Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 7, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at May 12, 1997, 9:32 PM CDT for Brooks County, Texas. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 12, 1997, 9:32 PM CDT (02:32 UTC)
- Expired
- May 12, 1997, 10:30 PM CDT
- In force
- 58 min
- Issued by
- NWS Brownsville, TX
- Area
- Whole counties
County Brooks County, TX
The radar
The Corpus Christi radar (KCRP), 109 km from the middle of the area, began a volume at 02:33 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, 2.5 hours before the alert went out and 116 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
- 1301 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 842 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBRO 130233 RRA SVRBRO TXC047-130330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BROWNSVILLE TX 932 PM CDT MON MAY 12 1997 THE NATIONAL WEATHER SERVICE IN BROWNSVILLE TX HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHERN TEXAS ...BROOKS COUNTY AT 930 PM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM MOVING INTO WESTERN BROOKS COUNTY. THE STORM IS MOVING EAST NORTHEAST AT 20 MPH AND WILL BE NEAR THE TOWN OF FALFURRIAS SHORTLY AFTER 10 PM. HAIL THE SIZE OF NICKELS IS POSSIBLE WITH THIS STORM ALONG WITH GUSTY WINDS. WHEN THUNDERSTORMS ARE OCCURRING... PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. STAY TUNED TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TV STATION...OR YOUR LOCAL CABLE OUTLET FOR THE LATEST WEATHER INFORMATION. YURA
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 May 12, 8:14 PM CDT, 1 hour 18 minutes earlier.
Area forecast discussion, May 12, 8:14 PM CDT, 1 hour 18 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 810 PM CDT MON MAY 12 1997 THE MAIN QUESTION OF THE NIGHT CONCERNS POTENTIAL SVR WX/HVY RAIN. AGREE WITH PREVIOUS DISC FROM CRP AND EWX THAT ISOLD SVR PULSE TYPE STORMS COULD BE POSSIBLE WITH ONGOING ENVIRONMENT OF HIGH CAPES AND WEAK UPPER LEVEL WND FIELDS. (WILL BE WATCHING VIL LEVELS AS EWX RECEIVED AROUND 1/2 INCH HAIL FROM STMS WITH VILS FROM 50 TO 55.) ALTHOUGH SHARP WAS NOT ABLE TO COMPUTE A CAPE FOR THE 00Z BRO SOUNDING...FEEL THAT CRP/S 00Z SOUNDING IS A MUCH BETTER REPRESENTATION OF OUR ATMS THAN DRT/S 00Z FLIGHT. ALL 00Z FLIGHTS CONTINUE TO SHOW HIGH PWAT VALUES AROUND 1.4 INCHES. THIS FACTOR AND PAST HISTORY OF HVY RAIN PRODUCTION OVER EWX/S CWA SHOULD MOVE HVY RAIN POTENTIAL FURTHER SOUTH WITH THE FRONTAL BOUNDARYS PROGRESS. ACCORDINGLY...WOULD LIKE TO INCLUDE MENTION OF "LOCALLY HEAVY RAINFALL POSSIBLE" IN THE 1ST PD OF TXZ248>255. WILL HANDLE MENTION OF HAIL AND WND GUSTS IN NOW/SPS'S. IN THE CWF...HAVE JUST RECEIVED A MAREP VIA PHONE THAT SWELLS ARE <3 FT ABOUT 2 MILES EAST OF PORT ISABEL. ALSO...BUOY002 SHOWS SWELLS RANGING FROM 3 TO 4 FT WITH A SLOW BUT STEADY DOWNWARD TREND. ^ ALTHOUGH WNDS BEHIND THE PASSIGN FRONT MAY INCREASE THE SWELLS TEMPORARILY...WOULD LIKE TO ADJUST WORDING OF CWF TO "SEAS 2 FEET NEARSHORE TO 4 FT OFFSHORE". OTHERWISE...REST OF ONGOING FORECAST LOOKS GOOD WITH NO CHANGES NEEDED. 60
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 8:23 PM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg | 62 min |
| May 12, 9:45 PM CDT | Severe Thunderstorm Warning | BRO | Starr | 65 min |
| May 12, 10:51 PM CDT | Severe Thunderstorm Warning | BRO | Starr | 59 min |
| May 12, 11:51 PM CDT | Severe Thunderstorm Warning | BRO | Hidalgo | 49 min |
| May 13, 12:04 AM CDT | Severe Thunderstorm Warning | BRO | Jim Hogg | 61 min |
| May 13, 12:05 AM CDT | Severe Thunderstorm Warning | BRO | Hidalgo | 35 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.