Alert archive / Colorado / Flash Flood Warnings in 2011
Flash Flood Warning 1, NWS Pueblo, CO
NWS Pueblo, CO issued this flash flood warning at Jul 7, 2011, 2:29 PM MDT for Las Animas County, Colorado. It was in force for 89 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 7, 2011, 2:29 PM MDT (20:29 UTC)
- Expired
- Jul 7, 2011, 3:58 PM MDT
- In force
- 89 min
- Issued by
- NWS Pueblo, CO
- Area
- Storm-based polygon
- Flood severity
- None
County Las Animas County, CO
The radar
The Pueblo radar (KPUX), 157 km from the middle of the area, began a volume at 20:32 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Albuquerq/Krtlnd, NM (KABQ), launched 12:00Z, 8.5 hours before the alert went out and 300 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2535 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
274 WGUS55 KPUB 072029 FFWPUB COC071-072330- /O.NEW.KPUB.FF.W.0001.110707T2029Z-110707T2330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PUEBLO CO 229 PM MDT THU JUL 7 2011 THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTH CENTRAL LAS ANIMAS COUNTY IN SOUTHEAST COLORADO... * UNTIL 530 PM MDT * AT 226 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE TRACK FIRE COMPLEX OF EXTREME SOUTH CENTRAL LAS ANIMAS COUNTY. DOPPLER RADAR ESTIMATES THAT BETWEEN 1 AND 2 INCHES HAS FALLEN ACROSS THE WARNED AREA. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES... SAN FRANCISCO CREEK...SAN MIGUEL CREEK...CLEAR CREEK...JOE CREEK... BILL CREEK...GRAY CREEK AND SAN ISIDRO CREEK. JUST A SMALL AMOUNT OF RAINFALL ON A BURN SCAR CAN LEAD TO FLASH FLOODING. WATER THAT IS NORMALLY ABSORBED BY VEGETATION...RUNS OFF ALMOST INSTANTLY. THIS CAUSES CREEKS AND DRAINAGE AREAS TO FLOOD AT A MUCH FASTER RATE THAN NORMAL. ADDITIONALLY...THE SOILS IN A BURN SCAR BECOME UNSTABLE WHEN IT RAINS...RESULTING IN MUD FLOWS AND FALLING ROCK. ROADWAYS CAN BE WASHED OUT BY THE FORCE OF THE RUSHING WATER. LAT...LON 3709 10431 3700 10431 3700 10446 3709 10445 $$
2 follow-up statements
138 WGUS75 KPUB 072122 FFSPUB FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE PUEBLO CO 322 PM MDT THU JUL 7 2011 COC071-072330- /O.CON.KPUB.FF.W.0001.000000T0000Z-110707T2330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LAS ANIMAS CO- 322 PM MDT THU JUL 7 2011 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL LAS ANIMAS COUNTY UNTIL 530 PM MDT... AT 320 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL HAVE MOVED SOUTH OF THE AREA WITH ONLY LIGHT SHOWERS INDICATED ACROSS THE TRACK FIRE BURN SCAR OF EXTREME SOUTH CENTRAL HUERFANO COUNTY. HOWEVER...DOPPLER RADAR ESTIMATES THAT BETWEEN 1 AND 3 INCHES OF RAIN HAS FALLEN ACROSS THE AREA OVER THE PAST HOUR. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES... SAN FRANCISCO CREEK...SAN MIGUEL CREEK...CLEAR CREEK...JOE CREEK AND SAN ISIDRO CREEK. JUST A SMALL AMOUNT OF RAINFALL ON A BURN SCAR CAN LEAD TO FLASH FLOODING. WATER THAT IS NORMALLY ABSORBED BY VEGETATION...RUNS OFF ALMOST INSTANTLY. THIS CAUSES CREEKS AND DRAINAGE AREAS TO FLOOD AT A MUCH FASTER RATE THAN NORMAL. ADDITIONALLY...THE SOILS IN A BURN SCAR BECOME UNSTABLE WHEN IT RAINS...RESULTING IN MUD FLOWS AND FALLING ROCK. ROADWAYS CAN BE WASHED OUT BY THE FORCE OF THE RUSHING WATER. LAT...LON 3709 10431 3700 10431 3700 10446 3709 10445 $$
359 WGUS75 KPUB 072158 FFSPUB FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE PUEBLO CO 358 PM MDT THU JUL 7 2011 COC071-072213- /O.CAN.KPUB.FF.W.0001.000000T0000Z-110707T2330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LAS ANIMAS CO- 358 PM MDT THU JUL 7 2011 ...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTH CENTRAL LAS ANIMAS COUNTY IS CANCELLED... EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED... PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY. LAT...LON 3709 10431 3700 10431 3700 10446 3709 10445 $$
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 8:49 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Prowers | 56 min |
| Jul 6, 9:43 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa, Prowers | 37 min |
| Jul 7, 2:16 PM MDT | Severe Thunderstorm Warning | PUB | El Paso, Teller | 34 min |
| Jul 7, 2:17 PM MDT | Severe Thunderstorm Warning | PUB | Huerfano, Las Animas | 25 min |
| Jul 7, 2:49 PM MDT | Severe Thunderstorm Warning | PUB | Huerfano | 56 min |
| Jul 7, 5:13 PM MDT | Severe Thunderstorm Warning | PUB | Pueblo | 62 min |
| Jul 7, 5:23 PM MDT | Areal Flood Advisory | PUB | Las Animas, Otero | 102 min |
Nearby
Flash Flood Warnings in Colorado, 2011Every flash flood warning in 2011
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; radar from the NEXRAD Level II archive.