Alert archive / Washington / Special Weather Statements in 2012

Special Weather Statement, NWS Spokane, WA

July 14, 2012Spokane County, Washington

NWS Spokane, WA issued this special weather statement at Jul 14, 2012, 3:15 PM PDT for Spokane County, Washington. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 14, 2012, 3:15 PM PDT (22:15 UTC)
Expired: Jul 14, 2012, 4:00 PM PDT
In force: 45 min
Issued by: NWS Spokane, WA

County Spokane County, WA

The radar

The Spokane radar (KOTX), 31 km from the middle of the area, began a volume at 22:17 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, 10.3 hours before the alert went out and 465 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 92 J/kg
Mixed-layer CIN: -326 J/kg
Mixed-layer LCL: 1845 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 14, 2:25 PM PDT, 50 minutes earlier.

Area forecast discussion, Jul 14, 2:25 PM PDT, 50 minutes before

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Hazardous weather outlook, Jul 14, 1:31 PM PDT, 1 hour 44 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
131 PM PDT SAT JUL 14 2012

IDZ001>004-026-027-WAZ031>038-041>044-152045-
NORTHERN PANHANDLE-COEUR D'ALENE AREA-IDAHO PALOUSE-
CENTRAL PANHANDLE MOUNTAINS-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-
NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-WENATCHEE AREA-
EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY-WATERVILLE PLATEAU-
131 PM PDT SAT JUL 14 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...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 14, 3:15 PM PDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 11:39 PM PDT	Special Weather Statement	OTX	Ferry	51 min
Jul 14, 1:13 AM PDT	Special Weather Statement	OTX	Stevens	32 min
Jul 14, 3:51 PM PDT	Flash Flood Warning	OTX	Spokane	2 hr
Jul 14, 4:20 PM PDT	Areal Flood Advisory	OTX	Douglas	107 min
Jul 13, 9:38 PM PDT	Special Weather Statement	OTX	Boundary	52 min
Jul 13, 10:27 PM PDT	Special Weather Statement	OTX	Boundary	48 min
Jul 13, 11:31 PM PDT	Special Weather Statement	OTX	Boundary	44 min
Jul 14, 12:58 AM PDT	Special Weather Statement	OTX	Boundary	62 min
Jul 14, 4:08 PM PDT	Special Weather Statement	OTX	Kootenai	37 min
Jul 14, 4:43 PM PDT	Special Weather Statement	OTX	Kootenai	47 min

Nearby

Special Weather Statements in Washington, 2012 Every special weather statement 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.