Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 43, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at Jun 19, 1997, 7:38 PM CDT for Jim Hogg County, Starr County, Zapata County, Texas. It was in force for 67 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 19, 1997, 7:38 PM CDT (00:38 UTC)
- Expired
- Jun 19, 1997, 8:45 PM CDT
- In force
- 67 min
- Issued by
- NWS Brownsville, TX
- Area
- Whole counties
Counties Jim Hogg County, TX, Starr County, TX, Zapata County, TX
The radar
The Corpus Christi radar (KCRP), 168 km from the middle of the area, began a volume at 00:41 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 19, 7:45 PM CDT | Thunderstorm Wind | El Sauz, TX | Large limbs down |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 0.6 hours before the alert went out and 179 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
- 3855 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 823 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 6.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBRO 200040 RRA SVRBRO TXC247-427-505-200145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BROWNSVILLE TX 738 PM CDT THU JUN 19 1997 THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 845 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH TEXAS ...JIM-HOGG COUNTY...STARR COUNTY...ZAPATA COUNTY AT 735 PM CDT...BROWNSVILLE DOPPLER RADAR SHOW AN AREA OF SEVERE THUNDERSTORMS FORMING OVER STARR...JIM HOGG AND ZAPATA COUNTIES. THESE STORMS ARE DRIFTING NORTH AT AROUND 5 MPH AND WILL PRODUCE LARGE HAIL...DAMAGING THUNDERSTORM WINDS AND TORRENTIAL RAINS OVER WESTERN STARR...ZAPATA AND WESTERN JIM HOGG COUNTIES. SOME CITIES AND TOWNS AFFECTED BY THESE THUNDERSTORMS WILL BE ZAPATA...RANDADO AND ROMA THROUGH 845 PM. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... 0AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. SPEECE
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 Jun 19, 2:33 PM CDT, 5 hours 5 minutes earlier.
Area forecast discussion, Jun 19, 2:33 PM CDT, 5 hours 5 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 230 PM CDT THU JUN 19 1997 CURRENT KBRO REFLECTIVITY INDICATES SOME ISOLD TO SCT CONV FIRING IN THE VERY UNSTABLE ATMS IN PLACE OVER THE FORECAST AREA AND THE MIDDLE AND UPPER TX COASTLINE. (12Z SOUNDING FROM BRO SHOWED AN LI OF -11...A CAPE OF 5212...NO CAP...AND A PWAT OF 2.15 IN). MODEL GUIDANCE HAS DECENT VORTICITY AND WEAK TROFFING LINGERING OVER MUCH OF THE TX COAST...SO ENOUGH LOW AND MID LEVEL LIFT WILL BE PRESENT TO JUSTIFY AT LEAST 20% POPS THROUGH ALL 4 PDS. A DEVELOPING SURFACE LOW OVER THE CENTRAL PLAINS WILL BEGIN TO TIGHTEN THE SURFACE PRESSURE GRADIENT OVER MUCH OF TX SO HAVE INCREASE SURFACE WNDS ACCORDINGLY. FOR TEMPS...SEE LITTLE REASONING TO DEVIATE MUCH FROM THE CURRENT TEMP TRENDS AS MOS AND FAN GUIDANCE IN GOOD AGREEMENT. FOR TXZ248>255... .TONIGHT...PARTLY CLOUDY AND BREEZY WITH A 20 PERCENT CHANCE OF SHOWERS OR THUNDERSTORMS. SOUTHEAST WIND AROUND 15 MPH. .FRIDAY...MOSTLY SUNNY AND WINDY WITH A 20 PERCENT CHANCE OF MAINLY AFTERNOON SHOWERS OR THUNDERSTORMS. GUSTY SOUTH TO SOUTHEAST WINDS INCREASING TO 15 TO 25 MPH BY THE AFTERNOON. CAUTION IS ADVISED ON AREA LAKES. .FRIDAY NIGHT AND SATURDAY...PARTLY CLOUDY AND WINDY WITH A 20 PERCENT CHANCE OF MAINLY AFTERNOON AND EVENING SHOWERS OR THUNDERSTORMS. WOULD ALSO LIKE TO BEEF UP THE WND WORDING OF THE CWF AS THE OFFSHORE BOUNDARY LAYER WND PROGS CRANK UP TO 20 TO 25 KTS BY FRIDAY. SO FOR 1ST PD...SE WND 15 KT...LOCALLY HIGHER GUSTS NEAR SHORE AND OVER INLAND WATERWAYS AND BAYS. SEAS 5 FT. WIDELY SCT RW/TRW. FOR THE 2ND AND 3RD PDS...S-SE WNDS 15 TO 25 KTS. SEAS 6 FT. WIDELY SCT RW/TRW. SMALL CRAFT SHOULD EXERCISE CAUTION. IN THE EXTENDED PD...MODELS POINT TOWARDS A CONTINUATION OF WEAK TROFFING OVER THE WESTERN GULF BETWEEN THE CORRESPONDING EAST AND WEST COAST RIDGES. SO THIS WILL MAINTAIN THE STATUS QUO MORE OR LESS FOR THE TX COAST. THE ONLY ALTERATION WOULD BE TO INCLUDE A MENTION OF BREEZY CONDITIONS AS MSL PROGS SHOW A PRETTY TIGHT SURFACE PRESSURE GRADIENT PERSISTING. SO ACCORDINGLY..."MOSTLY SUNNY DAYS...PARTLY CLOUDY NIGHTS WITH A SLIGHT CHANCE OF MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS. BREEZY. LOWS IN THE MIDDLE TO UPPER 70S. HIGHS IN THE UPPER 80S COAST TO NEAR 102 FAR WEST." BRO UN 079/094 078/094 079 20/20/20/20 MFE UN 079/097 078/097 078 20/20/20/20 RGC UN 078/102 077/102 077 2\0/20/20/20 SPI UN 080/088 080/088 079 20/20/20/20 60
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 7:24 PM CDT | Flash Flood Warning | BRO | Brooks | 5 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.