Alert archive / Texas / Flash Flood Warnings in 1990
Flash Flood Warning 70, NWS San Angelo, TX
NWS San Angelo, TX issued this flash flood warning at Sep 21, 1990, 4:55 PM CDT for Sterling County, Texas. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Sep 21, 1990, 4:55 PM CDT (21:55 UTC)
- Expired
- Sep 21, 1990, 7:21 PM CDT
- In force
- 2 hr
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties
County Sterling County, TX
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 9.9 hours before the alert went out and 109 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
- NaN m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Special weather statement, Sep 21, 11:44 AM CDT, 5 hours 11 minutes before
TXZ012-015-019-024-029-030-210030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABILENE TX 1130 AM CDT FRI SEP 21 1990 A FLASH FLOOD WATCH IS IN EFFECT FOR SCURRY...FISHER...MITCHELL AND NOLAN COUNTIES OF THE BIG COUNTRY UNTIL 700 PM CDT.... AT 1130 AM CDT SHOWERS AND THUNDERSTORMS WERE OCCURRING NORTH OF LINE FROM ROBERT LEE TO ABILENE MINERAL WELLS. THE HEAVIEST RAIN WAS LOCATED ALONG A LINE FROM LORAINE TO STAMFORD TO NEAR HUBBARD CREEK RESERVOIR. THE RAIN AREA IS MOVING SOUTHEAST AT 5 TO 10 MPH. VERY HEAVY RAIN...STRONG GUSTY WINDS...AND LOCALIZED FLOODING OF LOW LYING AREAS ARE LIKELY IN THESE STORMS. DURING THE PAST 12 HOURS RAINFALL REPORTED OF 2 TO 3 INCHES ACROSS THE NORTHERN COUNTIES OF THE BIG COUNTRY. PERSONS IN OR CLOSE TO THE FLASH FLOOD WATCH AREA SHOULD STAY ALERT FOR RISING WATER AND BE READY TO TAKE IMMEDIATION ACTION IF FLOODING IS SIGHTED OR REPORTED. STAY TUNED TO NOAA WEATHER RADIO FOR THE~ LATEST WEATHER INFORMATION.
Special weather statement, Sep 21, 3:54 PM CDT, 1 hour 1 minute before
TXZ017-029-018-212300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 353 PM CDT FRI SEP 21 1990 ...FLASH FLOOD WATCH IN EFFECT FOR CONCHO VALLEY EXCEPT EXTREME SOUTHEAST... AT 330PM SAN ANGELO RADAR INDICATED A LINE OF THUNDERSTORMS FORM NEAR OZONA NORTHEAST TO WEST OF MERTZON...CARLSBAD AND INTO THE BIG COUNTRY. THESE THUNDERSTORMS WITH VERY HEAVY RAINS...GUSTY WINDS...DANGEROUS LIGHTNING AND POSSIBLE SMALL HAIL IS SLOWLY MOVING TO THE EAST AT 10 MPH. THE GROUNDS ALREADY SATURATED WITH ADDITIONAL RAINFALLS WILL CAUSE FLOODING PROBLEMS IN THE CENTRAL CONCHO VALLEY FOR THIS AFTERNOON AND THIS EVENING. SATELLITE ESTIMATES OF RAINFALL IS VERY HEAVY IN THE AREA FROM CROCKETT COUNTY NORTHEAST INTO STERLING COUNTY. ALL PERSONS SHOULD TAKE NECESSARY PRECAUTIONS FOR ADDITIONAL HEAVY RAINFALL IN THE NEXT SEVERAL HOURS. STAY TUNED TO LOCAL RADIO AND TELEVISION STATIONS AND NOAA WEATHER RADIO FOR UP2DATED INFORMATION...
The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 9:18 PM CDT | Flash Flood Warning | SJT | Sutton | 12 hr |
| Sep 21, 4:55 PM CDT | Flash Flood Warning | SJT | Coke, Runnels, Tom Green | 2 hr |
Nearby
Flash Flood Warnings in Texas, 1990Every flash flood warning in 1990
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.