Alert archive / Montana / Wind Advisories in 2013

Wind Advisory 2, NWS Missoula, MT

April 12, 2013Lemhi County, Idaho; 6 counties in Montana

NWS Missoula, MT issued this wind advisory at Apr 12, 2013, 10:18 AM MDT for Lemhi County, Idaho; 6 counties in Montana. It took effect at Apr 13, 2013, 12:00 PM MDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Apr 12, 2013, 10:18 AM MDT (16:18 UTC)
In effect from
Apr 13, 2013, 12:00 PM MDT
Expired
Apr 13, 2013, 8:51 PM MDT
In force
9 hr
Issued by
NWS Missoula, MT

Counties Lemhi County, ID, Deer Lodge County, MT, Granite County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Silver Bow County, MT

The radar

The Missoula radar (KMSX), 104 km from the middle of the area, began a volume at 16:19 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, 4.3 hours before the alert went out and 258 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 2013-04-12Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Great_falls, MT at 12:00Z on 2013-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
568 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
130 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.

532 
WWUS75 KMSO 121618
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1018 AM MDT FRI APR 12 2013

MTZ007-131200-
/O.NEW.KMSO.WI.Y.0002.130413T1800Z-130414T0300Z/
BUTTE/BLACKFOOT REGION-
1018 AM MDT FRI APR 12 2013

...WIND ADVISORY IN EFFECT FROM NOON TO 9 PM MDT SATURDAY...

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

* IMPACTS/TIMING: STRONG AND GUSTY WEST WINDS WILL DEVELOP BY
  MIDDAY SATURDAY AND CONTINUE THROUGH SATURDAY EVENING.
  SIGNIFICANT CROSSWINDS WILL BE PARTICULARLY HAZARDOUS FOR HIGH-
  PROFILE VEHICLES.

* WINDS: WEST WINDS 25 TO 35 MPH GUSTING TO 50 MPH.

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

&&

$$

MTZ005-131200-
/O.NEW.KMSO.WI.Y.0002.130413T1800Z-130414T0300Z/
MISSOULA/BITTERROOT VALLEYS-
1018 AM MDT FRI APR 12 2013

...WIND ADVISORY IN EFFECT FROM NOON TO 9 PM MDT SATURDAY...

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

* IMPACTS/TIMING: STRONG AND GUSTY WEST WINDS WILL DEVELOP BY
  MIDDAY SATURDAY AND CONTINUE THROUGH SATURDAY EVENING.
  SIGNIFICANT CROSSWINDS WILL BE PARTICULARLY HAZARDOUS FOR HIGH-
  PROFILE VEHICLES.

* WINDS: WEST WINDS 20 TO 30 MPH GUSTING TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA

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.

&&

$$

MTZ003-131200-
/O.CON.KMSO.LW.Y.0002.130413T1200Z-130414T0300Z/
FLATHEAD/MISSION VALLEYS-
1018 AM MDT FRI APR 12 2013

...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 6 AM TO 9 PM MDT
SATURDAY...

A LAKE WIND ADVISORY REMAINS IN EFFECT FROM 6 AM TO 9 PM MDT
SATURDAY. 

* IMPACTS/TIMING: WINDS ON FLATHEAD LAKE WILL CREATE CHOPPY 
  CONDITIONS EARLY SATURDAY MORNING THROUGH SATURDAY EVENING. 

* WINDS: SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH IN 
  THE AFTERNOON. 

* WAVE HEIGHTS: 2 TO 3 FEET... LOCALLY UP TO 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.

&&

$$
3 follow-up statements
130 
WWUS75 KMSO 130924
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
324 AM MDT SAT APR 13 2013

IDZ010-132100-
/O.EXA.KMSO.WI.Y.0002.130413T1800Z-130414T0300Z/
EASTERN LEMHI COUNTY-
324 AM MDT SAT APR 13 2013

...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 AND GUSTY WINDS WILL DEVELOP BY MIDDAY
  AND CONTINUE THROUGH THIS EVENING. SIGNIFICANT CROSSWINDS WILL
  BE PARTICULARLY HAZARDOUS FOR HIGH-PROFILE VEHICLES.

* WINDS: WEST 25 TO 35 MPH WITH GUSTS TO 50 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.

&&

$$

MTZ007-132100-
/O.CON.KMSO.WI.Y.0002.130413T1800Z-130414T0300Z/
BUTTE/BLACKFOOT REGION-
324 AM MDT SAT APR 13 2013

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

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

* IMPACTS/TIMING: STRONG AND GUSTY WINDS WILL DEVELOP BY MIDDAY
  AND CONTINUE THROUGH THIS EVENING. SIGNIFICANT CROSSWINDS WILL
  BE PARTICULARLY HAZARDOUS FOR HIGH-PROFILE VEHICLES.

* WINDS: WEST 25 TO 35 MPH WITH GUSTS TO 50 MPH.

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


&&

$$

MTZ005-132100-
/O.CON.KMSO.WI.Y.0002.130413T1800Z-130414T0300Z/
MISSOULA/BITTERROOT VALLEYS-
324 AM MDT SAT APR 13 2013

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

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

* IMPACTS/TIMING: STRONG AND GUSTY WINDS WILL DEVELOP BY MIDDAY
  AND CONTINUE THROUGH THIS EVENING. SIGNIFICANT CROSSWINDS WILL
  BE PARTICULARLY HAZARDOUS FOR HIGH-PROFILE VEHICLES.

* WINDS: WEST 20 TO 30 MPH WITH GUSTS TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA

&&

$$

MTZ003-132100-
/O.CON.KMSO.LW.Y.0002.130413T1200Z-130414T0300Z/
FLATHEAD/MISSION VALLEYS-
324 AM MDT SAT APR 13 2013

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

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

* IMPACTS/TIMING: STRONG WINDS WILL CREATE CHOPPY CONDITIONS
  ON FLATHEAD LAKE THROUGH THIS EVENING.

* WINDS: SOUTHWEST 15 TO 25 MPH WITH GUSTS TO 35 MPH.

* WAVE HEIGHTS: 2 TO 3 FEET...AS HIGH AS 4 FEET ALONG THE EAST
  SHORES.

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

&&

$$
969 
WWUS75 KMSO 132015
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
215 PM MDT SAT APR 13 2013

MTZ007-140300-
/O.CON.KMSO.WI.Y.0002.000000T0000Z-130414T0300Z/
BUTTE/BLACKFOOT REGION-
215 PM MDT SAT APR 13 2013

...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 AND GUSTY WINDS WILL CONTINUE THROUGH
  THIS EVENING. SIGNIFICANT CROSSWINDS WILL BE PARTICULARLY
  HAZARDOUS FOR HIGH-PROFILE VEHICLES.

* WINDS: WEST 25 TO 35 MPH WITH GUSTS TO 50 MPH.

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

$$

MTZ005-140300-
/O.CON.KMSO.WI.Y.0002.000000T0000Z-130414T0300Z/
MISSOULA/BITTERROOT VALLEYS-
215 PM MDT SAT APR 13 2013

...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 AND GUSTY WINDS WILL CONTINUE THROUGH
  THIS EVENING. SIGNIFICANT CROSSWINDS WILL BE PARTICULARLY
  HAZARDOUS FOR HIGH-PROFILE VEHICLES.

* WINDS: WEST 20 TO 30 MPH WITH GUSTS TO 45 MPH.

* LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA

$$

IDZ010-140300-
/O.CON.KMSO.WI.Y.0002.000000T0000Z-130414T0300Z/
EASTERN LEMHI COUNTY-
215 PM MDT SAT APR 13 2013

...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 AND GUSTY WINDS WILL CONTINUE THROUGH
  THIS EVENING. SIGNIFICANT CROSSWINDS WILL BE PARTICULARLY
  HAZARDOUS FOR HIGH-PROFILE VEHICLES.

* WINDS: WEST 25 TO 35 MPH WITH GUSTS TO 50 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.

&&

$$

MTZ003-140300-
/O.CON.KMSO.LW.Y.0002.000000T0000Z-130414T0300Z/
FLATHEAD/MISSION VALLEYS-
215 PM MDT SAT APR 13 2013

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

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

* IMPACTS/TIMING: STRONG WINDS WILL CREATE CHOPPY CONDITIONS ON 
  FLATHEAD LAKE THROUGH THIS EVENING. 

* WINDS: SOUTHWEST 15 TO 25 MPH WITH GUSTS TO 35 MPH.

* WAVE HEIGHTS: 2 TO 3 FEET...AS HIGH AS 4 FEET ALONG THE EAST 
  SHORES. 

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

$$
436 
WWUS75 KMSO 140251
NPWMSO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
851 PM MDT SAT APR 13 2013


IDZ010-MTZ005-007-140400-
/O.CAN.KMSO.WI.Y.0002.000000T0000Z-130414T0300Z/
EASTERN LEMHI COUNTY-MISSOULA/BITTERROOT VALLEYS-
BUTTE/BLACKFOOT REGION-
851 PM MDT SAT APR 13 2013

...WIND ADVISORY IS CANCELLED...

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



$$

MTZ003-140400-
/O.CAN.KMSO.LW.Y.0002.000000T0000Z-130414T0300Z/
FLATHEAD/MISSION VALLEYS-
851 PM MDT SAT APR 13 2013

...LAKE WIND ADVISORY IS CANCELLED...

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



$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 10:33 AM MDTWinter Weather AdvisoryMSOIdaho, Lemhi25 hr
Apr 12, 9:35 AM MDTLake Wind AdvisoryMSOFlathead, Lake, Sanders35 hr

Nearby

Wind Advisories in Montana, 2013Wind Advisories in Idaho, 2013Every wind advisory in 2013

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.