Alert archive / Montana / Wind Advisories in 2012
Wind Advisory 17, NWS Missoula, MT
NWS Missoula, MT issued this wind advisory at Apr 26, 2012, 8:12 AM MDT for 9 counties in Montana. It took effect at Apr 26, 2012, 4:00 PM MDT. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Apr 26, 2012, 8:12 AM MDT (14:12 UTC)
- In effect from
- Apr 26, 2012, 4:00 PM MDT
- Expired
- Apr 26, 2012, 6:21 PM MDT
- In force
- 2 hr
- Issued by
- NWS Missoula, MT
Counties Deer Lodge County, MT, Flathead County, MT, Granite County, MT, Lake County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Sanders County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 27 km from the middle of the area, began a volume at 14:15 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 12:00Z, 2.2 hours before the alert went out and 222 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.
- Mixed-layer CAPE
- 18 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 753 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 214 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
366 WWUS75 KMSO 261412 NPWMSO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 812 AM MDT THU APR 26 2012 MTZ003-270600- /O.NEW.KMSO.WI.Y.0017.120426T2200Z-120427T1000Z/ FLATHEAD/MISSION VALLEYS- 812 AM MDT THU APR 26 2012 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM MDT FRIDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM MDT FRIDAY. * IMPACTS/TIMING: WINDS WILL INCREASE LATE THIS AFTERNOON AND EARLY THIS EVENING WITH A COLD FRONT. STRONG WINDS WILL CONTINUE INTO THE EARLY MORNING HOURS BEHIND THE FRONT. WAVES ON FLATHEAD LAKE COULD REACH 3 FEET THIS EVENING. * WINDS: WESTERLY WINDS 25 MPH WITH GUSTS OVER 40 MPH. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON 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. && $$ MTZ005-270600- /O.NEW.KMSO.WI.Y.0017.120426T2200Z-120427T1000Z/ MISSOULA/BITTERROOT VALLEYS- 812 AM MDT THU APR 26 2012 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM MDT FRIDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM MDT FRIDAY. * IMPACTS/TIMING: WINDS WILL INCREASE LATE THIS AFTERNOON AND EARLY THIS EVENING WITH A COLD FRONT. STRONG WINDS WILL CONTINUE INTO THE EARLY MORNING HOURS BEHIND THE FRONT. CROSSWINDS ON HIGHWAY 93 WILL MAKE DRIVING DIFFICULT AT TIMES. LOOSE OBJECTS OUTDOORS SHOULD BE SECURED BY LATE THIS AFTERNOON. * WINDS: WESTERLY WINDS 25 MPH WITH GUSTS OVER 40 MPH. * LOCATIONS IMPACTED INCLUDE...BITTERROOT VALLEY...MISSOULA PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ MTZ007-270600- /O.NEW.KMSO.WI.Y.0017.120426T2200Z-120427T1000Z/ BUTTE/BLACKFOOT REGION- 812 AM MDT THU APR 26 2012 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM MDT FRIDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM MDT FRIDAY. * IMPACTS/TIMING: WINDS WILL INCREASE LATE THIS AFTERNOON AND EARLY THIS EVENING WITH A COLD FRONT. STRONG WINDS WILL CONTINUE INTO THE EARLY MORNING HOURS BEHIND THE FRONT. CROSSWINDS ON INTERSTATE 90 FROM GARRISON JUNCTION TO BUTTE WILL MAKE DRIVING DIFFICULT AT TIMES. LOOSE OBJECTS OUTDOORS SHOULD BE SECURED BY LATE THIS AFTERNOON. * WINDS: WESTERLY WINDS 25 MPH WITH GUSTS OVER 40 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. && $$
1 follow-up statement
466 WWUS75 KMSO 270021 NPWMSO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 621 PM MDT THU APR 26 2012 MTZ003-005-007-270130- /O.CAN.KMSO.WI.Y.0017.000000T0000Z-120427T1000Z/ FLATHEAD/MISSION VALLEYS-MISSOULA/BITTERROOT VALLEYS- BUTTE/BLACKFOOT REGION- 621 PM MDT THU APR 26 2012 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WIND ADVISORY. THE COLD FRONT THAT PROMPTED THE WIND ADVISORY HAS PUSHED EAST OF THE CONTINENTAL DIVIDE. WINDS BEHIND THE FRONT ARE BREEZY...BUT LOWER THAN PREVIOUSLY FORECAST. THEREFORE THE WIND ADVISORY HAS BEEN CANCELLED. $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 9:56 AM MDT | Winter Weather Advisory | MSO | Flathead, Lake | 32 hr |
| Apr 26, 11:11 AM MDT | Areal Flood Warning | MSO | Ravalli | 48 hr |
| Apr 26, 11:17 AM MDT | Areal Flood Warning | MSO | Ravalli | 47 hr |
| Apr 26, 11:23 AM MDT | Areal Flood Warning | MSO | Missoula | 55 hr |
| Apr 26, 2:11 PM MDT | Special Weather Statement | MSO | Ravalli | 64 min |
| Apr 26, 3:00 PM MDT | Special Weather Statement | MSO | Ravalli | 60 min |
| Apr 26, 4:15 PM MDT | Special Weather Statement | MSO | Lake, Powell | 45 min |
Nearby
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.