Alert archive / Idaho / Winter Storm Watches in 2012
Winter Storm Watch 16, NWS Spokane, WA
NWS Spokane, WA issued this winter storm watch at Dec 5, 2012, 3:16 PM PST for Asotin County, Garfield County, Washington; 4 counties in Idaho. It took effect at Dec 6, 2012, 10:00 AM PST. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Dec 5, 2012, 3:16 PM PST (23:16 UTC)
- In effect from
- Dec 6, 2012, 10:00 AM PST
- Expired
- Dec 6, 2012, 3:01 PM PST
- In force
- 5 hr
- Issued by
- NWS Spokane, WA
Counties Benewah County, ID, Kootenai County, ID, Latah County, ID, Shoshone County, ID, Asotin County, WA, Garfield County, WA
The radar
The Spokane radar (KOTX), 103 km from the middle of the area, began a volume at 23:16 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, 11.3 hours before the alert went out and 89 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
- 705 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 212 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 watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Spokane, WA wrote its last area forecast discussion before this winter storm watch went out at Dec 5, 2:37 PM PST, 39 minutes earlier.
Area forecast discussion, Dec 5, 2:37 PM PST, 39 minutes before
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</html>Hazardous weather outlook, Dec 5, 6:00 AM PST, 9 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPOKANE WA 600 AM PST WED DEC 5 2012 IDZ001>004-027-WAZ031-033-036-037-061400- NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE- CENTRAL PANHANDLE MOUNTAINS-LEWIS AND SOUTHERN NEZ PERCE COUNTIES- NORTHEAST BLUE MOUNTAINS-WASHINGTON PALOUSE-SPOKANE AREA- NORTHEAST MOUNTAINS- 600 AM PST WED DEC 5 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO... NORTH CENTRAL IDAHO...NORTHEAST WASHINGTON AND SOUTHEAST WASHINGTON. .DAY ONE...TODAY TONIGHT NO HAZARDOUS WEATHER EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY COOLER TEMPERATURES COMBINED WITH A PAIR OF WEATHER DISTURBANCES WILL BRING A GOOD CHANCE FOR LIGHT TO MODERATE SNOW ON THURSDAY AND FRIDAY. SNOW CAN BE EXPECTED AT ALL ELEVATIONS INCLUDING VALLEYS. THE CENTRAL PANHANDLE MOUNTAINS WILL LIKELY RECEIVE THE HIGHEST SNOW ACCUMULATIONS. THIS WILL IMPACT TRAVEL CONDITIONS ON MOST ROADS INCLUDING INTERSTATE 90 FROM 4TH OF JULY PASS TO LOOKOUT PASS. COLDER TEMPERATURES WILL PERSIST INTO THE WEEKEND. IDZ026-WAZ032-034-035-038-041>044-061400- LEWISTON AREA-LOWER GARFIELD AND ASOTIN COUNTIES-MOSES LAKE AREA- UPPER COLUMBIA BASIN-OKANOGAN HIGHLANDS-WENATCHEE AREA- EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY-WATERVILLE PLATEAU- 600 AM PST WED DEC 5 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL IDAHO...CENTRAL WASHINGTON...EAST CENTRAL WASHINGTON...NORTH CENTRAL WASHINGTON AND SOUTHEAST WASHINGTON. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
Nearby
Winter Storm Watches in Idaho, 2012Winter Storm Watches in Washington, 2012Every winter storm watch in 2012
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.