Boise, ID
Boise, ID
4
4
0
Air Quality Concerns Continue for Parts of the West;
Record Warmth Pacific Northwest; Tropical Impacts into Guam
Billings, Billings Logan International Airport (KBIL)
Clear 54°F/ 12°C
Humidity 66%
Wind Speed SW 11 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 43°F (6°C)
Visibility 9.00 mi
Last update 20 May 07:30 AM MDT
Today
A 30 percent chance of showers and thunderstorms
after 3pm. Patchy smoke. Increasing clouds, with a high near 84.
West southwest wind 7 to 14 mph becoming north in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm.
Patchy smoke. Partly cloudy, with a low around 54. Northeast wind
6 to 11 mph becoming light and variable.
Sunday
Areas of smoke. Sunny, with a high near 82. West wind around
6 mph becoming east southeast in the afternoon.
Sunday Night
Mostly clear, with a low around 55. East southeast
wind 6 to 10 mph becoming west southwest after midnight.
Monday
A 30 percent chance of showers and thunderstorms after noon.
Mostly sunny, with a high near 87. Southwest wind 7 to 10 mph.
Monday Night
A 30 percent chance of showers and thunderstorms
before midnight. Partly cloudy, with a low around 53.
West southwest wind 9 to 15 mph becoming
north northwest in the evening.
Tuesday
Mostly sunny, with a high near 77. West wind 7 to 11 mph
becoming east in the morning.
Tuesday Night
A slight chance of showers and thunderstorms.
Mostly cloudy, with a low around 54. Northeast wind
10 to 14 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms.
Mostly cloudy, with a low around 54. Northeast wind 10 to 14 mph.
Chance of precipitation is 20%.
Wednesday
A 40 percent chance of showers and thunderstorms
after noon. Partly sunny, with a high near 74. North northeast wind
8 to 11 mph.
Wednesday Night
A chance of showers and thunderstorms before midnight,
then a slight chance of showers. Mostly cloudy, with a low around 54.
North northeast wind 9 to 11 mph. Chance of precipitation is 40%.
Thursday
A 50 percent chance of showers and thunderstorms.
Partly sunny, with a high near 72. North wind 8 to 10 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms.
Mostly cloudy, with a low around 52. Northeast wind 9 to 11 mph
becoming north northwest after midnight.
Friday
A 50 percent chance of showers and thunderstorms.
Partly sunny, with a high near 76. Northwest wind 8 to 11 mph
becoming northeast in the afternoon.
------------------------------------
Area Forecast Discussion
National Weather Service Billings MT
208 AM MDT Sat May 20 2023
.DISCUSSION...
Through Sunday night...
Satellite imagery showed a powerful upper ridge over the western
CONUS into western Canada. A vigorous short wave was tracking
southeastward through western Saskatchewan.
The upper ridge will exert its influence today with warmer temps
across the CWA. Highs may be 10 to 15 degrees warmer than average
for this time of year, with many locations in the 80s. Look for
hazy sunshine to start the day as smoke still lingers over the
area. The aforementioned short wave tracking southeast out of
Saskatchewan will move into the Dakotas this evening dragging a
front across our area late in the day switching the winds to the
north and helping initiate some isolated to scattered convection.
CAPE is not too bad with 500-1000 J/kg progged, but bulk shear is
weak and helicity next to nothing so sustained updrafts will be
hard to come by. A few cells may briefly produce some small hail,
but otherwise will likely remain garden variety before dying off
this evening.
Unfortunately, the shift to northerly flow behind the front will
open the door to more Canadian wildfire smoke. The RAP model
continues to indicate a significant slug of smoke moving into our
region overnight and into Sunday...and we see no reason to
disbelieve it based on current satellite imagery.
So we expect a very hazy/smokey Sunday. We have shaved off a
couple of degrees from guidance due to the anticipation of thicker
smoke, but highs should still be in the upper 70s to mid 80s. The
ridge axis will be right over us Sunday as an upper low settles
into the Pacific NW. The pattern should result in some showers and
isolated thunder over our western mountains and foothills Sunday
afternoon, but little if anything for the eastern plains.
Notes...We anticipate the Air Quality Alert will be extended to
cover the remainder of the weekend as conditions should worsen
again later tonight into Sunday. The best time for outdoor
activities this weekend may be this morning through mid afternoon.
BT
Monday through Friday...
The main focus points over the long term will be ridging keeping
temperatures above to much above average and prolonged southwest
flow bringing multiple precipitation chances.
On Monday, a Pacific trough will bring upper level southwest flow
and at the same time, near surface winds will be southerly, which
may advect moisture from the Gulf into the region. This
combination will bring some instability with poor shear and high
PWAT Monday and Tuesday, which could lead to isolated showers and
thunderstorms. Tuesday night on, more moisture is expected to move
in and bring better precip chances (40-70%) for Wednesday through
Friday. There is still uncertainty between the models on the
possibility of severe weather. Currently, the shear profile may
become more favorable but instability mostly remains along the
border with the Dakotas.
Temps Monday are expected to be well above normal, with highs in
the 80s to low 90s, before a cold front moves through, reducing
highs to the 70s to low 80s. Archer
&&
.AVIATION...
VFR conditions will generally rule today, however, look for
isolated to scattered showers/thunderstorms after 20Z as a front
shifts winds to the north. A few storms could produce brief MVFR
with very small hail. The northerly winds will bring another
round of heavier smoke to the area by tonight and may reduce
local surface and slantwise visibilities. BT/Archer
&&
.PRELIMINARY POINT TEMP/POPS...
Tdy Sun Mon Tue Wed Thu Fri
-------------------------------------------------------
BIL 084 054/083 055/087 054/077 055/075 055/072 053/076
3/T 20/K 03/T 31/U 24/T 45/T 55/T
LVM 081 050/080 052/082 046/076 048/072 049/071 048/074
2/T 12/T 15/T 31/U 25/T 46/T 45/T
HDN 085 051/083 052/089 054/079 056/077 053/074 052/077
3/T 20/K 02/T 31/U 34/T 55/T 55/T
MLS 084 052/082 055/090 059/079 058/080 056/073 055/075
2/T 10/K 01/U 31/U 24/T 53/T 43/T
4BQ 082 053/081 055/089 057/079 057/080 056/075 054/076
0/K 20/K 00/U 21/U 24/T 44/T 43/T
BHK 080 049/080 053/088 056/078 053/077 054/074 052/074
0/K 10/K 00/U 21/U 24/T 44/W 43/T
SHR 080 050/079 050/083 051/076 051/074 051/073 049/074
0/K 11/K 02/T 22/T 35/T 55/T 55/T
.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...None.
WY...None.
--------------------------------------------
KBIL (Billings/Logan Intl, MT, US)
CLEAR 9SM
Temperature: 13.3°C ( 56°F)
Dewpoint: 6.1°C ( 43°F) [RH = 62%]
Pressure (altimeter): 30.14 inches Hg
WINDS: SW 13MPH/ HZ ALQDS
----------------------------------
KBTM (Butte/Mooney Arpt, MT, US)
CLEAR 9SM
Temperature: 8.9°C ( 48°F)
Dewpoint: 3.9°C ( 39°F) [RH = 71%]
Pressure (altimeter): 30.30 inches Hg
WINDS: CALM /
-----------------------
KBZN (Bozeman/Gallatin Fld, MT, US)
6SM FU CLR (FU SMOKE)
Temperature: 12.2°C ( 54°F)
Dewpoint: 4.4°C ( 40°F) [RH = 59%]
Pressure (altimeter): 30.24 inches Hg
WINDS: SOUTHEAST 5MPH
-------------------------------
KCTB (Cut Bank Muni, MT, US)
Temperature: 15.0°C ( 59°F)
Dewpoint: 7.8°C ( 46°F) [RH = 62%]
Pressure (altimeter): 30.17 inches
WINDS: WNW 13MPH
-----------------------------
KDTN (Shreveport/Downtown, LA, US)
BKN013 OVC025/ 10SM
Temperature: 23.9°C ( 75°F)
Dewpoint: 20.0°C ( 68°F) [RH = 79%]
Pressure (altimeter): 30.09 inches Hg
WINDS: NORTHWEST 10MPH
--------------------------------
KGTF (Great Falls Intl, MT, US)
FEW100/ 7SM FU
Temperature: 15.6°C ( 60°F)
Dewpoint: 8.3°C ( 47°F) [RH = 62%]
Pressure (altimeter): 30.16 inches Hg
WINDS: WEST 7MPH
-------------------------------
KHLN (Helena Rgnl, MT, US
CLR 5SM HZ
Temperature: 13.9°C ( 57°F)
Dewpoint: 5.0°C ( 41°F) [RH = 55%]
Pressure (altimeter): 30.21 inches Hg
WINDS: NORTHEAST 3MPH
Temperature: 13.9°C ( 57°F)
Dewpoint: 5.0°C ( 41°F) [RH = 55%]
Pressure (altimeter): 30.21 inches Hg
WINDS: WSW 6MPH
----------------------------------------
KLWT (Lewistown Muni, MT, US)
Temperature: 20.0°C ( 68°F)
Dewpoint: 6.1°C ( 43°F) [RH = 40%]
Pressure (altimeter): 30.16 inches Hg
WINDS: WSW 6MPH
----------------------------------
KMSO (Missoula Intl, MT, US)
CLR 6SM FU
Temperature: 16.1°C ( 61°F)
Dewpoint: 10.6°C ( 51°F) [RH = 70%]
Pressure (altimeter): 30.21 inches Hg
WINDS: CALM
------------------------------
Record Warmth Pacific Northwest; Tropical Impacts into Guam
Billings, Billings Logan International Airport (KBIL)
Clear 54°F/ 12°C
Humidity 66%
Wind Speed SW 11 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 43°F (6°C)
Visibility 9.00 mi
Last update 20 May 07:30 AM MDT
Today
A 30 percent chance of showers and thunderstorms
after 3pm. Patchy smoke. Increasing clouds, with a high near 84.
West southwest wind 7 to 14 mph becoming north in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm.
Patchy smoke. Partly cloudy, with a low around 54. Northeast wind
6 to 11 mph becoming light and variable.
Sunday
Areas of smoke. Sunny, with a high near 82. West wind around
6 mph becoming east southeast in the afternoon.
Sunday Night
Mostly clear, with a low around 55. East southeast
wind 6 to 10 mph becoming west southwest after midnight.
Monday
A 30 percent chance of showers and thunderstorms after noon.
Mostly sunny, with a high near 87. Southwest wind 7 to 10 mph.
Monday Night
A 30 percent chance of showers and thunderstorms
before midnight. Partly cloudy, with a low around 53.
West southwest wind 9 to 15 mph becoming
north northwest in the evening.
Tuesday
Mostly sunny, with a high near 77. West wind 7 to 11 mph
becoming east in the morning.
Tuesday Night
A slight chance of showers and thunderstorms.
Mostly cloudy, with a low around 54. Northeast wind
10 to 14 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms.
Mostly cloudy, with a low around 54. Northeast wind 10 to 14 mph.
Chance of precipitation is 20%.
Wednesday
A 40 percent chance of showers and thunderstorms
after noon. Partly sunny, with a high near 74. North northeast wind
8 to 11 mph.
Wednesday Night
A chance of showers and thunderstorms before midnight,
then a slight chance of showers. Mostly cloudy, with a low around 54.
North northeast wind 9 to 11 mph. Chance of precipitation is 40%.
Thursday
A 50 percent chance of showers and thunderstorms.
Partly sunny, with a high near 72. North wind 8 to 10 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms.
Mostly cloudy, with a low around 52. Northeast wind 9 to 11 mph
becoming north northwest after midnight.
Friday
A 50 percent chance of showers and thunderstorms.
Partly sunny, with a high near 76. Northwest wind 8 to 11 mph
becoming northeast in the afternoon.
------------------------------------
Area Forecast Discussion
National Weather Service Billings MT
208 AM MDT Sat May 20 2023
.DISCUSSION...
Through Sunday night...
Satellite imagery showed a powerful upper ridge over the western
CONUS into western Canada. A vigorous short wave was tracking
southeastward through western Saskatchewan.
The upper ridge will exert its influence today with warmer temps
across the CWA. Highs may be 10 to 15 degrees warmer than average
for this time of year, with many locations in the 80s. Look for
hazy sunshine to start the day as smoke still lingers over the
area. The aforementioned short wave tracking southeast out of
Saskatchewan will move into the Dakotas this evening dragging a
front across our area late in the day switching the winds to the
north and helping initiate some isolated to scattered convection.
CAPE is not too bad with 500-1000 J/kg progged, but bulk shear is
weak and helicity next to nothing so sustained updrafts will be
hard to come by. A few cells may briefly produce some small hail,
but otherwise will likely remain garden variety before dying off
this evening.
Unfortunately, the shift to northerly flow behind the front will
open the door to more Canadian wildfire smoke. The RAP model
continues to indicate a significant slug of smoke moving into our
region overnight and into Sunday...and we see no reason to
disbelieve it based on current satellite imagery.
So we expect a very hazy/smokey Sunday. We have shaved off a
couple of degrees from guidance due to the anticipation of thicker
smoke, but highs should still be in the upper 70s to mid 80s. The
ridge axis will be right over us Sunday as an upper low settles
into the Pacific NW. The pattern should result in some showers and
isolated thunder over our western mountains and foothills Sunday
afternoon, but little if anything for the eastern plains.
Notes...We anticipate the Air Quality Alert will be extended to
cover the remainder of the weekend as conditions should worsen
again later tonight into Sunday. The best time for outdoor
activities this weekend may be this morning through mid afternoon.
BT
Monday through Friday...
The main focus points over the long term will be ridging keeping
temperatures above to much above average and prolonged southwest
flow bringing multiple precipitation chances.
On Monday, a Pacific trough will bring upper level southwest flow
and at the same time, near surface winds will be southerly, which
may advect moisture from the Gulf into the region. This
combination will bring some instability with poor shear and high
PWAT Monday and Tuesday, which could lead to isolated showers and
thunderstorms. Tuesday night on, more moisture is expected to move
in and bring better precip chances (40-70%) for Wednesday through
Friday. There is still uncertainty between the models on the
possibility of severe weather. Currently, the shear profile may
become more favorable but instability mostly remains along the
border with the Dakotas.
Temps Monday are expected to be well above normal, with highs in
the 80s to low 90s, before a cold front moves through, reducing
highs to the 70s to low 80s. Archer
&&
.AVIATION...
VFR conditions will generally rule today, however, look for
isolated to scattered showers/thunderstorms after 20Z as a front
shifts winds to the north. A few storms could produce brief MVFR
with very small hail. The northerly winds will bring another
round of heavier smoke to the area by tonight and may reduce
local surface and slantwise visibilities. BT/Archer
&&
.PRELIMINARY POINT TEMP/POPS...
Tdy Sun Mon Tue Wed Thu Fri
-------------------------------------------------------
BIL 084 054/083 055/087 054/077 055/075 055/072 053/076
3/T 20/K 03/T 31/U 24/T 45/T 55/T
LVM 081 050/080 052/082 046/076 048/072 049/071 048/074
2/T 12/T 15/T 31/U 25/T 46/T 45/T
HDN 085 051/083 052/089 054/079 056/077 053/074 052/077
3/T 20/K 02/T 31/U 34/T 55/T 55/T
MLS 084 052/082 055/090 059/079 058/080 056/073 055/075
2/T 10/K 01/U 31/U 24/T 53/T 43/T
4BQ 082 053/081 055/089 057/079 057/080 056/075 054/076
0/K 20/K 00/U 21/U 24/T 44/T 43/T
BHK 080 049/080 053/088 056/078 053/077 054/074 052/074
0/K 10/K 00/U 21/U 24/T 44/W 43/T
SHR 080 050/079 050/083 051/076 051/074 051/073 049/074
0/K 11/K 02/T 22/T 35/T 55/T 55/T
.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...None.
WY...None.
--------------------------------------------
KBIL (Billings/Logan Intl, MT, US)
CLEAR 9SM
Temperature: 13.3°C ( 56°F)
Dewpoint: 6.1°C ( 43°F) [RH = 62%]
Pressure (altimeter): 30.14 inches Hg
WINDS: SW 13MPH/ HZ ALQDS
----------------------------------
KBTM (Butte/Mooney Arpt, MT, US)
CLEAR 9SM
Temperature: 8.9°C ( 48°F)
Dewpoint: 3.9°C ( 39°F) [RH = 71%]
Pressure (altimeter): 30.30 inches Hg
WINDS: CALM /
-----------------------
KBZN (Bozeman/Gallatin Fld, MT, US)
6SM FU CLR (FU SMOKE)
Temperature: 12.2°C ( 54°F)
Dewpoint: 4.4°C ( 40°F) [RH = 59%]
Pressure (altimeter): 30.24 inches Hg
WINDS: SOUTHEAST 5MPH
-------------------------------
KCTB (Cut Bank Muni, MT, US)
Temperature: 15.0°C ( 59°F)
Dewpoint: 7.8°C ( 46°F) [RH = 62%]
Pressure (altimeter): 30.17 inches
WINDS: WNW 13MPH
-----------------------------
KDTN (Shreveport/Downtown, LA, US)
BKN013 OVC025/ 10SM
Temperature: 23.9°C ( 75°F)
Dewpoint: 20.0°C ( 68°F) [RH = 79%]
Pressure (altimeter): 30.09 inches Hg
WINDS: NORTHWEST 10MPH
--------------------------------
KGTF (Great Falls Intl, MT, US)
FEW100/ 7SM FU
Temperature: 15.6°C ( 60°F)
Dewpoint: 8.3°C ( 47°F) [RH = 62%]
Pressure (altimeter): 30.16 inches Hg
WINDS: WEST 7MPH
-------------------------------
KHLN (Helena Rgnl, MT, US
CLR 5SM HZ
Temperature: 13.9°C ( 57°F)
Dewpoint: 5.0°C ( 41°F) [RH = 55%]
Pressure (altimeter): 30.21 inches Hg
WINDS: NORTHEAST 3MPH
Temperature: 13.9°C ( 57°F)
Dewpoint: 5.0°C ( 41°F) [RH = 55%]
Pressure (altimeter): 30.21 inches Hg
WINDS: WSW 6MPH
----------------------------------------
KLWT (Lewistown Muni, MT, US)
Temperature: 20.0°C ( 68°F)
Dewpoint: 6.1°C ( 43°F) [RH = 40%]
Pressure (altimeter): 30.16 inches Hg
WINDS: WSW 6MPH
----------------------------------
KMSO (Missoula Intl, MT, US)
CLR 6SM FU
Temperature: 16.1°C ( 61°F)
Dewpoint: 10.6°C ( 51°F) [RH = 70%]
Pressure (altimeter): 30.21 inches Hg
WINDS: CALM
------------------------------
National Weather Service - Graphical Forecast
Posted from digital.weather.gov
State of Montana
Pierre
Minot AFB
Boise
Dallas
Posted 2 y ago
Responses: 3
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