Alert archive / Washington / River Flood Watches in 2011

River Flood Watch 6, NWS Spokane, WA

May 21, 2011Okanogan County, Washington

NWS Spokane, WA issued this river flood watch at May 21, 2011, 6:03 AM PDT for Okanogan County, Washington. It took effect at May 22, 2011, 9:48 PM PDT. It was in force for .

The area

The counties it named.

The facts

Issued: May 21, 2011, 6:03 AM PDT (13:03 UTC)
In effect from: May 22, 2011, 9:48 PM PDT
Expired: May 21, 2011, 10:51 PM PDT
In force
Issued by: NWS Spokane, WA
Flood severity: None

County Okanogan County, WA

The radar

The Spokane radar (KOTX), 184 km from the middle of the area, began a volume at 13:03 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 river

Written for the forecast point Okanogan River near Tonasket (TONW1).

Action stage: 14 ft
Minor stage: 15 ft
Moderate stage: 17 ft
Major stage: 18 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12445000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Spokane, WA wrote its last area forecast discussion before this river flood watch went out at May 21, 5:05 AM PDT, 58 minutes earlier.

Area forecast discussion, May 21, 5:05 AM PDT, 58 minutes before

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Nearby

River Flood Watches in Washington, 2011 Every river flood watch in 2011

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; the gauge from the NWS water service and the USGS.