Alert archive / Montana / High Wind Watches in 2011

High Wind Watch 6, NWS Billings, MT

February 14, 20116 counties in Montana

NWS Billings, MT issued this high wind watch at Feb 14, 2011, 4:35 AM MST for 6 counties in Montana. It took effect at Feb 14, 2011, 6:00 PM MST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 14, 2011, 4:35 AM MST (11:35 UTC)
In effect from
Feb 14, 2011, 6:00 PM MST
Expired
Feb 14, 2011, 2:20 PM MST
In force
Issued by
NWS Billings, MT

Counties Carbon County, MT, Golden Valley County, MT, Park County, MT, Stillwater County, MT, Sweet Grass County, MT, Wheatland County, MT

The radar

The Billings radar (KBLX), 81 km from the middle of the area, began a volume at 11:33 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, 11.6 hours before the alert went out and 324 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 2011-02-14Temperature 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 2011-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 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
3686 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
92 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 watch 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 watch went out at Feb 14, 3:49 AM MST, 46 minutes earlier.

Area forecast discussion, Feb 14, 3:49 AM MST, 46 minutes before
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Hazardous weather outlook, Feb 14, 4:35 AM MST, 0 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
435 AM MST MON FEB 14 2011

MTZ028-041-056-063-065-066-068-151145-
SOUTHERN WHEATLAND-NORTHERN SWEET GRASS-RED LODGE FOOTHILLS-
JUDITH GAP-LIVINGSTON AREA-BEARTOOTH FOOTHILLS-CRAZY MOUNTAINS-
435 AM MST MON FEB 14 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA
AND SOUTH CENTRAL MONTANA.

.DAY ONE...TODAY AND TONIGHT

VERY STRONG GUSTY WEST TO SOUTHWEST WINDS WILL DEVELOP ALONG THE
BEARTOOTH FOOTHILLS...THE RED LODGE FOOTHILLS...AND SWEET WATER
AND WHEATLAND COUNTIES BY THIS EVENING...WITH GUSTS TO 60 MPH
POSSIBLE LATE TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

VERY STRONG SOUTHWEST WINDS WILL CONTINUE IN THE LEE OF THE
MOUNTAINS THROUGH WEDNESDAY EVENING. GUSTS OF 60 TO 70 MPH ARE
POSSIBLE IN THESE INTERSTATE 90 FROM BIG TIMBER TO LIVINGSTON...
HIGHWAY 191 NORTH FROM BIG TIMBER...HIGHWAY 12 THROUGH
HARLOWTON...AND IN THE RED LODGE SKI AREA.

A CHANGE IN THE WEATHER PATTERN IS EXPECTED TO BEGIN BY LATE
WEDNESDAY AND THURSDAY AS A STRONG PACIFIC DISTURBANCE MOVES INTO
THE REGION. LOOK FOR A GOOD CHANCE OF SNOW ACROSS THE AREA FROM
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...AND A TRANSITION TO BELOW
NORMAL TEMPERATURES THURSDAY THROUGH NEXT WEEKEND. STAY TUNED TO
THE LATEST FORECASTS AS THE WEATHER PATTERN EVOLVES THIS WEEK.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 14, 2:20 PM MSTWind AdvisoryBYZPark, Stillwater, Sweet Grass31 hr

Nearby

High Wind Watches in Montana, 2011Every high wind watch in 2011

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.