Alert archive / Idaho / Special Weather Statements in 2015

Special Weather Statement, NWS Missoula, MT

May 31, 2015Clearwater County, Idaho

NWS Missoula, MT issued this special weather statement at May 31, 2015, 7:07 PM PDT for Clearwater County, Idaho. It was in force for 38 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: May 31, 2015, 7:07 PM PDT (02:07 UTC)
Expired: May 31, 2015, 7:45 PM PDT
In force: 38 min
Issued by: NWS Missoula, MT

County Clearwater County, ID

The radar

The Spokane radar (KOTX), 156 km from the middle of the area, began a volume at 02:10 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, 2.1 hours before the alert went out and 123 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: 3012 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 107 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 May 31, 2:04 PM PDT, 5 hours 3 minutes earlier.

Area forecast discussion, May 31, 2:04 PM PDT, 5 hours 3 minutes before

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In the hours before

Local storm report, May 31, 6:09 PM PDT, 58 minutes before

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Local storm report, May 31, 6:11 PM PDT, 56 minutes before

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Special weather statement, May 31, 6:23 PM PDT, 44 minutes before

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Special weather statement, May 31, 6:54 PM PDT, 13 minutes before

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Local storm report, May 31, 7:01 PM PDT, 6 minutes before

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Special weather statement, May 31, 7:07 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
May 31, 5:06 PM PDT	Special Weather Statement	MSO	Missoula	24 min
May 31, 5:45 PM PDT	Special Weather Statement	MSO	Missoula	30 min
May 31, 6:23 PM PDT	Special Weather Statement	MSO	Powell	37 min
May 31, 6:54 PM PDT	Special Weather Statement	MSO	Powell	21 min
Jun 1, 8:09 AM PDT	Flash Flood Watch	MSO	Flathead, Lake, Lincoln, Sanders	22 min
Jun 1, 8:34 AM PDT	Flash Flood Watch	MSO	Flathead	22 hr
Jun 1, 1:12 PM PDT	Special Weather Statement	MSO		48 min
Jun 1, 2:00 PM PDT	Special Weather Statement	MSO	Missoula	45 min
Jun 1, 2:11 PM PDT	Special Weather Statement	MSO	Sanders	34 min
Jun 1, 2:27 PM PDT	Special Weather Statement	MSO	Lake	33 min
Jun 1, 2:41 PM PDT	Areal Flood Advisory	MSO	Sanders	64 min
Jun 1, 3:56 PM PDT	Special Weather Statement	MSO	Lake	64 min
May 31, 7:44 PM PDT	Special Weather Statement	MSO	Clearwater	46 min
May 31, 8:11 PM PDT	Special Weather Statement	MSO	Clearwater	34 min
May 31, 8:40 PM PDT	Special Weather Statement	MSO	Lewis	35 min
May 31, 9:20 PM PDT	Special Weather Statement	MSO	Clearwater	40 min
May 31, 10:09 PM PDT	Special Weather Statement	MSO	Lewis	81 min
Jun 1, 1:36 PM PDT	Severe Thunderstorm Warning	MSO	Lemhi	24 min

Nearby

Special Weather Statements in Idaho, 2015 Every special weather statement in 2015

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.