Alert archive / Washington / River Flood Watches in 2020

River Flood Watch 9, NWS Spokane, WA

May 29, 2020Okanogan County, Washington

NWS Spokane, WA issued this river flood watch at May 29, 2020, 5:27 PM PDT for Okanogan County, Washington. It took effect at Jun 1, 2020, 12:50 AM PDT. It was in force for .

The area

The counties it named.

The facts

Issued
May 29, 2020, 5:27 PM PDT (00:27 UTC)
In effect from
Jun 1, 2020, 12:50 AM PDT
Expired
May 31, 2020, 12:46 PM 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 00:28 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 15.53 ft at Jun 1, 2020, 12:00 PM PDT.

actionminormoderatemajor14161805/2905/3005/3106/01
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 29, 4:53 PM PDT, 34 minutes earlier.

Area forecast discussion, May 29, 4:53 PM PDT, 34 minutes before
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The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 29, 5:27 PM PDTRiver Flood WatchOTXFerry53 hr
May 30, 6:17 AM PDTSpecial Weather StatementOTXAdams43 min
May 30, 7:03 AM PDTSpecial Weather StatementOTXAdams42 min
May 30, 7:21 AM PDTSpecial Weather StatementOTXDouglas39 min
May 30, 8:48 AM PDTRiver Flood WarningOTXChelan27 hr
May 30, 8:59 AM PDTFlash Flood WatchOTXChelan, Douglas, Ferry, Grant, Okanogan11 hr
May 30, 10:18 AM PDTSpecial Weather StatementOTXStevens42 min

Nearby

River Flood Watches in Washington, 2020Every river flood watch in 2020

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.