Alert archive / Washington / Flash Flood Watches in 2010

Flash Flood Watch 1, NWS Spokane, WA

August 3, 2010Chelan County, Douglas County, Okanogan County, Washington

NWS Spokane, WA issued this flash flood watch at Aug 3, 2010, 2:21 AM PDT for Chelan County, Douglas County, Okanogan County, Washington. It took effect at Aug 3, 2010, 11:00 AM PDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Aug 3, 2010, 2:21 AM PDT (09:21 UTC)
In effect from
Aug 3, 2010, 11:00 AM PDT
Expired
Aug 3, 2010, 9:24 PM PDT
In force
10 hr
Issued by
NWS Spokane, WA
Flood severity
None

Counties Chelan County, WA, Douglas County, WA, Okanogan County, WA

The radar

The Spokane radar (KOTX), 183 km from the middle of the area, began a volume at 09:18 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.

What forecasters said that day

The local office's own words before this flash 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 flash flood watch went out at Aug 3, 2:21 AM PDT, 0 minutes earlier.

Area forecast discussion, Aug 3, 2:21 AM PDT, 0 minutes before
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Hazardous weather outlook, Aug 3, 2:21 AM PDT, 0 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPOKANE WA
221 AM PDT TUE AUG 3 2010

IDZ001>004-026-027-WAZ031>037-041100-
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-
221 AM PDT TUE AUG 3 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO...
NORTH CENTRAL IDAHO...EAST CENTRAL WASHINGTON...NORTHEAST
WASHINGTON AND SOUTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

WAZ042-041100-
EAST SLOPES NORTHERN CASCADES-
221 AM PDT TUE AUG 3 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

SHOWERS ARE LIKELY THIS AFTERNOON AND EVENING WITH A CHANCE OF
THUNDERSTORMS. THESE STORMS WILL MOVE SLOWLY AND PRODUCE HEAVY
RAIN. THE HEAVY RAIN MAY LEAD TO INCREASED RUNOFF OVER THE STEEP
TERRAIN AND POSSIBLE FLASH FLOODING OR DEBRIS FLOWS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THE THREAT FOR ADDITIONAL SLOW MOVING THUNDERSTORMS WITH HEAVY
RAIN WILL CONTINUE WEDNESDAY AFTERNOON AND EVENING...AND AGAIN
THURSDAY AFTERNOON AND EVENING.

WAZ038-041-043-044-041100-
OKANOGAN HIGHLANDS-WENATCHEE AREA-OKANOGAN VALLEY-
WATERVILLE PLATEAU-
221 AM PDT TUE AUG 3 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
WASHINGTON AND NORTH CENTRAL WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS FOR THIS AFTERNOON AND
EVENING...BUT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 4:28 PM PDTSpecial Weather StatementOTX62 min

Nearby

Flash Flood Watches in Washington, 2010Every flash flood watch in 2010

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.