Alert archive / Washington / Freezing Rain Advisories in 2014

Freezing Rain Advisory 2, NWS Spokane, WA

November 21, 2014Adams County, Grant County, Washington

NWS Spokane, WA issued this freezing rain advisory at Nov 21, 2014, 4:51 PM PST for Adams County, Grant County, Washington. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Nov 21, 2014, 4:51 PM PST (00:51 UTC)
Expired
Nov 21, 2014, 9:00 PM PST
In force
4 hr
Issued by
NWS Spokane, WA

Counties Adams County, WA, Grant County, WA

The radar

The Spokane radar (KOTX), 123 km from the middle of the area, began a volume at 00:55 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, 0.9 hours before the alert went out and 207 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.

Skew-T log-pSkew-T log-p diagram, Spokane, WA at 00:00Z on 2014-11-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 00:00Z on 2014-11-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 250 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
684 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
250 m²/s²
0-3 km storm-relative helicity
406 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this freezing rain 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 freezing rain advisory went out at Nov 21, 2:43 PM PST, 2 hours 8 minutes earlier.

Area forecast discussion, Nov 21, 2:43 PM PST, 2 hours 8 minutes before
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Hazardous weather outlook, Nov 21, 6:18 AM PST, 10 hours 33 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
618 AM PST FRI NOV 21 2014

IDZ002-003-026-027-WAZ031>036-221430-
COEUR D'ALENE AREA-IDAHO PALOUSE-LEWISTON AREA-
LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS-
LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE-
MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA-
618 AM PST FRI NOV 21 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO...
NORTH CENTRAL IDAHO...EAST CENTRAL WASHINGTON...NORTHEAST
WASHINGTON AND SOUTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

WINDY CONDITIONS ARE EXPECTED TO DEVELOP ON SATURDAY ACROSS MUCH
OF THE AREA. WIND GUSTS OF 40 TO 45 MPH WILL BE POSSIBLE. WET
WEATHER WILL LIKELY PERSIST INTO EARLY NEXT WEEK WITH PERIODS OF
RAIN AND SNOW.

IDZ001-004-WAZ037-038-041>044-221430-
NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-
NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-WENATCHEE AREA-
EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY-WATERVILLE PLATEAU-
618 AM PST FRI NOV 21 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO...
CENTRAL WASHINGTON...NORTH CENTRAL WASHINGTON AND NORTHEAST
WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

A WET WINTER STORM WILL BRING PERIODS OF MODERATE TO HEAVY SNOW TO
THE AREA. THE SNOW WILL BEGIN LATER TODAY AND CONTINUE THROUGH THE
NIGHT. POCKETS OF FREEZING RAIN AND SLEET WILL ALSO BE POSSIBLE
NEAR WENATCHEE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SNOWY WEATHER WILL LIKELY CONTINUE THROUGH SATURDAY NEAR THE
CASCADES AND OVER THE IDAHO PANHANDLE. ANOTHER ROUND OF
SIGNIFICANT SNOW IS EXPECTED OVER THE CASCADES AND IDAHO
PANHANDLE MOUNTAINS ON SUNDAY. ACTIVE WINTER WEATHER WILL LIKELY
CONTINUE AT TIMES THROUGH MIDWEEK...ESPECIALLY NEAR THE CANADIAN
BORDER.

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 22, 8:49 AM PSTWinter Weather AdvisoryOTXBenewah, Kootenai, Latah, Lewis, Nez Perce, Shoshone37 hr

Nearby

Freezing Rain Advisories in Washington, 2014Every freezing rain advisory in 2014

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.