Tornado Warning 17, NWS Norman, OK

TXZ019-020-132100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
105 PM CDT FRI MAR 13 1990

...COLD FRONT MOVING TOWARDS WICHITA FALLS...

BY THE START OF THE AFTERNOON HOURS..A COLD FRONT HAD MOVED TO SOUTH
OF GAGE OKLAHOMA AND AMARILLO TEXAS. MOVEMENT WAS TOWARDS THE SOUTH
AND SOUTHEAST AT NEAR 30 MPH.

THIS COLD FRONT/WIND SHIFT LINE SHOULD APPROACH/PASS THE WICHITA FALLS
AREA AROUND SUNSET. NO PRECIPITATION WAS BEING DETECTED BY NATIONAL
WEATHER SERVICE RADARS IN NORTHWEST OKLAHOMA AND NORTHWEST TEXAS.

HOWEVER...AS THIS CHANCE OF AIRMASS MOVES CLOSER TO THE LOCAL AREA...
THUNDERSTORMS WERE STILL FORECAST TO DEVELOP. THE CURRECT OVERCAST
SKIES HAS INHIBITED THE EXPECTED AFTERNOON WARM-UP INTO THE MID 70S
RANGE AND HELD SURFACE WINDS BELOW LAKE WIND ADVISORY CRITERIA.

OKZALL-141200-
OKLAHOMA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
100 PM CDT FRI APR 13 1990

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
   TONIGHT OVER ALL BUT THE PANHANDLE AND EXTREME NORTHWEST OKLAHOMA.
   THIS AREA IS SOUTHEAST OF A LINE FROM ALVA TO REYDON.

A COLD FRONT MOVED INTO EXTREME NORTHWEST OKLAHOMA THIS MORNING AND AT
MIDDAY WAS ALONG A LINE FROM FREEDOM TO WOODWARD TO ARNETT. GUSTY
SOUTHERLY WINDS AHEAD OF THE FRONT HAVE CONTINUED TO BRING INCREASING
MOISTURE TO THE AREA AND WILL AID IN THE DEVELOPMENT OF THUNDERSTORM
ACTIVITY LATER THIS AFTERNOON AND TONIGHT AS THE FRONT MOVES
SOUTHEASTWARD ACROSS THE STATE. A DRY LINE DEVLOPING OVER WEST TEXAS IS
EXPECTED TO MOVE EASTWARD AND REACH WESTERN OKLAHOMA BY LATE THIS
AFTERNOON. THE INTERSECTION OF THE DRY LINE WITH THE COLD FRONT IS
EXPECTED TO OCCUR FROM WEST-CENTRAL TO NORTH-CENTRAL OKLAHOMA DURING
MAXIMUM HEATING TIME THIS AFTERNOON INCREASING THE POTENTIAL FOR
SEVERE THUNDERSTORMS IN THAT AREA.
AN UPPER LEVEL SYSTEM MOVING EAST-SOUTHEASTWARD ACROSS THE CENTRAL
PLAINS HAS ALREADY TRIGGERED THUNDERSTORMS ALONG THE COLD FRONT IN
EASTERN AND SOUTHERN KANSAS. THUNDERSTORMS ARE EXPECTED TO DEVELOP
SOUTHWESTWARD FROM KANSAS ALONG THE COLD FRONT INTO PORTIONS OF
NORTHCENTRAL AND NORTHWEST OKLAHOMA EARLY THIS AFTERNOON. ADDITIONAL
THUNDERSTORM DEVELOPEMNT IS EXPECTED LATER THIS AFTERNOON ALONG THE
THE COLD FRONT AND APPROACHING DRY LINE IN WESTCENTRAL AND SOUTHWEST
OKLAHOMA. THIS ACTIVITY WILL THEN SPREAD EASTWARD ACROSS THE REMAINDER
OF THE STATE TONIGHT BUT WILL END IN THE WEST AND CENTRAL BEHIND THE
COLD FRONT. CURRENT INDICATIONS ARE THAT THE GREATEST THREAT
OF SEVERE WEATHER WILL BE DURING THE AFTERNOON AND EVENING HOURS OVER
WESTERN AND CENTRAL OKLAHOMA AHEAD OF THE COLD FRONT.

THE COLD FRONT WILL MOVE EAST OF OKLAHOMA SATURDAY MORNING WITH
DRIER AND MORE STABLE AIR SPREADING OVER THE AREA.

CIVL DEFENSE AND STORM SPOTTER GROUPS ACROSS THE AREA SHOULD REMAIN
ALERT AND BE READY FOR ACTIVITATION THIS AFTERNOON AND TONIGHT.

OKZ006-007-008-010-011-012-014-016-017-021-022-132200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
332 PM CDT FRI APR 13 1990

A LINE OF THUNDERSTORMS HAS DEVELOPED RAPIDLY ALONG A COLD FRONT FROM
NORTHEASTERN INTO WEST CENTRAL OKLAHOMA. AT 330 PM THE LINE STRETCHES
FROM NORTH OF PAWHUSKA TO MARSHALL TO THOMAS. THUNDERSTORMS ON THIS
LINE ARE MOVING EAST AT 25 MPH.

FURTHER INTENSIFICATION IS EXPECTED AS THESE STORMS MOVE INTO
NORTHEASTERN AND CENTRAL OKLAHOMA... WITH ADDITIONAL DEVELOPMENT
POSSIBLE SOUTHWESTWARD INTO SOUTHWEST OKLAHOMA. THESE STORMS ARE BEING
MONITORED CLOSELY AND COULD BECOME SEVERE AT ANY TIME. RESIDENTS
THROUGHOUT NORTHEASTERN CENTRAL AND SOUTHWESTERN OKLAHOMA ARE ADVISED
TO REMAIN ALERT FOR CHANGING WEATHER CONDITIONS AND STAY TUNED FOR
LATER STATEMENTS AND POSSIBLE SEVERE WEATHER WATCHES OR WARNINGS. A
SEVERE THUNDERSTORM WATCH WILL BE ISSUED SHORTLY FOR A LARGE PART OF
THE STATE EFFECTIVE UNTIL 9 PM.