Area Forecast Discussion
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
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522 FXUS65 KTFX 172059 AFDTFX Area Forecast Discussion National Weather Service Great Falls MT 259 PM MDT Wed Jul 17 2024 .SYNOPSIS... Isolated thunderstorms are expected this evening, mostly south of a line from Great Falls to Lewistown. On Thursday, expect a few more thunderstorms during the afternoon and evening hours, especially in the Havre and Lewistown areas. Otherwise, above normal temperatures will continue through the upcoming weekend and into next week. && .DISCUSSION... Tonight through Thursday...Isolated thunderstorms are expected through this evening, with a redevelopment of scattered thunderstorms on Thursday. Some of the stronger storms will produce gusty winds, hail and frequent lightning. An isolated severe storm is also possible. Otherwise above normal temperatures will continue. For Friday through Wednesday, expect the trend of above normal temperatures to continue. Overall, most lower elevation locations will have afternoon highs ranging from the lower to upper 90s. Little to no precipitation is expected for much of the early portions of next week, as an upper level ridge will reside over the CWA into the middle portion of next week. Brusda && && .AVIATION... 17/18Z TAF Period Mainly VFR conditions are expected across North Central and Southwestern Montana today as warm and mostly dry conditions persist. Watch for a few isolated SHRA/TSRA over the higher terrain, along with some smoke from KHLN south. Warm temperatures will result in high density altitude for some. Ludwig Refer to weather.gov/zlc for more detailed regional aviation weather and hazard information. && .FIRE WEATHER... Isolated thunderstorms are expected this evening, while scattered thunderstorms are expected on Thursday. Expect a mix of dry and wet thunderstorms. The main concern from any storms will be gusty outflow winds and lightning that occurs away from the parent storms. Brusda && .PRELIMINARY POINT TEMPS/POPS... GTF 63 93 60 93 / 0 20 10 0 CTB 60 89 55 92 / 10 20 10 0 HLN 64 98 62 97 / 10 20 10 10 BZN 58 95 57 93 / 0 20 10 10 WYS 45 84 44 84 / 10 30 10 20 DLN 56 91 54 89 / 20 10 0 10 HVR 63 94 59 94 / 0 20 50 10 LWT 59 90 55 87 / 20 30 30 10 && .TFX WATCHES/WARNINGS/ADVISORIES... None. && $$ http://www.weather.gov/greatfalls