Flash Flood and Hail in Texas, April 8, 2002

Name: Flash Flood and Hail in Texas, April 8, 2002
Start: 2002-04-08T00:40
End: 2002-04-08T04:30
Location: Texas

April 8, 2002 · NWS EWX · 3 events in 1 county or zone

2 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: $80,000
Crop damage: $50,000
Events: 3

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 Austin/San Antonio, TX wrote its last area forecast discussion before the first event at Apr 8, 12:35 AM CST, 5 minutes earlier.

Area forecast discussion, Apr 8, 12:35 AM CST, 5 minutes before

SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
135 AM CDT MON APR 8 2002

UPDATED AND REALLIGNED ZONES FOR WATCH #77 VALID UNTIL 5 AM.
BACKING BUILDING STORMS OVR THE S CNTRL CWA ALONG WEAK OUTFLOW
BOUNDARY CONTG TO TRACK NEWD ACRS THE ERN CWA THIS MORNING.
WITH TRAINING OF STORMS ACRS THE SERN COUNTIES...WILL ISSUE FFA THRU
10 AM.  UNDER GOOD SUBSIDENSE BY 18Z AS THE UPR TROF AND DRY LINE
MOV EAST.  CDFNT TO PUSH SWD THRU CWA TONIGHT BUT STALLING ALONG THE
COAST AS AN INVERTED TROF TUE.  NEXT UPR LOW TO DIG INTO THE SW
U.S./NRN MEX BY LATE THIS WEEK AND PUSHING EAST BY SUN.

PRELIMINARY NUMBERS...
AUS 84/57/78/54 5000
DRT 89/58/82/60 0000
SAT 85/58/80/57 5000

.EWX...FLASH FLOOD WATCH THRU 10 AM FOR MUCH OF THE ERN/SERN CWA.

In the hours before

Local storm report, Apr 7, 7:18 PM CST, 5 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
818 PM CDT SUN APR 7 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0725 PM    DHANIS                   TX   1.75 INCH HAIL
04/07/02   MEDINA                         REPORTED BY
                                          SPOTTER

0730 PM    BLANCO                    TX   FUNNEL CLOUDS
04/07/02   BLANCO                         FUNNEL CLOUDS
                                          REPORTED BY
                                          CO-OP OBSERVER

DC

Local storm report, Apr 7, 7:46 PM CST, 4 hours 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
846 PM CDT SUN APR 7 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0829 PM    7E FRIO TOWN              TX   .75 INCH HAIL
04/07/02   FRIO                           REPORTED BY
                                          SPOTTERS

DC

Local storm report, Apr 7, 8:39 PM CST, 4 hours 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
939 PM CDT SUN APR 7 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0847 PM    BIGFOOT                   TX   TORNADO
04/07/02   FRIO                           REPORTED BY LAW
                                          ENFORCEMENT

DC

Local storm report, Apr 7, 9:02 PM CST, 3 hours 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
1002 PM CDT SUN APR 7 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0945 PM    FLORESVILLE               TX   1.75 INCH HAIL
04/07/02   WILSON                         REPORTED BY LAW
                                          ENFORCEMENT

DC

Local storm report, Apr 7, 9:55 PM CST, 2 hours 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
1055 PM CDT SUN APR 7 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0830 PM    2.5 N DEVINE              TX   WIND DAMAGE
04/07/02   MEDINA                         TWO MOBILE HOMES
                                          DESTROYED. VEHICLE PICKED
                                          UP AND SLAMMED DOWN
                                          REPORTED
                                          BY LAW ENFORCEMENT

DC

Local storm report, Apr 7, 11:00 PM CST, 1 hour 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
1200 AM CDT MON APR 8 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1155 PM    SHAVANO PARK SAN ANTONIO  TX   1.75 INCH HAIL
04/07/02   BEXAR                          REPORTED BY LAW
                                          ENFORCEMENT

DC

The radar

The Austin/San Antonio radar (KEWX), 56 km away, was scanning. The volume nearest the first event began at 06:37 UTC.

Open the radar archive at this moment

Event by event

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

Hail, Bexar

When: April 8, 12:40 AM CST to 12:50 AM CST
Where: Bexar County, San Antonio
Measured: 1.75 in hail
Reported by: GENERAL PUBLIC
Coordinates: 29.417, -98.500

Hail, Bexar

When: April 8, 1:25 AM CST to 1:35 AM CST
Where: Bexar County, Martinez
Measured: 1.75 in hail
Reported by: GENERAL PUBLIC
Coordinates: 29.417, -98.333

Flash Flood, Bexar

When: April 8, 1:30 AM CST to 4:30 AM CST
Where: Bexar County, San Antonio
Property damage: $80,000
Crop damage: $50,000
Reported by: EMERGENCY MANAGER
Coordinates: 29.449, -98.520 (the zone’s center; the record gives no point)

Flash flooding erupted over large sections of San Antonio as general 2 inch rain amounts fell over the northern part of the county, with up to 4 inches in the north central portion. Damage was mainly to roads across the city.

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 2002 Every state in 2002 This day in weather history Warnings in Texas, April 2002

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: 5285406, 5285407, 5285486.