1 lightning, 1 hail, 1 thunderstorm wind, 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 18, 12:50 PM CST, 2 hours 10 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 150 PM CDT WED AUG 18 2004 DISCUSSION... SCATTERED CONVECTION OVER COASTAL ZONES SPREADING SLOWLY FARTHER INLAND. SCATTERED TO BROKEN CUMULI COVER NOW OVER MUCH OF CWFA. SHORT WAVE MOVING ACROSS BIG BEND WILL BRING LIFT OVER OUR REGION THURSDAY. PWATS INCREASING TO NEAR 2 INCHES AFTER MIDNIGHT AND STAYING NEAR THAT VALUE THROUGH THURSDAY. THIS SHORT WAVE WILL ATTACH ITSELF TO MAIN UPPER TROUGH THAT EXTENDS NORTH TO CANADA AND WILL TAKE ITS TIME MOVING EAST. TROUGH LINE SHOULD BE NEAR TX/LA BORDER BY SATURDAY MORNING. TIME CROSS SECTIONS...ALONG WITH PROGGED UPPER LEVEL FIELD...WOULD INDICATE BEST LIFT LATER TONIGHT THROUGH THURSDAY...AND PERHAPS LATE FRIDAY NIGHT. 300/200 MB SPEED MAX MOVING ACROSS REGION FRIDAY NIGHT IN CONJUNCTION WITH UPPER TROUGH LINE PUSHING THROUGH. WE SHALL CONTINUE WITH CHANCE POPS TOMORROW THROUGH SATURDAY...BUT LOWER THURSDAY NIGHT INLAND. STORM MOTION AS PER SOUNDINGS WOULD INDICATE SW/15 KTS FOR TOMORROW. SOME AREAS MAY GET A GOOD SOAKING TOMORROW. SATURDAY WILL BE A TRANSITION TO LESSER CHANCES POPS. DO NOT SEE SIGNIFICANT UPPER LEVEL ENERGY PASSING OVER REGION AFTER SATURDAY. UPPER HIGH WILL BUILD OVER THE GULF EARLY NEXT WEEK...AND AS PER GFS UPPER HIGH CENTER WILL BE OVER OUR REGION BY THE MIDDLE PART OF NEXT WEEK. AVIATION...SCATTERED TO BROKEN LOW CLOUDS (BASES NEAR 1500 FT) EXPECTED OVER REGION LATE TONIGHT. SCATTERED SHRA/TSRA TOWARD MORNING CAN BE EXPECTED ESPECIALLY NEAR COAST. MARINE...ONSHORE FLOW CONTINUING FOR NEXT SEVERAL DAYS WITH WIND SPEEDS AND SEAS REMAINING BELOW CAUTION LEVEL. 37/47 && .HGX WATCHES/WARNINGS/ADVISORIES...NONE. && .PRELIMINARY POINT TEMPS/POPS... COLLEGE STATION (CLL) 73 90 74 93 75 / 30 50 30 40 30 HOUSTON IAH) 74 89 75 93 75 / 30 50 30 40 30 GALVESTON (GLS) 78 88 79 88 79 / 30 50 30 40 30
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 659 AM CDT WED AUG 18 2004 TXZ163-164-176>179-195>200-210>214-226-227-235>238-191200- 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- 659 AM CDT WED AUG 18 2004 .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The Houston radar (KHGX), 52 km away, was scanning. The volume nearest the first event began at 21:47 UTC.
1 lightning, 1 hail, 1 thunderstorm wind. Local standard time, as filed.
17 year old male injured in front of Aldine High School. Victim was sitting on a bench next to a nearby tree that was struck by lightning.
3/4 inch hail in Magnolia.
Tree down.
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: 5418591, 5418592, 5418593.