Alert archive / Texas / Flash Flood Warnings in 2003
Flash Flood Warning 19, NWS Brownsville, TX
NWS Brownsville, TX issued this flash flood warning at Sep 17, 2003, 3:31 PM CDT for Hidalgo 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 outline as issued.
The facts
- Issued
- Sep 17, 2003, 3:31 PM CDT (20:31 UTC)
- Expired
- Sep 17, 2003, 6:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Brownsville, TX
- Area
- Counties, with a storm outline in the text
County Hidalgo County, TX
The radar
The Brownsville radar (KBRO), 78 km from the middle of the area, began a volume at 20:35 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Brownsville Intl, TX (KBRO), launched 12:00Z, 8.5 hours before the alert went out and 80 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
- 1674 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 569 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KBRO 172037 FFWBRO TXC215-172330- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BROWNSVILLE TX 331 PM CDT WED SEP 17 2003 THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A * FLASH FLOOD WARNING FOR... HIDALGO COUNTY IN DEEP SOUTH TEXAS * UNTIL 630 PM CDT * AT 330 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. DOPPLER RADAR ESTIMATED NEARLY TWO INCHES OF RAINFALL HAS BEEN RECEIVED IN AN AREA SOUTH OF MCALLEN TO THE CITY OF HIDALGO. MCALLEN AIRPORT HAS RECEIVED NEARLY SEVEN TENTHS OF AN INCH OF RAINFALL DURING THE PAST HOUR. * THUNDERSTORMS WITH TORRENTIAL RAINFALL ARE FORMING SOUTH AND SOUTHWEST OF SOUTHERN HIDALGO COUNTY AND WILL BRING ADDITIONAL HEAVY RAINFALL TO THIS AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...HIDALGO...WESLACO...SAN JUAN...PHARR...MISSION... MERCEDES...MCALLEN...EDINBURG...EDCOUCH...DONNA...ALAMO AND PROGRESO. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES... DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. LAT...LON 2634 9789 2589 9788 2609 9852 2664 9829 $$ PHILO
2 follow-up statements
000 WGUS74 KBRO 172123 FFSBRO TXC215-172330- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 416 PM CDT WED SEP 17 2003 ...FLASH FLOOD WARNING CONTINUES UNTIL 630 PM CDT FOR SOUTHEASTERN HIDALGO COUNTY... AT 415 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS SOUTHERN HIDALGO COUNTY...BUILDING EAST INTO ADJACENT CAMERON COUNTY. SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLOODING TO OCCUR...ESPECIALLY ALONG SMALL STREAMS AND NEAR LOW WATER CROSSINGS. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... HIDALGO...WESLACO...SAN JUAN...PHARR...MISSION...MERCEDES... MCALLEN...EDINBURG...EDCOUCH...DONNA...ALAMO AND PROGRESO. STREET FLOODING IS BEING REALIZED IN CITIES OF SOUTHERN HIDALGO COUNTY...ALONG WITH PONDING AND DANGEROUS DRIVING CONDITIONS ALONG HIGHWAY 83. REMEMBER...NEVER DRIVE YOUR VEHICLE INTO WATERS OF UNKNOWN DEPTH. ALWAYS DRIVE ACCORDING TO WEATHER CONDITIONS. MONITOR NOAA WEATHER RADIO...COMMERCIAL RADIO AND TELEVISION OR YOUR LOCAL CABLE OUTLET FOR THE LATEST WEATHER INFORMATION UPDATES. LAT...LON 2637 9789 2602 9787 2603 9833 2638 9833 $$ PHILO
000 WGUS74 KBRO 172334 FFSBRO TXC215-180000- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 626 PM CDT WED SEP 17 2003 ...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR HIDALGO COUNTY HAS BEEN ALLOWED TO EXPIRE... DOPPLER RADAR INDICATES THE HEAVY RAIN HAS DECREASED OVER THE WARNED AREA. A THIN BAND OF SHOWERS REMAINS OVER THE SOUTHEAST CORNER OF THE COUNTY EXTENDING SOUTHWEST FROM WESLACO TO JUST SOUTH OF THE TOWN OF HIDALGO. THE SHOWER BAND IS WEAKENING AS IT MOVES NORTH-NORTHWEST AT 10 MILES PER HOUR. LITTLE OR NO SHOWER ACTIVITY IS LEFT TO THE SOUTH AND SOUTHEAST OF HIDALGO COUNTY NOW... THEREFORE THE FLOOD THREAT WILL END SHORTLY. IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 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. LAT...LON 2666 9805 2605 9791 2604 9835 2659 9839 $$
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 Sep 17, 3:00 PM CDT, 31 minutes earlier.
Area forecast discussion, Sep 17, 3:00 PM CDT, 31 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 300 PM CDT WED SEP 17 2003 .SHORT TERM...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE TO DRIFT WESTWARD FROM THE GULF OF MEXICO THROUGH DEEP SOUTH TEXAS AS MOISTURE AND INSTABILITY REMAIN PLENTIFUL ACROSS THE RIO GRANDE VALLEY. WEAK FLOW REGIME COUPLED WITH TROPICAL TYPE AIR MASS WILL LEND ITSELF TO CONTINUED SCATTERED SHOWERS AND THUNDERSTORM THROUGH THE NEXT 48 HOURS. A WEAK COLD FRONT IS EXPECTED TO DROP SOUTH THROUGH CENTRAL TEXAS FRIDAY AND MAY STALL NORTH OF THE VALLEY...AGAIN ALLOWING MOISTURE TO POOL ALONG THE FRONT. GIVEN SATURATED GROUND CONDITIONS AND FFG VALUES AROUND 1.5 INCHES...LOCALIZED FLOODING IS POSSIBLE. .EXTENDED...ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGH THE WEEKEND AS MOISTURE AN INSTABILITY REMAIN IN PLACE ACROSS THE REGION. A SLIGHTLY DRIER AIRMASS WILL MOVE INTO DEEP SOUTH TEXAS NEXT WEEK AS A COLD FRONT IS LIKELY TO PASS THROUGH THE COAST BY THURSDAY. SHOWERS AND THUNDERSTORMS WILL ACCOMPANY THE LEADING EDGE OF THE COLD FRONT AND DRIER MORE STABLE AIR IS EXPECTED IN THE POST FRONTAL AIR BY THURSDAY. .MARINE...AT 1 PM BUOY 020 REPORTED EAST WINDS AT 14 KNOTS WITH GUSTS TO 19 KNOTS AND SEAS AT 4 FEET 6 SECONDS. BROWNSVILLE DOPPLER RADAR DETECTED SCATTERED SHOWERS AND THUNDERSTORMS OVER THE MARINE AREAS. A HIGH PRESSURE RIDGE STRETCHES ACROSS TEXAS WHILE A LOW PRESSURE TROUGH EXTENDS ACROSS DEEP SOUTH TEXAS AND ALONG THE NORTHEAST COAST OF MEXICO. EXPECT SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WITH LIGHT TO MODERATE EAST TO SOUTHEAST WINDS THROUGH THURSDAY. A WEAK COLD FRONT IS EXPECTED TO MOVE ACROSS THE MARINE AREAS FRIDAY PRODUCING MODERATE NORTHEAST WINDS AND SCATTERED SHOWERS AND THUNDERSTORMS. SATURDAY AND SUNDAY SHOULD BE A LITTLE DRIER WITH ONLY ISOLATED SHOWERS AND THUNDERSTORMS. A STRONGER COLD FRONT IS EXPECTED TO MOVE ACROSS THE MARINE AREAS EARLY NEXT WEEK. .AVIATION...VFR CONDITIONS WITH TEMPORARY MVFR OR IFR CONDITIONS ARE OCCURRING AT THE REGIONAL AIRPORTS THIS AFTERNOON. EXPECT VFR CONDITIONS WITH PERIODS OF MVFR OR IFR CONDITIONS TO CONTINUE OVER THE REGIONAL AIRPORTS OF DEEP SOUTH TEXAS THE NEXT FEW DAYS. THE MVFR OR IFR CONDITIONS WILL OCCUR DURING SHOWERS OR THUNDERSTORMS. LIGHT TO MODERATE EAST TO SOUTHEAST WINDS ARE EXPECTED OVER THE CWA THROUGH THURSDAY. .PRELIMINARY POINT TEMPS/POPS... BROWNSVILLE ET 073/087 073/087 073 70/60/60/40/20 HARLINGEN ET 072/088 072/088 072 60/60/60/40/20 MCALLEN ET 072/090 072/090 072 60/60/60/40/20 RIO GRANDE CITY ET 071/091 071/091 071 40/60/60/40/20 SOUTH PADRE ISLAND ET 081/086 081/086 081 40/60/60/40/20 .BRO...NONE. SYNOPTIC/GRIDS...53 MARINE/AVIATION...63 THIS PRODUCT IS ALSO AVAILABLE ON OUR INTERNET WEB PAGE AT: HTTP://WWW.SRH.NOAA.GOV/BRO
Hazardous weather outlook, Sep 17, 6:00 AM CDT, 9 hours 31 minutes before
TXZ248>257-181100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BROWNSVILLE TX 600 AM CDT WED SEP 17 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS. .DAY ONE...TODAY AND TONIGHT. THE CHANCE FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER DEEP SOUTH TEXAS...AS A HIGH PRECIPITABLE WATER CONTENT IS MAINTAINED BY A DEEP LAYER ONSHORE FLOW. THE GREATEST WEATHER HAZARD TODAY AND THIS EVENING WILL BE BRIEF LOCALIZED FLOODING. NO SPOTTER ACTIVATION IS ANTICIPATED. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. THE CHANCES OF BRIEF LOCALIZED FLOODING WILL INCREASE ON THURSDAY AND FRIDAY...IN AN ATMOSPHERE WITH ABUNDANT MOISTURE AHEAD OF A WEAK FRONTAL BOUNDARY EXPECTED TO MOVE THROUGH DEEP SOUTH TEXAS ON FRIDAY. A STRONGER COLD FRONT WILL BREEZE THROUGH THE AREA MONDAY NIGHT AND EARLY ON TUESDAY...TOUCHING OFF MORE SHOWERS AND THUNDERSTORMS WITH THE CHANCE OF BRIEF LOCALIZED FLOODING FOR MONDAY AND EARLY TUESDAY. .SPOTTER INFORMATION STATEMENT. NO SPOTTER ACTIVATION IS ANTICIPATED. 59
Nearby
Flash Flood Warnings in Texas, 2003Every flash flood warning in 2003
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.