4 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 4 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 Sep 9, 5:56 AM CST, 4 minutes earlier.
SOUTHEAST TEXAS FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
655 AM CDT SUN SEP 8 2001
...UPDATE...
IR IMAGERY SHOWS CLOUD TOPS COOLING ACROSS CWA. OUTFLOW BOUNDARY
FROM MCS AND SEABREEZE FRONT TO PROVIDE STRONG CONVERGENCE ACROSS SE
TX TODAY. RAINFALL OF 3 TO 4 INCHES HAS ALREADY FALLEN ACROSS
BRAZOS/MADISON COUNTIES. WILL ISSUE FFA FOR ALL BUT COASTAL COUNTIES
FOR TODAY. ALSO WILL LOWER TEMPS AND RAISE POPS EVERYWHERE.
...PREVIOUS DISCUSSION...
ANALYSIS SHOWS TROPICAL AIRMASS IN PLACE ACROSS SE TX WITH 850 MB
DEWPOINTS OF 16C TO 18C...AND SURFACE DEWPOINTS IN THE UPPER 70S.
PWS PROGGED BY BOTH AVN/ETA TO HOVER AROUND 2 INCHES TODAY. 300 MB
DIFLUENCE WILL INCREASE ACROSS AREA THIS MORNING AS SE TX GOES INTO
RRQ OF JET MOVING ACROSS NW TX/OK. BOTH AVN/ETA SHOW STRONG LIFT
FROM SFC TO 500 MB THROUGH LATE THIS AFTN. REMNANTS OF MCS SHOULD
REACH NRN ZONES AFTER 10Z. OUTFLOW BOUNDARIES FROM THIS MCS WILL ACT
AS A FOCUS FOR CONVECTION THIS MORNING. SEABREEZE WILL ALSO SERVE AS
CONVECTIVE FOCUS TODAY AS PRESSURE GRADIENT RELAXES. EXPECT ISOLATED
RAINFALL AMOUNTS OF 2+ INCHES. WILL MENTION LOCALLY HEAVY RAIN IN
ZONES AND PUT OUT HWO FOR HEAVY RAINFALL. SEVERE WEATHER THREAT IS
MINIMAL AS SOUNDINGS WILL RUN NEARLY MOIST ADIABATIC TODAY AND MID
LEVEL WINDS WILL BE VERY WEAK...AROUND 10 KNOTS AT 500 MB.
AVN STILL RUNNING ABOUT 6 HOURS FASTER WITH FROPA ACROSS CWA...BUT
IS TOO HIGH CURRENTLY WITH SFC PRESSURES OVER THE PANHANDLE. WILL
LEAN TOWARD SLOWER MESOETA WITH MOVEMENT OF FRONT...REACHING NW
ZONES LATE TODAY AND COASTAL WATERS LATE TNGT. EXPECT TSRA TO
DIMINISH THIS EVENING WITH LOSS OF DAYTIME HEATING. PWS PROGGED TO
HOVER AROUND 1.8 TO 2 INCHES SRN HALF MONDAY...AND WILL LEAVE IN LOW
POPS FOR THESE AREAS. DRIER AIR WILL DEFINITELY TAKE ITS TIME
FILTERING IN ACROSS SE TX BEHIND FRONT. AVN IS MUCH MORE AGGRESSIVE
WITH DRYING LATE MONDAY/MONDAY NIGHT...BUT LIKELY TOO QUICK. WILL GO
ABOVE MAV GUIDANCE FOR TEMPS MONDAY NIGHT HOUSTON AND COAST.
FOR EXTENDED...500 MB HIGH BUILDS ACROSS TEXAS TUESDAY THROUGH THE
END OF THE WEEK. MUCH DRIER AIR SHOULD SPREAD AREA WIDE ON TUESDAY.
PER AVN...SYSTEM DEVELOPING NEAR FLORIDA WILL CONTINUE TO CIRCULATE
DRY AIR ACROSS SE TX THROUGH THE END OF THE WEEK. MIGHT SEE
DEWPOINTS IN THE UPPER 50S/LOWER 60S FOR ABOUT 3 DAYS
TUESDAY/WEDNESDAY NIGHTS WILL LIKELY BE THE COOLEST NIGHTS.
.HGX...FFA INLAND COUNTIES TODAY.
SCEC HIGH ISLAND TO MATAGORDA OUT 60 NM THIS MORNING.
35/46/TF
CLL TB 083/068 086/066 090 831
IAH TE 086/071 087/069 090 843
GLS TE 088/077 086/075 086 743TXZ163-164-176>179-195>200-210>214-226-227-235>238-092200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 345 AM CDT SUN SEP 9 2001 ...HEAVY RAINFALL POSSIBLE ACROSS SOUTHEAST TEXAS TODAY... A COLD FRONT MOVING ACROSS CENTRAL TEXAS WILL COMBINE WITH AN UPPER LEVEL DISTURBANCE TO PRODUCE SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ACROSS SOUTHEAST TEXAS TODAY. WITH DEEP TROPICAL MOISTURE IN PLACE ACROSS THE AREA...SOME OF THE STORMS WILL PRODUCE HEAVY RAINFALL. RAINFALL AMOUNTS WILL AVERAGE 1/2 TO 1 INCH ACROSS SOUTHEAST TEXAS TODAY. RAINFALL AMOUNTS OF 2 TO 3 INCHES WILL BE POSSIBLE IN SOME AREAS FROM THE HEAVIER STORMS. HEAVY RAINS COULD CAUSE FLOODING OF FEEDER ROADS AND LOW LYING AREAS AND PONDING OF WATER ON ROADWAYS. SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DIMINISH AFTER SUNSET. MOTORISTS SHOULD USE CAUTION TODAY. DO NOT DRIVE ACROSS ANY LOCATION WHERE WATER COVERS THE ROAD IT ONLY TAKES A FEW FEET OF RUNNING WATER TO SWEEP AWAY MOST VEHICLES. STAY TUNED TO NOAA WEATHER RADIO OR OTHER NEWS SOURCES FOR THE LATEST STATEMENTS.
The national radar mosaic for the moment the first event began.
4 flash flood. Local standard time, as filed.
Numerous cars flooded and roads closed in the Bryan and College Station areas; some secondary roads washed out in the county.
Flooding in Cochran's Crossing in the Woodlands; high water reported along Interstate 45 in Shenandoah.
Roads flooded just north of Hempstead.
Numerous roads flooded and closed, including roads along Skull Creek.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2001Every state in 2001This day in weather historyWarnings in Texas, September 2001
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: 5267726, 5267727, 5267728, 5267729.