000 AWUS85 KGGW 202200 RWSGGW REGIONAL WEATHER SUMMARY WEATHER SERVICE GLASGOW MT 4 PM MDT FRI MAY 20 2005 ...THIS REGIONAL WEATHER SUMMARY IS FOR THE EASTERN TWO THIRDS OF MONTANA...SOUTHERN SASKATCHEWAN AND WESTERN NORTH DAKOTA... STRONG WEATHER DISTURBANCES...IN ASSOCIATION WITH SOUTHWEST FLOW ALOFT...WILL LIKELY CREATE RAIN SHOWERS AND THUNDERSTORMS TONIGHT. SOME STORMS MAY BECOME SEVERE. A LOW PRESSURE AREA WILL FORM OVER SOUTHERN SASKATCHEWAN ON SATURDAY...WHICH WILL CREATE STRONG PRESSURE DIFFERENCES ACROSS THE REGION. THE RESULT WILL BE STRONG WINDS ON SATURDAY. TONIGHT...NUMEROUS THUNDERSTORMS ARE EXPECTED LATE. SOME MAY BECOME SEVERE WITH HEAVY RAINFALL. OVERNIGHT TEMPERATURES WILL DROP INTO THE 50S. EAST WINDS WILL REACH 10 TO 20 MPH. SATURDAY...SKIES WILL BECOME MOSTLY SUNNY AFTER MORNING SHOWERS. WEST TO NORTHWEST WINDS WILL BECOME STRONG AT 30 TO 40 MPH WITH HIGHER GUSTS TO 60 OR 70 MPH. TEMPERATURES WILL BE COOLER WITH HIGHS IN THE 60S. THE ULTRAVIOLET INDEX FOR SATURDAY IS FORECASTED TO BE 4...WHICH MEANS A MODERATE RISK OF HARM FROM EXPOSURE TO SUNSHINE. $$ ST