Alert archive / Idaho / Fire Weather Watches in 2012

Fire Weather Watch 7, NWS Spokane, WA

September 30, 20125 counties in Idaho

NWS Spokane, WA issued this fire weather watch at Sep 30, 2012, 3:24 PM PDT for 5 counties in Idaho. It took effect at Oct 1, 2012, 11:00 PM PDT. It was in force for .

The area

The counties it named.

The facts

Issued
Sep 30, 2012, 3:24 PM PDT (22:24 UTC)
In effect from
Oct 1, 2012, 11:00 PM PDT
Expired
Oct 1, 2012, 3:12 PM PDT
In force
Issued by
NWS Spokane, WA

Counties Benewah County, ID, Bonner County, ID, Boundary County, ID, Kootenai County, ID, Shoshone County, ID

The radar

The Spokane radar (KOTX), 89 km from the middle of the area, began a volume at 22:23 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

Great_falls, MT (KTFX), launched 12:00Z, 10.4 hours before the alert went out and 441 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, Great_falls, MT at 12:00Z on 2012-09-30Temperature 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, Great_falls, MT at 12:00Z on 2012-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
2226 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
47 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 fire weather 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 fire weather watch went out at Sep 30, 2:35 PM PDT, 49 minutes earlier.

Area forecast discussion, Sep 30, 2:35 PM PDT, 49 minutes before
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Hazardous weather outlook, Sep 30, 5:46 AM PDT, 9 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
546 AM PDT SUN SEP 30 2012

IDZ001>004-026-027-WAZ031>033-036>038-042-011300-
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-
SPOKANE AREA-NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-
EAST SLOPES NORTHERN CASCADES-
546 AM PDT SUN SEP 30 2012

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

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A STRONG COLD FRONT PASSAGE MONDAY NIGHT AND TUESDAY WILL BRING
THE LIKELIHOOD FOR GUSTY NORTHERLY WINDS AND AUTUMN-LIKE
TEMPERATURES. WIND GUSTS IN EXCESS OF 40 MPH WILL BE POSSIBLE ON
TUESDAY...ESPECIALLY ALONG EXPOSED RIDGETOPS AND THROUGHOUT NORTH TO
SOUTH ORIENTED VALLEYS.

WAZ034-035-041-043-044-011300-
MOSES LAKE AREA-UPPER COLUMBIA BASIN-WENATCHEE AREA-
OKANOGAN VALLEY-WATERVILLE PLATEAU-
546 AM PDT SUN SEP 30 2012

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

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A STRONG COLD FRONT PASSAGE MONDAY NIGHT THROUGH TUESDAY WILL
BRING THE LIKELIHOOD FOR STRONG NORTHERLY WINDS AND AUTUMN-LIKE
TEMPERATURES. WIND GUSTS NEAR 50 MPH WILL BE POSSIBLE THROUGH THE
OKANOGAN VALLEY...WATERVILLE PLATEAU...AND WESTERN COLUMBIA BASIN.
IN ADDITION TO DANGEROUS FIRE WEATHER CONDITIONS...AREAS OF
BLOWING DUST MAY CAUSE REDUCTIONS IN VISIBILITIES POTENTIALLY
IMPACTING TRAVEL ALONG AREA ROADWAYS.

Nearby

Fire Weather Watches in Idaho, 2012Fire Weather Watches in Washington, 2012Every fire weather 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.