Severe Thunderstorm Warning 221, NWS Norman, OK

OKZALL-161200-

OKLAHOMA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
100 PM CDT TUE MAY 15 1990

...REFER TO TORNADO WATCH NUMBER 236 VALID UNTIL 4 PM FOR PORTIONS
   OF NORTHCENTRAL AND NORTHEAST OKLAHOMA...

OTHERWISE THERE IS A HIGH RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON
AND TONIGHT ACROSS ALL BUT PANHANDLE AND EXTREME SOUTHEAST SECTIONS OF
OKLAHOMA. A SLIGHT RISK OF SEVERE THUNDERSTORMS COVERS EXTREME
SOUTHEAST OKLAHOMA TONIGHT. THE HIGH RISK AREA IS LOCATED EAST OF A
LINE FROM ARNETT TO THE KANSAS LINE NORTH OF BUFFALO...AND NORTHWEST
OF A LINE FROM WAURIKA...TO PAULS VALLEY...TO POTEAU.

THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION WITH THE POSSIBILTY
OF TORNADOES...VERY LARGE HAIL...AND DAMAGING STRAIGHT-LINE WINDS.

BY EARLY AFTERNOON LOW PRESSURE WAS CENTERED IN CENTRAL KANSAS WITH
A DRYLINE EXTENDING SOUTHWESTWARD ACROSS THE EASTERN TEXAS PANHANDLE.
ACROSS OKLAHOMA VERY MOIST AND UNSTABLE AIR WAS FLOWING NORTHWARD.
WIDELY SCATTERED SHOWERS AND THUNDERSTORMS WERE OCCURRING ACROSS
PORTIONS OF SOUTHCENTRAL AND NORTHCENTRAL OKLAHOMA. ALTHOUGH ISOLATED
SEVERE STORMS WILL BE POSSIBLE ACROSS NORTHEAST OKLAHOMA THIS
AFTERNOON...THE MAIN FOCUS FOR SEVERE WEATHER WILL BE FURTHER WEST.

BY MID AFTERNOON THE DRYLINE IS EXPECTED TO PUSH INTO NORTHWEST
OKLAHOMA WHERE THE AIRMASS WILL HAVE BECOME EXTREMELY UNSTABLE. RAPID
DEVELOPMENT OF SEVERE THUNDERSTORMS IS EXPECTED BY LATE AFTERNOON
ACROSS WESTERN OKLAHOMA WITH STORMS MOVING EASTWARD DURING THE EVENING.
LATEST DATA INDICATES THAT A FEW SUPERCELL THUNDERSTORMS MAY DEVELOP
WITH TORNADOES AND VERY LARGE HAIL THE PRIMARY SEVERE WEATHER THREATS.

INITIAL THUNDERSTORM DEVELOPMENT IS EXPECTED BETWEEN 4 AND 5 PM NEAR
A FREEDOM...CHEYENNE...HOLLIS LINE.

NATIONAL WEATHER SERVICE METEOROLOGISTS WILL MONITOR THE DEVELOPING
SEVERE WEATHER SITUATION THROUGHOUT THE AFTERNOON.

CIVIL DEFENSE AND SPOTTER GROUPS ACROSS OKLAHOMA SHOULD PREPAR0E FOR
ACTIVATION THIS AFTERNOON. RESIDENTS ARE URGED TO LISTEN FOR LATER
STATEMENTS AND SEVERE WEATHER WATCHES AND WARNINGS FROM THE NATIONAL
WEATHER SERVICE.

LOCAL STORM REPORT...DELAYED REPORTS FROM EVENING OF MAY 14
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
140 PM CDT TUE MAY 15 1990

TIME(CDT)     COUNTY           EVENT
840 PM         WOODWARD         HALF 5DOLLAR SIZE HAIL JUST EAST OF QUINLAN
845 PM         MAJOR            QUARTER SIZE HAIL 5 NORTH OF BOUSE JUNCTION

TXZ019-020-152230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
430 PM CDT TUE MAY 15 1990

AT 428 PM CDT RADAR INDICATED A VERY STRONG THUNDRSTORM JUST SOUTH
OF THE KNOX COUNTY LINE MOVING TO THE NORTHEAST AT 25 MPH.

THIS STORM IS TRACKING TOWARD THE COMMUNITY OF MUNDAY. SMALL HAIL
IS LIKELY WITH THIS STORM ALONG WITH VERY HEAVY RAINS. STRONG GUSTY
WINDS AND DANGEROUS LIGHTNING ARE ALSO A POSSIBILITY.

ADDITIONAL STATEMENTS WILL BE ISSUED DURING THE AFTERNOON.