Alert archive / Idaho / Wind Advisories in 2011

Wind Advisory 16, NWS Missoula, MT

June 29, 2011Lemhi County, Idaho

NWS Missoula, MT issued this wind advisory at Jun 29, 2011, 3:21 AM MDT for Lemhi County, Idaho. It took effect at Jun 29, 2011, 12:00 PM MDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jun 29, 2011, 3:21 AM MDT (09:21 UTC)
In effect from
Jun 29, 2011, 12:00 PM MDT
Expired
Jun 29, 2011, 9:00 PM MDT
In force
9 hr
Issued by
NWS Missoula, MT

County Lemhi County, ID

The radar

The Pocatello radar (KSFX), 227 km from the middle of the area, began a volume at 09:22 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 00:00Z, 9.4 hours before the alert went out and 236 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, Boise Airport, ID at 00:00Z on 2011-06-29Temperature 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, Boise Airport, ID at 00:00Z on 2011-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
3408 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
194 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.

003 
WWUS75 KMSO 290921
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
321 AM MDT WED JUN 29 2011


IDZ010-292100-
/O.NEW.KMSO.WI.Y.0016.110629T1800Z-110630T0300Z/
EASTERN LEMHI COUNTY-
321 AM MDT WED JUN 29 2011

...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING. 


* IMPACTS/TIMING: STRONG WINDS WILL INCREASE ACROSS PORTIONS OF
  EASTERN LEMHI COUNTY THIS AFTERNOON THROUGH EARLY THIS EVENING.
  HIGH PROFILE VEHICLES WILL WANT TO EXERCISE CAUTION WHILE
  DRIVING THIS AFTERNOON AND EVENING. 

* WINDS: SOUTH TO SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS OVER
  40 MPH.

* LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY TO
  LONE PINE...LEMHI PASS...

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.

&&

$$
3 follow-up statements
740 
WWUS75 KMSO 291804
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1204 PM MDT WED JUN 29 2011

MTZ003-300215-
/O.NEW.KMSO.LW.Y.0008.110629T2000Z-110630T0400Z/
FLATHEAD/MISSION VALLEYS-
1204 PM MDT WED JUN 29 2011

...LAKE WIND ADVISORY IN EFFECT UNTIL 10 PM MDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A LAKE WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 10 PM MDT THIS EVENING. 

* IMPACTS/TIMING: INCREASING SOUTHERLY WINDS ACROSS FLATHEAD LAKE
  THIS AFTERNOON WILL CREATE CHOPPY SURFACE CONDITIONS WHICH ARE
  EXPECTED TO CONTINUE THROUGH THE EVENING HOURS. IN ADDITION...
  ISOLATED THUNDERSTORMS WILL BE DEVELOPING TODAY PRODUCING BRIEF
  HEAVY RAIN AND GUSTY ERRATIC WINDS.

* WINDS: INCREASING SOUTH 15 TO 25 MPH WITH GUSTS UP TO 35 MPH ARE
  EXPECTED THIS AFTERNOON THROUGH THE EVENING HOURS.

* WAVE HEIGHTS: 1 TO 3 FEET WITH AN OCCASIONAL WAVE HEIGHT OF 4
  FEET.

* LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY...
   MISSION VALLEY...POLSON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP
ON THE LAKE. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING.

NOTE...THE EXPERIMENTAL WAVE HEIGHT FORECASTS ARE REPRESENTATIVE
OF THE MID LAKE WATERS AND DOWNWIND SHORES. WAVE HEIGHTS MAY BE
SIGNIFICANTLY LESS ON UPWIND SHORES.

&&

$$

IDZ010-300215-
/O.CON.KMSO.WI.Y.0016.000000T0000Z-110630T0300Z/
EASTERN LEMHI COUNTY-
1204 PM MDT WED JUN 29 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING. 

* IMPACTS/TIMING: STRONG WINDS WILL INCREASE ACROSS PORTIONS OF 
  EASTERN LEMHI COUNTY THIS AFTERNOON THROUGH EARLY THIS 
  EVENING. HIGH PROFILE VEHICLES WILL WANT TO EXERCISE CAUTION 
  WHILE DRIVING THIS AFTERNOON AND EVENING. 

* WINDS: SOUTH TO SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS 
  OVER 40 MPH. 

* LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY 
  TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...
  LEMHI PASS...SALMON

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.

&&

$$
534 
WWUS75 KMSO 300027
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
627 PM MDT WED JUN 29 2011

MTZ003-300130-
/O.CAN.KMSO.LW.Y.0008.000000T0000Z-110630T0400Z/
FLATHEAD/MISSION VALLEYS-
627 PM MDT WED JUN 29 2011

...LAKE WIND ADVISORY IS CANCELLED...

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

WINDS FROM EARLIER THUNDERSTORMS HAVE DIMINISHED AROUND FLATHEAD
LAKE. WAVES WILL DIMINISH DURING THE REMAINDER OF THIS EVENING AS
WELL.

$$

IDZ010-300300-
/O.CON.KMSO.WI.Y.0016.000000T0000Z-110630T0300Z/
EASTERN LEMHI COUNTY-
627 PM MDT WED JUN 29 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING. 

* IMPACTS/TIMING: STRONG WINDS WILL INCREASE ACROSS PORTIONS OF 
  EASTERN LEMHI COUNTY THIS AFTERNOON THROUGH EARLY THIS 
  EVENING. HIGH PROFILE VEHICLES WILL WANT TO EXERCISE CAUTION 
  WHILE DRIVING THIS AFTERNOON AND EVENING. 

* WINDS: SOUTH TO SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS 
  OVER 40 MPH. 

* LOCATIONS IMPACTED INCLUDE...BANNOCK PASS...HIGHWAY 28 TENDOY 
  TO LONE PINE...HIGHWAY 93 LOST TRAIL PASS TO GIBBONSVILLE...
  LEMHI PASS...SALMON

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.

&&

$$
754 
WWUS75 KMSO 300236
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
836 PM MDT WED JUN 29 2011


IDZ010-300345-
/O.EXP.KMSO.WI.Y.0016.000000T0000Z-110630T0300Z/
EASTERN LEMHI COUNTY-
836 PM MDT WED JUN 29 2011

...WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING...

THE WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING. 

WINDS ARE AND WILL CONTINUE TO DECREASE THIS EVENING SO THE WIND
ADVISORY HAS BEEN ALLOWED TO EXPIRE.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 8:40 AM MDTAreal Flood WarningMSOLemhi21 hr

Nearby

Wind Advisories in Idaho, 2011Every wind advisory 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.