Alert archive / Colorado / Flash Flood Warnings in 2026
Flash Flood Warning 87, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood warning at Aug 31, 2026, 7:45 PM MDT for Kiowa County, Colorado. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 31, 2026, 7:45 PM MDT (01:45 UTC)
- Expired
- Aug 31, 2026, 10:27 PM MDT
- In force
- 3 hr
- Issued by
- NWS Pueblo, CO
- Area
- Storm-based polygon
- Flood severity
- None
County Kiowa County, CO
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 1.8 hours before the alert went out and 225 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 190 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 3208 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
412
WGUS55 KPUB 010145
FFWPUB
COC061-010445-
/O.NEW.KPUB.FF.W.0087.260901T0145Z-260901T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pueblo CO
745 PM MDT Mon Aug 31 2026
The National Weather Service in Pueblo has issued a
* Flash Flood Warning for...
Southeastern Kiowa County in southeastern Colorado...
* Until 1045 PM MDT.
* At 745 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain in Big Sandy and Buffalo Creek Drainages south of
Brandon and Sheridan Lake. Between 1.5 and 3 inches of rain have
fallen. The expected rainfall rate is 1 to 3 inches in 1 hour.
Additional rainfall amounts up to 1 inch are possible in portions
of the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, highways,
rural roads, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Sheridan Lake, Brandon and Chivington.
This includes the following streams and drainages...
Big Sandy Creek and Rush Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3849 10215 3837 10215 3832 10224 3831 10247
3834 10255 3843 10255 3850 10249 3851 10229
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-3 INCHES IN 1 HOUR
$$
KT2 follow-up statements
796
WGUS75 KPUB 010216
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
816 PM MDT Mon Aug 31 2026
COC061-010445-
/O.CON.KPUB.FF.W.0087.000000T0000Z-260901T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kiowa CO-
816 PM MDT Mon Aug 31 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 PM MDT THIS
EVENING FOR SOUTHEASTERN KIOWA COUNTY...
At 816 PM MDT, Doppler radar indicated the thunderstorms that
produced heavy rain in Big Sandy and Buffalo Creek Drainages south of
Brandon and Sheridan Lake have moved east of the area. Between 1.5
and 3 inches of rain have fallen. Additional rainfall amounts are
expected to remain under 0.25 inches from additional showers over the
area. However, flash flooding will continue until the water has a
chance to recede.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, highways, rural
roads, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Sheridan Lake, Brandon and Chivington.
This includes the following streams and drainages...
Big Sandy Creek and Rush Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3849 10215 3837 10215 3832 10224 3831 10247
3834 10255 3843 10255 3850 10249 3851 10229
FLASH FLOOD...RADAR INDICATED
$$407
WGUS75 KPUB 010427
FFSPUB
Flash Flood Statement
National Weather Service Pueblo CO
1027 PM MDT Mon Aug 31 2026
COC061-010437-
/O.CAN.KPUB.FF.W.0087.000000T0000Z-260901T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kiowa CO-
1027 PM MDT Mon Aug 31 2026
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN KIOWA COUNTY...
The heavy rain has ended. Flood waters have receded. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
&&
LAT...LON 3849 10215 3837 10215 3832 10224 3831 10247
3834 10255 3843 10255 3850 10249 3851 10229
$$What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pueblo, CO wrote its last area forecast discussion before this flash flood warning went out at Aug 31, 5:41 PM MDT, 2 hours 4 minutes earlier. Its key messages:
- Shortwave will move across the region bring showers and thunderstorms to the area late this afternoon and evening; some of the activity will move across during the late evening/early AM hours.
- Drier weather Tuesday through Thursday
- Better monsoon flow pattern returns late this week into the weekend.
Area forecast discussion, Aug 31, 5:41 PM MDT, 2 hours 4 minutes before
Area Forecast Discussion National Weather Service Pueblo CO 541 PM MDT Mon Aug 31 2026 .KEY MESSAGES... - Shortwave will move across the region bring showers and thunderstorms to the area late this afternoon and evening; some of the activity will move across during the late evening/early AM hours. - Drier weather Tuesday through Thursday - Better monsoon flow pattern returns late this week into the weekend. && .SHORT TERM /THROUGH TONIGHT/... Issued at 1253 PM MDT Mon Aug 31 2026 Overall, most of the region, especially the higher terrain, should see precip between now and late night tonight. The least amount of precip will be over the far southeast part of the plains. flash flooding will be possible along the Divide. The I-25 corridor may see 2 rounds of precip today. The first will be the normal showers and storms coming through during the normal late afternoon and early evening time period. Best activity is expected to from along the Raton Mesa later this afternoon and move north-northeat. Activity farther north during this time period will be more isolated. Later this evening, a more pronounced short wave will move across and this will likely bring a better chance of showers and some tsra to the I-25 corridor region. Looking at the weather for the mountains, we will see a better chance of showers and storms later this afternoon, this evening and into the early morning hours. The better chance for heavier rain will be over the central mountains, and areas such as the Chalk Bluffs and Willow burn scar will have to be watched carefully for flash flooding through this period. && .LONG TERM /TUESDAY THROUGH MONDAY/... Issued at 1253 PM MDT Mon Aug 31 2026 Although the monsoon plume will stay over the region this week, the quality of the moisture will be less. Likewise, showers and storms will be possible over the region, but there will be less activity Tuesday through the Thursday time period. Overall, expect scattered storms in the mtns, and isolated activity over the plains. From Friday into the weekend, Deterministic guidance shows moisture increasing through the column during this period. and showers and storms should become more prevalent over the region during this time period. This same overall pattern is indicated by the statistical guidance. Warmest temps should occur late in the week. 100s may come back to parts of the far east plains Friday and Saturday. A bit of a cooling pattern possible by early next week, but there is disagreement in the guidance about this outcome. Checking the fire weather parameters during this forecast period, we may see some spotty conditions on Thursday across a small part of the region. && .AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/... Issued at 535 PM MDT Mon Aug 31 2026 VFR TAFs are expected to persist outside some temporary reduced vis within evening convection. Monsoon moisture will remain across the area through the evening so kept chances for storms across the terminals into late this evening. Diurnal wind patterns should become commonplace outside of storm outflows this evening. && .PUB WATCHES/WARNINGS/ADVISORIES... Flash Flood Watch until midnight MDT tonight for COZ059>061. && SHORT TERM...HODANISH LONG TERM...HODANISH AVIATION...GRIESEMER
Hazardous weather outlook, Aug 31, 11:35 AM MDT, 8 hours 10 minutes before
Hazardous Weather Outlook National Weather Service Pueblo CO 1135 AM MDT Mon Aug 31 2026 COZ058>089-093>099-011745- Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Eastern Sawatch Mountains Above 11000 Feet- Western Chaffee County Between 9000 and 11000 Feet- Central Chaffee County Below 9000 Feet- Western Mosquito Range/East Chaffee County Above 9000 Feet- Saguache County West of Continental Divide Below 10000 Feet- Saguache County East of Continental Divide Below 10000 Feet- La Garita Mountains Above 10000 Feet- Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Feet-Eastern San Juan Mountains Above 10000 Feet- Del Norte Vicinity/Northern San Luis Valley Below 8500 Feet- Alamosa Vicinity/Central San Luis Valley Below 8500 Feet- Southern San Luis Valley- Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet- Northern Sangre de Cristo Mountains Above 11000 Feet- Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet- Southern Sangre de Cristo Mountains Above 11000 Feet- Northwestern Fremont County Above 8500 Feet- Western/Central Fremont County Below 8500 Feet- Wet Mountain Valley Below 8500 Feet- Wet Mountains between 6300 and 10000 Feet- Wet Mountains Above 10000 Feet- Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between 7500 And 11000 Feet-Pikes Peak Above 11000 Feet- Canon City Vicinity/Eastern Fremont County- Northern El Paso County/Monument Ridge/Rampart Range Below 7500 Feet- Colorado Springs Vicinity/Southern El Paso County/Rampart Range Below 7400 Feet-Pueblo Vicinity/Pueblo County Below 6300 Feet- Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet- Trinidad Vicinity/Western Las Animas County Below 7500 Feet- Crowley County-La Junta Vicinity/Otero County- Eastern Las Animas County-Western Kiowa County- Eastern Kiowa County-Las Animas Vicinity/Bent County- Lamar Vicinity/Prowers County-Springfield Vicinity/Baca County- 1135 AM MDT Mon Aug 31 2026 This hazardous weather outlook is for portions of central...east central...south central and southeast Colorado. .DAY ONE...This Afternoon and Tonight Showers and thunderstorms will develop over the mountains this afternoon and spread into the adjacent valleys and plains through the late afternoon and evening hours. Some of the activity over the region will last into the overnight hours. The main risks with thunderstorms over the mountains will be heavy rainfall capable of producing flash flooding, especially over the central mountain region. Elsewhere over the plains, a few strong storms will be possible across the lower elevations east of a line from Rocky Ford to Trinidad. Small hail under 1 inch in diameter, wind gusts up to 50 mph, and locally heavy rainfall will be possible with the stronger storms. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Isolated to scattered thunderstorms will be possible on Tuesday, especially across the mountains. Brief heavy rainfall, lightning and gusty outflow winds up to 40 mph will be possible. After a dry period for Wednesday and Thursday, scattered thunderstorms will return to the forecast for Friday into next weekend, with locally heavy rainfall and gusty outflow winds possible with the stronger storms. .SPOTTER INFORMATION STATEMENT... Weather spotters will not be needed today or tonight. Hodanish
In the hours before
Local storm report, Aug 31, 6:45 PM MDT, 1 hour before
Preliminary Local Storm Report
National Weather Service Pueblo CO
645 PM MDT Mon Aug 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0630 PM Tstm Wnd Gst 7 SE Lamar 38.02N 102.53W
08/31/2026 M77 MPH Prowers CO Public
PWS.
&&
ngLocal storm report, Aug 31, 6:46 PM MDT, 59 minutes before
Preliminary Local Storm Report
National Weather Service Pueblo CO
646 PM MDT Mon Aug 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0640 PM Tstm Wnd Gst 6 SE Mcclave 38.07N 102.76W
08/31/2026 M60 MPH Bent CO Public
PWS.
&&
ngLocal storm report, Aug 31, 6:47 PM MDT, 58 minutes before
Preliminary Local Storm Report
National Weather Service Pueblo CO
647 PM MDT Mon Aug 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0644 PM Tstm Wnd Gst 5 S Sheridan Lake 38.40N 102.29W
08/31/2026 M63 MPH Kiowa CO Public
PWS.
&&
ngSpecial weather statement, Aug 31, 6:47 PM MDT, 58 minutes before
Special Weather Statement
National Weather Service Pueblo CO
647 PM MDT Mon Aug 31 2026
COZ097>099-010115-
Springfield Vicinity/Baca County CO-Lamar Vicinity/Prowers County CO-
Las Animas Vicinity/Bent County CO-
647 PM MDT Mon Aug 31 2026
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN PROWERS...
NORTHWESTERN BACA AND SOUTHEASTERN BENT COUNTIES THROUGH 715 PM
MDT...
At 647 PM MDT, Doppler radar was tracking a strong thunderstorm 18
miles north of Pritchett, or 24 miles northwest of Springfield,
moving northeast at 25 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
This storm will remain over mainly rural areas of southwestern
Prowers, northwestern Baca and southeastern Bent Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3751 10290 3761 10307 3786 10297 3771 10266
TIME...MOT...LOC 0047Z 208DEG 21KT 3763 10295
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
kamSpecial weather statement, Aug 31, 6:52 PM MDT, 53 minutes before
Special Weather Statement
National Weather Service Pueblo CO
652 PM MDT Mon Aug 31 2026
COZ069-070-072-073-078-010115-
Alamosa Vicinity/Central San Luis Valley Below 8500 Ft CO-
Wet Mountain Valley Below 8500 Ft CO-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft CO-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Ft CO-
Northern Sangre de Cristo Mountains above 11000 Ft CO-
652 PM MDT Mon Aug 31 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN ALAMOSA...
NORTHWESTERN HUERFANO...SOUTH CENTRAL CUSTER AND SOUTHEASTERN
SAGUACHE COUNTIES THROUGH 715 PM MDT...
At 652 PM MDT, Doppler radar was tracking a strong thunderstorm over
Great Sand Dunes, or 27 miles northeast of Alamosa, moving north at
30 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Great Sand Dunes and Crestone Peak.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3775 10557 3777 10569 3803 10568 3798 10537
TIME...MOT...LOC 0052Z 195DEG 25KT 3781 10562
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPHLocal storm report, Aug 31, 7:04 PM MDT, 41 minutes before
Preliminary Local Storm Report
National Weather Service Pueblo CO
704 PM MDT Mon Aug 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0615 PM Rain 6 SW Higbee 37.71N 103.52W
08/31/2026 M2.20 Inch Otero CO Public
PWS.
&&
ngThe office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 6:11 PM MDT | Special Weather Statement | PUB | Alamosa | 34 min |
| Aug 31, 6:26 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Kiowa, Prowers | 49 min |
| Aug 31, 6:41 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Kiowa, Prowers | 49 min |
| Aug 31, 6:47 PM MDT | Special Weather Statement | PUB | Bent | 28 min |
| Aug 31, 6:50 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 25 min |
| Aug 31, 6:52 PM MDT | Special Weather Statement | PUB | Custer | 23 min |
| Aug 31, 7:13 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Kiowa, Prowers | 62 min |
| Aug 31, 7:28 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 32 min |
| Aug 31, 7:56 PM MDT | Special Weather Statement | PUB | Prowers | 34 min |
| Sep 1, 3:59 PM MDT | Special Weather Statement | PUB | Prowers | 46 min |
| Sep 1, 4:06 PM MDT | Special Weather Statement | PUB | Baca | 39 min |
| Sep 1, 4:09 PM MDT | Special Weather Statement | PUB | 51 min | |
| Sep 1, 5:00 PM MDT | Special Weather Statement | PUB | Baca | 30 min |
| Sep 1, 5:23 PM MDT | Special Weather Statement | PUB | Saguache | 52 min |
Nearby
Flash Flood Warnings in Colorado, 2026Every flash flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.