Area Forecast Discussion
Issued by NWS Billings, MT
Issued by NWS Billings, MT
495 FXUS65 KBYZ 151619 AFDBYZ Area Forecast Discussion...Updated National Weather Service Billings MT 1019 AM MDT Mon Jul 15 2024 .UPDATE... Added some low pops due to ongoing activity. Mostly virga is expected, but a few light showers may reach the ground. Archer && .DISCUSSION... Through Tuesday night... Today and tomorrow will feature high pressure dropping down from the north ans sliding to our east. Persistent easterly winds will act to advect in cooler air lowering temperatures into the high 80s to low 90s Monday and Tuesday. Easterly winds will also advect in some moisture with higher dewpoints combining with lower temperatures leading to higher RH values. MinRH values will range from the high teens to low 30s today increasing into the low 20s to mid 30s for tomorrow bringing much needed relief for ongoing fires. Monsoon moisture will make its way into the region this afternoon and evening bringing a 20-40% chance of precipitation along the Montana/Wyoming border. Early Tuesday a wave moving through to our northeast will bring a 20% chance for showers and thunderstorms from Miles City down to Ridgeway. Storms are not expected to be severe. Smoke due to wildfires is expected to bring some haze across parts of the region over the next few days. Torgerson Wednesday through Sunday... Models remain consistent that a strong ridge will dominate the weather pattern for the extended period. Some monsoonal moisture under the ridge may produce some isolated to scattered showers/thundershowers over the western mountains...but the chance of measurable rainfall at the lower elevations looks pretty bleak for most locations over the plains through the period (<10%). Despite the above normal temperatures and dry conditions...wind fields do not look to strong so critical fire weather concerns may be limited. Look for highs generally 95-100 degrees and lows ranging from near 60 in the foothills to mid 60s on the plains. The hottest day may be Thursday when Billings has a 45% chance of reaching 100 degrees with nearby river valleys showing a 50-60% chance. BT && .AVIATION... Starting around 21z today lasting through the evening there will be showers and thunderstorms along the Montana/Wyoming border. These storms are not expected to be severe but could bring erratic winds and visibility obstructions of higher terrain. Haze due to wildfire smoke could cause slant wise visibility reductions with a greater risk for KBIL,KSHR, and KLVM. Torgerson && .PRELIMINARY POINT TEMP/POPS... Tdy Tue Wed Thu Fri Sat Sun ------------------------------------------------------- BIL 093 063/091 063/095 065/099 067/098 066/096 065/096 2/W 00/U 00/U 01/U 11/U 11/U 00/U LVM 093 054/093 056/093 058/096 060/095 058/094 057/095 1/B 01/U 01/U 12/T 13/T 11/U 11/U HDN 092 060/092 060/095 062/100 063/098 062/096 061/096 2/W 10/U 10/U 01/U 11/U 10/U 10/U MLS 087 063/088 062/090 065/097 067/096 066/094 066/094 0/U 20/U 00/U 00/U 11/U 10/U 10/U 4BQ 090 064/090 061/091 065/098 067/096 064/093 065/092 2/W 10/U 00/U 00/U 11/U 11/U 10/U BHK 085 058/084 056/087 060/093 062/092 060/090 061/090 0/U 21/U 00/U 00/U 11/U 11/U 10/U SHR 090 058/090 056/092 058/097 060/095 059/093 058/092 2/T 01/U 11/U 01/U 12/T 11/U 11/U && .BYZ WATCHES/WARNINGS/ADVISORIES... MT...None. WY...None. && $$ weather.gov/billings