Alert archive / Texas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 174, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Aug 3, 1998, 5:50 PM CDT for Fort Bend County, Waller County, Texas. It was in force for 60 min. 3 reports 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
- Aug 3, 1998, 5:50 PM CDT (22:50 UTC)
- Expired
- Aug 3, 1998, 6:50 PM CDT
- In force
- 60 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
Counties Fort Bend County, TX, Waller County, TX
The radar
The Houston radar (KHGX), 84 km from the middle of the area, began a volume at 22:50 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 |
|---|---|---|---|
| Aug 3, 6:08 PM CDT | Hail 0.75 | Katy, TX | 3/4" hail and 50 mph winds just south of I-10 & Pine Oak. |
| Aug 3, 6:20 PM CDT | Thunderstorm Wind | Brookshire, TX | Trees and 35 powerlines blown down. |
| Aug 3, 6:38 PM CDT | Thunderstorm Wind 50 | Rosenberg, TX | Large limbs down along HWY 36 at Frito Lay Plant. |
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
Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.8 hours before the alert went out and 261 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
- 72 J/kg
- Mixed-layer CIN
- -189 J/kg
- Mixed-layer LCL
- 1324 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 3, 2:20 PM CDT, 3 hours 30 minutes earlier.
Area forecast discussion, Aug 3, 2:20 PM CDT, 3 hours 30 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 220 PM CDT MON AUG 3 1998 MODELS SHOWING A GRADUAL SLGT INCR IN MOISTURE WITH SLGT H5 HEIGHT FALLS...MOSTLY 4TH PERIOD. THERE WAS ALSO A HINT OF SOME TROFFING AT THE SFC TUE AND WED OVR NRN ZONES. GIVEN THESE FACTORS...WOULD HAVE A CHC POP IN EVERYWHERE FOR DIURNAL CONVECTION BOTH DAYS (AFTN AND EVENING INLAND ZONES...NO TIMING COAST). MOS TEMPS APPEAR TOO LOW DRG THE DAY. THE FIRST CLUE IS THAT IT DOESNT APPEAR TO BE PICKING UP ON TDAS HEAT...ONLY FCSTG 96 AT IAH AT 21Z. I SUSPECT ITLL BE CLOSER TO THE CENTURY MARK. WILL BE HIKING THIS UP A TAD...ESPECIALLY TUE. AGAIN...THE BEST HEIGHT FALLS ARE WED. CLDS MAY PLAY A ROLE...BUT DON'T THINK ENOUGH TO KEEP THINGS AS "COOL" AS MOS WOULD INDICATE TUE. ALL CONTINUES QUIET WITH THE CWF. NO FLAGS. CONT EXCESSIVE HEAT ADVISORY FOR CONSISTENCY SAKE. THINK H.I. VALUES SHD BE IN THE 105 TO 110 RANGE TMRW. FCST... TNGT...FAIR. TUE...PARTLY SUNNY...HOT AND HUMID WITH WIDELY SCT AFTN AND EVENING RW/TRW. TUE NGT...PARTLY CLOUDY. WED...PARTLY CLOUDY...HOT AND HUMID WITH SCATTERED AFTN AND EVENING RW/TRW. PRELIMS... CLL A/B B/B 076/100 0n75/096 02-3 IAH A/B B/B 077/098 076/096 0214 GLS A/B B/B 081/091 081/091 -2-4 46/RDH
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 4:42 PM CDT | Severe Thunderstorm Warning | HGX | Harris, Montgomery | 63 min |
| Aug 3, 5:16 PM CDT | Severe Thunderstorm Warning | HGX | Harris | 59 min |
| Aug 3, 5:42 PM CDT | Severe Thunderstorm Warning | HGX | Liberty | 63 min |
| Aug 3, 5:42 PM CDT | Severe Thunderstorm Warning | HGX | Jackson | 63 min |
| Aug 3, 6:08 PM CDT | Tornado Warning | HGX | Fort Bend, Harris | 62 min |
| Aug 3, 6:25 PM CDT | Severe Thunderstorm Warning | HGX | Austin | 60 min |
| Aug 3, 6:31 PM CDT | Severe Thunderstorm Warning | HGX | Houston, Trinity | 64 min |
| Aug 3, 6:42 PM CDT | Tornado Warning | HGX | Austin, Colorado, Wharton | 63 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1998Every severe thunderstorm warning in 1998
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.