Alert archive / Montana / Wind Advisories in 2021

Wind Advisory 2, NWS Billings, MT

January 11, 2021Park County, Stillwater County, Sweet Grass County, Montana

NWS Billings, MT issued this wind advisory at Jan 11, 2021, 11:45 AM MST for Park County, Stillwater County, Sweet Grass County, Montana. It took effect at Jan 12, 2021, 12:00 AM MST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Jan 11, 2021, 11:45 AM MST (18:45 UTC)
In effect from
Jan 12, 2021, 12:00 AM MST
Expired
Jan 12, 2021, 12:36 PM MST
In force
13 hr
Issued by
NWS Billings, MT

Counties Park County, MT, Stillwater County, MT, Sweet Grass County, MT

The radar

The Billings radar (KBLX), 107 km from the middle of the area, began a volume at 18:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Great_falls, MT (KTFX), launched 12:00Z, 6.8 hours before the alert went out and 206 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Great_falls, MT at 12:00Z on 2021-01-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Great_falls, MT at 12:00Z on 2021-01-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 140 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1708 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
140 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

366 
WWUS75 KBYZ 111845
NPWBYZ

URGENT - WEATHER MESSAGE
National Weather Service Billings MT
1145 AM MST Mon Jan 11 2021

MTZ065-066-121845-
/O.UPG.KBYZ.HW.A.0001.210112T1800Z-210115T0000Z/
/O.NEW.KBYZ.WI.Y.0002.210112T0700Z-210115T0000Z/
Livingston Area-Beartooth Foothills-
Including the cities of Livingston, Fishtail, and McLeod
1145 AM MST Mon Jan 11 2021

...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST
THURSDAY...

* WHAT...Southwest winds 30 to 45 mph with gusts around 60 mph
  expected late tonight through Tuesday night. Stronger winds
  could occur Wednesday into Thursday with southwest winds 35 to
  50 mph with gusts around 80 mph possible. 

* WHERE...Livingston Area and Beartooth Foothills.

* WHEN...From midnight tonight through 5 PM MST Thursday.

* IMPACTS...Strong crosswinds will make travel difficult on 
  Interstate 90 through Livingston, and some roads along the 
  Beartooth Foothills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

MTZ063-141-172-228-121845-
/O.CON.KBYZ.HW.A.0001.210113T0000Z-210115T0000Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
Including the cities of Judith Gap, Big Timber, Melville, 
and Harlowton
1145 AM MST Mon Jan 11 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH
THURSDAY AFTERNOON...

* WHAT...West winds gusting 50 to 75 mph.

* WHERE...Judith Gap, Northern Sweet Grass, Melville Foothills 
  and Southern Wheatland.

* WHEN...From Tuesday evening through Thursday afternoon.

* IMPACTS...Strong crosswinds could make travel difficult along 
  Interstate 90 near Big Timber and along Highway 191 from Big 
  Timber to Harlowton and Judith Gap.

* ADDITIONAL DETAILS...Strongest winds are expected to occur 
  Wednesday into Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

MTZ029>034-036-037-040-042-056>058-138-139-169-170-173-235-WYZ199-
121845-
/O.CON.KBYZ.HW.A.0001.210113T1800Z-210115T0000Z/
Musselshell-Treasure-Northern Rosebud-Custer-Fallon-
Northern Stillwater-Powder River-Carter-Northern Park-
Golden Valley-Red Lodge Foothills-Northern Big Horn-
Southern Rosebud-Southern Big Horn-Southeastern Carbon-
Bighorn Canyon-Northern Carbon-Northeastern Yellowstone-
Southwestern Yellowstone-Sheridan Foothills-
Including the cities of Roundup, Hysham, Colstrip, Forsyth, 
Miles City, Baker, Columbus, Absarokee, Broadus, Ekalaka, 
Clyde Park, Wilsall, Ryegate, Lavina, Red Lodge, Hardin, 
Crow Agency, Lame Deer, Pryor, Lodge Grass, Bridger, Fort Smith, 
Joliet, Fromberg, Custer, Pompeys Pillar, Billings, and Sheridan
1145 AM MST Mon Jan 11 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY AFTERNOON...

* WHAT...West to northwest winds gusting 50 to 70 mph.

* WHERE...Portions of north central Wyoming and central, south 
  central and southeast Montana.

* WHEN...From Wednesday afternoon through Thursday afternoon.

* IMPACTS...Strong crosswinds could make travel difficult along 
  Interstate 90 and 94, and US highways 12, 87 and 212.

* ADDITIONAL DETAILS...Strongest winds are expected to occur 
  Wednesday afternoon into Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$
Hooley
2 follow-up statements
846 
WWUS75 KBYZ 120951
NPWBYZ

URGENT - WEATHER MESSAGE
National Weather Service Billings MT
251 AM MST Tue Jan 12 2021

MTZ063-141-172-228-131000-
/O.UPG.KBYZ.HW.A.0001.210113T0000Z-210115T0000Z/
/O.NEW.KBYZ.HW.W.0002.210113T0600Z-210115T0000Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
Including the cities of Judith Gap, Big Timber, Melville, 
and Harlowton
251 AM MST Tue Jan 12 2021

...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM
MST THURSDAY...

* WHAT...West winds gusting 50 to 75 mph.

* WHERE...Judith Gap, Northern Sweet Grass, Melville Foothills 
  and Southern Wheatland.

* WHEN...From 11 PM this evening to 5 PM MST Thursday.

* IMPACTS...Strong crosswinds will make travel difficult along 
  Interstate 90 near Big Timber and along Highway 191 from Big 
  Timber to Harlowton and Judith Gap.

* ADDITIONAL DETAILS...Strongest winds are expected to occur 
  Wednesday into Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

MTZ065-066-131000-
/O.CON.KBYZ.WI.Y.0002.000000T0000Z-210115T0000Z/
Livingston Area-Beartooth Foothills-
Including the cities of Livingston, Fishtail, and McLeod
251 AM MST Tue Jan 12 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THURSDAY...

* WHAT...Southwest to west winds gusting 50 to 70 mph today and
  tonight. Stronger winds could occur Wednesday into Thursday with
  southwest to west wind gusts to around 80 mph possible.

* WHERE...Livingston Area and Beartooth Foothills.

* WHEN...Until 5 PM MST Thursday.

* IMPACTS...Strong crosswinds will make travel difficult on
  Interstate 90 through Livingston, and some roads along the
  Beartooth Foothills.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

MTZ029>034-036-037-040-042-056>058-138-139-169-170-173-235-WYZ199-
131000-
/O.CON.KBYZ.HW.A.0001.210113T1800Z-210115T0000Z/
Musselshell-Treasure-Northern Rosebud-Custer-Fallon-
Northern Stillwater-Powder River-Carter-Northern Park-
Golden Valley-Red Lodge Foothills-Northern Big Horn-
Southern Rosebud-Southern Big Horn-Southeastern Carbon-
Bighorn Canyon-Northern Carbon-Northeastern Yellowstone-
Southwestern Yellowstone-Sheridan Foothills-
Including the cities of Roundup, Hysham, Colstrip, Forsyth, 
Miles City, Baker, Columbus, Absarokee, Broadus, Ekalaka, 
Clyde Park, Wilsall, Ryegate, Lavina, Red Lodge, Hardin, 
Crow Agency, Lame Deer, Pryor, Lodge Grass, Bridger, Fort Smith, 
Joliet, Fromberg, Custer, Pompeys Pillar, Billings, and Sheridan
251 AM MST Tue Jan 12 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON 
THROUGH THURSDAY AFTERNOON...

* WHAT...West to northwest winds gusting 50 to 70 mph.

* WHERE...Portions of north central Wyoming and central, south 
  central and southeast Montana.

* WHEN...From Wednesday afternoon through Thursday afternoon.

* IMPACTS...Strong crosswinds could make travel difficult along 
  Interstate 90 and 94, and US highways 12, 87 and 212.

* ADDITIONAL DETAILS...Strongest winds are expected to occur 
  Wednesday afternoon into Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$
877 
WWUS75 KBYZ 121936
NPWBYZ

URGENT - WEATHER MESSAGE
National Weather Service Billings MT
1236 PM MST Tue Jan 12 2021

MTZ065-066-131945-
/O.UPG.KBYZ.WI.Y.0002.000000T0000Z-210115T0000Z/
/O.EXB.KBYZ.HW.W.0002.210112T1936Z-210115T0100Z/
Livingston Area-Beartooth Foothills-
Including the cities of Livingston, Fishtail, and McLeod
1236 PM MST Tue Jan 12 2021

...HIGH WIND WARNING IN EFFECT UNTIL 6 PM MST THURSDAY...

* WHAT...Southwest winds 40 to 60 mph with gusts up to 85 mph.

* WHERE...Livingston Area and Beartooth Foothills.

* WHEN...Until 6 PM MST Thursday. Strongest winds late tonight
  through Wednesday evening.

* IMPACTS...Winds of these magnitudes can cause property damage
  without extra precautions. Tree and power line damage is likely
  and may result power outages. Travel will be difficult, 
  especially for high profile vehicles and those towing trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Dangerous crosswinds can topple high profile vehicles and 
trailers, those driving these types of vehicles should take an 
alternate route or postpone travel until winds subside. Property
owners should secure loose items to prevent damage from flying
debris. 

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

MTZ034-040-042-131945-
/O.UPG.KBYZ.HW.A.0001.210113T1800Z-210115T0000Z/
/O.EXB.KBYZ.HW.W.0002.210113T0100Z-210115T0100Z/
Northern Stillwater-Northern Park-Golden Valley-
Including the cities of Columbus, Absarokee, Clyde Park, Wilsall,
Ryegate, and Lavina
1236 PM MST Tue Jan 12 2021

...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MST
THURSDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 70 mph 
  expected.

* WHERE...Northern Stillwater, Northern Park and Golden Valley.

* WHEN...From 6 PM this evening to 6 PM MST Thursday. Strongest
  winds from late tonight through Wednesday evening.

* IMPACTS...Winds of these magnitudes can cause property damage
  without extra precautions. Tree and power line damage is likely
  and may result power outages. Travel will be difficult, 
  especially for high profile vehicles and those towing trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Dangerous crosswinds can topple high profile vehicles and 
trailers, those driving these types of vehicles should take an 
alternate route or postpone travel until winds subside. Property
owners should secure loose items to prevent damage from flying
debris. 

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

MTZ029-030-057-138-139-169-170-173-235-131945-
/O.UPG.KBYZ.HW.A.0001.210113T1800Z-210115T0000Z/
/O.EXB.KBYZ.HW.W.0002.210113T1300Z-210115T0100Z/
Musselshell-Treasure-Northern Big Horn-Southern Big Horn-
Southeastern Carbon-Bighorn Canyon-Northern Carbon-
Northeastern Yellowstone-Southwestern Yellowstone-
Including the cities of Roundup, Hysham, Hardin, Crow Agency, 
Pryor, Lodge Grass, Bridger, Fort Smith, Joliet, Fromberg, 
Custer, Pompeys Pillar, and Billings
1236 PM MST Tue Jan 12 2021

...HIGH WIND WARNING IN EFFECT FROM 6 AM WEDNESDAY TO 6 PM MST
THURSDAY...

* WHAT...West winds 30 to 50 mph with gusts up to 70 mph 
  expected.

* WHERE...Portions of central and south central Montana.

* WHEN...From 6 AM Wednesday to 6 PM MST Thursday. Strongest winds
  Wednesday afternoon through late Wednesday night.

* IMPACTS...Winds of these magnitudes can cause property damage
  without extra precautions. Tree and power line damage is likely
  and may result power outages. Travel will be difficult,
  especially for high profile vehicles and those towing trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Dangerous crosswinds can topple high profile vehicles and 
trailers, those driving these types of vehicles should take an 
alternate route or postpone travel until winds subside. Property
owners should secure loose items to prevent damage from flying
debris. 

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

MTZ056-131945-
/O.UPG.KBYZ.HW.A.0001.210113T1800Z-210115T0000Z/
/O.EXB.KBYZ.HW.W.0002.210113T1300Z-210114T1300Z/
Red Lodge Foothills-
Including the city of Red Lodge
1236 PM MST Tue Jan 12 2021

...HIGH WIND WARNING IN EFFECT FROM 6 AM WEDNESDAY TO 6 AM MST
THURSDAY...

* WHAT...West winds 30 to 50 mph with gusts up to 70 mph expected. 

* WHERE...Red Lodge Foothills.

* WHEN...From 6 AM Wednesday to 6 AM MST Thursday. Strongest winds
  during the day Wednesday.

* IMPACTS...Winds of these magnitudes can cause property damage
  without extra precautions. Tree and power line damage is likely
  and may result power outages. Travel will be difficult,
  especially for high profile vehicles and those towing trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Dangerous crosswinds can topple high profile vehicles and 
trailers, those driving these types of vehicles should take an 
alternate route or postpone travel until winds subside. Property
owners should secure loose items to prevent damage from flying
debris. 


Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

WYZ199-131945-
/O.UPG.KBYZ.HW.A.0001.210113T1800Z-210115T0000Z/
/O.EXB.KBYZ.HW.W.0002.210113T1900Z-210115T0100Z/
Sheridan Foothills-
Including the city of Sheridan
1236 PM MST Tue Jan 12 2021

...HIGH WIND WARNING IN EFFECT FROM NOON WEDNESDAY TO 6 PM MST
THURSDAY...

* WHAT...Northwest winds 30 to 50 mph with gusts up to 70 mph 
  expected.

* WHERE...Sheridan Foothills.

* WHEN...From noon Wednesday to 6 PM MST Thursday. Strongest winds
  Wednesday night into Thursday morning.

* IMPACTS...Winds of these magnitudes can cause property damage
  without extra precautions. Tree and power line damage is likely
  and may result power outages. Travel will be difficult,
  especially for high profile vehicles and those towing trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Dangerous crosswinds can topple high profile vehicles and 
trailers, those driving these types of vehicles should take an 
alternate route or postpone travel until winds subside. Property
owners should secure loose items to prevent damage from flying
debris. 

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

MTZ031>033-036-037-058-131945-
/O.UPG.KBYZ.HW.A.0001.210113T1800Z-210115T0000Z/
/O.EXB.KBYZ.HW.W.0002.210113T1900Z-210115T0700Z/
Northern Rosebud-Custer-Fallon-Powder River-Carter-
Southern Rosebud-
Including the cities of Colstrip, Forsyth, Miles City, Baker, 
Broadus, Ekalaka, and Lame Deer
1236 PM MST Tue Jan 12 2021

...HIGH WIND WARNING IN EFFECT FROM NOON WEDNESDAY TO MIDNIGHT
MST THURSDAY NIGHT...

* WHAT...Northwest winds 35 to 45 mph with gusts up to 70 mph 
  expected.

* WHERE...Portions of southeast Montana.

* WHEN...From noon Wednesday to midnight MST Thursday night.
  Strongest winds Wednesday night into Thursday.

* IMPACTS...Winds of these magnitudes can cause property damage
  without extra precautions. Tree and power line damage is likely
  and may result power outages. Travel will be difficult,
  especially for high profile vehicles and those towing trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Dangerous crosswinds can topple high profile vehicles and 
trailers, those driving these types of vehicles should take an 
alternate route or postpone travel until winds subside. Property
owners should secure loose items to prevent damage from flying
debris. 


Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

MTZ063-141-172-228-131945-
/O.EXT.KBYZ.HW.W.0002.210113T0100Z-210115T0100Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
Including the cities of Judith Gap, Big Timber, Melville, 
and Harlowton
1236 PM MST Tue Jan 12 2021

...HIGH WIND WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
MST THURSDAY...

* WHAT...West winds 35 to 55 mph with gusts up to 75 mph 
  expected.

* WHERE...Melville Foothills, Southern Wheatland, Judith Gap and 
  Northern Sweet Grass.

* WHEN...From 6 PM this evening to 6 PM MST Thursday. Strongest
  winds Wednesday.

* IMPACTS...Winds of these magnitudes can cause property damage
  without extra precautions. Tree and power line damage is likely
  and may result power outages. Travel will be difficult,
  especially for high profile vehicles and those towing trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Dangerous crosswinds can topple high profile vehicles and 
trailers, those driving these types of vehicles should take an 
alternate route or postpone travel until winds subside. Property
owners should secure loose items to prevent damage from flying
debris. 


Additional graphics for this hazard can be found at
http://www.weather.gov/billings

$$

The office that day

Everything else NWS Billings, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 11, 3:04 AM MSTHigh Wind WatchBYZBig Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 9 more34 hr

Nearby

Wind Advisories in Montana, 2021Every wind advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.