Flash Flood and Hail in Texas, May 1, 2003

Name: Flash Flood and Hail in Texas, May 1, 2003
Start: 2003-05-01T15:58
End: 2003-05-01T21:00
Location: Texas

May 1, 2003 · NWS SJT · 10 events in 5 counties and zones

9 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: 10

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 May 1, 2:20 PM CST, 1 hour 38 minutes earlier.

Area forecast discussion, May 1, 2:20 PM CST, 1 hour 38 minutes before

WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
320 PM CDT THU MAY 01 2003

CURRENT...
19Z ANALYSIS SHOWS THE DRYLINE STRETCHING FROM NEAR CROSS
PLAINS...TO SAN ANGELO AND OZONA. A FEW SHOWERS HAVE DEVELOPED ALONG
AND SOUTHEAST OF THIS LINE. DEWPOINTS RANGE FROM AROUND 30 NORTH AND
WEST...TO THE MID 60S SOUTHEAST. A WEAK UPPER RIDGE IS BEGINNING TO
BUILD IN FROM THE WEST.

TONIGHT AND FRIDAY...
TONIGHT THE DRYLINE WILL DRIFT SLIGHTLY FURTHER SOUTHEAST...HELPING
TO TRIGGER ISOLATED STORMS GIVEN THE ABUNDANT LOW/MID LEVEL
MOISTURE. ALSO WITH CAPES RUNNING UP TO 4000J/KG AND ENOUGH
SHEAR...EXPECT A FEW OF THESE STORMS WILL BECOME SEVERE.
WITH A COLD FRONT SLIDING DOWN FROM THE NORTH AND THE DRYLINE
HANGING ON ACROSS THE SOUTHEAST COUNTIES...WILL CONTINUE WITH A
SLIGHT CHANCE OF SHOWERS ON FRIDAY. ANOTHER ROUND OF SEVERE WEATHER
COULD AGAIN AFFECT THE FURTHEST SOUTHEAST COUNTIES.

SATURDAY AND SUNDAY...
THE NEXT UPPER TROUGH BEGINS TO PUSH INTO THE WESTERN STATES ON
SATURDAY. ALSO THE FRONTAL BOUNDARY LIFTS BACK NORTH OUT OF THE BIG
COUNTRY. THIS WILL HELP TO TRIGGER A FEW SHOWERS NORTH AND EAST BY
SATURDAY AFTERNOON/NIGHT. BY SUNDAY WITH THE UPPER TROUGH LIFTING
INTO THE PLAINS...THIS WILL PUSH A LEESIDE TROUGH/DRYLINE THROUGH
WEST CENTRAL TEXAS...HELPING TO TRIGGER OFF A FEW STORMS. HOWEVER
WITH LIMITED MOISTURE...THE BEST CHANCES OF SHOWERS WILL ONCE AGAIN
BE IN THE SOUTHEAST.

MONDAY THROUGH THURSDAY...
MONDAY A STRONGER COLD FRONT PUSHES THROUGH MUCH OF THE AREA.
HOWEVER WITH AS THE UPPER SYSTEM PULLS WELL OFF TO THE
NORTHEAST...THE TAIL END OF THE FRONT WILL STALL OUT ACROSS
SOUTHWEST TEXAS. HOW FAR SOUTH THE FRONT STALLS OUT WILL DETERMINE
WHEN THE BEST CHANCES OF SHOWERS WILL OCCUR THROUGH MIDWEEK. IF IT
STALLS OUT TOO FAR SOUTH AND WEST...EXPECT ONLY A SLIGHT CHANCE FOR
LIMITED TIME FRAME AS THE FRONT LIFTS NORTHEAST. HOWEVER IF IT
STALLS OUT ALONG THE SOUTHERN AND WESTERN ZONES...THERE COULD BE A
LINGERING CHANCE OF SHOWERS THROUGH THURSDAY. FOR NOW WILL GO WITH
THE MIDDLE OF THE ROAD AND KEEP POPS MENTIONED TUESDAY INTO
WEDNESDAY.

OTHERWISE...EXPECT ABOVE NORMAL TEMPERATURES THROUGH
SUNDAY...SOUTH OF THE FRONT AND BELOW NORMAL NORTH OF THE FRONT.
NEAR TO SLIGHTLY BELOW NORMAL TEMPS CAN BE EXPECTED MONDAY
THROUGH THURSDAY.

CCF PRELIMS..
ABI BE 060/089 062/092 066 24-11
    EBEEB 089/059 086/055 080/054 079/062 082 11100012211
SJT UE 061/096 063/096 067 240-0
    BBEEB 092/058 088/054 083/056 083/064 086 01100022221
JCT BE 065/094 065/093 070 24222
    EBEEB 090/061 087/059 085/057 082/065 085 22201022221

.SJT...TORNADO WATCH FOR SOUTHEAST COUNTIES.

24

Hazardous weather outlook, May 1, 2:45 AM CST, 13 hours 13 minutes before

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-020845-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
345 AM CDT THU MAY 1 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

04

The radar

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

Open the radar archive at this moment

Event by event

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

Hail, McCulloch

When: May 1, 3:58 PM CST
Where: McCulloch County, 3 mi SW of Brady
Measured: 1.75 in hail
Reported by: TRAINED SPOTTER
Coordinates: 31.100, -99.367

Hail, McCulloch

When: May 1, 4:17 PM CST
Where: McCulloch County, Brady
Measured: 0.75 in hail
Reported by: TRAINED SPOTTER
Coordinates: 31.133, -99.333

Hail, Mason

When: May 1, 4:35 PM CST
Where: Mason County, 6 mi N of Mason
Measured: 1.75 in hail
Reported by: TRAINED SPOTTER
Coordinates: 30.817, -99.217

Hail, McCulloch

When: May 1, 4:55 PM CST
Where: McCulloch County, Placid
Measured: 1 in hail
Reported by: TRAINED SPOTTER
Coordinates: 31.317, -99.183

Hail, Mason

When: May 1, 5:18 PM CST
Where: Mason County, Mason
Measured: 1.75 in hail
Reported by: TRAINED SPOTTER
Coordinates: 30.733, -99.217

Hail, Mason

When: May 1, 5:30 PM CST to 5:36 PM CST
Where: Mason County, Mason
Measured: 2.75 in hail
Reported by: TRAINED SPOTTER
Coordinates: 30.733, -99.217

Hail, Sutton

When: May 1, 5:40 PM CST
Where: Sutton County, 5 mi E of Sonora
Measured: 0.75 in hail
Reported by: LAW ENFORCEMENT
Coordinates: 30.567, -100.550

Hail, Menard

When: May 1, 6:02 PM CST
Where: Menard County, 2 mi N of Menard
Measured: 1.75 in hail
Reported by: TRAINED SPOTTER
Coordinates: 30.950, -99.783

Flash Flood, Mason

When: May 1, 7:35 PM CST to 9:00 PM CST
Where: Mason County, Mason
Reported by: LAW ENFORCEMENT
Coordinates: 30.718, -99.226 (the zone’s center; the record gives no point)

The Mason County Sheriff reported several road closures due to flash flooding in the town of Mason.

Hail, Kimble

When: May 1, 7:46 PM CST
Where: Kimble County, Segovia
Measured: 0.88 in hail
Reported by: LAW ENFORCEMENT
Coordinates: 30.417, -99.667

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 2003 Every state in 2003 This day in weather history Warnings in Texas, May 2003

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: 5358703, 5358704, 5358702, 5358265, 5358701, 5358264, 5358263, 5358262, 5358261, 5358260.