Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 142, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 2, 1998, 4:01 PM CDT for Cherokee County, Wagoner County, Oklahoma. It was in force for 44 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 2, 1998, 4:01 PM CDT (21:01 UTC)
- Expired
- May 2, 1998, 4:45 PM CDT
- In force
- 44 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Cherokee County, OK, Wagoner County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 2, 4:10 PM CDT | Hail 1 | Okay, OK | |
| May 2, 4:45 PM CDT | Hail 0.88 | Cookson, OK |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 9.0 hours before the alert went out and 169 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
- 98 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 1336 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 022101 RRA SVRTUL OKC021-145-022145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 401 PM CDT SAT MAY 2 1998 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN CHEROKEE COUNTY - EAST CENTRAL OKLAHOMA WAGONER COUNTY - NORTHEASTERN OKLAHOMA * UNTIL 445 PM CDT * AT 400 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM NEAR OKAY...MOVING EAST AT 40 MPH. * SOME LOCATIONS AFFECTED INCLUDE... OKAY HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. WHEN THUNDERSTORMS APPROACH...TAKE COVER INSIDE A STURDY BUILDING. STAY AWAY FROM WINDOWS. TO PROTECT YOURSELF FROM LIGHTNING STAY OFF THE PHONE AND DON'T USE HAND HELD ELECTRICAL APPLIANCES. MOTORISTS SHOULD NEVER DRIVE INTO AREAS WHERE WATER COVERS T HE ROAD.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 2, 3:20 PM CDT, 41 minutes earlier.
Area forecast discussion, May 2, 3:20 PM CDT, 41 minutes before
FPUS3 KTUL 022021 AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 320 PM CDT SAT MAY 2 1998 LOOKS LIKE A FEW HRS OF ACTIVE WX THRU EARLY THIS EVENING...THEN WX SHLD BE RATHER QUIET TILL NXT SYSTM APPRCHED MID-WEEK. PREFNTL TROF HAS PUSHED THRU THE TUL AREA THIS AFTN AND STRETCHES FROM NEAR JAY IN DELAWARE COUNTY TO NEAR OKEMAH IN OKFUSKEE COUNTY AT 1930Z. MAIN CDFNT LAGGING A LTL BHND. AHD OF THE TROF TEMPS HAVE WARMED TO ARND 80 THIS AFTN WITH DWEPTS MAINLY IN THE U50S...EVEN A FEW L60S ALNG THE ARKANSAS RVR VALLEY IN E-CNTL OK. HAVE HAD HI-BASED TSRA/SHRA MOVING ACRS THE AREA THRU THE DAY...BUT STRONGER STORMS NOW EVIDENT ON KINX OVR SRN MO CLOSER TO UPR SUPPORT AS S/WV MOVES SEWRD FRM IA INTO NRN MO. XPCT TO SEE ADNTL STORMS FIRE OVR THE NXT HR OR TWO ON DOWN INTO ERN OK ALNG AND AHD OF THE SFC BNDRY...THEN MOVE ON OFF TO THE EAST OF THE AREA BY EARLY THIS EVENING. ADDITIONAL STORMS XPCTD TO DVLP TO THE SOUTH OF FA WITH SFC LO LOCATED NEAR ABI AND WRMFNT EXTENDING EWRD ACROSS NE TX. S/WV WILL CONT TO MOVE DOWN ACROSS MO DURING THE NGT...AND THEN TO THE EAST ON SUN. AREA WILL RMN IN GENRL NW FLOW THEN FOR THE NXT FEW DAYS WITH SFC HI PRES BUILDING OVR THE AREA. WILL HANG ON TO A FEW CLDS INTO SUNDAY OVR THE NW AR ZONES AND FAR NE OK ZONES...CLOSEST TO UPR SYSTM. OTHRWISE PLENTY OF SUNSHINE NXT FEW DAYS WITH TEMPS NEAR OR A LTL BELOW NORM. NXT SYSTM TO AFFECT AREA ARND TUE/WED. FCSTID = 4 TUL 50 74 51 78 / 10 0 0 0 FSM 50 73 48 78 / 20 0 0 0 MLC 51 76 50 79 / 10 0 0 0 BVO 47 74 48 78 / 10 0 0 0 FYV 45 71 44 75 / 20 0 0 0 IDB 51 77 49 80 / 40 0 0 0 BYV 44 70 44 74 / 20 0 0 0 MIO 46 72 47 77 / 20 0 0 0 MKO 50 74 50 78 / 10 0 0 0 F10 50 74 50 78 / 10 0 0 0 HHW 51 78 49 80 / 40 0 0 0 .TUL... OK...NONE. AR...NONE.
In the hours before
Special weather statement, May 2, 1:00 PM CDT, 3 hours 1 minute before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-031200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT SAT MAY 2 1998 A FEW SEVERE THUNDERST
Special weather statement, May 2, 1:00 PM CDT, 3 hours 1 minute before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-031200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT SAT MAY 2 1998 A FEW SEVERE THUNDERST
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 3:58 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee, Okmulgee | 47 min |
| May 2, 4:15 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 45 min |
| May 2, 4:27 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 63 min |
| May 2, 4:41 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Sequoyah | 64 min |
| May 2, 4:52 PM CDT | Severe Thunderstorm Warning | TSA | Haskell | 38 min |
| May 2, 5:23 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 52 min |
| May 2, 5:44 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 46 min |
| May 2, 6:03 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 42 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1998Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.