Flash Flood and Hail in Texas, August 18, 2001

Name: Flash Flood and Hail in Texas, August 18, 2001
Start: 2001-08-18T15:30
End: 2001-08-18T18:15
Location: Texas

August 18, 2001 · NWS SJT · 2 events in 2 counties and zones

1 hail, 1 flash flood, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Aug 18, 1:00 PM CST, 2 hours 30 minutes earlier.

Area forecast discussion, Aug 18, 1:00 PM CST, 2 hours 30 minutes before

WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
200 PM CDT SAT AUG 18 2001

LATEST WATER VAPOR IMAGERY INDICATING MID- AND UPPER-LEVEL MOISTURE
STILL LINGERING OVER TEXAS THIS AFTERNOON. LATEST LAMP SURFACE WIND
STREAMLINE ANALYSIS SHOWS MAINLY SOUTHERLY FLOW OVER TEXAS WITH SOME
LOW-LEVEL CONVERGENCE ALONG AND NEAR THE RED RIVER. LATEST METAR
DATA SHOWS SURFACE DEWPOINTS IN THE 60S ACROSS MOST OF CWFA.

NEAR TERM...MODELS CONTINUE TO MOVE UPPER RIDGE OVER CENTRAL TEXAS
BY TOMORROW AFTERNOON. MODEL TIME-HEIGHT SERIES SHOWS MUCH DRIER AIR
AT 700 MB AND ABOVE MOVING OVER TEXAS BY MIDNIGHT TONIGHT. IN
ADDITION...APPEARS 850 MB TEMPERATURES WILL WARM ONE OR TWO DEGREES
CELSIUS DURING THE NEXT 48 HOURS. OUTFLOW BOUNDARY...WHICH MOVED
ACROSS OUR CWFA A FEW HOURS AGO...MAY BE A FOCUS FOR CONVECTION
DEVELOPING THIS EVENING. THUS...WILL INCLUDE A MENTION OF EVENING
SHOWERS OR THUNDERSTORMS FOR THE SOUTHERN ZONES. OTHERWISE...POPS
NIL. WITH DRIER AIR AND 850 MB WARMING BEGINNING...EXPECT SUNNY
DAYS...CLEAR NIGHTS...AND AFTERNOON HIGHS AROUND 100 BY THE END OF
THE PERIOD.

EXTENDED...WILL CONTINUE DRY EXTENDED WITH LOWS IN THE LOWER 70S AND
AFTERNOON HIGHS AROUND 100...WELL ABOVE SEASONAL NORMALS.

CCF PRELIMS...

ABI 071/097/072/099  00/00/00/00
SJT 072/098/073/100  00/00/00/00
JCT 074/099/073/101  20/00/00/00

.SJT...NONE.

23/HUBER

In the hours before

Special weather statement, Aug 18, 1:30 PM CST, 2 hours before

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-182300-

WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
230 PM CDT SAT AUG 18 2001

...ISOLATED NON SEVERE THUNDERSTORMS ARE POSSIBLE IN THE NORTHERN
EDWARDS PLATEAU AND NORTHWEST HILL COUNTRY THIS EVENING...

AFTERNOON HEATING COMBINED WITH A MOIST AND SLIGHTLY UNSTABLE
ATMOSPHERE WILL ALLOW THE DEVELOPMENT OF ISOLATED THUNDERSTORMS THIS
EVENING...ALONG AND SOUTH OF AN OZONA...ELDORADO...MASON LINE.

WITH ONLY WEAK INSTABILITY...STORMS THAT DEVELOP ARE NOT EXPECTED TO
BECOME SEVERE. STORMS WILL END IN THE EARLY EVENING WITH LOSS OF THE
SUNS HEATING. DRIER AIR MOVING IN FROM THE NORTH WILL PREVENT THE
DEVELOPMENT OF STORMS ELSEWHERE IN WEST CENTRAL TEXAS.

SPOTTER ACTIVATION IS NOT ANTICIPATED.

FOR THE SOUTHWEST TEXAS AND SOUTHEAST NEW MEXICO OUTLOOK SEE PRODUCT
LBBSPSMAF. FOR THE SOUTH PLAINS OUTLOOK SEE PRODUCT LBBSPSLBB. FOR
THE CENTRAL OKLAHOMA OUTLOOK SEE PRODUCT OKCSPSOKC. FOR THE NORTH
TEXAS OUTLOOK SEE PRODUCT FTWSPSFTW. FOR THE SOUTH CENTRAL TEXAS
OUTLOOK SEE PRODUCT SATSPSSAT.

04

Special weather statement, Aug 18, 3:00 PM CST, 30 minutes before

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-182300-

WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
400 PM CDT SAT AUG 18 2001

...ISOLATED NON SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS WEST
CENTRAL TEXAS THROUGH THIS EVENING...

AFTERNOON HEATING COMBINED WITH A MOIST AND SLIGHTLY UNSTABLE
ATMOSPHERE WILL ALLOW THE DEVELOPMENT OF ISOLATED THUNDERSTORMS
THROUGH EARLY EVENING ACROSS MUCH OF WEST CENTRAL TEXAS. THE BEST
CHANCE OF DEVELOPMENT WILL BE ALONG AND NORTH OF INTERSTATE 20 IN
THE BIG COUNTRY...AND ALONG INTERSTATE 10 IN THE NORTHERN EDWARDS
PLATEAU AND NORTHWEST HILL COUNTRY. THESE AREAS HAVE HAD THE MOST
AFTERNOON HEATING BY THE SUN.

WITH ONLY WEAK INSTABILITY...STORMS THAT DEVELOP ARE NOT EXPECTED TO
BECOME SEVERE. STORMS WILL END IN THE EARLY EVENING WITH LOSS OF THE
SUNS HEATING.

SPOTTER ACTIVATION IS NOT ANTICIPATED.

FOR THE SOUTHWEST TEXAS AND SOUTHEAST NEW MEXICO OUTLOOK SEE PRODUCT
LBBSPSMAF. FOR THE SOUTH PLAINS OUTLOOK SEE PRODUCT LBBSPSLBB. FOR
THE CENTRAL OKLAHOMA OUTLOOK SEE PRODUCT OKCSPSOKC. FOR THE NORTH
TEXAS OUTLOOK SEE PRODUCT FTWSPSFTW. FOR THE SOUTH CENTRAL TEXAS
OUTLOOK SEE PRODUCT SATSPSSAT.

04

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 hail, 1 flash flood. Local standard time, as filed.

Hail, Taylor

When: August 18, 3:30 PM CST
Where: Taylor County, Trent
Measured: 0.75 in hail
Reported by: POST OFFICE
Coordinates: 32.483, -100.133

Flash Flood, Fisher

When: August 18, 5:15 PM CST to 6:15 PM CST
Where: Fisher County, 5 mi SW of Roby
Reported by: GENERAL PUBLIC
Coordinates: 32.743, -100.402 (the zone’s center; the record gives no point)

Rainfall of nearly 5 inches brought flooding to the central sections of Fisher County. County Road 446 near the community of Claytonville was washed out by high water.

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Flash Flood: Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Texas in 2001 Every state in 2001 This day in weather history Warnings in Texas, August 2001

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5264351, 5264350.