Alert archive / Texas / Tornado Watches in 1999
Tornado Watch 651
The Storm Prediction Center issued this tornado watch at Aug 22, 1999, 2:00 PM CDT for 17 counties in Texas. It was in force for 12 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 22, 1999, 2:00 PM CDT (19:00 UTC)
- Expired
- Aug 23, 1999, 2:00 AM CDT
- In force
- 12 hr
- Issued by
- the Storm Prediction Center
Counties Aransas County, TX, Bee County, TX, Calhoun County, TX, Colorado County, TX, DeWitt County, TX, Goliad County, TX, Jackson County, TX, Jim Wells County, TX, Kleberg County, TX, Lavaca County, TX, Live Oak County, TX, Matagorda County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX, Wharton County, TX
The radar
The Corpus Christi radar (KCRP), 58 km from the middle of the area, began a volume at 19:01 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.
Warnings issued inside it
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 5:15 PM CDT | Flash Flood Warning | CRP | Kleberg, Nueces | 4 hr |
| Aug 22, 6:14 PM CDT | Tornado Warning | CRP | Nueces | 31 min |
| Aug 22, 7:19 PM CDT | Tornado Warning | CRP | Jim Wells | 26 min |
| Aug 22, 9:26 PM CDT | Flash Flood Warning | CRP | San Patricio | 4 hr |
| Aug 22, 9:26 PM CDT | Flash Flood Warning | CRP | Kleberg, Nueces | 4 hr |
| Aug 23, 1:30 AM CDT | Flash Flood Warning | CRP | Aransas, San Patricio | 4 hr |
| Aug 23, 1:30 AM CDT | Flash Flood Warning | CRP | Kleberg, Nueces | 4 hr |
| Aug 23, 1:45 AM CDT | Flash Flood Warning | CRP | Bee, Live Oak, Refugio | 4 hr |
| Aug 23, 1:45 AM CDT | Flash Flood Warning | CRP | Jim Wells | 4 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 7.0 hours before the alert went out and 58 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
- 2377 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 705 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 112 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.
Nearby
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; radar from the NEXRAD Level II archive.