Alert archive / Washington / River Flood Watches in 2020

River Flood Watch 7, NWS Spokane, WA

May 29, 2020Chelan County, Washington

NWS Spokane, WA issued this river flood watch at May 29, 2020, 11:35 AM PDT for Chelan County, Washington. It took effect at May 31, 2020, 4:22 AM PDT. It was in force for 45 hr.

The area

The counties it named.

The facts

Issued
May 29, 2020, 11:35 AM PDT (18:35 UTC)
In effect from
May 31, 2020, 4:22 AM PDT
Expired
Jun 2, 2020, 1:11 AM PDT
In force
45 hr
Issued by
NWS Spokane, WA
Area
Storm-based polygon
Flood severity
None

County Chelan County, WA

The radar

The Seattle radar (KATX), 144 km from the middle of the area, began a volume at 18:33 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 Stehekin River at Stehekin (STHW1). The gauge peaked at 25.24 ft at May 31, 2020, 2:00 AM PDT.

actionminor2022242605/2905/3005/3106/0106/0206/03
Action stage
19.5 ft
Minor stage
20.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12451000, 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, 11:13 AM PDT, 22 minutes earlier.

Area forecast discussion, May 29, 11:13 AM PDT, 22 minutes before
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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.