Alert archive / Oklahoma / Tornado Warnings in 1998
Tornado Warning 25, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at May 6, 1998, 8:56 PM CDT for LeFlore County, Oklahoma. It was in force for 34 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
- May 6, 1998, 8:56 PM CDT (01:56 UTC)
- Expired
- May 6, 1998, 9:30 PM CDT
- In force
- 34 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County LeFlore County, OK
The radar
The Western Arkansas radar (KSRX), 53 km from the middle of the area, began a volume at 01:56 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 6, 8:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.9 hours before the alert went out and 237 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
- 1358 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1166 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
393 WFUS54 KTSA 070157 RRA TORTUL OKC079-070230- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TULSA OK 856 PM CDT WED MAY 6 1998 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * TORNADO WARNING FOR... EASTERN LE FLORE COUNTY - SOUTHEASTERN OKLAHOMA * UNTIL 930 PM CDT * AT 853 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM WITH STRONG ROTATION SOUTHEAST SIDE OF POTEAU. A TORNADO COULD FORM AT ANY TIME AS THIS STORM MOVES SOUTHEAST AT ABOUT 20 MPH. * THE FOLLOWING LOCATIONS ARE NEAR THE PATH OF THIS STORM... HARTFORD ARKANSAS LARGE HAIL AND DAMAGING STRAIGHT LINE WINDS WILL ALSO ACCOMPANY THIS STORM. MOVE TO A SAFE PLACE IMMEDIATELY THE SAFEST PLACE IN A TORNADO IS BELOW GROUND. IF A BASEMENT OR STORM CELLAR IS NOT AVAILABLE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. GET UNDER SOMETHING STURDY AND USE BLANKETS AND PILLOWS TO PROTECT YOUR HEAD AND BODY FROM FLYING DEBRIS. AVOID WINDOWS AND LARGE ROOMS. ABANDON MOBILE HOMES AND AUTOMOBILES FOR MORE SUBSTANTIAL SHELTER. AS A LAST RESORT TAKE COVER IN A DITCH.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 7:21 PM CDT | Severe Thunderstorm Warning | TSA | Delaware | 54 min |
| May 6, 7:25 PM CDT | Severe Thunderstorm Warning | TSA | Haskell | 80 min |
| May 6, 7:32 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee | 58 min |
| May 6, 7:46 PM CDT | Tornado Warning | TSA | Adair | 29 min |
| May 6, 8:05 PM CDT | Tornado Warning | TSA | Adair | 25 min |
| May 6, 8:09 PM CDT | Tornado Warning | TSA | Haskell | 36 min |
| May 6, 8:12 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee, Okmulgee | 33 min |
| May 6, 8:15 PM CDT | Tornado Warning | TSA | Sequoyah | 45 min |
| May 6, 8:18 PM CDT | Tornado Warning | TSA | LeFlore | 42 min |
| May 6, 8:30 PM CDT | Tornado Warning | TSA | Pittsburg | 45 min |
| May 6, 8:34 PM CDT | Tornado Warning | TSA | Muskogee | 26 min |
Nearby
Tornado Warnings in Oklahoma, 1998Every tornado warning in 1998Tornadoes 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.