Severe Thunderstorm Warning 113, NWS Norman, OK

OKLAHOMA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
300 PM CST THU APR 17 1986

   THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE EASTERN PART
OF OKLAHOMA THIS AFTERNOON AND TONIGHT. THIS AREA IS GENERALLY
SOUTHEAST OF A LINE FROM BARTLESVILLE TO ARDMORE..ALTHOUGH THE GREATEST
THREAT WILL BE SOUTHEAST OF A LINE FROM ARDMORE TO POTEAU. LIGHT SHOWERS
OR THUNDERSHOWERS ALSO ARE POSSIBLE IN THE OKLAHOMA PANHANDLE THIS
AFTERNOON AND THIS EVENING.

   A LOW PRESSURE SYSTEM IS CENTERED OVER SOUTHEASTERN SOUTH DAKOTA
THIS AFTERNOON..AND A COLD FRONT EXTENDS SOUTHWARD FROM THE LOW CENTER
ACROSS CENTRAL KANSAS TO EASTERN NEW MEXICO. A DRYLINE EXTENDS
FROM THE LOW ACROSS EASTERN KANSAS TO SOUTHWESTERN TEXAS. EAST OF THE
DRYLINE..RELATIVELY WARM AND VERY MOIST AIR HAS CONTINUED TO FEED
INTO THE EASTERN THIRD OF OKLAHOMA..WHILE RELATIVELY WARM AND VERY
DRY AIR HAS SPREAD ACROSS THE REMAINDER OF THE STATE.

   THE POSITION OF THE DRYLINE WILL DEFINE THE WEST EDGE OF THE
POTENTIAL FOR SIGNIFICANT THUNDERSTORMS THIS AFTERNOON AND THIS
EVENING. THERE IS LITTLE UPPER LEVEL SUPPORT FOR THUNDERSTORM
DEVELOPMENT OVER EASTERN OKLAHOMA..SO THE LIFTING OF THE MOIST AIR
ALONG THE DRYLINE ALONG WITH AFTERNOON HEATING TO DESTABILIZE
THE ATMOSPHERE WILL BE THE PRIMARY TRIGGERING MECHANISMS FOR THE
THUNDERSTORMS. THE RICHEST LOW LEVEL MOISTURE AND THE STRONGEST
SURFACE HEATING ARE COMING TOGETHER TO AFFECT THE OUTLINED AREA
IN SOUTHEASTERN OKLAHOMA. THE POTENTIAL FOR SEVERE WEATHER IS
DIMINISHED OVER NORTHEASTERN OKLAHOMA BY THE RELATIVELY COOL
SURFACE TEMPERATURES. THE THUNDERSTORMS ARE EXPECTED TO FORM WITHIN
THE NEXT TWO TO THREE HOURS ALONG THE DRYLINE AND TO MOVE
NORTHEASTWARD. THE ACTIVITY WILL DIMINISH AROUND MIDNIGHT.

   STRONG COOLING ALOFT IS DESTABILIZING THE ATMOSPHERE OVER
NORTHWESTERN OKLAHOMA..AND A FEW SHOWERS OR THUNDERSHOWERS
ARE LIKELY TO DEVELOP IN THAT AREA THIS AFTERNOON. THESE WILL BE
NONSEVERE AND WILL DISSIPATE SOON AFTER SUNSET.

   SPOTTER NETWORKS IN SOUTHEASTERN OKLAHOMA SHOULD BE ON STANDBY
FOR POSSIBLE ACTIVATION LATE THIS AFTERNOON AND THIS EVENING.

LOCAL STORM REPORT ...CORRECTION
NATIONAL WEATHER SERVICE WICHITA FALLS TX
0615 AM CST FRI APR 18 1986

TIME     DAY  EVENT                                             COUNTY

608 PM THU  QUARTER SIZE HAIL 7MI SOUTHWEST OF VERNON.          WILBARGER
644 PM THU  PEA TO DIME SIZE HAIL IN OKLAUNION.                 WILBARGER
644 PM THU  WINDSHIELD KNOCKED OUT HAROLD.                      WILBARGER

1212 AM FRI PEA TO QUARTER SIZE HAIL 15 MILES SOUTHWEST CROWELL.  FOARD
           VERY HEAVY RAIN, LIGHT WINDS. MOVEMENT TO NORTHEAST.
1240 AM FRI HAIL LARGER THAN GOLF BALL SIZE. 6 MILES EAST OF    FOARD
           CROWELL.
1242 AM FRI PEA SIZE HAIL. LIGHT RAIN. 2 MILES WEST LOCKETT.   WILBARGER
106  AM FRI DIME SIZE HAIL 2 MILES WEST LOCKETT.               WILBARGER
152  AM FRI PEA SIZE HAIL 12 MILES EAST ELECTRA.               WICHITA
240  AM FRI HEAVY RAIN AT GRAHAM.                              YOUNG
1117 AM    DIME SIZE HAIL AT IlOWA PARK.                          WICHITA
1120 AM    DIME SIZE HAIL JUST SOUTH OF MANKINS.                 ARCHER
1200 PM    DIME SIZE HAIL AT BURKBURNETT.                        WICHITA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
350 PM CST FRI APR 18 1986

...A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES OF NORTH
CENTRAL TEXAS FROM 415 PM CST UNTIL 1000 PM CST...CLAY...MONTAGUE...AND
JACK...

AT 345 PM NO PRECIPITATION WAS OCCURRING IN ANY OF THE ABOVE COUNTIES...
HOWEVER THE WICHITA FALLS RADAR WAS INDICATING VERY STRONG THUNDER
STORMS TO THE NORTH OF THE FORT WORTH METROPLEX.

MOVEMENT OF THESE THUNDERSTORMS WAS TO THE NORTHEAST AT 35 MPH.

REMEMBER...A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
445 PM CST FRI APR 18 1986

...A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES OF NORTH
CENTRAL TEXAS FROM 415 PM CST UNTIL 1000 PM CST...CLAY...MONTAGUE...AND
JACK...

AT 443 PM NO PRECIPITATION WAS OCCURRING IN ANY OF THESE COUNTIES...
HOWEVER THE WICHITA FALLS RADAR WAS INDICATING VERY STRONG THUNDER
STORMS TO THE NORTH OF THE DALLAS-FORT WORTH METROPLEX. OTHER VERY
STRONG THUNDERSTORMS WERE DEVELOPING TO THE SOUTHWEST OF STEPHENVILLE.

MOVEMENT OF THESE THUNDERSTORMS WAS NORTHEAST AT 25 MPH.

REMEMBER...A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA FALLS TX
6 PM CST FRI APR 18 1986

...A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES OF NORTH
CENTRAL TEXAS FROM 415 PM CST U