Alert archive / Oregon / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 39, NWS Boise, ID

August 6, 2010Malheur County, Oregon

NWS Boise, ID issued this severe thunderstorm warning at Aug 6, 2010, 6:25 PM MDT for Malheur County, Oregon. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 6, 2010, 6:25 PM MDT (00:25 UTC)
Expired: Aug 6, 2010, 7:15 PM MDT
In force: 50 min
Issued by: NWS Boise, ID
Area: Storm-based polygon

County Malheur County, OR

The radar

The Boise radar (KCBX), 117 km from the middle of the area, began a volume at 00:26 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

Elko, NV (KLKN), launched 00:00Z, 0.4 hours before the alert went out and 383 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: 75 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 4443 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 13 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Boise, ID wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 6, 2:45 PM MDT, 3 hours 40 minutes earlier.

Area forecast discussion, Aug 6, 2:45 PM MDT, 3 hours 40 minutes before

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Hazardous weather outlook, Aug 6, 5:44 AM MDT, 12 hours 41 minutes before

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In the hours before

Special weather statement, Aug 6, 4:33 PM MDT, 1 hour 52 minutes before

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Special weather statement, Aug 6, 5:07 PM MDT, 1 hour 18 minutes before

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Special weather statement, Aug 6, 5:08 PM MDT, 1 hour 17 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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The office that day

Everything else NWS Boise, ID issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 6, 8:00 PM MDT	Special Weather Statement	BOI	Payette	45 min
Aug 6, 8:07 PM MDT	Flash Flood Warning	BOI	Canyon, Gem, Payette, Washington	83 min
Aug 6, 8:44 PM MDT	Flash Flood Watch	BOI	Adams, Boise, Camas, Canyon, Elmore, Gem and 4 more	5 hr
Aug 7, 2:15 PM MDT	Fire Weather Watch	BOI	Adams, Boise, Gem, Idaho, Payette, Valley and 1 more	23 hr
Aug 6, 7:17 PM MDT	Flash Flood Warning	BOI	Malheur	88 min
Aug 6, 8:39 PM MDT	Flash Flood Warning	BOI	Malheur	111 min

Nearby

Severe Thunderstorm Warnings in Oregon, 2010 Every severe thunderstorm warning in 2010

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.