Alert archive / Texas / Flash Flood Warnings in 2001
Flash Flood Warning 85, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Sep 22, 2001, 5:16 AM CDT for Harris County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 22, 2001, 5:16 AM CDT (10:16 UTC)
- Expired
- Sep 22, 2001, 8:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Harris County, TX
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 10.3 hours before the alert went out and 213 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 311 J/kg
- Mixed-layer CIN
- -104 J/kg
- Mixed-layer LCL
- 1439 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KHGX 221020 FFWHOU TXC201-221315- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 516 AM CDT SAT SEP 22 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * FLASH FLOOD WARNING FOR... HARRIS COUNTY IN SOUTHEAST TEXAS * UNTIL 815 AM CDT * AT 512 AM CDT...DOPPLER RADAR INDICATED VERY HEAVY RAINFALL FROM NEAR TOMBALL TO ALDINE TO HUMBLE OF 2 TO 4 INCHES PER HOUR. * FLOODING IS EXPECTED IN THE AREA ALONG FM-1960 FROM HIGHWAY 290 TO HIGHWAY 59. DO NOT CROSS ANY LOCATION WHERE WATER COVERS THE ROAD USE EXTREME CAUTION AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DEPTH AND SPEED OF FLASH FLOOD WATERS. PLEASE REPORT FLOODING TO THE COUNTY SHERIFF...LOCAL POLICE...OR DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.
What forecasters said that day
The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Sep 22, 3:00 AM CDT, 2 hours 16 minutes earlier.
Area forecast discussion, Sep 22, 3:00 AM CDT, 2 hours 16 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 300 AM CDT SAT SEP 22 2001 BOUNDARIES LEFT OVER FROM LATE AFTERNOON/EVENING THUNDERSTORMS STILL STIRRING UP WEAK CONVECTION EARLY THIS MORNING. WEAK MID UPPER LOW OVER EAST TEXAS PROBABLY HELPING MAINTAIN THE INSTABILITY OF THE MOIST AIR MASS. MESO-ETA SHOWS WEAK UPPER LOW LINGERING TIL SUNDAY. UPPER HIGH JUST WEST OF REGION WILL EXPAND AND RIDGE NORTHWARD BY MONDAY AS BACK SIDE OF UPPER TROUGH OVER REGION MAINTAIN A DEEP NORTHERLY FLOW. FOR NEXT TWO DAYS...WILL CONTINUE TREND OF SCATTERED SHRA/TSRA. MESO-SCALE CONVECTION WILL SHAPE LOCAL WEATHER THIS WEEKEND...BUT TO A LESSER EXTENT ON SUNDAY AS MID LEVEL LOW WEAKENS FURTHER AND SAGS SOMEWHAT SOUTHWARD. SURFACE FRONT WILL PROBABLY MOVE ACROSS REGION MONDAY W/THE MORE SIGNIFICANTLY COOLER AIR LAGGING FARTHER NORTH. NORTHERLY FLOW IN THE WAKE OF FRONT WILL CONTINUE OVER REGION FOR SEVERAL DAYS NEXT WEEK. DRY WEATHER W/MILD DAYS AND COOL NIGHTS WILL BE THE RULE. FOR THE MARINE AREA...WILL HAVE LIGHT EAST TO SOUTHEAST WINDS THIS WEEKEND ALONG W/SCATTERED SHRA/TSRA...SCA CONDITIONS MAY BE EXPECTED MONDAY. 37/45/DH .HGX...NONE. PRELIMS... CLL EE 087/070 086/065 079 434 IAH EE 088/070 085/065 080 534 GLS EE 086/077 084/074 080 645
In the hours before
Local storm report, Sep 22, 12:08 AM CDT, 5 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1208 AM CDT SAT SEP 22 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0955 AM 5 N BAY CITY TX WIND DAMAGE
09/21/01 MATAGORDA TREES DOWN. REPORTED
BY LAW ENFORCEMENT
OFFICIAL.
0315 PM LIBERTY TX 60 MPH TSTM GUST
09/21/01 LIBERTY REPORTED BY MEDIA.
0339 PM 2 W CROCKETT TX WIND DAMAGE
09/21/01 HOUSTON TREES DOWN. REPORTED
BY LAW ENFORCEMENT
OFFICIAL.
0345 PM 3 SW BELLVILLE TX .88 INCH HAIL
09/21/01 AUSTIN REPORTED BY LAW
ENFORCEMENT OFFICIAL.
0345 PM 3 SW BELLVILLE TX WIND DAMAGE
09/21/01 AUSTIN TREE DOWN. REPORTED BY
STORM SPOTTER.
0505 PM SPRING TX .75 INCH HAIL
09/21/01 HARRIS HAIL REPORTED AT US 290
AND BELTWAY 8.
REPORTED BY HAM RADIO
OPERATOR.
0540 PM JACINTO CITY TX WIND DAMAGE
09/21/01 HARRIS A POSSIBLE TORNADO
DAMAGED A BUSINESS AND
KNOCKED DOWN A
BILLBOARD AND POWER
LINES. REPORTED BY
STORM SPOTTER.
0600 PM PEARLAND TX .75 INCH HAIL
09/21/01 BRAZORIA HAIL REPORTED AT SH 288
AND COUNTY ROAD 48.
REPORTED BY LAW
ENFORCEMENT OFFICIAL.
35Nearby
Flash Flood Warnings in Texas, 2001Every flash flood warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.