Alert archive / Texas / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 91, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 18, 1996, 8:40 PM CDT for Harris County, Texas. It was in force for 50 min. 4 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
- Jun 18, 1996, 8:40 PM CDT (01:40 UTC)
- Expired
- Jun 18, 1996, 9:30 PM CDT
- In force
- 50 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties
County Harris County, TX
The radar
The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 01:42 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 18, 8:42 PM CDT | Hail 0.75 | Houston, TX | |
| Jun 18, 8:45 PM CDT | Thunderstorm Wind | Houston, TX | |
| Jun 18, 9:05 PM CDT | Thunderstorm Wind | Houston, TX | |
| Jun 18, 9:10 PM CDT | Thunderstorm Wind 55 | Morgans Pt, TX |
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 00:00Z, 1.7 hours before the alert went out and 213 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
- 1037 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1264 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- -12 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 Jun 18, 8:25 PM CDT, 15 minutes earlier.
Area forecast discussion, Jun 18, 8:25 PM CDT, 15 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 825 PM CDT TUE JUN 18 1996 ONGOING CONVECTION KEEPING US A TAD BUSY TONIGHT. WOULD EXPECT THIS ACTIVITY TO DIMINISH SHORTLY WIH THE LOSS OF HEATING. QUICK LOOK AT THE NEWEST STUFF WOULD INDICATE A REPEAT FOR TOMORROW. AS PER COOR- DINATION WITH KEWX...WOULD LIKE AN "ENDING BY MIDNIGHT" WORDING WITH THIS STUFF. OTRWS...NO OTHER CHANGES TO CURRENT PACKAGE. 41
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 7:30 PM CDT | Severe Thunderstorm Warning | HGX | Harris, Montgomery | 45 min |
| Jun 18, 9:45 PM CDT | Severe Thunderstorm Warning | HGX | Waller | 60 min |
| Jun 18, 9:56 PM CDT | Tornado Warning | HGX | Waller | 64 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1996Every severe thunderstorm warning in 1996
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.