Alert archive / Texas / Tornado Watches in 1997
Tornado Watch 805
The Storm Prediction Center issued this tornado watch at Dec 23, 1997, 2:30 PM CST for 32 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 23, 1997, 2:30 PM CST (20:30 UTC)
- Expired
- Dec 23, 1997, 8:00 PM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 32 counties
Austin County, TX, Brazoria County, TX, Calhoun County, TX, Chambers County, TX, Colorado County, TX, DeWitt County, TX, Fayette County, TX, Fort Bend County, TX, Galveston County, TX, Goliad County, TX, Gonzales County, TX, Hardin County, TX, Harris County, TX, Jackson County, TX, Jasper County, TX, Jefferson County, TX, Lavaca County, TX, Liberty County, TX, Matagorda County, TX, Montgomery County, TX, Newton County, TX, Orange County, TX, Polk County, TX, Refugio County, TX, Sabine County, TX, San Jacinto County, TX, San Patricio County, TX, Tyler County, TX, Victoria County, TX, Waller County, TX, Washington County, TX, Wharton County, TX
The radar
The Houston radar (KHGX), 96 km from the middle of the area, began a volume at 20:30 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
19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 2:51 PM CST | Severe Thunderstorm Warning | EWX | DeWitt | 39 min |
| Dec 23, 3:15 PM CST | Severe Thunderstorm Warning | CRP | Goliad, Victoria | 30 min |
| Dec 23, 3:32 PM CST | Severe Thunderstorm Warning | HGX | Burleson, Washington | 58 min |
| Dec 23, 3:32 PM CST | Severe Thunderstorm Warning | HGX | Austin, Colorado | 58 min |
| Dec 23, 3:41 PM CST | Severe Thunderstorm Warning | CRP | Victoria | 34 min |
| Dec 23, 4:07 PM CST | Severe Thunderstorm Warning | HGX | Grimes, Waller | 53 min |
| Dec 23, 4:19 PM CST | Severe Thunderstorm Warning | HGX | Montgomery, Walker | 56 min |
| Dec 23, 4:27 PM CST | Severe Thunderstorm Warning | HGX | Harris | 63 min |
| Dec 23, 4:33 PM CST | Severe Thunderstorm Warning | HGX | Fort Bend, Wharton | 57 min |
| Dec 23, 5:00 PM CST | Severe Thunderstorm Warning | HGX | San Jacinto | 60 min |
| Dec 23, 5:12 PM CST | Severe Thunderstorm Warning | HGX | Brazoria | 63 min |
| Dec 23, 5:16 PM CST | Severe Thunderstorm Warning | HGX | Liberty, Polk | 59 min |
| Dec 23, 5:16 PM CST | Severe Thunderstorm Warning | HGX | Chambers, Galveston, Harris | 59 min |
| Dec 23, 5:16 PM CST | Severe Thunderstorm Warning | HGX | Montgomery | 59 min |
| Dec 23, 5:52 PM CST | Severe Thunderstorm Warning | LCH | Hardin, Jefferson, Tyler | 53 min |
| Dec 23, 5:56 PM CST | Severe Thunderstorm Warning | LCH | Hardin, Jefferson | 64 min |
| Dec 23, 5:56 PM CST | Severe Thunderstorm Warning | LCH | Tyler | 64 min |
| Dec 23, 6:15 PM CST | Severe Thunderstorm Warning | HGX | Chambers, Galveston | 60 min |
| Dec 23, 6:25 PM CST | Severe Thunderstorm Warning | LCH | Jasper, Newton, Orange | 65 min |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 8.5 hours before the alert went out and 257 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
- 1707 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 486 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 135 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 7.8
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.