Alert archive / Texas / Tornado Watches in 1998
Tornado Watch 316
The Storm Prediction Center issued this tornado watch at May 9, 1998, 12:45 AM CDT for Hempstead County, Little River County, Miller County, Arkansas; 18 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 9, 1998, 12:45 AM CDT (05:45 UTC)
- Expired
- May 9, 1998, 6:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 21 counties
Hempstead County, AR, Little River County, AR, Miller County, AR, Bowie County, TX, Camp County, TX, Cass County, TX, Franklin County, TX, Gregg County, TX, Harrison County, TX, Henderson County, TX, Hopkins County, TX, Marion County, TX, Morris County, TX, Rains County, TX, Red River County, TX, Rusk County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Van Zandt County, TX, Wood County, TX
The radar
The Shreveport radar (KSHV), 132 km from the middle of the area, began a volume at 05:44 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
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 1:01 AM CDT | Tornado Warning | FWD | Van Zandt | 14 min |
| May 9, 1:14 AM CDT | Severe Thunderstorm Warning | SHV | Smith, Wood | 61 min |
| May 9, 1:24 AM CDT | Tornado Warning | SHV | Wood | 31 min |
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 5.8 hours before the alert went out and 140 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
- 2343 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 201 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.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 12:00 PM CDT | Tornado Watch | SPC | Arkansas, Ashley, Baxter, Benton, Boone, Bradley and 59 more | 6 hr |
| May 9, 1:00 PM CDT | Tornado Watch | SPC | Fulton, Randolph | 6 hr |
| May 9, 2:00 PM CDT | Tornado Watch | SPC | Clay, Craighead, Crittenden, Cross, Greene, Lee and 5 more | 6 hr |
| May 9, 6:00 PM CDT | Tornado Watch | SPC | Arkansas, Ashley, Baxter, Boone, Bradley, Calhoun and 51 more | 5 hr |
| May 8, 8:00 PM CDT | Tornado Watch | SPC | Archer, Baylor, Callahan, Clay, Collin, Cooke and 25 more | 6 hr |
| May 8, 9:15 PM CDT | Tornado Watch | SPC | Bell, Bosque, Brown, Burnet, Coleman, Comanche and 15 more | 5 hr |
| May 8, 10:30 PM CDT | Severe Thunderstorm Watch | SPC | Foard, Hardeman, Wichita, Wilbarger | 5 hr |
Nearby
Tornado Watches in Texas, 1998Tornado Watches in Arkansas, 1998Every tornado watch in 1998
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.