1 lightning, as filed by the National Weather Service.
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.
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.
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 Houston/Galveston, TX wrote its last area forecast discussion before the first event at Aug 1, 1:40 PM CST, 3 hours 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 240 PM CDT SUN AUG 1 2004 .DISCUSSION... SCATTERED SHOWERS/THUNDERSTORMS EXTENDING FROM NEAR LIVINGSTON TO ROANS PRAIRIE TO JUST EAST OF CALDWELL. WESTERN PORTIONS OF CONVECTIVE ACTIVITY SAGGING SOUTHEAST WHILE NOT MUCH MOVEMENT OVER EASTERN SECTIONS. SCATTERED TSRA/SHRA NOTED ALSO OVER COASTAL REGION FROM CHAMBERS COUNTY TO GALVESTON BAY BECOMING ISOLATED WSW TOWARD SARGENT AND THE COASTAL WATERS. CONVECTION OVER NORTHERN PART OF CWFA HAS BEEN INDUCED BY WEAK UPPER LEVEL ENERGY COMBINED W/DAYTIME HEATING WHILE CONVECTIVE ACTIVITY TO THE SOUTH HELPED BY EASTERLY WAVE. PW VALUES QUITE HIGH...SLIGHTLY ABOVE 2 INCHES SOUTHEAST ZONES AND ABOUT 1.8 INCHES ELSEWHERE IN THE CWFA. AS MENTIONED IN PREVIOUS DISCUSSION...CAPES RATHER HIGH FROM 4-5 KJOULES/KG. STRONG GUSTY OUTFLOW WINDS FROM SOME TSTMS A POSSIBILITY THIS AFTERNOON. MODELS ALL INDICATE A DOWNWARD TREND IN PW VALUES BEGINNING MONDAY. UPPER HIGH CENTERED OVER NW TEXAS WILL STRENGTHEN AND RIDGE OVER OUR REGION MONDAY THROUGH WEDNESDAY. TEMPERATURES DURING THE AFTERNOON SHOULD RISE TO UPPER 90S WEST CENTRAL AND NW ZONES TUESDAY AND WEDNESDAY. DEWPOINTS EXPECTED TO BE IN THE LOWER 70S AFOREMENTIONED AREAS GFS AND ECMWF INDICATE UPPER HIGH CENTER RETROGRADING ON THURSDAY BRINGING IT TO FAR WEST TEXAS ON FRIDAY. HEIGHTS AND THICKNESS VALUES (AS PER GFS) START TO LOWER TOWARD END OF WEEK AND INTO NEXT WEEKEND. HOWEVER...ECMWF DIFFERS IN THAT IT STRENGTHENS UPPER HIGH AGAIN NEXT WEEKEND. WE SHALL LOWER POPS TO SLIGHT CHANCE MONDAY...NO POPS TUESDAY THROUGH THURSDAY AS SUBSIDENCE FROM UPPER RIDGE DOMINATES. LOWERING HEIGHTS AND INCREASE IN MOISTURE LEVELS NOTED TOWARD END OF WEEK. WE SHALL CONTINUE WITH SLIGHT CHANCE POPS BY THEN...EXTENDING SAME TO COMING WEEKEND. IF GFS IS CORRECT...OUR REGION WILL BE UNDER NORTHWEST FLOW ALOFT DURING THAT PERIOD. 37/47/BT && .HGX WATCHES/WARNINGS/ADVISORIES...NONE. && .PRELIMINARY POINT TEMPS/POPS... COLLEGE STATION (CLL) 76 97 76 98 76 / 30 10 05 10 05 HOUSTON(IAH) 78 97 78 97 78 / 30 20 10 10 05 GALVESTON (GLS) 81 93 81 93 82 / 30 20 10 10 05 &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 615 AM CDT SUN AUG 1 2004 TXZ163-164-176>179-195>200-210>214-226-227-235>238-012300- AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-GALVESTON- GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA-MONTGOMERY- POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON-WHARTON- 615 AM CDT SUN AUG 1 2004 ...HEAT INDICES APPROACHING DANGEROUS LEVELS BY AFTERNOON... .DAY ONE...TODAY AND TONIGHT. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED OVER THE REGION AGAIN TODAY. STORM MOTION WILL BE LESS THAN 10 MPH...SO SOME LOCALLY HEAVY RAINFALL TOTALS ARE POSSIBLE. RAINFALL WILL AVERAGE AROUND A HALF INCH WITH SOME ISOLATED TOTALS BETWEEN 2 AND 4 INCHES POSSIBLE. A DISTURBANCE OVER THE GULF WILL SLOWLY PUSH WEST TODAY. THIS FEATURE COUPLED WITH A WEAKENING UPPER LEVEL SHEAR AXIS OVER EAST TEXAS AND ABUNDANT MOISTURE WILL SET THE STAGE FOR SCATTERED TO NUMEROUS THUNDERSTORMS BY LATE AFTERNOON. TREMENDOUS LOW LEVEL INSTABILITY MAY COMPENSATE FOR MARGINAL UPPER LEVEL DYNAMICS...AND THERE IS POTENTIAL FOR SOME OF THE STORMS TO BECOME SEVERE. THE PRIMARY SEVERE WEATHER HAZARD WILL BE DAMAGING WINDS LATE THIS AFTERNOON AND EVENING. IN ADDITION TO THE AFOREMENTIONED WEATHER HAZARDS...VERY WARM TEMPERATURES COUPLED WITH HIGH HUMIDITY LEVELS WILL PRODUCE HEAT INDICES BETWEEN 103 AND 109 DEGREES TODAY. HEAT INDICES ABOVE 108 DEGREES CAN BE DANGEROUS AND POTENTIALLY LIFE THREATENING. UNUSUALLY HIGH HEAT INDICES WILL PERSIST INTO TUESDAY. IF FUTURE MODEL RUNS CONTINUE TO FORECAST HIGH DEW POINT TEMPERATURES...A HEAT ADVISORY MAY BE REQUIRED. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. HAZARDOUS WEATHER IS NOT ANTICIPATED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS AFTERNOON OR THIS EVENING.
The Houston radar (KHGX), 52 km away, was scanning. The volume nearest the first event began at 22:45 UTC.
1 lightning. Local standard time, as filed.
27 year old male killed at Magnolia Gardens Park on the San Jacinto River after lightning struck a nearby tree.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Lightning, Harris | 2004-08-01 | 27 | Male | Under Tree | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2004Every state in 2004This day in weather historyWarnings in Texas, August 2004
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: 5419787.