Alert archive / Texas / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 39, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Mar 12, 1999, 12:09 PM CST for Coleman County, Texas. It was in force for 66 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
- Mar 12, 1999, 12:09 PM CST (18:09 UTC)
- Expired
- Mar 12, 1999, 1:15 PM CST
- In force
- 66 min
- Issued by
- NWS San Angelo, TX
- Area
- Whole counties
County Coleman County, TX
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 12, 10:45 AM CST | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 12, 10:45 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 6.2 hours before the alert went out and 235 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
- 2 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 511 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 288 m²/s²
- 0-3 km storm-relative helicity
- 416 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 12, 10:37 AM CST, 1 hour 32 minutes earlier.
Area forecast discussion, Mar 12, 10:37 AM CST, 1 hour 32 minutes before
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</html>The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 9:09 PM CST | Severe Thunderstorm Warning | SJT | Haskell | 61 min |
| Mar 12, 5:08 AM CST | Severe Thunderstorm Warning | SJT | Schleicher | 32 min |
| Mar 12, 5:36 AM CST | Severe Thunderstorm Warning | SJT | Sutton | 34 min |
| Mar 12, 6:04 AM CST | Severe Thunderstorm Warning | SJT | Schleicher, Sutton | 46 min |
| Mar 12, 6:10 AM CST | Severe Thunderstorm Warning | SJT | Tom Green | 50 min |
| Mar 12, 6:23 AM CST | Severe Thunderstorm Warning | SJT | Taylor | 62 min |
| Mar 12, 6:28 AM CST | Severe Thunderstorm Warning | SJT | Runnels | 47 min |
| Mar 12, 6:40 AM CST | Severe Thunderstorm Warning | SJT | Jones | 65 min |
| Mar 12, 6:47 AM CST | Tornado Warning | SJT | Sutton | 33 min |
| Mar 12, 7:05 AM CST | Severe Thunderstorm Warning | SJT | Menard, Schleicher | 45 min |
| Mar 12, 7:06 AM CST | Severe Thunderstorm Warning | SJT | Haskell | 64 min |
| Mar 12, 7:23 AM CST | Severe Thunderstorm Warning | SJT | Taylor | 62 min |
| Mar 12, 7:26 AM CST | Severe Thunderstorm Warning | SJT | Throckmorton | 34 min |
| Mar 12, 7:43 AM CST | Tornado Warning | SJT | Menard | 32 min |
| Mar 12, 8:03 AM CST | Severe Thunderstorm Warning | SJT | Callahan, Shackelford | 62 min |
| Mar 12, 8:12 AM CST | Tornado Warning | SJT | Menard | 48 min |
| Mar 12, 8:26 AM CST | Flash Flood Warning | SJT | Menard | 3 hr |
| Mar 12, 8:50 AM CST | Tornado Warning | SJT | Mason, Menard | 80 min |
| Mar 12, 8:54 AM CST | Severe Thunderstorm Warning | SJT | McCulloch | 66 min |
| Mar 12, 9:11 AM CST | Tornado Warning | SJT | Tom Green | 49 min |
| Mar 12, 9:56 AM CST | Severe Thunderstorm Warning | SJT | San Saba | 64 min |
| Mar 12, 10:53 AM CST | Severe Thunderstorm Warning | SJT | San Saba | 32 min |
| Mar 12, 11:29 AM CST | Severe Thunderstorm Warning | SJT | Tom Green | 66 min |
| Mar 12, 1:19 PM CST | Severe Thunderstorm Warning | SJT | Coleman, McCulloch | 61 min |
| Mar 12, 2:06 PM CST | Severe Thunderstorm Warning | SJT | San Saba | 64 min |
| Mar 12, 2:33 PM CST | Tornado Warning | SJT | San Saba | 77 min |
| Mar 12, 3:50 PM CST | Severe Thunderstorm Warning | SJT | San Saba | 35 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; the sounding from the Mesonet's radiosonde archive.