Alert archive / Washington / River Flood Watches in 2015

River Flood Watch 2, NWS Spokane, WA

October 31, 2015Chelan County, Washington

NWS Spokane, WA issued this river flood watch at Oct 31, 2015, 6:57 PM PDT for Chelan County, Washington. It took effect at Oct 31, 2015, 9:30 PM PDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Oct 31, 2015, 6:57 PM PDT (01:57 UTC)
In effect from: Oct 31, 2015, 9:30 PM PDT
Expired: Nov 1, 2015, 1:00 AM PST
In force: 5 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 01:58 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).

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 Oct 31, 2:58 PM PDT, 3 hours 59 minutes earlier.

Area forecast discussion, Oct 31, 2:58 PM PDT, 3 hours 59 minutes before

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Hazardous weather outlook, Oct 31, 6:15 AM PDT, 12 hours 42 minutes before

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In the hours before

Local storm report, Oct 31, 3:40 PM PDT, 3 hours 17 minutes before

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Nearby

River Flood Watches in Washington, 2015 Every river flood watch in 2015

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.