Area Forecast Discussion
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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709 FXUS65 KRIW 261646 AFDRIW Area Forecast Discussion National Weather Service Riverton WY 1046 AM MDT Thu Sep 26 2024 .KEY MESSAGES... - Well above normal temperatures continue across the Cowboy State today. - Elevated to critical fire weather conditions will be possible today as winds increase during the afternoon/evening. - Warm, dry, and quiet conditions are to remain in place into the weekend with little to no chances for precipitation. - Cooler and more seasonable temperatures may return to the state by the start of next week. && .DISCUSSION... Issued at 201 AM MDT Thu Sep 26 2024 Yesterday saw record breaking heat across the Cowboy State. Numerous locations broke or tied previous record high values, one place to note was Buffalo where the high reached 98 degrees! Fortunately, temperatures will be slightly cooler today but still well above normal. Highs east of the divide will reach the mid to upper 80s, west of the Divide will see highs in the mid to upper 70s. Winds will increase once again this afternoon/evening with widespread westerly/northwesterly gusts of 20 to 30 mph. Due to these gusty winds, warm temperatures, and low RH values, elevated to critical fire weather conditions will be likely today. Red Flag Warnings have been issued for this afternoon/evening across portions of Johnson, Natrona, Fremont, and Sweetwater Counties. Warm, dry, and quiet conditions are expected to prevail through the remainder of the week as high pressure stays in place over the region. Ridging looks to persist across the region into the weekend keeping any disturbances well to the north of the area. Models do show the possibility of a disturbance move to the north of the area for Sunday into Monday. Any precipitation with this system looks to remain to the north of the CWA but a cold front may sweep across the state bringing cooler and more seasonable temperatures. Current forecasted highs for Monday are in the low 70s to mid 60s, which would be a welcomed return to fall like weather. Obviously with this system still being nearly 5 days away there still is a lot of room for change and confidence in the exact impacts remains low at this time. && .AVIATION /18Z TAFS THROUGH 18Z FRIDAY/... Issued at 1046 AM MDT Thu Sep 26 2024 Prevailing VFR/SKC conditions continue through the TAF period. Wind will increase this afternoon as a trough slides east through MT. Most terminals will have wind gusts ranging from 15-25 knots this afternoon. A weak cold front will push south this evening, resulting in a wind shift to more northerly at KCPR through the overnight hours. Wind will decrease shortly after sunset at most terminals and remain light through Friday as high pressure redevelops in the area. Please see the Aviation Weather Center and/or CWSU ZDV and ZLC for the latest information on icing and turbulence forecasts. && .FIRE WEATHER... Issued at 201 AM MDT Thu Sep 26 2024 A Red Flag Warning is in place for portions of the state today during the afternoon/evening. Winds will increase throughout the day today with westerly gusts of 25 to 35 mph. The strongest winds will be across portions of Natrona and Sweetwater Counties. Min RH values will range from 10 to 15 percent today. Winds will shift to the north by the late afternoon with gusts around 20 to 25 mph. All winds will begin to decrease around sunset. Winds will be much lighter on Friday, and will remain below Warning Criteria. && .RIW WATCHES/WARNINGS/ADVISORIES... Red Flag Warning until 7 PM MDT this evening for WYZ279>281- 289. && $$ DISCUSSION...Dziewaltowski AVIATION...Rowe FIRE WEATHER...Dziewaltowski