Alert archive / Montana / Winter Storm Warnings in 2010
Winter Storm Warning 30, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Nov 15, 2010, 4:42 AM MST for 5 counties in Montana. It took effect at Nov 15, 2010, 5:00 PM MST. It was in force for 21 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 15, 2010, 4:42 AM MST (11:42 UTC)
- In effect from
- Nov 15, 2010, 5:00 PM MST
- Expired
- Nov 16, 2010, 1:41 PM MST
- In force
- 21 hr
- Issued by
- NWS Missoula, MT
Counties Flathead County, MT, Granite County, MT, Lake County, MT, Missoula County, MT, Ravalli County, MT
The radar
The Missoula radar (KMSX), 7 km from the middle of the area, began a volume at 11:47 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 00:00Z, 11.7 hours before the alert went out and 198 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 576 m above ground
- 0-6 km bulk shear
- 91 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 269 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this winter storm warning went out at Nov 15, 4:38 AM MST, 4 minutes earlier.
Area forecast discussion, Nov 15, 4:38 AM MST, 4 minutes before
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</html>The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 15, 11:38 AM MST | High Wind Warning | MSO | Deer Lodge, Granite, Missoula, Powell, Ravalli, Silver Bow | 20 hr |
| Nov 15, 11:38 AM MST | Wind Advisory | MSO | Clearwater, Idaho | 20 hr |
Nearby
Winter Storm Warnings in Montana, 2010Every winter storm warning in 2010
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.