Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 45, NWS Tulsa, OK

March 30, 1998Haskell County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 30, 1998, 7:30 PM CST for Haskell County, Oklahoma. It was in force for 45 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
Mar 30, 1998, 7:30 PM CST (01:30 UTC)
Expired
Mar 30, 1998, 8:15 PM CST
In force
45 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Haskell County, OK

What was reported inside it

TimeReportWhereRemark
Mar 30, 7:30 PM CSTHail 0.75Tamaha, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 30, 7:00 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 1.5 hours before the alert went out and 207 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 1998-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 1998-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -325 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
672 m above ground
0-6 km bulk shear
92 kt
0-1 km storm-relative helicity
-325 m²/s²
0-3 km storm-relative helicity
-26 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.

000 
TTAA00 KTUL 310130 RRA
SVRTUL
OKC061-077-079-127-310215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
730 PM CST MON MAR 30 1998

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHEASTERN OKLAHOMA

   ...EASTERN HASKELL COUNTY
   ...EASTERN LATIMER COUNTY
   ...LE FLORE COUNTY
   ...PUSHMATAHA COUNTY


AT 728 PM...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
EXTENDING FROM COOKSON TO KEOTA TO NASHOBA MOVING NORTHEAST AT 50
MPH.

HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 70 MPH CAN BE
EXPECTED IN THE WARNED AREA.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT FOR
RAPIDLY CHANGING WEATHER CONDITIONS.

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 Mar 30, 7:20 PM CST, 10 minutes earlier.

Area forecast discussion, Mar 30, 7:20 PM CST, 10 minutes before
FPUS3 KTUL 310119
AFDTUL

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
720 PM CST MON MAR 30 1998

UPDATED MAINLY TO REFLECT NEW WATCH INFORMATION AND CURRENT
RADAR TRENDS. MAY NEED TO UPDATE LATER TO BETTER REFLECT CURRENT
WEATHER.

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

ABBAS

In the hours before

Local storm report, Mar 30, 6:48 PM CST, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
648 PM CST MON MAR 30 1998

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

0412 PM    PAWHUSKA                  OK   1.00 INCH HAIL
03/30/98   OSAGE

0614 PM    CANADIAN                  OK   0.75 INCH HAIL
03/30/98   PITTSBURG

0624 PM    EUFAULA                   OK   60 MPH TSTM GUST
03/30/98   MCINTOSH

0615 PM    4 WNW EUFAULA             OK   62 MPH TSTM GUST
03/30/98   MCINTOSH                       MEASURED BY OKLAHOMA
                                          MESONET
Local storm report, Mar 30, 6:48 PM CST, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
648 PM CST MON MAR 30 1998

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

0412 PM    PAWHUSKA                  OK   1.00 INCH HAIL
03/30/98   OSAGE

0614 PM    CANADIAN                  OK   0.75 INCH HAIL
03/30/98   PITTSBURG

0624 PM    EUFAULA                   OK   60 MPH TSTM GUST
03/30/98   MCINTOSH

0615 PM    4 WNW EUFAULA             OK   62 MPH TSTM GUST
03/30/98   MCINTOSH                       MEASURED BY OKLAHOMA
                                          MESONET

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 6:14 PM CSTSevere Thunderstorm WarningTSAMuskogee46 min
Mar 30, 6:23 PM CSTTornado WarningTSAMcIntosh37 min
Mar 30, 6:32 PM CSTSevere Thunderstorm WarningTSAPushmataha43 min
Mar 30, 6:40 PM CSTSevere Thunderstorm WarningTSAHaskell, Latimer50 min
Mar 30, 6:46 PM CSTTornado WarningTSACherokee, Muskogee44 min
Mar 30, 6:51 PM CSTSevere Thunderstorm WarningTSASequoyah39 min
Mar 30, 6:53 PM CSTSevere Thunderstorm WarningTSAPittsburg52 min
Mar 30, 6:54 PM CSTTornado WarningTSASequoyah51 min
Mar 30, 7:26 PM CSTTornado WarningTSAAdair, Cherokee49 min
Mar 30, 7:30 PM CSTSevere Thunderstorm WarningTSALatimer, LeFlore, Pushmataha45 min
Mar 30, 7:33 PM CSTTornado WarningTSASequoyah42 min
Mar 30, 7:38 PM CSTSevere Thunderstorm WarningTSADelaware52 min
Mar 30, 7:58 PM CSTSevere Thunderstorm WarningTSAOttawa32 min
Mar 30, 8:12 PM CSTSevere Thunderstorm WarningTSALeFlore48 min
Mar 30, 8:53 PM CSTSevere Thunderstorm WarningTSALeFlore22 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.