Alert archive / Montana / Winter Storm Watches in 2013
Winter Storm Watch 8, NWS Missoula, MT
NWS Missoula, MT issued this winter storm watch at Dec 16, 2013, 2:06 PM MST for Flathead County, Lake County, Sanders County, Montana. It took effect at Dec 18, 2013, 2:00 PM MST. It was in force for 22 min.
The area
The counties it named.
The facts
- Issued
- Dec 16, 2013, 2:06 PM MST (21:06 UTC)
- In effect from
- Dec 18, 2013, 2:00 PM MST
- Expired
- Dec 18, 2013, 2:22 PM MST
- In force
- 22 min
- 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 21:04 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 12:00Z, 9.1 hours before the alert went out and 498 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
- 1023 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
Nearby
Winter Storm Watches in Montana, 2013Every winter storm watch 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.