textproduct: Billings

KEY MESSAGES

- Thunderstorms exit southeast MT this evening.

- Mostly dry and seasonably cool Tuesday.

- Warmer with a chance for afternoon and evening showers and thunderstorms Wednesday and Thursday. Highest chance for precipitation and a severe storm or two will be Thursday.

- A warm and mainly dry day Friday, with increasing chances for precipitation and strong storms by Friday night.

- A strong weather system looks increasingly likely (moderate chance) to bring more widespread precipitation and mountain snow to the area over the weekend. Stay up to date with the latest forecast.

UPDATE

Have cancelled the remaining eastern counties from the Severe Thunderstorm Watch. Band of thunderstorms (nothing discrete) over Fallon & Carter has intensified of late (lightning activity jumped significantly), with the storms likely producing heavy rain, 40-50 mph wind gusts and perhaps pockets of small hail. Storms will exit far southeast MT in the next hour. Further west, scattered showers and a few weak thunderstorms are expected this evening. Ongoing cold advection has pushed temps down to the 50s most locations...noteworthy for the 3rd week of June. JKL

AVIATION

Scattered thunderstorms capable of local MVFR/IFR in heavy rain w/ possible small hail will impact areas near the Dakotas border until ~03z this evening. To the west will be scattered showers and a few weak thunderstorms. In addition to the convective winds, a frontal passage will bring N-NE 15-30kt gusts for a few hours this evening. Local MVFR ceilings are expected close to the foothills as well. Expect a transition to widespread VFR by early Tuesday. NW winds will gust 15-25kts east of KBIL tomorrow afternoon. JKL

PRELIMINARY POINT TEMP/POPS

Tue Wed Thu Fri Sat Sun Mon ----------------------------------------------------------- BIL 049/074 052/075 053/077 053/084 058/075 052/068 049/070 40/U 01/B 16/T 42/T 48/T 85/T 44/T LVM 043/070 046/074 046/075 046/081 048/069 041/060 039/064 30/U 01/B 38/T 42/T 59/T 97/T 66/T HDN 047/074 048/075 051/078 051/085 057/077 050/070 047/071 30/U 02/W 17/T 51/B 48/T 85/T 54/T MLS 049/072 047/072 050/076 052/080 057/078 053/070 050/070 40/U 01/B 04/T 61/B 56/T 66/T 55/W 4BQ 050/072 047/071 050/073 052/079 057/079 053/070 050/071 60/U 03/W 27/T 71/B 46/T 85/T 55/T BHK 046/069 043/071 044/073 049/075 052/077 050/071 047/070 60/N 00/B 03/T 62/W 46/T 85/T 55/T SHR 046/068 045/071 047/074 047/082 053/076 046/068 043/070 63/B 16/T 59/T 61/B 37/T 86/T 54/T

BYZ WATCHES/WARNINGS/ADVISORIES

MT...None. WY...None.