Tornado Warning 5, NWS Norman, OK

STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
929 AM CDT SUN MAY 14 1989

TIME     COUNTY    EVENT
845 AM   WOODS     DIME-SIZED HAIL 4 MILES WEST OF PLAINVIEW
900 AM   MCCLAIN   DIME-SIZED HAIL{ IN PAYNE
920 AM   WOODS     GUSTS TO 70 MPH AND DIME-SIZED HAIL 12 MILES NORTH
                   AND 5 WEST OF CORA AT AN AIRFIELD

STORM REPORT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1056 AM CDT SUN MAY 14 1989

TIME     COUNTY    EVENT
1050 AM  ALFALFA   DIME-SIZED HAIL 3 MILES NORTH OF CHEROKEE

OKLAHOMA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1200 PM CDT MON MAY 15 1989

...REFER TO SEVERE THUNDERSTORM WATCH NUMBER 230 VALID UNTIL 3 PM
FOR MUCH OF OKLAHOMA...

OTHERWISE THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON
AND TONIGHT OVER MUCH OF OKLAHOMA...TO THE WEST OF A BARTLESVILLE TO
PAGE LINE. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TO THE EAST
OF THAT LINE.

SEVERE THUNDERSTORMS HAVE MOVED SOUTHEASTWARD FROM KANSAS INTO PORTIONS
OF NORTHWESTERN AND NORTH CENTRAL OKLAHOMA THIS MORNING. THESE STORMS HAVE
PRODUCED HAIL IN THESE AREAS. A MOIST AND UNSTABLE AIRMASS REMAINS IN
PLACE ACROSS OKLAHOMA TODAY WITH DEWPOINTS IN THE 60S ACROSS THE STATE.
IN THE UPPER LEVELS OF THE ATMOSPHDERE A BROAD TROUGH OF LOW PRESSURE
REMAINS OVER THE WESTERN UNITED STATES. UPPER LEVEL IMPULSES CONTINUE
TO ROTATE NORTHEASTWARD INTO THE CENTRL U.S. FROM THIS SYSTEM.

AT THE SURFACE...A DIFFUSE WARM FRONT IS LOCATED JUST SOUTH OF THE RED
ROVER OVER NORTH TEXAS. AN OUTFLOW BOUNDARY GENERATED BY THE THUNDERSTORMS
OVER NORTHERN OKLAHOMA EXTENDED FROM AROUND GAGE TO NEAR PONCA CITY.

THE BEST THREAT FOR SEVERE THUNDERSTORMS WILL BE IN NORTHERN SECTIONS AS
THE THUNDERSTORMS CURRENTLY MOVING ACROSS NORTHERN OKLAHOMA MOVE INTO AN
AIRMASS FURTHER DESTABILIZED BY AFTERNOON HEATING. IN ADDITION THUNDERSTORMS
ARE ALSO EXPECTED TO DEVELOP THIS AFTERNOON IN THE VICINITY OF THE NORTH TEXAS
WARM F?RONT. THE THUNDERSTORMS ARE EXPECTED TO CONTINUE THROUGH THE NIGHT AS
AN UPPER LEVEL DISTURBANCE OVER ARIZONA  MOVES OVER THE STATE LATER TONIGHT.

OKLAHOMA THUNDERSTORM OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1200 PM CDT MON MAY 15 1989

...REFER TO SEVERE THUNDERSTORM WATCH NUMBER 230 VALID UNTIL 3 PM
FOR MUCH OF OKLAHOMA...

OTHERWISE THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON
AND TONIGHT OVER MUCH OF OKLAHOMA...TO THE WEST OF A BARTLESVILLE TO
PAGE LINE. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TO THE EAST
OF THAT LINE.

SEVERE THUNDERSTORMS HAVE MOVED SOUTHEASTWARD FROM KANSAS INTO PORTIONS
OF NORTHWESTERN AND NORTH CENTRAL OKLAHOMA THIS MORNING. THESE STORMS HAVE
PRODUCED HAIL IN THESE AREAS. A MOIST AND UNSTABLE AIRMASS REMAINS IN
PLACE ACROSS OKLAHOMA TODAY WITH DEWPOINTS IN THE 60S ACROSS THE STATE.
IN THE UPPER LEVELS OF THE ATMOSPHDERE A BROAD TROUGH OF LOW PRESSURE
REMAINS OVER THE WESTERN UNITED STATES. UPPER LEVEL IMPULSES CONTINUE
TO ROTATE NORTHEASTWARD INTO THE CENTRL U.S. FROM THIS SYSTEM.
AT THE SURFACE...A DIFFUSE WARM FRONT IS LOCATED JUST SOUTH OF THE RED
RIVER OVER NORTH TEXAS. AN OUTFLOW BOUNDARY GENERATED BY THE THUNDERSTORMS
OVER NORTHERN OKLAHOMA EXTENDED FROM AROUND GAGE TO NEAR PONCA CITY.

THE BEST THREAT FOR SEVERE THUNDERSTORMS WILL BE IN NORTHERN SECTIONS AS
THE THUNDERSTORMS CURRENTLY MOVING ACROSS NORTHERN OKLAHOMA MOVE INTO AN
AIRMASS FURTHER DESTABILIZED BY AFTERNOON HEATING. IN ADDITION THUNDERSTORMS
ARE ALSO EXPECTED TO DEVELOP THIS AFTERNOON IN THE VICINITY OF THE NORTHJ TEXAS
WARM FRONT. THE THUNDERSTORMS ARE EXPECTED TO CONTINUE THROUGH THE NIGHT AS
AN UPPER LEVEL DISTURBANCE OVER ARIZONA  MOVES OVER THE STATE LATER TONIGHT.