe stormsPlatte, WY: 121 warnings · mostly everything elseMorgan, IN: 122 warnings · mostly floodingSan Miguel, NM: 122 warnings · mostly everything elseGoshen, WY: 122 warnings · mostly severe stormsPerry, OH: 123 warnings · mostly floodingClay, WV: 123 warnings · mostly severe stormsRoane, WV: 124 warnings · mostly floodingDelaware, IN: 125 warnings · mostly floodingMason, WV: 125 warnings · mostly severe stormsPutnam, WV: 125 warnings · mostly floodingDenver, CO: 127 warnings · mostly everything elseAlachua, FL: 127 warnings · mostly everything elseCook, IL: 127 warnings · mostly floodingBreathitt, KY: 127 warnings · mostly floodingWolfe, KY: 127 warnings · mostly severe stormsCharlton, GA: 128 warnings · mostly everything elseJackson, WV: 128 warnings · mostly floodingGarfield, UT: 129 warnings · mostly floodingGraham, AZ: 130 warnings · mostly severe stormsFayette, WV: 130 warnings · mostly floodingGreenville, SC: 131 warnings · mostly everything elseWashington, UT: 131 warnings · mostly everything elseKnott, KY: 132 warnings · mostly floodingSt. Johns, FL: 133 warnings · mostly everything elseTeller, CO: 135 warnings · mostly everything elseMadison, IN: 137 warnings · mostly floodingSalt Lake, UT: 140 warnings · mostly everything elseShelby, IN: 144 warnings · mostly floodingUtah, UT: 144 warnings · mostly everything elseFairfield, OH: 145 warnings · mostly floodingTooele, UT: 145 warnings · mostly everything elseBox Elder, UT: 146 warnings · mostly everything elseNassau, FL: 147 warnings · mostly everything elseMorgan, OH: 147 warnings · mostly floodingAthens, OH: 151 warnings · mostly floodingLas Animas, CO: 152 warnings · mostly everything elseLincoln, CO: 152 warnings · mostly severe stormsClark, NV: 153 warnings · mostly floodingCoconino, AZ: 154 warnings · mostly floodingMarion, FL: 154 warnings · mostly everything elseAlbany, WY: 156 warnings · mostly everything elseLicking, OH: 157 warnings · mostly floodingKanawha, WV: 164 warnings · mostly floodingGila, AZ: 165 warnings · mostly floodingSanta Cruz, AZ: 167 warnings · mostly severe stormsKane, UT: 167 warnings · mostly floodingMohave, AZ: 168 warnings · mostly floodingAdams, CO: 168 warnings · mostly everything elseWeld, CO: 170 warnings · mostly everything elseHuerfano, CO: 175 warnings · mostly everything elseLaramie, WY: 178 warnings · mostly everything elseWashington, OH: 181 warnings · mostly floodingDouglas, CO: 185 warnings · mostly everything elseCuster, CO: 188 warnings · mostly everything elseElbert, CO: 192 warnings · mostly everything elseDuval, FL: 192 warnings · mostly everything elseLa Paz, AZ: 193 warnings · mostly severe stormsSan Bernardino, CA: 203 warnings · mostly floodingEl Paso, CO: 208 warnings · mostly everything elseFremont, CO: 221 warnings · mostly everything elseArapahoe, CO: 226 warnings · mostly everything elseCherry, NE: 246 warnings · mostly severe stormsPinal, AZ: 263 warnings · mostly everything elseCochise, AZ: 268 warnings · mostly severe stormsPueblo, CO: 271 warnings · mostly everything elseMaricopa, AZ: 326 warnings · mostly everything elsePima, AZ: 510 warnings · mostly floodingPima, AZ · 510Maricopa, AZ · 326Pueblo, CO · 271
  • Severe storms
  • Extreme heat
  • Flooding
  • Everything else

Severe storms34,018 warnings · 2,528 counties

Extreme heat25,791 warnings · 1,963 counties

Flooding21,160 warnings · 1,792 counties

Fire3,382 warnings · 398 counties

Tornadoes1,173 warnings · 309 counties

Safety & civil700 warnings · 318 counties

Hurricane & tropical185 warnings · 38 counties

View as a table
CountyStateWarningsMost frequent kind
PimaAZ510Flooding
MaricopaAZ326Everything else
PuebloCO271Everything else
CochiseAZ268Severe storms
PinalAZ263Everything else
CherryNE246Severe storms
ArapahoeCO226Everything else
FremontCO221Everything else
El PasoCO208Everything else
San BernardinoCA203Flooding
La PazAZ193Severe storms
ElbertCO192Everything else
DuvalFL192Everything else
CusterCO188Everything else
DouglasCO185Everything else
WashingtonOH181Flooding
LaramieWY178Everything else
HuerfanoCO175Everything else
WeldCO170Everything else
AdamsCO168Everything else

What it cost

No documented outcome figures were available for this period at the time of publication. This report therefore describes the warnings that went out, and makes no claim about deaths, damage or acreage.

The numbers behind this report

Every warning counted once, by type, place, day and hour, with the method below and the whole table downloadable at the end of the page.

Distinct warnings
37,931
carried by 47,345 messages (1.25× echo)
Counties reached
3,752
across 54 states and territories
Overnight
7,422
10pm–6am local · 154 of the most severe
Effective on arrival
99%
take effect the moment they are sent

What was warned about

Alert typeWarningsMessages
Severe Thunderstorm Warning11,20511,205
Special Weather Statement9,7789,783
Flood Advisory2,6722,673
Flash Flood Warning2,6592,659
Special Marine Warning1,6061,606
Heat Advisory1,5703,130
Small Craft Advisory1,3465,022
Flood Warning1,2211,900

Where

StateWarnings
AZ1,956
CO1,744
FL1,698
IN1,628
OH1,558
NC1,514
GA1,497
NE1,314

The busiest hour of the period was 5pm local time, with 3,610 warnings.

Counties reached most often

CountyStateWarnings
PimaAZ510
MaricopaAZ326
PuebloCO271
CochiseAZ268
PinalAZ263
CherryNE246
ArapahoeCO226
FremontCO221
El PasoCO208
San BernardinoCA203

A county with no alerts is not a county with no risk. It can mean a quiet period, or a hazard that this feed does not carry.

When the warnings arrived

Distinct warnings by the local hour they were sent, across the whole period.Local time in the place each alert was sent to. 7,422 arrived between 10pm and 6am, 154 of them at the highest severity.
01.0K2.0K3.0K12am: 1,011 warnings1am: 870 warnings2am: 870 warnings3am: 670 warnings4am: 611 warnings5am: 650 warnings6am: 592 warnings7am: 553 warnings8am: 640 warnings9am: 668 warnings10am: 744 warnings11am: 908 warnings12pm: 1,146 warnings1pm: 1,690 warnings2pm: 2,510 warnings3pm: 3,106 warnings4pm: 3,507 warnings5pm: 3,610 warnings6pm: 3,360 warnings7pm: 3,028 warnings8pm: 2,473 warnings9pm: 1,974 warnings10pm: 1,489 warnings11pm: 1,251 warnings3,61012am3am6am9am12pm3pm6pm9pmShaded hours are overnight, 10pm to 6am local
View as a table
Local hourWarningsOf which most severe
12am1,01119
1am87018
2am8709
3am6706
4am6117
5am6507
6am59213
7am55314
8am64026
9am66825
10am74437
11am90823
12pm1,14631
1pm1,69047
2pm2,51053
3pm3,10692
4pm3,507124
5pm3,610104
6pm3,36084
7pm3,02893
8pm2,47376
9pm1,97482
10pm1,48965
11pm1,25123

The feed repeats itself

How many messages the feed carried, how many distinct warnings they represent, and how many counties those reached.An echo rate of 1.25× — for every warning issued, 1.25 messages carried it. Reporting messages as warnings would overstate this month by 9,414.
Messages received20,465 of them updates to a warning already sent47,345Distinct warningswhat every figure in this report counts37,931Counties reacheda warning usually covers several at once3,752
View as a table
StageCount
Messages received47,345
Of which updates20,465
Of which cancels0
Distinct warnings37,931
Counties reached3,752

How severe they were

Distinct warnings by the severity the issuing agency assigned.
MinorMinor: 5,0475,047ModerateModerate: 12,23212,232SevereSevere: 19,13219,132ExtremeExtreme: 1,0781,078Not classifiedNot classified: 442442
  • Minor
  • Moderate
  • Severe
  • Extreme
  • Not classified
View as a table
SeverityWarnings
Minor5,047
Moderate12,232
Severe19,132
Extreme1,078
Not classified442

What people were told to do

The share of warnings carrying each instruction to the public.These are response counts. They record the instruction an alert carried, not the hazard behind it.
Follow instructions: 12,215 (32.2%)Follow instructions 32%Shelter: 11,832 (31.2%)Shelter 31%Avoid: 10,163 (26.8%)Avoid 27%Everything else: 3,721 (9.8%)
  • Follow instructions
  • Shelter
  • Avoid
  • Everything else

Where those instructions came from

  • Shelter (11,832) — 2,690 corroborated as flood, 1,009 corroborated as tornado, 34 corroborated as wildfire, 10 corroborated as hurricane, 8,089 with no hazard stated in the alert text
  • Evacuate (107) — 8 corroborated as flood, 76 corroborated as wildfire, 23 with no hazard stated in the alert text
View as a table
ResponseWarningsShare
Follow instructions12,21532.2%
Shelter11,83231.2%
Avoid10,16326.8%
Monitor2,2515.9%
Prepare1,0452.8%
Unstated3030.8%
Evacuate1070.3%
All clear150.0%

What this report cannot tell you

  • This report records the warnings that were sent: when, where, and what people were told to do. It cannot say whether anyone received them, whether they acted, or whether they had anywhere to go.
  • Deaths, injuries, damage and acreage come from the news organizations and agencies named beside each figure. Our own records measure warnings, never outcomes, and are never the source for a toll.
  • A county is the smallest area these alerts describe, so "a county was warned" does not mean every street in it was at risk.
  • Where no figure has been reported, this report says so rather than estimating.

How these numbers were counted

Counted AUG 1, 2026 – SEP 1, 2026 · Frozen at publish

The alert figures in this report — how many warnings, where, when, and how severe — come from the alerts this archive received from FEMA IPAWS and the National Weather Service between August 1, 2026 and September 1, 2026, counted once and frozen when the report was published.

Deaths, damage and acreage are not ours and are never drawn from this archive. Each is attributed to the organization that reported it, above.

What was counted

  • cap_status = 'Actual' (tests, exercises and demos excluded)
  • SAME test codes RWT/RMT/DMO/NPT/NAT excluded, and any event type containing "test"
  • An event is the first message of a CAP identifier chain; updates and cancels are counted separately
  • Alert time is cap_sent, falling back to ingest time when the feed omits it
  • Counties come from the alert geocodes (SAME/FIPS); statewide codes are not counted as counties

What these numbers cannot tell you

  • Lead time is the gap between when an alert was sent and when it takes effect. This archive collapses CAP onset into effective, so for many products those are the same instant by design — it is not a measure of forecast warning time.
  • 142 alerts expire exactly 24 hours after they were sent because the feed omitted an expiry and the ingest substitutes a default. They are excluded from the duration distribution rather than charted as real forecasts.
  • Evacuation and shelter figures are RESPONSE counts. They record what people were told to do, not what caused it; where the alert text does not name a hazard, the row is reported as unstated.
  • Hour-of-day figures use each alert’s own local time, resolved from its state. Alerts spanning several states resolve to the first state in their geocodes.
  • National Weather Service alerts began arriving in volume on 2026-06-12. Earlier months hold only the handful that reached this archive by other routes, so they undercount weather alerts badly and cannot be compared with later months.
  • Population figures are not available for these counties, so alert counts are reported per county and never per resident.

This archive

Collection began 2026-03-27. National Weather Service alerts began arriving in volume on 2026-06-12 (a small number reached the archive by other routes from 2026-03-31). Months from 2026-07-01 onward can be compared with each other; earlier ones cannot.

Corrections and updates

  • v2September 19, 2026
    improved prompts
  • v2September 19, 2026
    improved prompts
  • v4September 22, 2026
    new version of report builder

For newsrooms and researchers

Use these figures

Figures v4 · Frozen

Journalists, emergency managers and researchers are welcome to reuse anything in this report, including the underlying counts, with attribution. Version 4 of these figures is frozen: if a correction changes them, it appears above as a dated note rather than silently replacing what you cited.

Cite this report
BePreparedSolutions.co. "Floods, fires and storms disrupt homes and roads across the United States." Alert Pulse, September 22, 2026. https://bepreparedsolutions.co/reports/alert-pulse/2026-08
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