Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 80, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood warning at Oct 24, 2002, 4:43 AM CDT for Mason County, Texas. It was in force for 5 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
- Oct 24, 2002, 4:43 AM CDT (09:43 UTC)
- Expired
- Oct 24, 2002, 9:45 AM CDT
- In force
- 5 hr
- Issued by
- NWS San Angelo, TX
- Area
- Counties, with a storm outline in the text
County Mason County, TX
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
Del Rio, TX (KDRT), launched 00:00Z, 9.7 hours before the alert went out and 208 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
- 601 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 769 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KSJT 240943 FFWSJT TXC319-241445- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 441 AM CDT THU OCT 24 2002 THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A * FLASH FLOOD WARNING FOR... MASON COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 945 AM CDT * AT 439 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN 9 MILES SOUTHWEST OF MASON...MOVING NORTHEAST AT 25 MPH. * THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE NEAR... MASON AT 500 AM CDT * RAINFALL UP TO AN INCH AND A HALF IS EXPECTED THROUGH 945 AM CDT DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. DO NOT ATTEMPT TO DRIVE AROUND BARRICADES. MOST FLASH FLOOD DEATHS OCCUR IN VEHICLES...AND CAN OCCUR AT NIGHT WHEN IT IS HARD TO SEE. LAT...LON 3060 9947 3049 9931 3087 9898 3090 9932
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 San Angelo, TX wrote its last area forecast discussion before this flash flood warning went out at Oct 24, 3:45 AM CDT, 58 minutes earlier.
Area forecast discussion, Oct 24, 3:45 AM CDT, 58 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 345 AM CDT THU OCT 24 2002 CURRENT...WSR-88D AND SATELLITE DATA INDICATES SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP WEST AND SOUTHWEST OF OUR CWFA. SURFACE DEWPOINTS RANGE FROM 50 ACROSS THE BIG COUNTRY...TO THE MID 50S ACROSS THE CONCHO VALLEY...AND AROUND 60 THROUGHOUT OUR SOUTHERN ZONES. IN ADDITION...SURFACE ANALYSIS PLACES FRONT ACROSS OUR SOUTHERN ZONES IN AN EAST TO WEST LINE. DAYS 1-3...MODEL DATA INDICATES THE MAIN SHOWER AND THUNDERSTORM ACTIVITY WILL DEVELOP OR MOVE ACROSS WEST CENTRAL TEXAS TODAY. ISENTROPIC ANALYSIS OF THE 300K AND 310K THETA E SURFACES SHOWS MAIN UPGLIDE WILL DEVELOP AROUND NOON TODAY. ALSO...BEST THETA E RIDGE ON THE 700 MB SURFACE DEVELOPS AROUND NOON. BEST SURFACE AND 925 MB MOISTURE CONVERGENCE DEVELOPS ALONG THE SURFACE FRONT TODAY. AS FOR POPS...WILL GO CLOSE TO GUIDANCE TODAY WITH A DOWNWARD TREND FOR TONIGHT AND FRIDAY. BASED ON LATEST COORDINATION CALL WITH SPC...WILL INCLUDE CROCKETT COUNTY IN A SEVERE THUNDERSTORM WATCH FOR TODAY. AS FOR HIGHS TODAY...APPEARS ETA AND AVN MOS TOO HIGH. LATEST RUC SUGGESTS TEMPERATURES ACROSS WEST CENTRAL TEXAS WILL CHANGE LITTLE IF ANY TODAY. FOR TONIGHT AND BEYOND...NUMBERS CLOSE TO GUIDANCE LOOK GOOD. DAYS 4-7...NO CHANGES HERE. CCF PRELIMS... ABI 050/048/060/048 8311 SJT 057/053/063/050 8322 JCT 065/058/065/053 8433 .SJT...SEVERE THUNDERSTORM WATCH CROCKETT COUNTY TODAY. 23/HUBER
Hazardous weather outlook, Oct 23, 2:30 PM CDT, 14 hours 13 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140- 154-155-168>170-232330- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 230 PM CDT WED OCT 23 2002 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS. .DAY ONE... THUNDERSTORMS WILL DEVELOP TONIGHT ACROSS WEST CENTRAL TEXAS AS AN UPPER LEVEL DISTURBANCE INTERACTS WITH A COLD FRONT. SOME OF THESE THUNDERSTORMS WILL PRODUCE HEAVY RAIN WHICH COULD CAUSE FLASH FLOODING. A FEW OF THE STORMS COULD REACH SEVERE LEVELS...WITH THE MAIN THREAT BEING LARGE HAIL. THE HEAVY RAIN AND HAIL THREAT WILL MAINLY BE SOUTH OF A STERLING CITY...BALLINGER...BROWNWOOD LINE. .SPOTTER CALL TO ACTION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED. .DAYS TWO THROUGH SEVEN... HEAVY RAIN WILL AGAIN BE A THREAT ACROSS WEST CENTRAL TEXAS LATE SATURDAY. 09
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 3:48 AM CDT | Flash Flood Warning | SJT | Kimble, Sutton | 5 hr |
| Oct 24, 7:08 AM CDT | Flash Flood Warning | SJT | Crockett | 5 hr |
| Oct 24, 9:55 AM CDT | Flash Flood Warning | SJT | Kimble, Sutton | 3 hr |
| Oct 24, 1:16 PM CDT | Flash Flood Warning | SJT | Kimble, Sutton | 6 hr |
Nearby
Flash Flood Warnings in Texas, 2002Every flash flood warning in 2002
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.