Alert archive / Washington / River Flood Watches in 2018

River Flood Watch 1, NWS Spokane, WA

May 3, 2018Okanogan County, Washington

NWS Spokane, WA issued this river flood watch at May 3, 2018, 5:12 AM PDT for Okanogan County, Washington. It took effect at May 5, 2018, 1:54 AM PDT. It was in force for .

The area

The counties it named.

The facts

Issued
May 3, 2018, 5:12 AM PDT (12:12 UTC)
In effect from
May 5, 2018, 1:54 AM PDT
Expired
May 4, 2018, 8:58 AM PDT
In force
Issued by
NWS Spokane, WA
Area
Storm-based polygon
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 12:09 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). The gauge peaked at 15.01 ft at May 5, 2018, 8:00 AM PDT.

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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.

Nearby

River Flood Watches in Washington, 2018Every river flood watch in 2018

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.