Alert archive / Washington / Flash Flood Watches in 2013
Flash Flood Watch 3, NWS Spokane, WA
NWS Spokane, WA issued this flash flood watch at Aug 9, 2013, 2:30 AM PDT for Chelan County, Douglas County, Okanogan County, Washington. It took effect at Aug 10, 2013, 11:00 AM PDT. It was in force for 35 hr.
The area
The counties it named.
The facts
- Issued
- Aug 9, 2013, 2:30 AM PDT (09:30 UTC)
- In effect from
- Aug 10, 2013, 11:00 AM PDT
- Expired
- Aug 11, 2013, 9:47 PM PDT
- In force
- 35 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 09:27 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 nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 9.5 hours before the alert went out and 273 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3494 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 8, 10:39 PM PDT, 3 hours 51 minutes earlier.
Area forecast discussion, Aug 8, 10:39 PM PDT, 3 hours 51 minutes before
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</html>Hazardous weather outlook, Aug 8, 2:43 PM PDT, 11 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPOKANE WA 243 PM PDT THU AUG 8 2013 IDZ002-003-WAZ031>036-041-042-044-092145- COEUR D'ALENE AREA-IDAHO PALOUSE-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE- MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA-WENATCHEE AREA- EAST SLOPES NORTHERN CASCADES-WATERVILLE PLATEAU- 243 PM PDT THU AUG 8 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO... CENTRAL WASHINGTON...EAST CENTRAL WASHINGTON...NORTH CENTRAL WASHINGTON...NORTHEAST WASHINGTON AND SOUTHEAST WASHINGTON. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE WILL BE THE POTENTIAL FOR THUNDERSTORMS FRIDAY THROUGH MONDAY OVER EASTERN WASHINGTON AND NORTHERN IDAHO. IN GENERAL...THUNDERSTORMS MAY START OUT QUITE DRY FRIDAY AFTERNOON BUT AS THE LIGHTNING ACTIVITY INCREASES THEY ARE EXPECTED TO BECOME PROGRESSIVELY WETTER SUNDAY. EITHER WAY THE LIGHTNING ACTIVITY COULD HEIGHTEN POTENTIAL FOR NEW WILDFIRE STARTS. IDZ001-004-026-027-WAZ037-038-043-092145- NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST MOUNTAINS- OKANOGAN HIGHLANDS-OKANOGAN VALLEY- 243 PM PDT THU AUG 8 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO... NORTH CENTRAL IDAHO...NORTH CENTRAL WASHINGTON AND NORTHEAST WASHINGTON. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE WILL BE THE POTENTIAL FOR THUNDERSTORMS FRIDAY THROUGH MONDAY OVER EASTERN WASHINGTON AND NORTHERN IDAHO. IN GENERAL...THUNDERSTORMS WILL BE WET...BUT THE INCREASE IN LIGHTNING ACTIVITY COULD HEIGHTEN THE POTENTIAL FOR SOME NEW WILDFIRE STARTS.
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 5:30 AM PDT | Red Flag Warning | OTX | 65 hr |
Nearby
Flash Flood Watches in Washington, 2013Every flash flood watch in 2013
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.