Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 36, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood warning at Jul 4, 2002, 7:47 AM CDT for Sutton 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
- Jul 4, 2002, 7:47 AM CDT (12:47 UTC)
- Expired
- Jul 4, 2002, 10:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS San Angelo, TX
- Area
- Counties, with a storm outline in the text
County Sutton 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 12:00Z, 0.8 hours before the alert went out and 123 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
- 1375 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 533 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KSJT 041247 FFWSJT TXC435-041545- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANGELO TX 746 AM CDT THU JUL 4 2002 THE NATIONAL WEATHER SERVICE HAS ISSUED A * FLASH FLOOD WARNING FOR... SUTTON COUNTY IN SOUTHWEST TEXAS * UNTIL 1045 AM CDT * AT 746 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN OVER SUTTON COUNTY...TO THE SOUTHEAST OF SONORA ALONG INTERSTATE 10. MOTORIST TRAVELING ALONG I-10 EAST OF SONORA SHOULD BE ON THE ALERT FOR FLOODING. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. LAT...LON 3041 10063 3028 10048 3032 10014 3067 10021
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 Jul 4, 2:52 AM CDT, 4 hours 55 minutes earlier.
Area forecast discussion, Jul 4, 2:52 AM CDT, 4 hours 55 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 252 AM CDT THU JUL 4 2002 VERY LITTLE MOVEMENT IN UPPER LEVEL SHEAR AXIS WILL DICTATE THIS MORNINGS FORECAST... WILL KEEP STATUS QUO UNTIL EVIDENCE OF AN ACTUAL WESTWARD DRIFT IS APPARENT. LATEST RUC HAS VIRTUAL NO MOVEMENT OVER THE NEXT 12 HOURS. RAINFALL MOSAIC IS AS HAS BEEN AS WILL BE... BEST CHANCE OF RAINFALL WILL BE ALONG AND EAST OF NEARLY STATIONARY SHEAR AXIS WITH WRAPAROUND SHOWERS TREKKING SOUTH ON BACKSIDE. CURRENT BREAKOUT OF FLASH FLOOD WATCH SHOULD SUFFICE FOR TODAY AS WELL... SO WILL REISSUE. HEAVIEST RAINFALL WILL AGAIN BE OVER EASTERN HALF OF CWA WITH LIGHTER WRAPAROUND RAINFALL AMOUNTS. AS HAS BEEN THE PATTERN WITH THIS SYSTEM... RAINFALL SHOULD SLACK OFF DURING THE DAYTIME HOURS WITH AREAL COVERAGE INCREASING AFTER MIDNIGHT TONIGHT. WILL CARRY FAIRLY HIGH POPS ALL AREAS TODAY AND SLIGHTLY LESS TONIGHT. WILL ELECT TO GO WITH THE PERSISTENCE OF UPPER LEVEL SHEAR AXIS BISECTING CWA INTO FRIDAY. RAINFALL PATTERN SHOULD SHIFT TO WESTERN CWA LATE FRIDAY AND INTO FRIDAY NIGHT WITH THE CONTINUED CHANCE OF ISOLATED CONVECTION OVER EASTERN HALF OF CWA FRIDAY AFTERNOON AND EVENING GIVEN GOOD RESIDUAL MOISTURE. FOR THE EXTENDED... WILL CONTINUE CURRENT DRY FORECAST UNTIL ADDITIONAL MODEL RUNS VALIDATE UPPER LEVEL DISTURBANCE AND ASSOCIATED PRECIP FCSTD BY THE MRF FOR MID WEEK. ABI 082/069/088/071 5332 SJT 083/070/087/071 5432 JCT 084/070/089/071 5422 .SJT...FLASH FLOOD WATCH FOR MASON...MENARD... MCCULLOCH... KIMBLE...SAN SABA...BROWN...CALLAHAN...COLEMAN...CONCHO...SCHLEICHER ...SUTTON...TOM GREEN...COKE...AND TAYLOR COUNTIES TONIGHT. 15
In the hours before
Special weather statement, Jul 4, 4:39 AM CDT, 3 hours 8 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140- 154-155-168>170-041345- WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 439 AM CDT THU JUL 4 2002 SPOTTER ACTIVATION IS NOT ANTICIPATED. ...SCATTERED THUNDERSTORMS WITH HEAVY RAINFALL ARE EXPECTED ACROSS MUCH OF WEST CENTRAL TEXAS AGAIN TODAY...FLASH FLOOD WATCH IS IN EFFECT FOR MUCH OF THE AREA. SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS MUCH OF WEST CENTRAL TEXAS TODAY. SEVERE STORMS ARE NOT ANTICIPATED...BUT FREQUENT LIGHTNING AND VERY HEAVY RAIN WILL PRODUCE RAINFALL AMOUNTS OF 3 TO 5 INCHES WILL IN PARTS OF WEST CENTRAL TEXAS...MAINLY EAST OF A SWEETWATER TO BALLINGER TO MENARD LINE. ABUNDANT MOISTURE WILL REMAIN ACROSS THE AREA AND THE ADDITIONAL SHOWERS AND STORMS WILL PERSIST INTO TONIGHT...THIS WILL CREATE A POTENTIAL FOR FLASH FLOODING...ESPECIALLY IN AREAS WHICH EXPERIENCED HEAVY RAIN OVERNIGHT. ADDITIONAL INFORMATION PLEASE SEE STATEMENTS AND OUTLOOKS FROM NATIONAL WEATHER SERVICE OFFICES ACROSS TEXAS...OKLAHOMA...AND NEW MEXICO.
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 12:04 AM CDT | Flash Flood Warning | SJT | Brown, Coleman | 6 hr |
| Jul 4, 5:40 PM CDT | Flash Flood Warning | SJT | Coke | 3 hr |
| Jul 4, 5:43 PM CDT | Flash Flood Warning | SJT | Coke | 3 hr |
| Jul 4, 6:02 PM CDT | Flash Flood Warning | SJT | Sterling | 3 hr |
| Jul 4, 6:43 PM CDT | Flash Flood Warning | SJT | Tom Green | 3 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.