Alert archive / Washington / River Flood Watches in 2018
River Flood Watch 7, NWS Spokane, WA
NWS Spokane, WA issued this river flood watch at May 7, 2018, 4:41 PM PDT for Chelan County, Okanogan County, Washington. It took effect at May 9, 2018, 10:01 AM PDT. It was in force for 4 days.
The area
The counties it named.
The facts
- Issued
- May 7, 2018, 4:41 PM PDT (23:41 UTC)
- In effect from
- May 9, 2018, 10:01 AM PDT
- Expired
- May 13, 2018, 5:10 PM PDT
- In force
- 4 days
- Issued by
- NWS Spokane, WA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Chelan County, WA, Okanogan County, WA
The radar
The Seattle radar (KATX), 172 km from the middle of the area, began a volume at 23:43 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 Similkameen River near Nighthawk (NITW1). The gauge peaked at 15.49 ft at May 10, 2018, 10:00 PM PDT.
- Action stage
- 13 ft
- Minor stage
- 14 ft
- Moderate stage
- 15 ft
- Major stage
- 16 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 12442500, 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 7, 2:59 PM PDT, 1 hour 42 minutes earlier.
Area forecast discussion, May 7, 2:59 PM PDT, 1 hour 42 minutes before
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</html>Hazardous weather outlook, May 6, 8:57 PM PDT, 19 hours 44 minutes before
Hazardous Weather Outlook National Weather Service Spokane WA 857 PM PDT Sun May 6 2018 IDZ001>004-026-027-WAZ031>038-041>044-081500- Northern Panhandle-Coeur d'Alene Area-Idaho Palouse- Central Panhandle Mountains-Lewiston Area- Lewis and Southern Nez Perce Counties-Northeast Blue Mountains- Lower Garfield and Asotin Counties-Washington Palouse- Moses Lake Area-Upper Columbia Basin-Spokane Area- Northeast Mountains-Okanogan Highlands-Wenatchee Area- East Slopes Northern Cascades-Okanogan Valley-Waterville Plateau- 857 PM PDT Sun May 6 2018 This Hazardous Weather Outlook is for portions of North Idaho... North Central Idaho...Central Washington...East Central Washington...North Central Washington...Northeast Washington and Southeast Washington. .DAY ONE...TONIGHT Many rivers across northern Washington and Idaho will continue to run high. The rivers will be very cold with swift currents. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY Warm weather through the middle of next week will keep water levels on area rivers and streams very high due to snowmelt in the mountains. Rivers will be very cold with swift currents.
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 11:20 AM PDT | River Flood Warning | OTX | Ferry | 13 days |
| May 6, 5:16 PM PDT | Special Weather Statement | OTX | Shoshone | 59 min |
| May 6, 6:16 PM PDT | Special Weather Statement | OTX | Shoshone | 44 min |
| May 6, 8:02 PM PDT | Areal Flood Warning | OTX | Boundary | 15 hr |
| May 6, 8:14 PM PDT | River Flood Watch | OTX | Kootenai, Shoshone | 36 hr |
| May 6, 8:14 PM PDT | River Flood Watch | OTX | Shoshone | 10 hr |
| May 6, 8:14 PM PDT | River Flood Watch | OTX | Benewah | 24 hr |
| May 7, 6:33 AM PDT | Areal Flood Warning | OTX | Shoshone | 5 hr |
| May 7, 10:27 AM PDT | River Flood Warning | OTX | Benewah | 6 days |
| May 7, 11:00 AM PDT | River Flood Warning | OTX | Kootenai, Shoshone | 14 hr |
| May 7, 11:20 AM PDT | River Flood Warning | OTX | Boundary | 5 days |
| May 7, 11:20 AM PDT | River Flood Warning | OTX | Shoshone | 13 hr |
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.