Alert archive / Texas / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 4, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jan 6, 1997, 7:48 PM CST for Brazoria County, Texas. It was in force for 27 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
- Jan 6, 1997, 7:48 PM CST (01:48 UTC)
- Expired
- Jan 6, 1997, 8:15 PM CST
- In force
- 27 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Brazoria County, TX
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 1.8 hours before the alert went out and 240 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 664 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 419 m²/s²
- 0-3 km storm-relative helicity
- 865 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KHOU 070146 RRA SVRHOU TXC039-070215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 748 PM CST MON JAN 6 1997 THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST TEXAS ...EASTERN BRAZORIA COUNTY AND ADJACENT COASTAL WATERS AT 744 PM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 12 MILES NORTH OF FREEPORT MOVING NORTHEAST AT 35 TO 40 MPH. STRONG GUSTY WINDS AND LARGE HAIL ARE POSSIBLE WITH THIS STORM. THIS STORM IS HEADING TOWARD THE COMMUNITY OF LIVERPOOL IN EASTERN BRAZORIA COUNTY. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND VERY HEAVY RAIN. IF CAUGHT OUTSIDE... MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
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 Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 6, 2:15 PM CST, 5 hours 33 minutes earlier.
Area forecast discussion, Jan 6, 2:15 PM CST, 5 hours 33 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 215 PM CST MON JAN 6 1997 AGREE THAT SE TX WX WILL STAY CLOUDY...WINDY AND COLD THROUGH THIS FCST PERIOD. WITH THE VERY IMPRESSIVE LOOKING UPPER LOW TO OUR WEST MOVING TO THE EAST ONLY VERY SLOWY THE NEXT 48H...THE GOOD FEED OF PACIFIC MOISTURE WITH EMBEDDED PULSES TO CONTINUE. STRONG CAA AT THE SFC TO ALSO CONTINUE THE NEXT COUPLE OF DAYS OR SO. ANOTHER SFC FEATURE OF NOTE IS THE DEEPENING LOW OFF THE LOWER TX COAST. THIS SYSTEM IS PROGGED TO MOVE TO THE NE (UP THE COAST) THRU THE PD - AIDING IN THE DEVELOPMENT OF ADDITIONAL SHRA/+SHRA ON WED. GIVEN THE GOOD DYNAMICS AND AVAILABLITY OF A DEEP LAYER OF MOISTURE...MAIN FCST PROBLEM IS THEN THE POSSIBILITY OF ANY WINTER-TYPE PCPN. FOR TONIGHT /EARLY TUE MORNING...PROBABLY NOT AS THE MID LEVELS ARE PROGGED TO REMAIN TOO WARM. NEXT BEST CHC APPEARS TO BE TUE NIGHT/WED MORNING - ESPECIALLY FOR THE NRN ZONES. ATTM...WOULD LIKE TO HOLD OFF ON ANY MENTION OF A WSW FOR SE TX AS THIS IS STILL A BIT OFF AND LET LATER SHIFTS EVALUATE FURTHER WITH ANOTHER MODEL RUN UNDER THEIR BELTS. HOWEVER...AM PLAYING WITH THE IDEA OF AN SPS AS A HEADS UP. WILL TREND TEMPS TOWARD THE SLIGHTLY WARMER FWC NUMBERS. 41 PRELIMINARIES... CLL RX 34/36 30/37 8888 IAH RR 37/40 33/38 8888 GLS RR 40/43 37/44 7888
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 6, 6:38 PM CST | Severe Thunderstorm Warning | HGX | Chambers, Galveston | 67 min |
| Jan 6, 8:03 PM CST | Severe Thunderstorm Warning | HGX | Galveston | 42 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.