Alert archive / Washington / Winter Weather Advisories in 2012
Winter Weather Advisory 2, NWS Spokane, WA
NWS Spokane, WA issued this winter weather advisory at Jan 16, 2012, 3:30 PM PST for 5 counties in Washington; 5 counties in Idaho. It took effect at Jan 16, 2012, 4:00 PM PST. It was in force for 30 hr.
The area
The counties it named.
The facts
- Issued
- Jan 16, 2012, 3:30 PM PST (23:30 UTC)
- In effect from
- Jan 16, 2012, 4:00 PM PST
- Expired
- Jan 17, 2012, 10:00 PM PST
- In force
- 30 hr
- Issued by
- NWS Spokane, WA
Counties Benewah County, ID, Bonner County, ID, Boundary County, ID, Kootenai County, ID, Latah County, ID, Lincoln County, WA, Pend Oreille County, WA, Spokane County, WA, Stevens County, WA, Whitman County, WA
The radar
The Spokane radar (KOTX), 36 km from the middle of the area, began a volume at 23:34 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, 11.5 hours before the alert went out and 58 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
- 716 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 43 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 weather advisory 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 weather advisory went out at Jan 16, 2:52 PM PST, 38 minutes earlier.
Area forecast discussion, Jan 16, 2:52 PM PST, 38 minutes before
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</html>Hazardous weather outlook, Jan 16, 6:21 AM PST, 9 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPOKANE WA 621 AM PST MON JAN 16 2012 IDZ003-004-027-WAZ033-171430- IDAHO PALOUSE-CENTRAL PANHANDLE MOUNTAINS- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-WASHINGTON PALOUSE- 621 AM PST MON JAN 16 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO... NORTH CENTRAL IDAHO AND SOUTHEAST WASHINGTON. .DAY ONE...TODAY AND TONIGHT SCATTERED LOCALLY HEAVY SNOW ACCUMULATIONS WILL BECOME ISOLATED THIS MORNING...BUT LINGER THE LONGEST IN THE CENTRAL IDAHO PANHANDLE MOUNTAINS. A WINTER WEATHER ADVISORY REMAINS IN EFFECT TO ACCOUNT FOR THIS SNOW THREAT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY ANOTHER WEATHER DISTURBANCE WILL BRING MORE SNOW ON TUESDAY...THEN FOLLOWED BY A MORE POTENT SNOW PRODUCING STORM WEDNESDAY. THE THREAT FOR ADDITIONAL SNOW WILL CONTINUE UNTIL THE END OF THE WEEK...THOUGH IT APPEARS THAT SNOW LEVELS WILL RISE HIGH ENOUGH BEGINNING THURSDAY TO KEEP ANY SUBSEQUENT SNOWFALL LIMITED TO THE MOUNTAINS. WINTER STORM WATCHES HAVE BEEN ISSUED TO ACCOUNT FOR THESE LATEST HEAVY SNOW THREATS. IDZ001-002-026-WAZ031-032-034>038-041>044-171430- NORTHERN PANHANDLE-COEUR D'ALENE AREA-LEWISTON AREA- NORTHEAST BLUE MOUNTAINS-LOWER GARFIELD AND ASOTIN COUNTIES- MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA- NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-WENATCHEE AREA- EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY-WATERVILLE PLATEAU- 621 AM PST MON JAN 16 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO... NORTH CENTRAL IDAHO...CENTRAL WASHINGTON...EAST CENTRAL WASHINGTON...NORTH CENTRAL WASHINGTON...NORTHEAST WASHINGTON AND SOUTHEAST WASHINGTON. .DAY ONE...TODAY AND TONIGHT HAZARDOUS WEATHER IS NOT EXPECTED TO OCCUR. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY ANOTHER WEATHER DISTURBANCE WILL BRING MORE SNOW ON TUESDAY...AND YET ANOTHER MORE POTENT SNOW PRODUCER IS EXPECTED WEDNESDAY. FREEZING RAIN AND SLEET WILL ALSO BE POSSIBLE WEDNESDAY AND WEDNESDAY NIGHT MAINLY IN THE UPPER COLUMBIA BASIN. THE THREAT FOR ADDITIONAL SNOW WILL CONTINUE UNTIL THE END OF THE WEEK...THOUGH IT APPEARS THAT SNOW LEVELS WILL RISE HIGH ENOUGH BEGINNING THURSDAY TO KEEP ANY SUBSEQUENT SNOWFALL LIMITED TO THE MOUNTAINS. WINTER STORM WATCHES HAVE BEEN ISSUED TO ACCOUNT FOR THESE LATEST HEAVY SNOW AND ICE THREATS.
In the hours before
Local storm report, Jan 16, 11:38 AM PST, 3 hours 52 minutes before
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</html>Local storm report, Jan 16, 12:11 PM PST, 3 hours 19 minutes before
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</html>The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 16, 3:30 PM PST | Winter Storm Warning | OTX | Adams, Asotin, Chelan, Douglas, Garfield, Grant and 4 more | 4 days |
Nearby
Winter Weather Advisories in Washington, 2012Winter Weather Advisories in Idaho, 2012Every winter weather advisory 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.