Hail in Wyoming, July 7, 2003

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
730 PM MDT MON JUL 7 2003

01Z SURFACE ANALYSIS HAD BOUNDARY FROM NORTHEAST WY INTO CONVECTION
OVER THE NE PANHANDLE. 21Z RUC HAS DECENT HANDLE ON NE
CONVECTION...AND SOME OF THIS MIGHT REACH THE FAR SOUTH LATER THIS
EVENING. FORECAST HODOGRAPHS OVER NORTHEASTERN WY ACTUALLY FAVOR
LEFT MOVING SUPERCELLS...AND THIS IS EVIDENT BY LEFT MOVER LASTING
90 MINUTES SO FAR. LOW LEVEL JET WILL CRANK TONIGHT WITH CONVECTION
POSSIBLE OVER ANY PORTION OF THE CWA.

FORECAST IN GOOD SHAPE. WILL LIKELY UPDATE LATER THIS EVENING TO
TWEAK TIMING OF CONVECTION.

.UNR...NONE

HELGESON

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-081300-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
600 AM MDT MON JUL 7 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS ACROSS CENTRAL SOUTH DAKOTA THIS MORNING
WILL END ACROSS THE AREA BY LATE MORNING AS THEY MOVE INTO
EASTERN SOUTH DAKOTA. THEN...AN APPROACHING UPPER LEVEL DISTURBANCE
WILL BRING ANOTHER CHANCE OF THUNDERSTORMS TO THE REGION THIS
AFTERNOON...GENERALLY SOUTH OF INTERSTATE 90.

TONIGHT...ANOTHER WEATHER DISTURBANCE WILL TRACK INTO THE NORTHERN
PLAINS BRINGING YET ANOTHER CHANCE OF THUNDERSTORMS TO THE AREA
OVERNIGHT.

THUNDERSTORMS ARE NOT EXPECTED TO BECOME SEVERE TODAY OR TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A POTENT UPPER LEVEL DISTURBANCE WILL MOVE THROUGH THE REGION
TUESDAY AND TUESDAY NIGHT...BRINGING AN INCREASED CHANCE OF
THUNDERSTORMS ACROSS NORTHEASTERN WYOMING AND WESTERN SOUTH DAKOTA.
SOME OF THESE THUNDERSTORMS MAY BECOME SEVERE BOTH TUESDAY AND
TUESDAY NIGHT.

AN UPPER LEVEL RIDGE WILL THEN BUILD INTO THE NORTHERN PLAINS AND
BRING DRIER WEATHER TO THE AREA FOR THE REMAINDER OF THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

JOHNSON