Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 16, NWS Tulsa, OK

February 26, 1998LeFlore County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Feb 26, 1998, 5:29 PM CST for LeFlore County, Oklahoma. It was in force for 61 min. 1 report 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: Feb 26, 1998, 5:29 PM CST (23:29 UTC)
Expired: Feb 26, 1998, 6:30 PM CST
In force: 61 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County LeFlore County, OK

What was reported inside it

Time	Report	Where	Remark
Feb 26, 6:00 PM CST	Hail 0.75	Howe, 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, 11.5 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 931 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

192 
WUUS54 KTSA 262330 RRA
SVRTUL
OKC079-270030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
529 PM CST THU FEB 26 1998

THE NATIONAL WEATHER SERVICE IN TULSA OK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEASTERN OKLAHOMA

   ...CENTRAL AND NORTHERN LE FLORE COUNTY

AT 527 PM...NWS RADAR CONTINUED TO INDICATE A CLUSTER OF SEVERE
THUNDERSTORMS EXTENDING FROM NEAR FANSHAWE TO 5 MILES NORTHWEST OF
WISTER. THESE STORMS ARE MOVING TO THE EAST-NORTHEAST AT 15 MPH.
WISTER AND POTEAU ARE IN THE PATHS OF THESE STORMS.

HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 60 MPH CAN BE
EXPECTED IN THE WARNED AREA.

DURING THE STORM MOVE INDOORS AND STAY AWAY FROM WINDOWS. TO PROTECT
YOURSELF FROM LIGHTNING DO NOT USE THE TELEPHONE OR HAND HELD
ELECTRICAL APPLIANCES...UNLESS IN AN EMERGENCY. MOTORISTS SHOULD BE
ALERT FOR WATER ON ROADWAYS AND NEVER DRIVE ONTO A FLOODED 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 Feb 26, 10:20 AM CST, 7 hours 9 minutes earlier.

Area forecast discussion, Feb 26, 10:20 AM CST, 7 hours 9 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE TULSA OK
1020 AM CST THU FEB 26 1998

MESONET INDICATING FRONT ABOUT HALF WAY THROUGH FA ATTM.  LATEST
VISIBLE IMAGERY SHOWING BACK EDGE OF CLOUDS JUST TO THE WEST OF
AREA.  CLEARING HAS BEEN SLOWED BY DEVELOPING SC ON BACK EDGE.
SLOWED DOWN THE CLEARING AND LOWERED POPS IN W ARKANSAS AS MAIN
PCPN SHOULD STAY TO THE EAST OF FA. TEMPS SEEM ON TRACK FOR NOW.

HOWIESON

.TUL...
OK...NONE.
AR...NONE.

In the hours before

Local storm report, Feb 26, 3:35 PM CST, 1 hour 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
335 PM CST THU FEB 26 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0312 PM    SALLISAW                  OK   .88 INCH HAIL
02/26/98   SEQUOYAH

0315 PM    2 E SALLISAW              OK   .88 INCH HAIL
02/26/98   SEQUOYAH                       NICKEL SIZE HAIL JUST EAST
                                          OF SALLISAW ALONG I-40.
                                          REPORT FROM HAMS RELAYED
                                          THROUGH KHBS.

Local storm report, Feb 26, 4:21 PM CST, 1 hour 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
421 PM CST THU FEB 26 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0408 PM    GREENWOOD                 AR   .75 INCH HAIL
02/26/98   SEBASTIAN                      REPORTED BY HAM OPERATOR

Local storm report, Feb 26, 4:24 PM CST, 1 hour 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
424 PM CST THU FEB 26 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0353 PM    FT SMITH                  AR   .75 INCH HAIL
02/26/98   SEBASTIAN                      REPORTED IN TOWN BY POLICE
                                          DEPARTMENT

Local storm report, Feb 26, 4:51 PM CST, 38 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
451 PM CST THU FEB 26 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0415 PM    JOHNSON             p      AR   1.00 INCH HAIL
02/26/98   WASHINGTON                     REPORTED BETWEEN FAYETTEVILLE
                                          AND SPRINGDALE

Local storm report, Feb 26, 4:51 PM CST, 38 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
451 PM CST THU FEB 26 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0415 PM    JOHNSON             p      AR   1.00 INCH HAIL
02/26/98   WASHINGTON                     REPORTED BETWEEN FAYETTEVILLE
                                          AND SPRINGDALE

Local storm report, Feb 26, 5:11 PM CST, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
511 PM CST THU FEB 26 1998

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0503 PM    LE FLORE                  OK   .75 INCH HAIL
02/26/98   LE FLORE

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 25, 6:59 PM CST	Severe Thunderstorm Warning	TSA	Pittsburg	46 min
Feb 25, 7:28 PM CST	Severe Thunderstorm Warning	TSA	Cherokee, Sequoyah	62 min
Feb 25, 7:40 PM CST	Severe Thunderstorm Warning	TSA	Pittsburg	50 min
Feb 25, 8:36 PM CST	Severe Thunderstorm Warning	TSA	Choctaw	39 min
Feb 25, 9:30 PM CST	Severe Thunderstorm Warning	TSA	Pushmataha	45 min
Feb 25, 10:46 PM CST	Severe Thunderstorm Warning	TSA	LeFlore	74 min
Feb 26, 3:15 PM CST	Severe Thunderstorm Warning	TSA	Sequoyah	45 min
Feb 26, 3:46 PM CST	Severe Thunderstorm Warning	TSA	LeFlore	44 min
Feb 26, 4:31 PM CST	Severe Thunderstorm Warning	TSA	Latimer	44 min
Feb 26, 4:36 PM CST	Severe Thunderstorm Warning	TSA	LeFlore	54 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1998 Every 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.