Alert archive / Idaho / Wind Advisories in 2009

Wind Advisory 2, NWS Missoula, MT

January 4, 2009Idaho County, Idaho

NWS Missoula, MT issued this wind advisory at Jan 4, 2009, 2:00 PM PST for Idaho County, Idaho. It took effect at Jan 4, 2009, 10:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued: Jan 4, 2009, 2:00 PM PST (22:00 UTC)
In effect from: Jan 4, 2009, 10:00 PM PST
Expired: Jan 4, 2009, 8:21 PM PST
In force
Issued by: NWS Missoula, MT

County Idaho County, ID

The radar

The Missoula radar (KMSX), 175 km from the middle of the area, began a volume at 22:06 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

Boise Airport, ID (KBOI), launched 12:00Z, 10.0 hours before the alert went out and 259 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1643 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 98 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.

000 
WWUS75 KMSO 042200
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
300 PM MST SUN JAN 4 2009


IDZ008-051200-
/O.NEW.KMSO.WI.Y.0002.090105T0600Z-090105T1500Z/
LOWER HELLS CANYON/SALMON RIVER REGION-
200 PM PST SUN JAN 4 2009

...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 7 AM PST
MONDAY...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 7 AM PST
MONDAY. 

GUSTY SOUTH WINDS OF 15 TO 30 MPH WITH GUSTS OF 40 TO 50 MPH WILL
DEVELOP LATER THIS EVENING AND LAST INTO MONDAY MORNING BEFORE
SHIFTING TO THE SOUTHWEST AND DIMINISHING. A STRONG PACIFIC
WEATHER SYSTEM WILL APPROACH THE AREA TONIGHT AND PASS THROUGH ON
MONDAY. THE WHITE BIRD GRADE MAY EXPERIENCE WHITE OUT CONDITIONS
ON MONDAY WHEN THE WINDS ARE THE STRONGEST DURING THE MORNING
HOURS.

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

$$

1 follow-up statement

000 
WWUS75 KMSO 050421
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
921 PM MST SUN JAN 4 2009


IDZ008-050530-
/O.CAN.KMSO.WI.Y.0002.090105T0600Z-090105T1500Z/
LOWER HELLS CANYON/SALMON RIVER REGION-
821 PM PST SUN JAN 4 2009

...WIND ADVISORY IS CANCELLED...

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

A WINTER WEATHER ADVISORY HAS BEEN ISSUED IN ITS PLACE.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 4, 3:10 AM PST	Winter Storm Warning	MSO	Clearwater, Idaho	41 hr

Nearby

Wind Advisories in Idaho, 2009 Every wind advisory in 2009

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.