Alert archive / Texas / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 45, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Mar 12, 1999, 9:45 PM CST for Burleson County, Texas. It was in force for 30 min. 1 report 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
- Mar 12, 1999, 9:45 PM CST (03:45 UTC)
- Expired
- Mar 12, 1999, 10:15 PM CST
- In force
- 30 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Burleson County, TX
The radar
The Ft Hood radar (KGRK), 77 km from the middle of the area, began a volume at 03:47 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 |
|---|---|---|---|
| Mar 12, 10:00 PM CST | Hail 0.75 | Caldwell, 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
Fort Worth, TX (KFWD), launched 00:00Z, 3.8 hours before the alert went out and 268 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
- 461 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 270 m²/s²
- 0-3 km storm-relative helicity
- 390 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 12, 9:05 PM CST | Severe Thunderstorm Warning | HGX | Burleson | 40 min |
| Mar 12, 9:20 PM CST | Tornado Warning | HGX | Polk | 40 min |
| Mar 12, 9:55 PM CST | Severe Thunderstorm Warning | HGX | Brazos, Burleson, Washington | 50 min |
| Mar 12, 10:40 PM CST | Severe Thunderstorm Warning | HGX | Brazos, Grimes, Washington | 50 min |
| Mar 12, 10:40 PM CST | Severe Thunderstorm Warning | HGX | Madison | 50 min |
| Mar 12, 11:15 PM CST | Severe Thunderstorm Warning | HGX | Houston, Madison, Walker | 45 min |
| Mar 12, 11:45 PM CST | Severe Thunderstorm Warning | HGX | San Jacinto, Trinity | 45 min |
| Mar 13, 12:10 AM CST | Severe Thunderstorm Warning | HGX | Polk, Trinity | 35 min |
| Mar 13, 12:24 AM CST | Severe Thunderstorm Warning | HGX | San Jacinto, Walker | 36 min |
| Mar 13, 1:34 AM CST | Tornado Warning | HGX | Montgomery | 26 min |
| Mar 13, 1:45 AM CST | Severe Thunderstorm Warning | HGX | Harris | 45 min |
| Mar 13, 1:59 AM CST | Tornado Warning | HGX | Harris | 31 min |
| Mar 13, 2:03 AM CST | Severe Thunderstorm Warning | HGX | Liberty | 42 min |
| Mar 13, 2:05 AM CST | Tornado Warning | HGX | Polk | 50 min |
| Mar 13, 2:14 AM CST | Severe Thunderstorm Warning | HGX | Montgomery | 26 min |
| Mar 13, 2:30 AM CST | Severe Thunderstorm Warning | HGX | Harris | 45 min |
| Mar 13, 2:37 AM CST | Flash Flood Warning | HGX | Polk | 3 hr |
| Mar 13, 2:37 AM CST | Tornado Warning | HGX | Liberty | 23 min |
| Mar 13, 2:56 AM CST | Severe Thunderstorm Warning | HGX | Chambers, Liberty | 49 min |
| Mar 13, 3:08 AM CST | Tornado Warning | HGX | Liberty | 37 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1999Every severe thunderstorm warning in 1999
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.