Alert archive / Texas / Flash Flood Warnings in 1994
Flash Flood Warning 2, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood warning at May 16, 1994, 1:52 AM CDT for Galveston County, Harris County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 16, 1994, 1:52 AM CDT (06:52 UTC)
- Expired
- May 16, 1994, 5:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
Counties Galveston County, TX, Harris County, TX
The radar
The Houston radar (KHGX), 12 km from the middle of the area, began a volume at 06:56 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, 6.9 hours before the alert went out and 193 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
- 237 J/kg
- Mixed-layer CIN
- -154 J/kg
- Mixed-layer LCL
- 1148 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHOU 160654 FFWHOU TXC167-201-161000- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HOUSTON TX 152 AM CDT MON MAY 16 1994 THE NATIONAL WEATHER SERVICE IN HOUSTON HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 500 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST TEXAS ...CENTRAL GALVESTON COUNTY...CENTRAL HARRIS COUNTY AT 145 AM CDT...A LINE OF THUNDERSTOMS EXTENDED FROM GALVESTON ISLAND NORTH TO NEAR HOUSTON INTERCONTINNENTAL AIRPORT. RAINFALL RATES OF 11/2 TO 2 INCHES AN HOUR ARE COMMON WITH THESE STORMS. THE LINE WAS MOVING VERY SLOWLY TO THE NORTH. THE HARRIS COUNTY SHERRIF HAS REPORTED MINOR STREET FLOODING IN THE VICINITY OF FM 529 AND HIGHWAY 6. NO OTHER FLOODING HAS BEEN REPORTED AT THIS TIME...HOWEVER THIS HEAVY RAINFALL COUPLED WITH THE HEAVY RAINFALL OF THE PAST 48 HOURS MAKES THIS A VERY THREATENING SITUATION. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS TTHE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. &
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 May 15, 8:32 PM CDT, 5 hours 20 minutes earlier.
Area forecast discussion, May 15, 8:32 PM CDT, 5 hours 20 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON, TX 831 PM CDT SUN MAY 15 1994 ATTM...CYC CIRCULATION PARKED OVER SE TX AND MID LVL IMPULSE ON H20 VAPOR SATL PIX MOVG TWD S TX. AFTN CONVECTION HAD BEEN DVLPG OVER BRAZORIA COUNTY AND MOVG W. 88D RAINFALL ESTIMATES HAVE BEEN >2 INCHES/HR IN EXTREME NW BRAZORIA/EXTREME S FORT BEND COUNTIES. EXPECT ACTIVITY TO WEAKEN WITH CONTINUED LOSS OF DAYTIME HEATING. FRONT FCST TO BECOME NEARLY STATIONARY OVER SE TX NEXT 48 HRS. WITH MID/UPPER LVL FEATURES REMAINING OVER FA...WILL LWR (NOT ELIMINATE) POPS TONIGHT ALL COUNTIES EXCEPT SRN FA. REST OF PACKAGE LOOKS GOOD. WILL BE INTERESTING TO SEE HOW MODELS PERFORM WITH NO UPPER AIR DATA SRN HALF OF TX. 42
In the hours before
Special weather statement, May 15, 10:58 PM CDT, 2 hours 54 minutes before
TXZ211-227-213-212-160600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 1058 PM CDT SUN MAY 15 1994 ...SHOWERS WITH HEAVY RAIN AFFECTING PORTIONS OF SOUTHEAST TEXAS... AT 1055 PM...SHOWERS CONTAINING MODERATE TO HEAVY RAIN WERE FALLING OVER SOUTHEAST TEXAS FROM BRENHAM TO PEARLAND. HARRIS COUNTY FLOOD CONTROL INDICATES UP TO 1.50 OF RAIN HAS OCCURRED IN THE KATY AREA. SATELLITE A RADAR ESTIMATES INDICATE BETWEEN 1.50 AND 2.50 INCHES OF RAIN MAY HAVE FALLEN WITHIN THE PAST THREE HOURS NEAR INTERSTATE 10 BETWEEN KATY AND SEALY. THESE RAINS CONTINUE TO REFORM SOUTH OF THE HOUSTON AREA AND MOVE TO THE NORTHWEST ACROSS THE SAME LOCATIONS THAT HAVE ALREADY RECEIVED RAIN. ANY FURTHER RAINFALL MAY LEAD TO LOCALIZED FLOODING. MOTORISTS SHOULD USE EXTREME CAUTION WHEN DRIVING IN AREAS WITH STANDING WATER.
Special weather statement, May 15, 10:59 PM CDT, 2 hours 53 minutes before
TXZ211-227-213-212-160600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON TX 1058 PM CDT SUN MAY 15 1994 ...SHOWERS WITH HEAVY RAIN AFFECTING PORTIONS OF SOUTHEAST TEXAS... AT 1055 PM...SHOWERS CONTAINING MODERATE TO HEAVY RAIN WERE FALLING OVER SOUTHEAST TEXAS FROM BRENHAM TO PEARLAND. HARRIS COUNTY FLOOD CONTROL INDICATES UP TO 1.50 OF RAIN HAS OCCURRED IN THE KATY AREA. SATELLITE A RADAR ESTIMATES INDICATE BETWEEN 1.50 AND 2.50 INCHES OF RAIN MAY HAVE FALLEN WITHIN THE PAST THREE HOURS NEAR INTERSTATE 10 BETWEEN KATY AND SEALY. THESE RAINS CONTINUE TO REFORM SOUTH OF THE HOUSTON AREA AND MOVE TO THE NORTHWEST ACROSS THE SAME LOCATIONS THAT HAVE ALREADY RECEIVED RAIN. APNY FURTHER RAINFALL MAY LEAD TO LOCALIZED FLOODING. MOTORISTS SHOULD USE EXTREME CAUTION WHEN DRIVING IN AREAS WITH STANDING WATER.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 2:09 AM CDT | Severe Thunderstorm Warning | HGX | Galveston, Harris | 66 min |
| May 16, 4:59 AM CDT | Flash Flood Warning | HGX | Harris | 4 hr |
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.