Texas, 2002Flash Flood and Flooding in Texas, October 20, 2002
October 20, 2002 · NWS BRO · 5 events in 3 counties and zones
2 flood, 2 thunderstorm wind, 1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 3 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
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 5
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 Brownsville, TX wrote its last area forecast discussion before the first event at Oct 20, 7:30 PM CST, 1 minute earlier.
Area forecast discussion, Oct 20, 7:30 PM CST, 1 minute before
DEEP SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
830 PM CDT SUN OCT 20 2002
.SHORT TERM...RRQ OF UPR JET ALONG WITH SFC BOUNDARY REAPED ALL OF
THE 4K J/KG CAPE IN ATM TNGT. SVR TSTMS CONTINUE TO DEVELOP.
ZFPBRO UPDATED FOR CURRENT WX.
.MARINE DISCUSSION...THE POTENTIAL FOR ISOLATED THUNDERSTORMS WILL
CONTINUE OVER THE COASTAL WATERS THROUGH MID WEEK...AS MOIST GULF
AIR IS DESTABILIZED BY CONDITIONS ALOFT. THE AVN IS MORE AGGRESSIVE
WITH RAINFALL AREAL COVERAGE AND AMOUNT. WINDS WILL REMAIN LIGHT TO
MODERATE FROM THE SOUTHEAST...WITH SEAS MODERATE AS WELL. NO FLAGS
ARE EXPECTED IN THE SHORT TERM. BY MID WEEK A COLD FRONT PUSHES
SOUTH INTO CENTRAL AND EAST TEXAS...AND THE AVN THEN DEVELOPS
DEEPENING SURFACE LOW PRESSURE IN EAST TEXAS LATE IN THE WEEK. IF
THIS VERIFIES...WINDS WILL INCREASE OVER THE LOWER TEXAS COASTAL
WATERS TOWARD THE END OF THE WEEK...THOUGH SMALL CRAFT ADVISORIES
STILL APPEAR MARGINAL AT THIS POINT.
SYNOPTIC...PHILO (58)
AVIATION-MARINE-MESO...HARO/ABBOTT
INTERNET ADDRESS...WWW.SRH.NOAA.GOV/BRO
.BRO...URBAN SMALL STREAM FLOOD ADV TXC215 THRU 0230Z.
Hazardous weather outlook, Oct 20, 4:35 PM CST, 2 hours 56 minutes before
TXZ248>257-211100-
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BROWNSVILLE TX
535 PM CDT SUN OCT 20 2002
THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS.
.DAY ONE...
SHOWERS AND THUNDERSTORMS HAVE DEVELOPED ALONG A SURFACE TROUGH OF
LOW PRESSURE. SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS THE REGION
TONIGHT. SOME STORMS COULD BE SEVERE...PRODUCING TORRENTIAL
DOWNPOURS...DAMAGING WINDS...AND LARGE HAIL. ISOLATED THUNDERSTORMS
ALSO HAVE THE POTENTIAL TO PRODUCE TORNADOES.
.SPOTTER CALL TO ACTION STATEMENT...
SPOTTER ACTIVATION IS NEEDED AT THIS TIME OVER HIDALGO...WILLACY AND
CAMERON COUNTIES. EMERGENCY MANAGERS ARE ASKED TO MONITOR WEATHER
CONDITIONS CLOSELY.
.DAYS TWO THROUGH SEVEN...
NO HAZARDOUS WEATHER IS EXPECTED.
Event by event
2 flood, 2 thunderstorm wind, 1 flash flood. Local standard time, as filed.
Flood, Cameron
- When
- October 20, 7:31 PM CST to 8:00 PM CST
- Where
- Cameron County, San Benito
- Reported by
- NWS EMPLOYEE(OFF DUTY)
- Coordinates
- 26.152, -97.453 (the zone’s center; the record gives no point)
Street flooding was reported in San Benito by an off-duty NWS employee.
Thunderstorm Wind, Cameron
- When
- October 20, 7:43 PM CST
- Where
- Cameron County, Los Fresnos
- Measured
- 60 kt (69 mph)
- Reported by
- NWS EMPLOYEE(OFF DUTY)
- Coordinates
- 26.067, -97.483
Thunderstorm winds downed power lines, damaged a power pole, and severed tree limbs in Los Fresnos.
Flood, Cameron
- When
- October 20, 7:43 PM CST
- Where
- Cameron County, Los Fresnos
- Reported by
- NWS EMPLOYEE(OFF DUTY)
- Coordinates
- 26.152, -97.453 (the zone’s center; the record gives no point)
Street flooding was reported in Los Fresnos by an off-duty NWS employee.
Thunderstorm Wind, Willacy
- When
- October 20, 8:20 PM CST
- Where
- Willacy County, Raymondville
- Measured
- 75 kt (86 mph)
- Reported by
- BROADCAST MEDIA
- Coordinates
- 26.483, -97.783
Thunderstorm winds produced damage to several mobile home awnings and roofs in the Gulf View RV Park in Raymondville. A few small trees were uprooted while larger trees had limbs severed. A storm survey found evidence of winds to 75 mph.
Flash Flood, Hidalgo
- When
- October 20, 8:36 PM CST to 9:15 PM CST
- Where
- Hidalgo County, Progreso
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 26.397, -98.181 (the zone’s center; the record gives no point)
Flash flooding in Progreso resulted in several closed roads and water entering homes in town.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- 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.
- Hail in Texas, October 20, 2002$500,000 · 1.75 in hail · 2 events
- Tornado in Alabama, October 20, 2002$20,000 · F0 · 1 event
- Flood and Hail in Texas, October 20, 20021.75 in hail · 5 events
- Heavy Snow in Minnesota, October 20, 20023 events
- Heavy Snow in North Dakota, October 20, 20022 events
- High Wind in Alaska, October 20 to 21, 200252 kt wind · 2 events
- Heavy Snow in Wisconsin, October 20 to 21, 20022 events
- Damaging Wind in Alabama, October 20, 2002$5,000 · 50 kt wind · 1 event
- Hail in Alabama, October 20, 20020.88 in hail · 1 event
- Flood in Texas, October 20, 20021 event
- Heavy Snow in Minnesota, October 20 to 21, 20021 event
- Heavy Snow in Wisconsin, October 20 to 21, 20021 event
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: 5320002, 5320003, 5320063, 5320062, 5320064.