716

FXUS64 KOUN 031611

AFDOKC

AREA FORECAST DISCUSSION

NATIONAL WEATHER SERVICE NORMAN OK

1110 AM CDT THU MAY 3 2001



WEAK UPPER WAVE MOVING ACROSS THE AREA... COMBINED WITH WEAKENING OF 

THE STRONG MID LEVEL CAP THAT WE HAD YESTERDAY... HAS ALLOWED 

SCATTERED SHOWERS AND THUNDERSTORMS TO PERSIST ACROSS MAINLY THE 

WESTERN PART OKLAHOMA AND NORTH TEXAS. UPPER LEVEL DIFLUENCE AND 

POSITIONING OF THE AREA UNDER LEFT FRONT QUAD OF SUBTROPICAL JET AND 

RIGHT REAR QUAD OF POLAR JET ALSO LENDING SOME SUPPORT FOR LIFT. 

MAIN FOCUS OF SHOWER AND TSTM ACTIVITY HAS BEEN NEAR THE STATIONARY 

FRONT EXTENDING ACROSS PORTIONS OF WEST CENTRAL AND NORTHWEST 

OKLAHOMA. MEANWHILE... ANVIL FROM CONVECTION IN THE LUBBOCK AREA HAS 

BEEN CLOUDING UP THE ONE CLEAR ZONE THAT HAD BEEN PRESENT NEAR THE 

FORECAST AREA. FOR NOW... LOOKS LIKE SEVERE STORMS LIKELY NOT TO GET 

TOO OUT OF HAND AS LACK OF MUCH OF A CAP... AND WIDESPREAD CLOUD 

COVER... WILL TEND TO SUPPRESS DEVELOPMENT OF STRONG INSTABILITIES. 

WILL LOWER TEMPS A CAT OR TWO OVER NORTHWEST ZONES WHERE COOLING 

INFLUENCE OF THE FRONT WILL PERSIST THROUGH MUCH OF THE DAY WITH 

WINDS BEING SLOWER TO VEER THAN EARLIER FORECAST.



32



.OUN...

OK...NONE.

TX...NONE.










716

FXUS64 KOUN 031611

AFDOKC

AREA FORECAST DISCUSSION

NATIONAL WEATHER SERVICE NORMAN OK

1110 AM CDT THU MAY 3 2001



WEAK UPPER WAVE MOVING ACROSS THE AREA... COMBINED WITH WEAKENING OF 

THE STRONG MID LEVEL CAP THAT WE HAD YESTERDAY... HAS ALLOWED 

SCATTERED SHOWERS AND THUNDERSTORMS TO PERSIST ACROSS MAINLY THE 

WESTERN PART OKLAHOMA AND NORTH TEXAS. UPPER LEVEL DIFLUENCE AND 

POSITIONING OF THE AREA UNDER LEFT FRONT QUAD OF SUBTROPICAL JET AND 

RIGHT REAR QUAD OF POLAR JET ALSO LENDING SOME SUPPORT FOR LIFT. 

MAIN FOCUS OF SHOWER AND TSTM ACTIVITY HAS BEEN NEAR THE STATIONARY 

FRONT EXTENDING ACROSS PORTIONS OF WEST CENTRAL AND NORTHWEST 

OKLAHOMA. MEANWHILE... ANVIL FROM CONVECTION IN THE LUBBOCK AREA HAS 

BEEN CLOUDING UP THE ONE CLEAR ZONE THAT HAD BEEN PRESENT NEAR THE 

FORECAST AREA. FOR NOW... LOOKS LIKE SEVERE STORMS LIKELY NOT TO GET 

TOO OUT OF HAND AS LACK OF MUCH OF A CAP... AND WIDESPREAD CLOUD 

COVER... WILL TEND TO SUPPRESS DEVELOPMENT OF STRONG INSTABILITIES. 

WILL LOWER TEMPS A CAT OR TWO OVER NORTHWEST ZONES WHERE COOLING 

INFLUENCE OF THE FRONT WILL PERSIST THROUGH MUCH OF THE DAY WITH 

WINDS BEING SLOWER TO VEER THAN EARLIER FORECAST.



32



.OUN...

OK...NONE.

TX...NONE.