Alert archive / Texas / Flash Flood Warnings in 2012
Flash Flood Warning 3, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood warning at May 10, 2012, 9:47 AM CDT for Crockett County, Texas. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 10, 2012, 9:47 AM CDT (14:47 UTC)
- Expired
- May 10, 2012, 12:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Crockett County, TX
The radar
The San Angelo radar (KSJT), 99 km from the middle of the area, began a volume at 14:48 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 12:00 PM CDT | FLASH FLOOD | 20 Wsw Barnhart, TX | CROCKETT COUNTY DISPATCHED REPORTED WATER COVERING F M HIGHWAY 137 IN CROCKETT COUNTY NORTH OF OZONA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 2.8 hours before the alert went out and 159 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
- 121 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 579 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
042 WGUS54 KSJT 101447 FFWSJT TXC105-101730- /O.NEW.KSJT.FF.W.0003.120510T1447Z-120510T1730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 947 AM CDT THU MAY 10 2012 THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL CROCKETT COUNTY IN WEST CENTRAL TEXAS... * UNTIL 1230 PM CDT * AT 941 AM CDT...THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUE TO MOVE ACROSS CROCKETT COUNTY. THE HEAVY RAINFALL WILL CAUSE NORMALLY DRY DRAWS AND CREEKS TO RISE QUICKLY AND FLOOD ROADS. * IMPACTS FROM THIS INTENSE RAINFALL WILL INCLUDE: FLOODING OF LOW LYING ROADS AND LOW WATER CROSSINGS. RAPID RISE OF AREA CREEKS...STREAMS...AND ARROYOS. WATER WILL BE HIGH AND FAST ENOUGH TO STALL VEHICLES OR WASH THEM COMPLETELY OFF THE ROAD. BE ESPECIALLY CAUTIOUS ALONG HIGHWAY 163...U.S. HIGHWAY 190...AND ALL COUNTY ROADS. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...OZONA. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY. && LAT...LON 3108 10103 3030 10103 3031 10164 3107 10156 $$ JMJ
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 7:30 PM CDT | Special Weather Statement | SJT | Upton | 60 min |
| May 10, 3:52 AM CDT | Flash Flood Watch | SJT | Brown, Callahan, Coke, Coleman, Concho, Crockett and 13 more | 23 hr |
| May 10, 6:35 AM CDT | Areal Flood Advisory | SJT | Crockett | 115 min |
| May 10, 6:54 AM CDT | Special Weather Statement | SJT | Crockett | 51 min |
| May 10, 7:31 AM CDT | Special Weather Statement | SJT | Sutton | 44 min |
| May 10, 9:01 AM CDT | Special Weather Statement | SJT | Menard | 59 min |
| May 10, 9:36 AM CDT | Special Weather Statement | SJT | Menard | 24 min |
| May 10, 10:24 AM CDT | Flash Flood Warning | SJT | Irion | 3 hr |
| May 10, 10:41 AM CDT | Special Weather Statement | SJT | Irion | 34 min |
| May 10, 10:45 AM CDT | Severe Thunderstorm Warning | SJT | Irion | 30 min |
| May 10, 11:12 AM CDT | Special Weather Statement | SJT | Kimble | 33 min |
| May 10, 11:15 AM CDT | Special Weather Statement | SJT | Tom Green | 30 min |
| May 10, 11:24 AM CDT | Areal Flood Advisory | SJT | Schleicher, Sutton | 3 hr |
| May 10, 11:58 AM CDT | Flash Flood Warning | SJT | Tom Green | 3 hr |
| May 10, 12:30 PM CDT | Special Weather Statement | SJT | Tom Green | 30 min |
| May 10, 12:34 PM CDT | Severe Thunderstorm Warning | SJT | Tom Green | 26 min |
| May 10, 12:58 PM CDT | Severe Thunderstorm Warning | SJT | Tom Green | 32 min |
| May 10, 1:10 PM CDT | Special Weather Statement | SJT | Menard | 50 min |
| May 10, 1:47 PM CDT | Areal Flood Advisory | SJT | Concho, Menard | 118 min |
| May 10, 2:00 PM CDT | Special Weather Statement | SJT | Runnels | 60 min |
| May 10, 2:16 PM CDT | Areal Flood Advisory | SJT | Coke, Runnels | 119 min |
| May 10, 2:19 PM CDT | Special Weather Statement | SJT | McCulloch | 56 min |
| May 10, 2:55 PM CDT | Areal Flood Advisory | SJT | Tom Green | 3 hr |
| May 10, 3:28 PM CDT | Areal Flood Advisory | SJT | Jones, Taylor | 107 min |
| May 10, 4:00 PM CDT | Areal Flood Advisory | SJT | Irion | 105 min |
Nearby
Flash Flood Warnings in Texas, 2012Every flash flood warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.