Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 71, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at Sep 10, 2001, 7:42 AM CDT for Cameron County, Texas. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Sep 10, 2001, 7:42 AM CDT (12:42 UTC)
- Expired
- Sep 10, 2001, 8:30 AM CDT
- In force
- 48 min
- Issued by
- NWS Brownsville, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Cameron County, TX
The radar
The Brownsville radar (KBRO), 3 km from the middle of the area, began a volume at 12:46 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
Brownsville Intl, TX (KBRO), launched 12:00Z, 0.7 hours before the alert went out and 4 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
- 2341 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 545 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
795 WUUS54 KBRO 101242 SVRBRO TXC061-101330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BROWNSVILLE TX 742 AM CDT MON SEP 10 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN CAMERON COUNTY IN DEEP SOUTH TEXAS * UNTIL 830 AM CDT * AT 740 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES SOUTHEAST OF BROWNSVILLE...MOVING NORTHWEST AT 10 MPH. THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE DIME SIZE HAIL... AND WINDS IN EXCESS OF 60 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BROWNSVILLE...CAMERON PARK BY 830 AM CDT. IN ADDITION TO HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. LAT...LON 2578 9738 2592 9716 2615 9742 2606 9771 PHILO
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Sep 10, 3:40 AM CDT, 4 hours 2 minutes earlier.
Area forecast discussion, Sep 10, 3:40 AM CDT, 4 hours 2 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 340 AM CDT MON SEP 10 2001 SHORT TERM...HARD TO SAY WHERE THE WEAK COLD FRONT IS THIS MORNING BUT BELIEVE THE OUTFLOW BOUNDARY FROM YESTERDAYS CONVECTION IS WELL DEPICTED ON MSAS SURFACE ANALYSIS. MORE THAN LIKELY A DIFFUSE FRONTAL BOUNDARY LIES OVER SOUTH TEXAS SOMEWHERE BETWEEN THE 60S AND 70S RANGE OF DEWPOINTS. NONE THE LESS...RADAR INDICATES A CONVERGENCE BOUNDARY BETWEEN BRO AND CRP WITH SCATTERED CONVECTION FROM KENEDY COUNTY TO THE COASTAL BEND EXTENDING OFFSHORE THE TX COAST. WESTERLY MOTION INDICATIVE OF EASTERLY LOW LEVEL FLOW WHICH CONTINUES TO PUSH STRATOFORM PRECIP ASSOC W DECAYING MCS OVER NORTHEAST MEXICO WESTWARD TOWARDS THE SIERRA MADRE ORIENTAL MOUNTAIN RANGE. BELIEVE THE EASTERLY 700MB WIND FLOW AND PRECIPITABLE WATER VALUES NEAR TWO INCHES...WARRANTS CONTINUANCE OF FLASH FLOOD WATCH TODAY AS CONVECTION MOVES INTO COASTAL SECTIONS WHERE HEAVY RAIN AMOUNTS FELL OVER WESTERN PORTIONS OF KENEDY COUNTY EXTENDING INTO NORTHWEST PORTIONS OF CAMERON COUNTY. ALSO...MODELS CONTINUE TO INDICATE SIGNIFICANT 700MB OMEGA FIELD OVER NORTHEAST MEXICO WHERE OROGRAPHIC CONVECTION WITH UPSLOPE WINDS COULD INITIATE ANOTHER MCS ESPECIALLY WITH ENHANCEMENT OF AN UPPER LEVEL SHORT WAVE TROUGH OVER WESTERN MEXICO. HOWEVER...CURRENT CONVECTION OVER WESTERN PORTIONS OF THE CWA IS PROVIDING A STABLE ATMOSPHERE...AND DESTABILIZATION WILL BE LIMITED BY CLOUD COVER TODAY. NOT LIKELY TO SEE CONVECTION WEST TILL AFTERNOON WITH DIURNAL HEATING. DRIER AIR BEGINS TO FILTER IN FROM THE NORTHEAST TUESDAY NIGHT WITH 700 MB WINDS BACKING TO THE NORTH. WILL TREND POPS DOWN AND REMAIN BELOW GUIDANCE FOR POPS AND ABOVE FOR TEMPS. EXTENDED...1000-500MB RH CONTINUES TO DECREASE WEDNESDAY WITH 500 MB RIDGE OVER TX SHIFTING SLIGHTLY WESTWARD THURSDAY. THIS RIDGE TO KEEP A HOLD ON TX THROUGH SUNDAY PER LATEST MRF. NO CHANGES FROM PREVIOUS PACKAGE EXPECTED. MARINE...SEAS 5 FEET OFFSHORE WITH NE WIND AT 17 KNOTS. THIS SURGE IN WIND SPEED LIKELY ASSOCIATED WITH CONVECTION OFFSHORE. NO CHANGES EXPECTED TO CURRENT CWF. THANKS TO KCRP FOR COORD CALL. PRELIMINARY NUMBERS: BRO TB 088/075 092/075 093 50/40/30/20/10 HRL TB 088/074 093/074 094 50/40/30/20/10 MFE TB 088/075 094/075 096 50/40/30/20/10 RGC TB 086/074 095/074 098 50/40/30/20/10 SPI TB 089/079 089/079 089 50/40/30/20/10 SYNOPTIC-PUBLIC...CASTILLO (61) / AVIATION-MARINE-MESO...PHILO (54) INTERNET ADDRESS...WWW.SRH.NOAA.GOV/BRO .BRO...FFA FOR TXZ248>257 TODAY.
In the hours before
Special weather statement, Sep 10, 5:20 AM CDT, 2 hours 22 minutes before
TXZ248>257-102000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 520 AM CDT MON SEP 10 2001 ...HEAVY RAINFALL AND FLOOD POTENTIAL EXISTS OVER THE VALLEY TODAY... A COLD FRONT HAS STALLED JUST SOUTH OF THE RIO GRANDE VALLEY NOW. THIS FRONT GENERATED NUMEROUS SHOWERS AND THUNDERSTORMS OVER THE RIO GRANDE VALLEY AND ADJACENT MEXICO SUNDAY AND SUNDAY NIGHT. RAINFALL TOTALS OF 2 TO 5 INCHES WERE COMMON IN THE VALLEY...WITH ISOLATED AMOUNTS OF 7 INCHES AND HIGHER IN ADJACENT MEXICO AND NORTHWESTERN WILLACY COUNTY. FIVE INCH RAINFALL TOTALS FELL DIRECTLY OVER FALCON RESERVOIR. A FLOOD WATCH IS IN EFFECT FOR ALL OF THE RIO GRANDE VALLEY TODAY...AS SCATTERED TO NUMEROUS THUNDERSTORMS WITH HEAVY RAINFALL ARE IN THE FORECAST. FARMERS AND RESIDENTS IN WESTERN ZAPATA COUNTY SHOULD BE AWARE THAT THERE IS THE POSSIBILITY FOR SOME FLOODING OF THE RIO GRANDE...AS FLOOD WARNINGS ARE NOW IN EFFECT FOR THE RIO GRANDE NEAR LAREDO. THESE FLOOD WATERS WILL MOVE DOWN RIVER TOWARD FALCON RESERVOIR...AND PRIOR TO ARRIVAL IN FALCON RESERVOIR...AREAS IN EXTREME WESTERN ZAPATA COUNTY CAN EXPECT MODERATE LOWLAND FLOODING...ESPECIALLY NEAR SAN YGNACIO AND AREAS IN WESTERN ZAPATA COUNTY PRONE TO FLOODING OF THE RIO GRANDE. PLEASE DRIVE WITH EXTRA CAUTION DURING THE NEXT FEW DAYS. NORMALLY HARMLESS ARROYOS AND DRAINAGE DITCHES CAN BECOME VERY DANGEROUS DURING FLOODING RAINS...AND CHILDREN SHOULD BE MADE AWARE OF PLAYING IN OR NEAR THESE HAZARDS. RESIDENTS OF DEEP SOUTH TEXAS SHOULD STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION SERVICE PROVIDER FOR ADDITIONAL STATEMENTS AND FORECASTS CONCERNING THIS POTENTIAL HEAVY RAIN SITUATION. METEOROLOGISTS PHILO AND CASTILLO PHILO/CASTILLO
Special weather statement, Sep 10, 7:24 AM CDT, 18 minutes before
TXZ248>257-101330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 724 AM CDT MON SEP 10 2001 ...STRONG THUNDERSTORMS APPROACHING BROWNSVILLE... NATIONAL WEATHER SERVICE RADAR SHOWED STRONG THUNDERSTORMS APPROACHING BROWNSVILLE. THESE THUNDERSTORMS WILL BE MOVING ACROSS THE CITY AND SURROUNDING AREAS DURING THE NEXT HOUR. EXPECT STRONG GUSTY WINDS AND SOME SMALL HAIL WITH THESE THUNDERSTORMS...BUT HEAVY RAINFALL WILL CONTINUE TO BE THE MAIN WEATHER CONCERN. A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF THE RIO GRANDE VALLEY TODAY. DRIVE WITH CARE ON YOUR MONDAY MORNING COMMUTE...AND ALLOW EXTRA TIME. RESIDENTS OF DEEP SOUTH TEXAS SHOULD STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION SERVICE PROVIDER FOR ADDITIONAL STATEMENTS AND FORECASTS CONCERNING THIS POTENTIAL HEAVY RAIN SITUATION. PHILO PHILO
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 9:33 PM CDT | Flash Flood Warning | BRO | Cameron, Hidalgo, Willacy | 3 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm 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; radar from the NEXRAD Level II archive.