Alert archive / Oregon / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 48, NWS Pendleton, OR

July 5, 2006Umatilla County, Oregon

NWS Pendleton, OR issued this severe thunderstorm warning at Jul 5, 2006, 7:27 PM PDT for Umatilla County, Oregon. It was in force for 36 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: Jul 5, 2006, 7:27 PM PDT (02:27 UTC)
Expired: Jul 5, 2006, 8:03 PM PDT
In force: 36 min
Issued by: NWS Pendleton, OR
Area: Counties, with a storm outline in the text

County Umatilla County, OR

The radar

The Pendleton radar (KPDT), 14 km from the middle of the area, began a volume at 02:30 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 5, 4:02 PM PDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Spokane, WA (KOTX), launched 00:00Z, 2.5 hours before the alert went out and 295 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: 502 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 2765 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 25 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 Pendleton, OR wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 5, 2:15 PM PDT, 5 hours 12 minutes earlier.

Area forecast discussion, Jul 5, 2:15 PM PDT, 5 hours 12 minutes before

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Hazardous weather outlook, Jul 5, 5:48 PM PDT, 1 hour 39 minutes before

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In the hours before

Local storm report, Jul 5, 5:22 PM PDT, 2 hours 5 minutes before

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Local storm report, Jul 5, 5:27 PM PDT, 2 hours before

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Local storm report, Jul 5, 6:05 PM PDT, 1 hour 22 minutes before

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Local storm report, Jul 5, 6:49 PM PDT, 38 minutes before

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Local storm report, Jul 5, 7:24 PM PDT, 3 minutes before

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The office that day

Everything else NWS Pendleton, OR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 5, 5:07 PM PDT	Severe Thunderstorm Warning	PDT	Umatilla, Union	53 min
Jul 5, 5:50 PM PDT	Severe Thunderstorm Warning	PDT	Crook	55 min
Jul 5, 6:15 PM PDT	Severe Thunderstorm Warning	PDT	Union	60 min
Jul 5, 7:00 PM PDT	Severe Thunderstorm Warning	PDT	Morrow	30 min
Jul 6, 1:40 PM PDT	Severe Thunderstorm Warning	PDT	Union	65 min
Jul 6, 2:57 PM PDT	Severe Thunderstorm Warning	PDT	Union	63 min

Nearby

Severe Thunderstorm Warnings in Oregon, 2006 Every severe thunderstorm warning in 2006

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.