Alert archive / Texas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 193, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Aug 27, 2003, 6:28 PM CDT for Grimes County, Texas. It was in force for 47 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
- Aug 27, 2003, 6:28 PM CDT (23:28 UTC)
- Expired
- Aug 27, 2003, 7:15 PM CDT
- In force
- 47 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Counties, with a storm outline in the text
County Grimes County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 11.5 hours before the alert went out and 283 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
- 1292 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 1087 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 27, 2:15 PM CDT, 4 hours 13 minutes earlier.
Area forecast discussion, Aug 27, 2:15 PM CDT, 4 hours 13 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 215 PM CDT WED AUG 27 2003 SCT SHWRS AND TSTMS ARE DEVELOPING AREAWIDE THIS AFTERNOON AS CONVECTIVE TEMPS HAVE BEEN REACHED. EXPECT SCT ACTIVITY TO CONTINUE TO DEVELOP THROUGH THE EVENING HOURS ACROSS THE INLAND ZONES...WITH ONLY ISOLATED DEVELOPMENT ACROSS THE COASTAL ZONES THIS EVENING BEHIND THE SEA BREEZE BOUNDARY. EXPECT TOMORROW AND FRIDAY TO BE SIMILAR TO TODAY. MODEL GUIDANCE IS INDICATING THAT POPS WILL BE HIGHER IN THE SCT RANGE TOMORROW AS A WEAK MID-LEVEL DISTURBANCE REMAINS OVER THE REGION AND COMBINES WITH A VERY MOIST AND AN UNSTABLE ATMOSPHERE. PW VALUES WILL REMAIN SLIGHTLY ABOVE 2 INCHES FOR THE FORESEEABLE FUTURE. DAYTIME HEATING WILL BE THE MAIN DRIVER FOR THE INLAND ACTIVITY. UNFORTUNATELY THE FORECAST BECOMES A LOT MORE UNCERTAIN LATE THIS WEEKEND AND INTO NEXT WEEK AS THERE IS LITTLE CONSISTENCY BETWEEN THE GLOBAL MODELS AND EVEN BETWEEN THEIR OWN SUCCESSIVE RUNS CONCERNING THE POTENTIAL FOR TROPICAL CYCLONE DEVELOPMENT IN THE NORTHERN CARIBBEAN...GULF...OR BAHAMAS. AT THIS POINT WILL NOT CHANGE THE ONGOING FORECAST WHICH HAS A CHANCE OF SHOWERS AND THUNDERSTORMS EACH DAY. WE WILL JUST HAVE TO WAIT A COUPLE OF DAYS TO SEE IF THE MODELS CAN CONVERGE ON A GIVEN SOLN AND TO SEE IF WE HAVE A PARTICULAR AREA THAT APPEARS TO BE GETTING BETTER ORGANIZED. I DO NOT THINK THAT A COLD FRONTAL PASSAGE IS VERY LIKELY ON SUN/MON GIVEN THE UPPER LEVEL PATTERN. WE MAY BRIEFLY SEE A NORTH WIND BASED ON THE ORIENTATION OF THE SFC PRESSURE PATTERN...BUT ANY BOUNDARY WILL LIKELY BECOME DIFFUSE NORTH OF OUR AREA OR ACROSS THE EXTREME NORTHERN PORTIONS OF THE AREA. 33/40 .HGX...NONE. PRELIMS... CLL BB 075/094 075/094 075 353 IAH BB 076/093 076/093 076 353 GLS BB 081/090 081/090 081 252
Hazardous weather outlook, Aug 27, 7:00 AM CDT, 11 hours 28 minutes before
GMZ330-335-TXZ163-164-176>179-195>200-210>214-226-227-235>238-281200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 700 AM CDT WED AUG 27 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
Nearby
Severe Thunderstorm Warnings in Texas, 2003Every severe thunderstorm 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.