Alert archive / Texas / Flash Flood Warnings in 2011
Flash Flood Warning 4, NWS Midland/Odessa, TX
NWS Midland/Odessa, TX issued this flash flood warning at Aug 13, 2011, 4:49 PM CDT for Brewster County, Pecos County, Terrell County, Texas. 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 13, 2011, 4:49 PM CDT (21:49 UTC)
- Expired
- Aug 13, 2011, 7:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Midland/Odessa, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Brewster County, TX, Pecos County, TX, Terrell County, TX
The radar
The Midland/Odessa radar (KMAF), 236 km from the middle of the area, began a volume at 21:51 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
Del Rio, TX (KDRT), launched 12:00Z, 9.8 hours before the alert went out and 204 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
- 2528 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 695 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
912
WGUS54 KMAF 132149
FFWMAF
TXC043-371-443-140045-
/O.NEW.KMAF.FF.W.0004.110813T2149Z-110814T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
449 PM CDT SAT AUG 13 2011
THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EXTREME SOUTH CENTRAL PECOS COUNTY IN SOUTHWEST TEXAS...
WEST CENTRAL TERRELL COUNTY IN SOUTHWEST TEXAS...
EAST CENTRAL BREWSTER COUNTY IN SOUTHWEST TEXAS...
* UNTIL 745 PM CDT
* AT 442 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
FLASH FLOODING FROM AN AREA OF THUNDERSTORMS OVER EAST CENTRAL
BREWSTER COUNTY. VERY HEAVY RAINFALL IS OCCURRING WITH THESE
STORMS. RAINFALL RATES ARE ESTIMATED TO BE NEAR 2 INCHES PER HOUR.
MOTORISTS TRAVELING ALONG US 90 BETWEEN MARATHON AND SANDERSON
SHOULD USE EXTREME CAUTION. FIND ANOTHER ROUTE IF POSSIBLE.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...
LONGFELLOW...
US 90...
US 385...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL IS EXPECTED WHICH COULD INCREASE THE POTENTIAL
FOR FLOODING IN THE WARNED AREA.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 2977 10337 3001 10331 3016 10316 3029 10307
3030 10238 2981 10246 2974 10259 2975 10260
2973 10264 2973 10267 2971 10269
$$1 follow-up statement
312
WGUS74 KMAF 132322
FFSMAF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
622 PM CDT SAT AUG 13 2011
TXC043-371-443-140045-
/O.CON.KMAF.FF.W.0004.000000T0000Z-110814T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PECOS-TERRELL-BREWSTER-
622 PM CDT SAT AUG 13 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR EAST
CENTRAL BREWSTER...WEST CENTRAL TERRELL AND EXTREME SOUTH CENTRAL
PECOS COUNTIES...
AT 615 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT FLASH FLOODING OVER EAST CENTRAL BREWSTER COUNTY ALONG AND
SOUTH OF US 90 BETWEEN SANDERSON AND MARATHON. SOME LOCATIONS JUST
SOUTH OF US 90 MAY HAVE RECEIVED OVER 2 INCHES OF RAINFALL. ALTHOUGH
THE THUNDERSTORMS OVER THE REGION HAVE WEAKENED...THE FLASH FLOOD
THREAT WILL CONTINUE THROUGH THE EARLY EVENING HOURS DUE TO THE
AMOUNT OF RAIN THAT FELL OVER A SHORT PERIOD OF TIME.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LONGFELLOW.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOST FLOODING DEATHS ARE PREVENTABLE. TURN AROUND... DONT
DROWN.
&&
LAT...LON 2977 10337 3001 10331 3016 10316 3029 10307
3030 10238 2981 10246 2974 10259 2975 10260
2973 10264 2973 10267 2971 10269
$$The office that day
Everything else NWS Midland/Odessa, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 2:25 AM CDT | Areal Flood Advisory | MAF | Mitchell, Scurry | 3 hr |
| Aug 13, 6:55 AM CDT | Areal Flood Advisory | MAF | Mitchell, Scurry | 3 hr |
| Aug 13, 3:22 PM CDT | Severe Thunderstorm Warning | MAF | Brewster, Pecos | 53 min |
| Aug 13, 4:22 PM CDT | Areal Flood Advisory | MAF | Jeff Davis | 113 min |
| Aug 13, 4:23 PM CDT | Areal Flood Advisory | MAF | Brewster, Pecos, Terrell | 3 hr |
Nearby
Flash Flood Warnings in Texas, 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.