Severe Thunderstorm Warning 4, NWS Pocatello, ID

EASTERN IDAHO AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
215 PM MDT WED MAY 6 1998

SATELLITE AND KSFX 88D SHOWING CONVECTION BEGINNING TO FIRE IN EAST ID
OVER THE CARIBOU HIGHLANDS AND PORTIONS OF THE SNAKE RIVER PLAIN WITH
MOST STORMS INITIALLY FIRING OVER HIGHER TERRAIN.  ONE SPOTTER REPORT
FROM SODA SPRINGS OF UP TO 1/4 INCH HAIL SO FAR.  STILL EXPECT MOST
STORMS TO REMAIN BELOW SEVERE THRESHOLDS THIS AFTERNOON BUT WILL NEED
TO MONITOR CLOSELY AS BETTER INSTABILITY AND PRECIPITABLE WATER VALUES
THIS AFTERNOON THAN PREVIOUS TWO DAYS.  SHOWERS AND THUNDERSTORMS WILL
TAPER OFF AROUND SUNSET THIS EVENING AND EXPECT A REPEAT TOMORROW
AFTERNOON AS AXIS OF PRECIPITABLE WATER AND INSTABILITY REMAINS OVER
THE SOUTHERN HALF OF EAST ID.  FOR FRIDAY...DEFORMATION ZONE WILL
SLOWLY SHIFT SOUTHWARD ALLOWING A SLIGHTLY DRIER AIRMASS TO MOVE OVER
THE AREA...SO FRIDAY SHOULD PROVIDE A BRIEF RESPITE AS WEAK RIDGING
INFLUENCES MOST OF THE PACIFIC NW.  NEXT SIGNIFICANT SHORTWAVE WORKS
INTO PACIFIC NW ON FRIDAY EVENING WITH LONGER RANGE MODELS INDICATING
A LOW PRESSURE SYSTEM DEVELOPING OVER THE INTERMOUNTAIN REGION FOR SAT
AND SUN.  THIS WILL BRING INCREASING CLOUDS...THE THREAT OF MORE RAIN
AND COOLER TEMPERATURES FOR THE WEEKEND.   DSH

.WSR88D KSFX...VCP21 OPERATIONAL.

IDA BB 040/069 039/068 036 02322
PIH BB 041/070 040/069 037 02433