Alert archive / Texas / Flash Flood Warnings in 1994
Flash Flood Warning 13, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at Oct 17, 1994, 1:45 AM CDT for Harris County, Texas. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Oct 17, 1994, 1:45 AM CDT (06:45 UTC)
- Expired
- Oct 17, 1994, 4:00 AM CDT
- In force
- 2 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Harris County, TX
The radar
The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 06:34 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 6.8 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
- 17 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 727 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 149 m²/s²
- 0-3 km storm-relative helicity
- 165 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Oct 16, 8:21 PM CDT, 5 hours 24 minutes earlier.
Area forecast discussion, Oct 16, 8:21 PM CDT, 5 hours 24 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON, TX 820 PM CDT SUN OCT 16 1994 CURRENT PACKAGE LOOKS GOOD. ONLY CHANGE WILL BE TO INCLUDE LOCALLY HEAVY RAINFALL IN NORTHERN ZONES TONIGHT. 36
In the hours before
Special weather statement, Oct 16, 10:29 PM CDT, 3 hours 16 minutes before
TXZ197-210>212-226-227-235>237-511-1601000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 1022 PM SUN OCT 16 1994 ...FLASH FLOOD WARNINGS CONTINUE IN EFFECT FOR HOUSTON...TRINITY... MADISON...MONTGOMERY...POLK...WALKER...BRAZOS...BURLESON...GRIMES AND WASHINGTON COUNTIES... STRONG THUNDERSTORMS ACCOMPANIED WITH VERY HEAVY RAIN CONTINUE OVER PARTS OF EAST AND SOUTHEAST TEXAS. RADAR INDICATED RAINFALL OF THREE TO FIVE INCHES IN THE PAST THREE HOURS OVER MANY AREAS. ONE REPORT OF NINE INCHES IN THE VICINITY OF POST OAK MALL IN COLLEGE STATION WAS RECIEVED. LAW ENFORCEMENT AGENIES IN THE WARNED COUNTIES REPORT NUMEROUS ROADS AND STREETS ARE IMPASSABLE. DRIVERS ARE BEING URGED TO STAY OFF THE ROADS. THE HEAVY RAIN IS EXPECTED TO CONTINUE THROUGH THE NEXT THREE TO FOUR HOURS.
Special weather statement, Oct 16, 11:18 PM CDT, 2 hours 27 minutes before
TXZ211-210-227-198-213-163-200-199-179-178-164-177-212-197-041- 051-313-170615- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 1118 PM CDT SUN OCT 16 1994 ...FLASH FLOOD WARNING IN EFFECT FOR BRAZOS...BURLESON...GRIMES...AND WASHINGTON COUNTIES UNTIL 1245 AM... ...FLASH FLOOD WARNING IN EFFECT FOR HOUSTON...TRINITY...MADISON... MONTGOMERY...POLK...AND WALKER COUNTIES UNTIL 100 AM... LATEST SATELLITE PICTURES AND SURFACE OBSERVATIONS INDICATE EXTREMELY HEAVY RAIN CONTINUING TO FALL ACROSS SOUTHEAST TEXAS GENERALLY NORTH OF A LINE FROM COLUMBUS TO SPRING TO WOODVILLE. THE HEAVIEST RAINS WERE LOCATED FROM COLUMBUS TO BROOKSHIRE TO CONROE TO COLDSPRING TO CORRIGAN. IN ADDITION...COLLEGE STATION CONTINUES TO REPORT HEAVY RAIN. RAINFALL RATES ARE RUNNING 2 TO 3 INCHES AN HOUR. SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP NEAR COLORADO COUNTY AND MOVE TO THE NORTH NORTHEAST AT 20 TO 25 MILES AN HOUR. AT THIS TIME...HEAVY RAINS SHOULD CONTINUE TO CROSS LOCATIONS THAT HAVE ALREADY RECEIVED LARGE AMOUNTS OF RAIN FROM EARLIER TODAY AND THIS EVENING. 9 INCHES OF RAIN HAS BEEN REPORTED IN COLLEGE STATION. US 59 NEAR CORRIGAN IN POLK COUNTY IS CLOSED DUE TO THREE FEET OF STANDING WATER. IN WALLER COUNTY...WATER IS BEGINNING TO WASH OVER THE ROADS AND A FLASH FLOOD WARNING MAY BE REQUIRED WITHIN THE NEXT HOUR. CONDITIONS MAY DETERIORATE RAPIDLY THROUGH TONIGHT. STRONG WINDS...HAIL...AND DANGEROUS LIGHTNING HAIL ARE POSSIBLE WITH THESE THUNDERSTORMS. ALL PERSONS ACROSS THE COUNTIES WITH FLASH FLOOD WARNINGS AND WALLER COUNTY ARE URGED TO REMAIN INDOORS THROUGH TONIGHT. THIS IS A DANGEROUS WEATHER SITUATION! STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR FURTHER UPDATES.
Special weather statement, Oct 17, 12:36 AM CDT, 1 hour 9 minutes before
SPECIAL WEATHER STATEMENT...CORRECTED TO INCLUDE COUNTIES NATIONAL WEATHER SERVICE HOUSTON TX 1236 AM CDT MON OCT 17 1994 A TONADO WATCH IS IN EFFECT FOR MOST OF SOUTHEAST TEXAS UNTIL 700 AM CDT MONDAY MORNING. THIS WATCH INCLUDES THE FOLLOWING COUNTIES IN NORTHEAST...SOUTH CENTRAL AND SOUTHEAST TEXAS... ...TRINITY...AUSTIN...BRAZOS...BURLESON...COLORADO...WASHINGTON...WHARTON JACKSON...BRAZORIA...CHAMBERS...FORT BEND...GALVESTON...GRIMES HARRIS...LIBERTY...MONTGOMERY...WALKER...WALLER..SAN JACINTO... A WEAK BOUNDARY AT THE SURRFACE COMBINED WITH ABUNDANT SURFACE MOISTURE AND VERY USTABLE CONDITIONS ALOFT HAS PRODUCED WIDESPREAD STRONG THUNDERSTORMS OVER THE REGION. CONDITIONS ARE VERY FAVORABLE FOR DEVELOPMENT OF TORNADIC THUNDERSTORMS ACCOMPANIED BY DAMAGING THUNDERSTORRMS WINDS...LARGE HAIL...AND DANGEROUS LIGHTNING. INDICATIONS ARE THAT SOME OF THESE STORMS HAVE PRODUCED IN EXCESS OF 100 CLOUD TO GROUND LIGHTNING STRIKES IN A 5 MINUTE PERIOD. AT 12:30 AM CDT...THUNDERSTORMS EXTENDED NORTH OF A LINE FROM EAST BERNARD TO CROSBY TO ROMAYOR. RAINFALL AMOUNTS IN EXCESS OF 9 INCHES HAVE BEEN REPORTED WITH SOME OF THESE STORMS WITH 2 TO 4 INCHES FALLING WITHIN THE LAST HOUR. THE HEAVIEST RAINFALL IS CURRENTLY IN SOUTHWEST MONTGOMERY COUNTY AND SOUTHEAST SAN JACINTO COUNTY. STAY TUNED TO NOAA WEATHER RADIO...TV...OR YOUR FAVORITE RADIO STATION FOR FURTHER UPDATES ON THIS DANGEROUS WEATHER SITUATION.
Special weather statement, Oct 17, 12:36 AM CDT, 1 hour 9 minutes before
SPECIAL WEATHER STATEMENT...CORRECTED TO INCLUDE COUNTIES NATIONAL WEATHER SERVICE HOUSTON TX 1236 AM CDT MON OCT 17 1994 A TONADO WATCH IS IN EFFECT FOR MOST OF SOUTHEAST TEXAS UNTIL 700 AM CDT MONDAY MORNING. THIS WATCH INCLUDES THE FOLLOWING COUNTIES IN NORTHEAST...SOUTH CENTRAL AND SOUTHEAST TEXAS... ...TRINITY...AUSTIN...BRAZOS...BURLESON...COLORADO...WASHINGTON...WHARTON JACKSON...BRAZORIA...CHAMBERS...FORT BEND...GALVESTON...GRIMES HARRIS...LIBERTY...MONTGOMERY...WALKER...WALLER..SAN JACINTO... A WEAK BOUNDARY AT THE SURRFACE COMBINED WITH ABUNDANT SURFACE MOISTURE AND VERY USTABLE CONDITIONS ALOFT HAS PRODUCED WIDESPREAD STRONG THUNDERSTORMS OVER THE REGION. CONDITIONS ARE VERY FAVORABLE FOR DEVELOPMENT OF TORNADIC THUNDERSTORMS ACCOMPANIED BY DAMAGING THUNDERSTORRMS WINDS...LARGE HAIL...AND DANGEROUS LIGHTNING. INDICATIONS ARE THAT SOME OF THESE STORMS HAVE PRODUCED IN EXCESS OF 100 CLOUD TO GROUND LIGHTNING STRIKES IN A 5 MINUTE PERIOD. AT 12:30 AM CDT...THUNDERSTORMS EXTENDED NORTH OF A LINE FROM EAST BERNARD TO CROSBY TO ROMAYOR. RAINFALL AMOUNTS IN EXCESS OF 9 INCHES HAVE BEEN REPORTED WITH SOME OF THESE STORMS WITH 2 TO 4 INCHES FALLING WITHIN THE LAST HOUR. THE HEAVIEST RAINFALL IS CURRENTLY IN SOUTHWEST MONTGOMERY COUNTY AND SOUTHEAST SAN JACINTO COUNTY. STAY TUNED TO NOAA WEATHER RADIO...TV...OR YOUR FAVORITE RADIO STATION FOR FURTHER UPDATES ON THIS DANGEROUS WEATHER SITUATION.
Special weather statement, Oct 17, 12:47 AM CDT, 58 minutes before
SPECIAL WEATHER STATEMENT...CORRECTED TO INCLUDE COUNTIES NATIONAL WEATHER SERVICE HOUSTON TX 1236 AM CDT MON OCT 17 1994 A TONADO WATCH IS IN EFFECT FOR MOST OF SOUTHEAST TEXAS UNTIL 700 AM CDT MONDAY MORNING. THIS WATCH INCLUDES THE FOLLOWING COUNTIES IN NORTHEAST...SOUTH CENTRAL AND SOUTHEAST TEXAS... ...TRINITY...AUSTIN...BRAZOS...BURLESON...COLORADO...WASHINGTON...WHARTON JACKSON...BRAZORIA...CHAMBERS...FORT BEND...GALVESTON...GRIMES HARRIS...LIBERTY...MONTGOMERY...WALKER...WALLER..SAN JACINTO... A WEAK BOUNDARY AT THE SURRFACE COMBINED WITH ABUNDANT SURFACE MOISTURE AND VERY USTABLE CONDITIONS ALOFT HAS PRODUCED WIDESPREAD STRONG THUNDERSTORMS OVER THE REGION. CONDITIONS ARE VERY FAVORABLE FOR DEVELOPMENT OF TORNADIC THUNDERSTORMS ACCOMPANIED BY DAMAGING THUNDERSTORRMS WINDS...LARGE HAIL...AND DANGEROUS LIGHTNING. INDICATIONS ARE THAT SOME OF THESE STORMS HAVE PRODUCED IN EXCESS OF 100 CLOUD TO GROUND LIGHTNING STRIKES IN A 5 MINUTE PERIOD. AT 12:30 AM CDT...THUNDERSTORMS EXTENDED NORTH OF A LINE FROM EAST BERNARD TO CROSBY TO ROMAYOR. RAINFALL AMOUNTS IN EXCESS OF 9 INCHES HAVE BEEN REPORTED WITH SOME OF THESE STORMS WITH 2 TO 4 INCHES FALLING WITHIN THE LAST HOUR. THE HEAVIEST RAINFALL IS CURRENTLY IN SOUTHWEST MONTGOMERY COUNTY AND SOUTHEAST SAN JACINTO COUNTY. STAY TUNED TO NOAA WEATHER RADIO...TV...OR YOUR FAVORITE RADIO STATION FOR FURTHER UPDATES ON THIS DANGEROUS WEATHER SITUATION.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 16, 11:22 PM CDT | Severe Thunderstorm Warning | HGX | Harris, Waller | 68 min |
| Oct 17, 12:06 AM CDT | Tornado Warning | HGX | Montgomery | 69 min |
| Oct 17, 12:06 AM CDT | Tornado Warning | HGX | Harris | 39 min |
| Oct 17, 1:01 AM CDT | Flash Flood Warning | HGX | Harris, Liberty, Montgomery, Polk, San Jacinto | 3 hr |
| Oct 17, 1:01 AM CDT | Flash Flood Warning | HGX | Austin, Waller, Washington | 3 hr |
| Oct 17, 1:01 AM CDT | Flash Flood Warning | HGX | Brazos, Burleson | 3 hr |
| Oct 17, 1:01 AM CDT | Flash Flood Warning | HGX | Trinity, Walker | 3 hr |
| Oct 17, 1:01 AM CDT | Flash Flood Warning | HGX | Madison | 3 hr |
| Oct 17, 1:45 AM CDT | Flash Flood Warning | HGX | Austin, Waller, Washington | 2 hr |
| Oct 17, 1:45 AM CDT | Flash Flood Warning | HGX | Brazos, Burleson | 2 hr |
| Oct 17, 1:45 AM CDT | Flash Flood Warning | HGX | Liberty, Polk | 2 hr |
| Oct 17, 1:45 AM CDT | Flash Flood Warning | HGX | Grimes, Madison, Montgomery, San Jacinto, Trinity, Walker | 2 hr |
| Oct 17, 7:20 AM CDT | Tornado Warning | HGX | Chambers | 40 min |
Nearby
Flash Flood Warnings in Texas, 1994Every flash flood warning in 1994
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; radar from the NEXRAD Level II archive.