Alert archive / Washington / Flash Flood Watches in 2009
Flash Flood Watch 3, NWS Spokane, WA
NWS Spokane, WA issued this flash flood watch at Jun 5, 2009, 10:43 AM PDT for Asotin County, Garfield County, Washington. It took effect at Jun 5, 2009, 11:00 AM PDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Jun 5, 2009, 10:43 AM PDT (17:43 UTC)
- In effect from
- Jun 5, 2009, 11:00 AM PDT
- Expired
- Jun 5, 2009, 4:56 PM PDT
- In force
- 6 hr
- Issued by
- NWS Spokane, WA
- Flood severity
- None
Counties Asotin County, WA, Garfield County, WA
The radar
The Pendleton radar (KPDT), 134 km from the middle of the area, began a volume at 17:46 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 12:00Z, 5.7 hours before the alert went out and 171 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
- 37 J/kg
- Mixed-layer CIN
- -266 J/kg
- Mixed-layer LCL
- 1139 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 87 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 Jun 5, 10:43 AM PDT, 0 minutes earlier.
Area forecast discussion, Jun 5, 10:43 AM PDT, 0 minutes before
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</html>Hazardous weather outlook, Jun 5, 5:58 AM PDT, 4 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPOKANE WA 558 AM PDT FRI JUN 5 2009 IDZ003-004-026-027-WAZ031>033-061300- IDAHO PALOUSE-CENTRAL PANHANDLE MOUNTAINS-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE- 558 AM PDT FRI JUN 5 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO... NORTH CENTRAL IDAHO AND SOUTHEAST WASHINGTON. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE ACROSS SOUTHEASTERN WASHINGTON AND THE LEWISTON AREA OF IDAHO TODAY AND THIS EVENING. THESE STORMS WILL BE SLOW MOVING...RESULTING IN LOCALLY HEAVY RAINFALL AND POSSIBLE HAIL. PONDING OF WATER ON ROADWAYS AT LOW SPOTS AND INTERSECTIONS IS POSSIBLE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. IDZ001-002-WAZ034>038-041>044-061300- NORTHERN PANHANDLE-COEUR DALENE AREA-MOSES LAKE AREA- UPPER COLUMBIA BASIN-SPOKANE AREA-NORTHEAST MOUNTAINS- OKANOGAN HIGHLANDS-WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES- OKANOGAN VALLEY-WATERVILLE PLATEAU- 558 AM PDT FRI JUN 5 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO... CENTRAL WASHINGTON...EAST CENTRAL WASHINGTON...NORTH CENTRAL WASHINGTON AND NORTHEAST WASHINGTON. .DAY ONE...TODAY AND TONIGHT THIS AFTERNOON AND EVENING THERE WILL BE A CHANCE OF THUNDERSTORMS...WITH SOME STORMS POSSIBLY CONTAINING HAIL...GUSTY WINDS...AND BRIEF HEAVY RAIN ESPECIALLY OVER THE EASTERN THIRD OF WASHINGTON AND NORTH IDAHO. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 10:26 PM PDT | Areal Flood Advisory | OTX | Whitman | 3 hr |
| Jun 5, 2:54 PM PDT | Special Weather Statement | OTX | Ferry | 51 min |
| Jun 5, 4:08 PM PDT | Special Weather Statement | OTX | Pend Oreille | 52 min |
Nearby
Flash Flood Watches in Washington, 2009Every flash flood watch in 2009
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.