598
FXUS65 KBYZ 300811
AFDBYZ
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
211 AM MDT MON JUN 30 2025
KEY MESSAGES
- TURNING QUITE WARM THIS WEEK WITH MANY LOCATIONS IN THE 90S
TUESDAY THROUGH THURSDAY.
- DRY CONDITIONS TODAY, THEN CHANCE OF THUNDERSTORMS GRADUALLY
INCREASES THROUGH THE MIDDLE OF THE WEEK.
DISCUSSION
TODAY THROUGH TUESDAY NIGHT...
RIDGING BUILDS OVER THE AREA ALOFT WITH MUCH DRIER AIR (PWATS
~0.5IN) THROUGH TODAY/TONIGHT FOR MOSTLY CLEAR AND DRY CONDITIONS
TO START THE WORK WEEK. HIGHS TODAY WILL TREND WARMER, INTO THE
LOWER AND MID 80S.
UPPER RIDGE PREVAILS THROUGH TUESDAY AS WELL WITH HIGHS WARMING
INTO THE 90S ACROSS MOST LOCATIONS. THERE IS AN INDICATION OF SOME
SUBTLE IMPULSES MOVING NORTH ON THE WEAK SOUTHERLY FLOW UNDER THE
RIDGE (MONSOONAL IN NATURE). CAMS SUGGEST THIS WILL PRODUCE SOME
ISOLATED WEAK CONVECTION OVER THE BEARTOOTHS AND NEARBY AREAS
LATE TUESDAY INTO TUESDAY EVENING BEFORE DISSIPATING LATE.
BT
WEDNESDAY THROUGH SUNDAY...
THERE IS HIGH CONFIDENCE THAT RIDGING WITH ABOVE NORMAL
TEMPERATURES IS IN STORE THIS WEEK. WEDNESDAY LOOKS TO BE THE
WARMEST DAY OF THE WEEK, ESPECIALLY NORTH AND EAST OF BILLINGS.
DETAILS ARE SUBJECT TO CHANGE AS THE WORST OF THE HEAT IS STILL A
FEW DAYS OUT. THIS MEANS THAT IT IS IMPORTANT TO CONTINUE
MONITORING THE FORECAST AND PLAN ACTIVITIES ACCORDINGLY AS HEAT
CAN BE DEADLY IF PROPER PRECAUTIONS ARE NOT TAKEN. THE GOOD NEWS
IS THAT OVERNIGHT LOWS WILL NOT BE TOO WARM WITH EVEN THE WARMEST
NIGHTS STILL DIPPING BELOW 70F REGION-WIDE.
ALONG WITH THE WARMTH, A PUSH OF MONSOONAL MOISTURE IS APPEARING
MORE LIKELY FOR THE LATER PART OF THE WEEK. THIS WILL BRING
REPEATED CHANCES FOR SHOWERS AND THUNDERSTORMS INTO THE WEEKEND. ENSEMBLES
ARE IN MODERATE AGREEMENT THAT A SYSTEM MOVING OUT OF THE PNW
WILL HELP PUSH THE RIDGE AXIS EAST INTO THE WEEKEND. THIS WOULD
BRING TEMPERATURES BACK TO NEAR AVERAGE (80SF) ALONG WITH THE
INCREASED PRECIPITATION CHANCES.
MATOS/WMR
AVIATION
VFR CONDITIONS WILL PREVAIL THROUGHOUT THE PERIOD REGION-WIDE.
BREEZY WINDS GENERALLY OUT OF THE EAST (15-20KTS) ARE FORECAST TO
RETURN THIS AFTERNOON. WMR
PRELIMINARY POINT TEMP/POPS
TDY TUE WED THU FRI SAT SUN
-------------------------------------------------------
BIL 085 057/093 062/095 063/090 062/082 059/082 057/086
0/U 00/U 11/B 22/T 44/T 44/T 32/T
LVM 084 052/093 055/090 056/085 053/080 050/079 050/084
0/U 01/U 23/T 34/T 55/T 54/T 32/T
HDN 085 056/095 060/098 063/091 062/083 058/083 055/087
0/U 00/U 11/B 32/T 44/T 44/T 31/U
MLS 085 057/096 063/099 068/096 066/087 060/083 058/086
0/U 00/U 10/U 31/B 43/T 43/T 31/U
4BQ 082 057/093 062/096 068/093 065/083 060/081 058/084
0/U 00/U 10/U 31/B 53/T 33/T 31/U
BHK 081 053/091 060/093 065/094 062/084 057/080 055/083
0/U 00/U 10/U 31/B 43/T 33/T 32/T
SHR 083 053/092 057/094 060/088 057/079 052/080 051/084
0/U 01/U 11/B 23/T 55/T 44/T 32/T
BYZ WATCHES/WARNINGS/ADVISORIES
MT...NONE.
WY...NONE.
WEATHER.GOV/BILLINGS
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