Alert archive / Texas / Tornado Watches in 1998
Tornado Watch 169
The Storm Prediction Center issued this tornado watch at Apr 6, 1998, 7:00 PM CDT for 15 counties in Oklahoma; 38 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 6, 1998, 7:00 PM CDT (00:00 UTC)
- Expired
- Apr 7, 1998, 1:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 53 counties
Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Coal County, OK, Cotton County, OK, Garvin County, OK, Jefferson County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Pontotoc County, OK, Pushmataha County, OK, Stephens County, OK, Bosque County, TX, Brown County, TX, Clay County, TX, Collin County, TX, Comanche County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Eastland County, TX, Ellis County, TX, Erath County, TX, Fannin County, TX, Freestone County, TX, Grayson County, TX, Hamilton County, TX, Hill County, TX, Hood County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Limestone County, TX, McLennan County, TX, Mills County, TX, Montague County, TX, Navarro County, TX, Palo Pinto County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Van Zandt County, TX, Wise County, TX, Young County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 38 km from the middle of the area, began a volume at 00:05 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
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 7:34 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, McClain | 56 min |
| Apr 6, 7:47 PM CDT | Tornado Warning | OUN | Cotton, Stephens | 58 min |
| Apr 6, 8:42 PM CDT | Severe Thunderstorm Warning | OUN | Carter, Garvin, Stephens | 63 min |
| Apr 6, 9:00 PM CDT | Severe Thunderstorm Warning | OUN | Murray | 60 min |
| Apr 6, 9:38 PM CDT | Severe Thunderstorm Warning | OUN | Pontotoc | 67 min |
| Apr 6, 10:12 PM CDT | Severe Thunderstorm Warning | OUN | Coal, Hughes | 63 min |
| Apr 6, 10:57 PM CDT | Severe Thunderstorm Warning | OUN | Atoka | 48 min |
| Apr 6, 11:39 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pushmataha | 36 min |
| Apr 6, 11:44 PM CDT | Tornado Warning | TSA | Pittsburg, Pushmataha | 46 min |
| Apr 7, 12:30 AM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 30 min |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 0.0 hours before the alert went out and 267 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
- 112 J/kg
- Mixed-layer CIN
- -164 J/kg
- Mixed-layer LCL
- 1259 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 216 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 |
|---|---|---|---|---|
| Apr 6, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Blaine, Caddo, Canadian, Cleveland, Custer and 19 more | 7 hr |
| Apr 6, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Atoka, Bryan, Cherokee, Choctaw, Coal and 26 more | 6 hr |
Nearby
Tornado Watches in Texas, 1998Tornado Watches in Oklahoma, 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.