Alert archive / Montana / High Wind Warnings in 2021

High Wind Warning 1, NWS Billings, MT

January 1, 2021Golden Valley County, Sweet Grass County, Wheatland County, Montana

NWS Billings, MT issued this high wind warning at Jan 1, 2021, 1:19 PM MST for Golden Valley County, Sweet Grass County, Wheatland County, Montana. It took effect at Jan 2, 2021, 3:00 AM MST. It was in force for 39 hr. 10 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jan 1, 2021, 1:19 PM MST (20:19 UTC)
In effect from
Jan 2, 2021, 3:00 AM MST
Expired
Jan 3, 2021, 6:18 PM MST
In force
39 hr
Issued by
NWS Billings, MT

Counties Golden Valley County, MT, Sweet Grass County, MT, Wheatland County, MT

The radar

The Billings radar (KBLX), 90 km from the middle of the area, began a volume at 20:17 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.

What was reported inside it

TimeReportWhereRemark
Jan 2, 11:55 AM MSTNON-TSTM WND GST 552 Ssw Big Timber, MT
Jan 2, 12:31 PM MSTNON-TSTM WND GST 511 S Big Timber, MT
Jan 2, 6:55 PM MSTNON-TSTM WND GST 562 Ssw Big Timber, MT
Jan 2, 11:15 PM MSTNON-TSTM WND GST 589 Se Melville, MT
Jan 3, 12:10 AM MSTNON-TSTM WND GST 602 Ssw Big Timber, MT
Jan 3, 12:58 AM MSTNON-TSTM WND GST 52Judith Gap, MT
Jan 3, 1:59 AM MSTNON-TSTM WND GST 54Judith Gap, MT
Jan 3, 2:18 AM MSTNON-TSTM WND GST 57Judith Gap, MT
Jan 3, 3:45 AM MSTNON-TSTM WND GST 554 W Harlowton, MT
Jan 3, 3:49 PM MSTNON-TSTM WND GST 532 W Reed Point, MT

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Great_falls, MT (KTFX), launched 12:00Z, 8.3 hours before the alert went out and 156 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 2021-01-01Temperature 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 2021-01-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 228 square meters per square second.1939587897Sfc1 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
1441 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
228 m²/s²
0-3 km storm-relative helicity
244 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

152 
WWUS75 KBYZ 012019
NPWBYZ

URGENT - WEATHER MESSAGE
National Weather Service Billings MT
119 PM MST Fri Jan 1 2021

MTZ063-141-172-228-022030-
/O.NEW.KBYZ.HW.W.0001.210102T1000Z-210104T0200Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
Including the cities of Judith Gap, Big Timber, Melville, 
and Harlowton
119 PM MST Fri Jan 1 2021

...HIGH WIND WARNING IN EFFECT FROM 3 AM SATURDAY TO 7 PM MST
SUNDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph 
  expected.

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

* WHEN...From 3 AM Saturday to 7 PM MST Sunday.

* 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.

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

$$

MTZ065-066-022030-
/O.EXT.KBYZ.WI.Y.0001.210101T2200Z-210104T0200Z/
Livingston Area-Beartooth Foothills-
Including the cities of Livingston, Fishtail, and McLeod
119 PM MST Fri Jan 1 2021

...WIND ADVISORY NOW IN EFFECT UNTIL 7 PM MST SUNDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph 
  expected.

* WHERE...Livingston Area and Beartooth Foothills.

* WHEN...Until 7 PM MST Sunday. Strongest winds expected tonight
  through Saturday morning and Saturday night through Sunday.

* 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

$$
6 follow-up statements
935 
WWUS75 KBYZ 021010
NPWBYZ

URGENT - WEATHER MESSAGE
National Weather Service Billings MT
310 AM MST Sat Jan 2 2021

MTZ063-141-172-228-031015-
/O.CON.KBYZ.HW.W.0001.000000T0000Z-210104T0200Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
Including the cities of Judith Gap, Big Timber, Melville, 
and Harlowton
310 AM MST Sat Jan 2 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MST SUNDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph 
  expected.

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

* WHEN...Until 7 PM MST Sunday.

* 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.

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

$$

MTZ065-066-031015-
/O.CON.KBYZ.WI.Y.0001.000000T0000Z-210104T0200Z/
Livingston Area-Beartooth Foothills-
Including the cities of Livingston, Fishtail, and McLeod
310 AM MST Sat Jan 2 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST SUNDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph 
  expected.

* WHERE...Livingston Area and Beartooth Foothills.

* WHEN...Until 7 PM MST Sunday. Strongest winds expected through
  this morning and tonight through Sunday.

* 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

$$
107 
WWUS75 KBYZ 022102
NPWBYZ

URGENT - WEATHER MESSAGE
National Weather Service Billings MT
202 PM MST Sat Jan 2 2021

MTZ063-141-172-228-032115-
/O.CON.KBYZ.HW.W.0001.000000T0000Z-210104T0200Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
Including the cities of Judith Gap, Big Timber, Melville, 
and Harlowton
202 PM MST Sat Jan 2 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MST SUNDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph 
  expected.

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

* WHEN...Until 7 PM MST Sunday.

* 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.

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

$$

MTZ065-066-032115-
/O.CON.KBYZ.WI.Y.0001.000000T0000Z-210104T0200Z/
Livingston Area-Beartooth Foothills-
Including the cities of Livingston, Fishtail, and McLeod
202 PM MST Sat Jan 2 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST SUNDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph 
  expected.

* WHERE...Livingston Area and Beartooth Foothills.

* WHEN...Until 7 PM MST Sunday. Strongest winds expected through 
  this morning and tonight through Sunday.

* 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

$$
400 
WWUS75 KBYZ 030255
NPWBYZ

URGENT - WEATHER MESSAGE
National Weather Service Billings MT
755 PM MST Sat Jan 2 2021

MTZ063-141-172-228-040200-
/O.CON.KBYZ.HW.W.0001.000000T0000Z-210104T0200Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
Including the cities of Judith Gap, Big Timber, Melville, 
and Harlowton
755 PM MST Sat Jan 2 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MST SUNDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph 
  expected.

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

* WHEN...Until 7 PM MST Sunday.

* 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.

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

$$

MTZ065-066-040200-
/O.CON.KBYZ.WI.Y.0001.000000T0000Z-210104T0200Z/
Livingston Area-Beartooth Foothills-
Including the cities of Livingston, Fishtail, and McLeod
755 PM MST Sat Jan 2 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST SUNDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph 
  expected.

* WHERE...Livingston Area and Beartooth Foothills.

* WHEN...Until 7 PM MST Sunday. Strongest winds expected tonight 
  through Sunday.

* 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

$$
599 
WWUS75 KBYZ 031001
NPWBYZ

URGENT - WEATHER MESSAGE
National Weather Service Billings MT
301 AM MST Sun Jan 3 2021

MTZ063-141-172-228-040200-
/O.CON.KBYZ.HW.W.0001.000000T0000Z-210104T0200Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
Including the cities of Judith Gap, Big Timber, Melville, 
and Harlowton
301 AM MST Sun Jan 3 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS
EVENING...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph 
  expected.

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

* WHEN...Until 7 PM MST today.

* 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.

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

$$

MTZ065-066-040200-
/O.CON.KBYZ.WI.Y.0001.000000T0000Z-210104T0200Z/
Livingston Area-Beartooth Foothills-
Including the cities of Livingston, Fishtail, and McLeod
301 AM MST Sun Jan 3 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph 
  expected.

* WHERE...Livingston Area and Beartooth Foothills.

* WHEN...Until 7 PM MST today. 

* 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

$$
974 
WWUS75 KBYZ 031920
NPWBYZ

URGENT - WEATHER MESSAGE
National Weather Service Billings MT
1220 PM MST Sun Jan 3 2021

MTZ063-141-172-228-040200-
/O.CON.KBYZ.HW.W.0001.000000T0000Z-210104T0200Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
Including the cities of Judith Gap, Big Timber, Melville, 
and Harlowton
1220 PM MST Sun Jan 3 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS
EVENING...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph 
  expected.

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

* WHEN...Until 7 PM MST today.

* 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.

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

$$

MTZ065-066-040200-
/O.CON.KBYZ.WI.Y.0001.000000T0000Z-210104T0200Z/
Livingston Area-Beartooth Foothills-
Including the cities of Livingston, Fishtail, and McLeod
1220 PM MST Sun Jan 3 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph 
  expected.

* WHERE...Livingston Area and Beartooth Foothills.

* WHEN...Until 7 PM MST today.

* 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

$$
158 
WWUS75 KBYZ 040118
NPWBYZ

URGENT - WEATHER MESSAGE
National Weather Service Billings MT
618 PM MST Sun Jan 3 2021

MTZ063-141-172-228-040230-
/O.CAN.KBYZ.HW.W.0001.000000T0000Z-210104T0200Z/
Judith Gap-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
Including the cities of Judith Gap, Big Timber, Melville, 
and Harlowton
618 PM MST Sun Jan 3 2021

...HIGH WIND WARNING IS CANCELLED...

Strong winds have decreased over the area this evening.

$$

MTZ065-066-040230-
/O.CAN.KBYZ.WI.Y.0001.000000T0000Z-210104T0200Z/
Livingston Area-Beartooth Foothills-
Including the cities of Livingston, Fishtail, and McLeod
618 PM MST Sun Jan 3 2021

...WIND ADVISORY IS CANCELLED...

Strong winds have decreased over the area this evening.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 1, 3:03 AM MSTWind AdvisoryBYZPark, Stillwater, Sweet Grass63 hr

Nearby

High Wind Warnings in Montana, 2021Every high wind warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.