Alert archive / Montana / High Wind Warnings in 2020

High Wind Warning 6, NWS Billings, MT

March 2, 202014 counties in Montana; Sheridan County, Wyoming

NWS Billings, MT issued this high wind warning at Mar 2, 2020, 3:08 AM MST for 14 counties in Montana; Sheridan County, Wyoming. It was in force for 65 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 2, 2020, 3:08 AM MST (10:08 UTC)
Expired
Mar 4, 2020, 8:36 PM MST
In force
65 hr
Issued by
NWS Billings, MT

Counties Big Horn County, MT, Carbon County, MT, Carter County, MT, Custer County, MT, Fallon County, MT, Golden Valley County, MT, Musselshell County, MT, Powder River County, MT, Rosebud County, MT, Stillwater County, MT, Sweet Grass County, MT, Treasure County, MT, Wheatland County, MT, Yellowstone County, MT, Sheridan County, WY

The radar

The Billings radar (KBLX), 85 km from the middle of the area, began a volume at 10:14 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

Riverton, WY (KRIW), launched 00:00Z, 10.1 hours before the alert went out and 320 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, Riverton, WY at 00:00Z on 2020-03-02Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 00:00Z on 2020-03-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
1305 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Billings, MT wrote its last area forecast discussion before this high wind warning went out at Mar 1, 7:25 PM MST, 7 hours 43 minutes earlier.

Area forecast discussion, Mar 1, 7:25 PM MST, 7 hours 43 minutes before
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Hazardous weather outlook, Mar 1, 2:40 PM MST, 12 hours 28 minutes before
Hazardous Weather Outlook
National Weather Service Billings MT
240 PM MST Sun Mar 1 2020

MTZ040-063>066-141-172-228-022300-
Northern Park-Judith Gap-Paradise Valley-Livingston Area-
Beartooth Foothills-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
240 PM MST Sun Mar 1 2020

This Hazardous Weather Outlook is for portions of central Montana
and south central Montana.

* WHAT...Strong winds.

* WHERE...Western foothills.

* WHEN...Monday night through Wendesday night.

* ADDITIONAL DETAILS...West to southwest winds will increase Monday
  night and continue through Wednesday night. Wind gusts of 50 to
  65 mph are possible at times and this could cause dangerous
  crosswinds along I-90 from Big Timber to Livingston and along
  Highway 191 north of Big Timber. Winds will decrease late
  Wednesday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Hazardous Weather Outlook is issued when hazardous weather could
impact the region within the next week. Be sure to stay tuned for
future updates as locations, timing, and impacts could change.
Begin preparations to mitigate any impacts that could result from
the hazardous weather.

&&

MTZ029>034-036-037-042-056>058-138-139-169-170-173-235-WYZ199-
022300-
Musselshell-Treasure-Northern Rosebud-Custer-Fallon-
Northern Stillwater-Powder River-Carter-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-
240 PM MST Sun Mar 1 2020

This Hazardous Weather Outlook is for portions of central
Montana...south central Montana...southeast Montana and north
central Wyoming.

* WHAT...Strong winds.

* WHERE...Southern Montana and northern Wyoming.

* WHEN...Tuesday and Wednesday.

* ADDITIONAL DETAILS...Strong wind gusts are expected both Tuesday
  afternoon and Wednesday afternoon ahead of a cold front. The
  strongest winds should be Wednesday, when gusts of 40 to 50 mph
  are possible. Monitor your local forecast closely, as there is
  still some uncertainty on the exact extent of these winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Hazardous Weather Outlook is issued when hazardous weather could
impact the region within the next week. Be sure to stay tuned for
future updates as locations, timing, and impacts could change.
Begin preparations to mitigate any impacts that could result from
the hazardous weather.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 3:08 AM MSTWind AdvisoryBYZPark, Stillwater, Sweet Grass65 hr

Nearby

High Wind Warnings in Montana, 2020High Wind Warnings in Wyoming, 2020Every high wind warning in 2020

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.