Severe Thunderstorm Warning 57, NWS Tulsa, OK

Issued

Apr 21, 1990, 6:13 PM CDT (23:13 UTC)

Expired

Apr 21, 1990, 7:15 PM CDT

In force

62 min

Issued by

NWS Tulsa, OK

Area

Whole counties

Counties Osage County, OK, Washington County, OK

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

000 
TTAA00 KTUL 212314
SVRTUL
OKC113-147-220015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
613 PM CDT SAT APR 21 1990
 
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES ...
 
IN NORTHEAST OKLAHOMA
 
   ...EASTERN OSAGE COUNTY...SOUTHERN WASHINGTON COUNTY
 
AT 611 PM THE NATIONAL WEATHER SERVICE RADAR IN TULSA INDICATED A
SEVERE THUNDERSTORM 5 MILES NORTHEAST OF BARNSDALL MOVING TO THE EAST
SOUTHEAST AT 10 MPH.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLI^ANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

In the hours before

OKZ007-008-012-212215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
410 PM CDT SAT APR 21 1990

...STRONG THUNDERSTORMS DEVELOPING IN NORTHEAST OKLAHOMA...

SEVERAL STRONG THUNDERSTORMS WITH VERY HEAVY RAIN HAVE DEVELOPED IN
NORTHEAST OKLAHOMA. AT 400 PM THE NATIONAL WEATHER SERVICE RADAR
INDICATED DEVELOPING STRONG THUNDERSTORMS IN EXTREME NORTHEAST OSAGE
COUNTY EAST OF HULAH RESERVOIR...IN CENTRAL OSAGE COUNTY 3 MILES NORTH
OF BARNSDALL...IN WESTERN TULSA COUNTY WEST OF SAND SPRINGS...AND IN
CENTRAL PAWNEE COUNTY MIDWAY BETWEEN PAWNEE AND CLEVELAND. THESE
STORMS HAVE FORMED IN THE MOIST UNSTABLE AIR IN THE VICINITY OF A WEAK
SURFACE TROUGH OF LOW PRESSURE. AT THIS TIME THE STORMS ARE CAPABLE OF
PRODUCING HEAVY RAIN AND BRIEF GUSTY WINDS AS THEY MOVE TO THE
EAST SOUTHEAST AT AROUND 10 MPH.

THE STORMS ARE EXPECTED TO INTENSIFY THIS AFTERNOON WITH A FEW STORMS
REACHING SEVERE LEVELS. THE STORMS THAT BECOME SEVERE WILL BE CAPABLE
OF PRODUCING LARGE HAIL AND WINDS IN EXCESS OF 60 MPH. FLASH FLOODING
WILL ALSO BE A THREAT TO THE AREAS THAT RECEIVE THE RAINFALL FROM THE
STRONGER STORMS BECAUSE OF SLOW STORM MOVEMENT AND SATURATED GROUNDS.
A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF NORTHEAST
OKLAHOMA UNTIL 9 PM.

STAY TUNED TO NOAA WEATHER RADIO OR COMMERCIAL RADIO OR TELEVISION FOR
LATER UPDATES OR POSSIBLE WARNINGS.

Severe Thunderstorm Warnings in Oklahoma, 1990Every severe thunderstorm warning in 1990

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.