Alert archive / Montana / Wind Advisories in 2016

Wind Advisory 2, NWS Missoula, MT

February 28, 20164 counties in Montana

NWS Missoula, MT issued this wind advisory at Feb 28, 2016, 11:53 AM MST for 4 counties in Montana. It took effect at Feb 29, 2016, 11:00 AM MST. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Feb 28, 2016, 11:53 AM MST (18:53 UTC)
In effect from
Feb 29, 2016, 11:00 AM MST
Expired
Feb 29, 2016, 2:09 PM MST
In force
3 hr
Issued by
NWS Missoula, MT

Counties Deer Lodge County, MT, Granite County, MT, Powell County, MT, Silver Bow County, MT

The radar

The Missoula radar (KMSX), 110 km from the middle of the area, began a volume at 18:54 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, 6.9 hours before the alert went out and 225 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 2016-02-28Temperature 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 km15 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 2016-02-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 241 square meters per square second.19395878Sfc1 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
1628 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
241 m²/s²
0-3 km storm-relative helicity
206 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

528 
WWUS75 KMSO 281853
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1153 AM MST SUN FEB 28 2016

MTZ007-291900-
/O.NEW.KMSO.WI.Y.0002.160229T1800Z-160301T0000Z/
BUTTE/BLACKFOOT REGION-
1153 AM MST SUN FEB 28 2016

...WIND ADVISORY IN EFFECT FROM 11 AM TO 5 PM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 11 AM TO 5 PM MST MONDAY. 

* IMPACTS/TIMING: WESTERLY WINDS ARE EXPECTED TO INCREASE MONDAY
  AFTERNOON WITH A COLD FRONT RESULTING IN GUSTY CROSS-WINDS
  ALONG HIGHWAYS.

* WINDS: WEST 25 TO 35 MPH.

* LOCATIONS IMPACTED INCLUDE...BUTTE...GEORGETOWN LAKE...HIGHWAY 
  12 GARRISON TO ELLISTON...HOMESTAKE PASS...MACDONALD PASS

$$
1 follow-up statement
018 
WWUS75 KMSO 292109
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
209 PM MST MON FEB 29 2016


MTZ007-292215-
/O.CAN.KMSO.WI.Y.0002.000000T0000Z-160301T0000Z/
BUTTE/BLACKFOOT REGION-
209 PM MST MON FEB 29 2016

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WIND
ADVISORY. 

BREEZY WINDS WILL CONTINUE THIS AFTERNOON, BUT THE POTENTIAL FOR
STRONG WINDS IS DECREASING AND WINDS ARE NOT CURRENTLY STRONG
ENOUGH TO MERIT AN ADVISORY, SO THE ADVISORY IS CANCELLED.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 28, 11:52 AM MSTWinter Weather AdvisoryMSOFlathead, Granite, Lake, Mineral, Missoula, Ravalli and 1 more21 hr

Nearby

Wind Advisories in Montana, 2016Every wind advisory in 2016

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.