Spot Forecast
Issued by NWS Bismarck, ND
Issued by NWS Bismarck, ND
753 FNUS73 KBIS 180422 FWSBIS Spot Forecast for Ash...BLM National Weather Service Bismarck ND 1122 PM CDT Tue Sep 17 2024 Forecast is based on forecast start time of 2200 CDT on September 17. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Showers and thunderstorms, currently located along the ND/SD border are forecast to move north, and will move across the burn site during the early morning hours (around midnight to 4 AM MDT). It`s possible that some of these storms could be severe with gusty erratic and damaging winds to 60 mph and quarter sized hail. Once showers and thunderstorms end, look for partly cloudy skies with south winds 10 to 20 mph. On Wednesday, look for mostly sunny skies in the morning, becoming mostly cloudy in the afternoon with showers likely and a slight chance of thunderstorms. Winds will be gusty and erratic near any afternoon thunderstorms. Surface winds on Wednesday are expected to be mainly south during the morning 10 to 15 mph with gusts to 25 mph. Winds are expected to shift southwest in the afternoon and increase to 20 to 30 mph with gusts to 40 mph. .REST OF TONIGHT... Sky/weather.........Mostly cloudy. Showers and thunderstorms late this evening through the early overnight hours. CWR.................66 percent. Chance of pcpn......80 percent. LAL.................3. Min temperature.....Around 56. Max humidity........97 percent. Wind (20 ft)........East winds around 15 mph shifting to the south 10 to 20 mph overnight. Gusty and erratic winds expected near thunderstorms. Mixing height.......400 ft AGL. Transport winds.....South around 15 mph. Smoke dispersal.....Poor (4600 knot-ft). Haines Index........4 or low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly sunny in the morning becoming mostly cloudy in the afternoon. Rain showers likely and a slight chance of thunderstorms in the afternoon. CWR.................7 percent. Chance of pcpn......60 percent. LAL.................2. Max temperature.....Around 71. Min humidity........49 percent. Wind (20 ft)........South winds 10 to 15 mph with gusts to around 25 mph in the morning. Winds shifting southwest and increasing to 20 to 30 mph with gusts to 40 mph. Gusty and erratic winds expected near afternoon thunderstorms. Mixing height.......5500 ft AGL. Transport winds.....South around 23 mph. Smoke dispersal.....Poor (6800 knot-ft) early in the morning increasing to very good (127000 knot-ft) in the afternoon. Haines Index........5 or moderate potential for large plume dominated fire growth. $$ Forecaster...HAMILTON Requested by...Hannah Type of request...WILDFIRE .TAG 2422658.0/BIS .DELDT 09/17/24 .FormatterVersion 2.0.0 .EMAIL mtmcc@firenet.gov