Alert archive / Montana / Wind Advisories in 2016
Wind Advisory 9, NWS Missoula, MT
NWS Missoula, MT issued this wind advisory at Sep 10, 2016, 2:16 PM MDT for Flathead County, Lake County, Sanders County, Montana. It took effect at Sep 11, 2016, 12:00 PM MDT. It was in force for 16 hr.
The area
The counties it named.
The facts
- Issued
- Sep 10, 2016, 2:16 PM MDT (20:16 UTC)
- In effect from
- Sep 11, 2016, 12:00 PM MDT
- Expired
- Sep 12, 2016, 3:46 AM MDT
- In force
- 16 hr
- Issued by
- NWS Missoula, MT
Counties Flathead County, MT, Lake County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 98 km from the middle of the area, began a volume at 20:14 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, 8.3 hours before the alert went out and 149 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2139 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 133 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
476 WWUS75 KMSO 102016 NPWMSO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 216 PM MDT SAT SEP 10 2016 MTZ003-121200- /O.NEW.KMSO.WI.Y.0009.160911T1800Z-160912T1200Z/ FLATHEAD/MISSION VALLEYS- 216 PM MDT SAT SEP 10 2016 ...WIND ADVISORY IN EFFECT FROM NOON SUNDAY TO 6 AM MDT MONDAY... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM NOON SUNDAY TO 6 AM MDT MONDAY. * IMPACTS/TIMING: A COLD FRONT WILL INCREASE WINDS IN THE FLATHEAD VALLEY AROUND NOON SUNDAY, PASSING OVER FLATHEAD LAKE AND INTO THE MISSION VALLEY THROUGH THE AFTERNOON. * WINDS: NORTH TO NORTHEAST WINDS 25 TO 35 MPH WITH GUSTS TO 45 MPH. GUSTS UP OVER 50 MPH POSSIBLE THROUGH EXPOSED AREAS SUCH AS BADROCK CANYON. * FLATHEAD LAKE: WAVES OF 3 TO 4 FEET WILL BE POSSIBLE ON THE SOUTHERN AND WESTERN SHORES, INCREASING BETWEEN 3PM AND 6PM. ALSO EXPECT UNUSUALLY LARGE WAVES IN POLSON BAY. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON $$
2 follow-up statements
595 WWUS75 KMSO 111003 NPWMSO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 403 AM MDT SUN SEP 11 2016 MTZ003-121015- /O.CON.KMSO.WI.Y.0009.160911T1800Z-160912T1200Z/ FLATHEAD/MISSION VALLEYS- 403 AM MDT SUN SEP 11 2016 ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 6 AM MDT MONDAY... * IMPACTS/TIMING: A COLD FRONT WILL INCREASE WINDS IN THE FLATHEAD VALLEY AROUND TODAY... PASSING OVER FLATHEAD LAKE AND INTO THE MISSION VALLEY THROUGH THE EVENING. * WINDS: NORTH TO NORTHEAST WINDS 25 TO 35 MPH WITH GUSTS TO 45 MPH. GUSTS UP OVER 50 MPH POSSIBLE THROUGH EXPOSED AREAS SUCH AS BADROCK CANYON. * FLATHEAD LAKE: WAVES OF 3 TO 4 FEET WILL BE POSSIBLE ON THE SOUTHERN AND WESTERN SHORES... INCREASING BETWEEN 3PM AND 6PM. ALSO EXPECT UNUSUALLY LARGE WAVES IN POLSON BAY. * LOCATIONS IMPACTED INCLUDE...FLATHEAD LAKE...FLATHEAD VALLEY... MISSION VALLEY...POLSON $$
530 WWUS75 KMSO 120946 NPWMSO URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 346 AM MDT MON SEP 12 2016 MTZ003-121100- /O.CAN.KMSO.WI.Y.0009.000000T0000Z-160912T1200Z/ FLATHEAD/MISSION VALLEYS- 346 AM MDT MON SEP 12 2016 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE WIND ADVISORY. $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 2:16 PM MDT | Winter Weather Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Missoula, Powell and 1 more | 42 hr |
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.