Alert archive / Idaho / Special Weather Statements in 2014

Special Weather Statement, NWS Missoula, MT

August 12, 2014Clearwater County, Idaho

NWS Missoula, MT issued this special weather statement at Aug 12, 2014, 4:13 PM PDT for Clearwater County, Idaho. It was in force for 62 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: Aug 12, 2014, 4:13 PM PDT (23:13 UTC)
Expired: Aug 12, 2014, 5:15 PM PDT
In force: 62 min
Issued by: NWS Missoula, MT

County Clearwater County, ID

The radar

The Spokane radar (KOTX), 181 km from the middle of the area, began a volume at 23:15 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, 11.2 hours before the alert went out and 149 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3158 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 84 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 Missoula, MT wrote its last area forecast discussion before this special weather statement went out at Aug 12, 1:53 PM PDT, 2 hours 20 minutes earlier.

Area forecast discussion, Aug 12, 1:53 PM PDT, 2 hours 20 minutes before

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In the hours before

Special weather statement, Aug 12, 2:34 PM PDT, 1 hour 39 minutes before

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Special weather statement, Aug 12, 2:58 PM PDT, 1 hour 15 minutes before

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Special weather statement, Aug 12, 3:15 PM PDT, 58 minutes before

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Special weather statement, Aug 12, 3:40 PM PDT, 33 minutes before

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Special weather statement, Aug 12, 4:13 PM PDT, 0 minutes before

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The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 12, 2:53 AM PDT	Red Flag Warning	MSO	Flathead, Glacier, Granite, Lake, Lewis and Clark, Lincoln and 5 more	20 hr
Aug 12, 2:34 PM PDT	Special Weather Statement	MSO		41 min
Aug 12, 2:58 PM PDT	Special Weather Statement	MSO	Idaho	47 min
Aug 12, 3:15 PM PDT	Special Weather Statement	MSO	Lewis	45 min
Aug 12, 3:40 PM PDT	Special Weather Statement	MSO	Idaho	50 min
Aug 12, 4:59 PM PDT	Flash Flood Warning	MSO	Lemhi	3 hr

Nearby

Special Weather Statements in Idaho, 2014 Every special weather statement 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.