Warm and dry for Memorial Day, isolated T-storms over western mountains; Flood risk by week’s end

(Riverton, Wyo.) – The National Weather Service Forecast Office in Riverton is predicting warm and mainly dry conditions today and possible flooding from snowmelt later this week. The NWS Statement is copied below:

Warm and mainly dry conditions are expected, as we remember and honor those who have served our country this Memorial Day. A few isolated thunderstorms will be possible this afternoon and evening, mainly across the western mountains and portions of Johnson and Natrona Counties. Any thunderstorm activity will come to an end shortly after sunset tonight. Tuesday and Wednesday, warm to hot conditions are expected, with near 90 degree high temperatures possible east of the divide. A few isolated thunderstorms may also develop during the afternoon and evening hours. With warm temperatures, and possible rain, area rivers and streams will have elevated flood risks by the end of the week.

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE…TODAY AND TONIGHT

ISOLATED THUNDERSTORMS OVER THE EXTREME NORTH AND EAST.

.DAYS TWO THROUGH SEVEN…TUESDAY THROUGH SUNDAY

THROUGH THE PERIOD…RIVERS AND CREEKS RUNNING HIGH…WITH CONTINUED RAPID MOUNTAIN SNOWMELT. WEDNESDAY THROUGH FRIDAY…MINOR TO MODERATE FLOODING POSSIBLE ON A FEW RIVERS AND CREEKS. PLEASE SEE
THE HYDROLOGIC OUTLOOK FOR MORE DETAILS.

TUESDAY AND WEDNESDAY…HOT. ISOLATED THUNDERSTORMS EACH AFTERNOON AND EVENING. BREEZY TO WINDY CONDITIONS EACH DAY WITH INCREASED FIRE BEHAVIOR FOR THE LOWER ELEVATIONS OF THE SOUTHWEST AND CENTRAL PORTIONS OF THE FORECAST AREA.

THURSDAY…BREEZY TO WINDY AREAS AND STILL WARM ACROSS THE CENTRAL AND SOUTH. SLIGHTLY COOLER OVER THE NORTH AND WEST. ISOLATED AFTERNOON AND EVENING THUNDERSTORMS.

FRIDAY…COOLER WITH A CHANCE OF THUNDERSTORMS.

 

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