Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 1, NWS Brownsville, TX
NWS Brownsville, TX issued this flash flood warning at Aug 7, 1998, 8:24 PM CDT for Brooks County, Jim Hogg County, Texas. It was in force for 2 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
- Aug 7, 1998, 8:24 PM CDT (01:24 UTC)
- Expired
- Aug 7, 1998, 10:25 PM CDT
- In force
- 2 hr
- Issued by
- NWS Brownsville, TX
- Area
- Whole counties
Counties Brooks County, TX, Jim Hogg County, TX
The radar
The Corpus Christi radar (KCRP), 125 km from the middle of the area, began a volume at 01:30 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
Corpus Christi, TX (KCRP), launched 00:00Z, 1.4 hours before the alert went out and 135 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
- 2435 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 1046 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 44 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 KBRO 080123 FFWBRO TXC047-247-080325- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BROWNSVILLE TX 824 PM CDT FRI AUG 7 1998 THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHERN JIM HOGG COUNTY IN SOUTHERN TEXAS NORTHWESTERN AND WEST CENTRAL BROOKS COUNTY IN SOUTHERN TEXAS * UNTIL 1025 PM CDT * AT 810 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN OVER NORTHWESTERN AND WEST CENTRAL BROOKS COUNTY AND NORTHERN JIM HOGG COUNTY. THESE STORMS WERE NEARLY STATIONARY. * DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! AREA RESIDENTS SHOULD MONITOR FLOOD CONDITIONS... AND BE PREPARED TO MOVE TO HIGHER GROUND... SHOULD FLOOD WATERS THREATEN. IF FLASH FLOODING IS OBSERVED... ACT QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. 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. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW MUCH WATER IS ON ROADS. MOTORISTS SHOULD NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH. VALONE
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 Brownsville, TX wrote its last area forecast discussion before this flash flood warning went out at Aug 7, 7:50 PM CDT, 34 minutes earlier.
Area forecast discussion, Aug 7, 7:50 PM CDT, 34 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 750 PM CDT FRI AUG 7 1998 CONVECTION ONGOING ACROSS PARTS OF THE NORTH CENTRAL AND WESTERN CWA. RADAR ESTIMATES OF PRECIP FROM LAST NIGHT ENDED UP BEING TOO HIGH BY ABOUT A FACTOR OF TWO. IF THIS IS HOLDING TRUE FOR THIS EVENING...SOME SPOTS HAVE RECEIVED BETWEEN 1.5 AND 2 INCHES FROM STORMS. HAVE YET TO FIND ANY SPOTTERS OR COOP OBSERVERS WHO HAVE GOTTEN ANY HAIL...EVEN THO RADAR KEEPS PINGING HAIL WITH VILS IN THE MID 60S. STORMS ARE RATHER FAR AWAY...AND EVEN .5 DEGREE NOT SEEING BELOW 10K FEET. REPORTS OF SURFACE WINDS IN THE 35 TO 45 MPH RANGE. CONVECTION ONCE AGAIN FIRING IN LINE WITH UPPER SHORTWAVE AXIS. PLENTY OF OLD BOUNDARIES LEFT FROM LAST NIGHT ALSO. ADAP MOISTURE CONVERGENCE HAS BULLSEYE ABOUT WHERE ACTIVITY OCCURRING. WOULD RECOMMEND LEAVING MENTION OF RW/TRW THROUGH MIDNIGHT...THEN TAPERING OFF FOR CENTRAL AND WESTERN ZONES. OTHERWISE OVERNIGHT PACKAGE LOOKS GOOD. LOOKING AT 12Z RUN FROM THIS MORNING AND OVERALL PATTERN...WOULD EXPECT MUCH THE SAME TO HAPPEN AGAIN TOMORROW...AS UPPER SHORTWAVE ENERGY AXIS REMAINS ABOUT SAME PLACE. SEE NO REALLY SIGNIFICANT CHANGES TO LEAD ME TO THINK TOMORROW TO BE MUCH DIFFERENT. VALONE...61
In the hours before
Special weather statement, Aug 7, 6:25 PM CDT, 1 hour 59 minutes before
TXZ248>250-252-253-080500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 625 PM CDT FRI AUG 7 1998 ...ANOTHER ROUND OF MUCH NEEDED RAINFALL FOR PARTS OF CENTRAL AND WESTERN DEEP SOUTH TEXAS THIS EVENING... AT 620 PM NATIONAL WEATHER SERVICE RADAR INDICATED THUNDERSTORMS SCATTERED ACROSS STARR COUNTY...WITH DEVELOPING SHOWERS AND STORMS OVER BROOKS AND EXTREME NORTHWEST HIDALGO COUNTIES. THE STORMS WERE MOVING SLOWLY NORTHWARD TOWARD JIM HOGG COUNTY...WHILE BUILDING WESTWARD TOWARD ZAPATA COUNTY. AS HAS BEEN THE CASE FOR THE PAST FEW DAYS...LOCALLY HEAVY RAINFALL UP TO AROUND 2 INCHES IS POSSIBLE FROM ANY OF THESE STORMS. EVEN THOUGH SOME PARTS OF STARR COUNTY RECEIVED IN EXCESS OF 2 INCHES OF RAINFALL LAST EVENING...THE GROUND IS STILL VERY CAPABLE OF ABSORBING MUCH WATER. HOWEVER...VERY HEAVY RAIN IN A SHORT PERIOD OF TIME COULD LEAD TO PONDING OF WATER ON ROADS AND STREETS...OVERFLOW OF LOW-LYING OR POOR DRAINAGE AREAS...OR EVEN VERY LOCALIZED FLASH-FLOODING. IN ADDITION TO POSSIBLE HEAVY RAIN...SOME OF THE STORMS MAY CONTAIN STRONG GUSTY WINDS TO NEAR 45 MPH...AND SMALL HAIL. MOTORISTS TRAVELING THROUGH ZAPATA...STARR...JIM HOGG...AND BROOKS CO$UNTIES ARE URGED TO USE CAUTION THIS EVENING. DO NOT DRIVE OVER AREAS WHERE WATER COVERS THE ROAD...IT MAY BE HIDING A POTENTIAL HAZARD. VALONE
Special weather statement, Aug 7, 6:25 PM CDT, 1 hour 59 minutes before
TXZ248>250-252-253-080500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 625 PM CDT FRI AUG 7 1998 ...ANOTHER ROUND OF MUCH NEEDED RAINFALL FOR PARTS OF CENTRAL AND WESTERN DEEP SOUTH TEXAS THIS EVENING... AT 620 PM NATIONAL WEATHER SERVICE RADAR INDICATED THUNDERSTORMS SCATTERED ACROSS STARR COUNTY...WITH DEVELOPING SHOWERS AND STORMS OVER BROOKS AND EXTREME NORTHWEST HIDALGO COUNTIES. THE STORMS WERE MOVING SLOWLY NORTHWARD TOWARD JIM HOGG COUNTY...WHILE BUILDING WESTWARD TOWARD ZAPATA COUNTY. AS HAS BEEN THE CASE FOR THE PAST FEW DAYS...LOCALLY HEAVY RAINFALL UP TO AROUND 2 INCHES IS POSSIBLE FROM ANY OF THESE STORMS. EVEN THOUGH SOME PARTS OF STARR COUNTY RECEIVED IN EXCESS OF 2 INCHES OF RAINFALL LAST EVENING...THE GROUND IS STILL VERY CAPABLE OF ABSORBING MUCH WATER. HOWEVER...VERY HEAVY RAIN IN A SHORT PERIOD OF TIME COULD LEAD TO PONDING OF WATER ON ROADS AND STREETS...OVERFLOW OF LOW-LYING OR POOR DRAINAGE AREAS...OR EVEN VERY LOCALIZED FLASH-FLOODING. IN ADDITION TO POSSIBLE HEAVY RAIN...SOME OF THE STORMS MAY CONTAIN STRONG GUSTY WINDS TO NEAR 45 MPH...AND SMALL HAIL. MOTORISTS TRAVELING THROUGH ZAPATA...STARR...JIM HOGG...AND BROOKS CO$UNTIES ARE URGED TO USE CAUTION THIS EVENING. DO NOT DRIVE OVER AREAS WHERE WATER COVERS THE ROAD...IT MAY BE HIDING A POTENTIAL HAZARD. VALONE
Nearby
Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998
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.