Alert archive / Idaho / Wind Advisories in 2014

Wind Advisory 28, NWS Missoula, MT

December 20, 2014Clearwater County, Idaho County, Idaho

NWS Missoula, MT issued this wind advisory at Dec 20, 2014, 9:54 PM PST for Clearwater County, Idaho County, Idaho. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Dec 20, 2014, 9:54 PM PST (05:54 UTC)
Expired
Dec 21, 2014, 5:42 AM PST
In force
8 hr
Issued by
NWS Missoula, MT

Counties Clearwater County, ID, Idaho County, ID

The radar

The Missoula radar (KMSX), 148 km from the middle of the area, began a volume at 05:54 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

Spokane, WA (KOTX), launched 00:00Z, 5.9 hours before the alert went out and 172 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, Spokane, WA at 00:00Z on 2014-12-21Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2014-12-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 266 square meters per square second.1939587897117Sfc1 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
520 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
266 m²/s²
0-3 km storm-relative helicity
268 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

926 
WWUS75 KMSO 210554
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1054 PM MST SAT DEC 20 2014



IDZ007-211500-
/O.NEW.KMSO.WI.Y.0028.141221T0554Z-141221T1500Z/
OROFINO/GRANGEVILLE REGION-
1054 PM MST SAT DEC 20 2014

...WIND ADVISORY IN EFFECT UNTIL 7 AM PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 7 AM PST SUNDAY. 

* IMPACTS/TIMING: STRONG GUSTY WINDS WILL CONTINUE THROUGH THE
  EARLY MORNING HOURS IN THE VICINITY OF GRANGEVILLE.

* WINDS:SOUTH-SOUTHWEST 30 TO 40 MPH WITH GUSTS 45 TO 50 MPH. 

* LOCATIONS IMPACTED INCLUDE...GRANGEVILLE AND VICINITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
1 follow-up statement
663 
WWUS75 KMSO 211342
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
642 AM MST SUN DEC 21 2014


IDZ007-211445-
/O.CAN.KMSO.WI.Y.0028.000000T0000Z-141221T1500Z/
OROFINO/GRANGEVILLE REGION-
642 AM MST SUN DEC 21 2014

...WIND ADVISORY IS CANCELLED...

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



$$

Nearby

Wind Advisories in Idaho, 2014Every wind advisory in 2014

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.