Alert archive / Oregon / Mesoscale Discussions in 2004

Mesoscale Discussion 1882

August 4, 200414 counties in Oregon; 4 counties in Washington

The Storm Prediction Center issued this mesoscale discussion at Aug 4, 2004, 12:21 PM PDT for 14 counties in Oregon; 4 counties in Washington. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued: Aug 4, 2004, 12:21 PM PDT (19:21 UTC)
Expired: Aug 4, 2004, 2:15 PM PDT
In force: 114 min
Issued by: the Storm Prediction Center

Counties Baker County, OR, Crook County, OR, Deschutes County, OR, Gilliam County, OR, Grant County, OR, Jefferson County, OR, Klamath County, OR, Lake County, OR, Morrow County, OR, Sherman County, OR, Umatilla County, OR, Union County, OR, Wasco County, OR, Wheeler County, OR, Benton County, WA, Columbia County, WA, Klickitat County, WA, Walla Walla County, WA

The radar

The Pendleton radar (KPDT), 121 km from the middle of the area, began a volume at 19:22 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 709Aug 4, 12:30 PM PDT

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 4, 12:30 PM PDT	Severe Thunderstorm Watch	SPC	Crook, Deschutes, Gilliam, Grant, Jefferson, Morrow and 4 more	8 hr
Aug 4, 4:43 PM PDT	Mesoscale Discussion	SPC	Baker, Crook, Deschutes, Gilliam, Grant, Jefferson and 7 more	62 min

Nearby

Mesoscale Discussions in Oregon, 2004 Mesoscale Discussions in Washington, 2004 Every mesoscale discussion in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.