Alert archive / Washington / River Flood Warnings in 2011

River Flood Warning 17, NWS Pendleton, OR

March 31, 2011Yakima County, Washington

NWS Pendleton, OR issued this river flood warning at Mar 31, 2011, 6:23 PM PDT for Yakima County, Washington. It took effect at Apr 1, 2011, 3:51 AM PDT. It was in force for 31 hr.

The area

The counties it named.

The facts

Issued
Mar 31, 2011, 6:23 PM PDT (01:23 UTC)
In effect from
Apr 1, 2011, 3:51 AM PDT
Expired
Apr 2, 2011, 10:30 AM PDT
In force
31 hr
Issued by
NWS Pendleton, OR
Flood severity
Minor

County Yakima County, WA

The radar

The Pendleton radar (KPDT), 169 km from the middle of the area, began a volume at 01:25 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 Yakima River near Parker (PARW1).

Action stage
9.4 ft
Minor stage
10 ft
Moderate stage
12 ft
Major stage
14 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12505000, 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 warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pendleton, OR wrote its last area forecast discussion before this river flood warning went out at Mar 31, 1:55 PM PDT, 4 hours 28 minutes earlier.

Area forecast discussion, Mar 31, 1:55 PM PDT, 4 hours 28 minutes before
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Hazardous weather outlook, Mar 31, 10:44 AM PDT, 7 hours 39 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
1044 AM PDT THU MAR 31 2011

UPDATED TO ADD WIND ADVISORY FOR TODAY

ORZ041-042-044-049-050-502-503-505>509-WAZ024-026>030-520-521-
011415-
EASTERN COLUMBIA RIVER GORGE OF OREGON-NORTH CENTRAL OREGON-
LOWER COLUMBIA BASIN OF OREGON-GRANDE RONDE VALLEY-WALLOWA COUNTY-
NORTHERN BLUE MOUNTAINS OF OREGON-
SOUTHERN BLUE MOUNTAINS OF OREGON-JOHN DAY BASIN-OCHOCO-
JOHN DAY HIGHLANDS-
FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON-
FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON-
EAST SLOPES OF THE OREGON CASCADES-
EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-KITTITAS VALLEY-
YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-
NORTHWEST BLUE MOUNTAINS OF WASHINGTON-
EAST SLOPES OF THE WASHINGTON CASCADES-SIMCOE HIGHLANDS-
1044 AM PDT THU MAR 31 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON
AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

FLOODING
     EAST SLOPES OF THE WASHINGTON CASCADES, KITTITAS VALLEY

WIND
     LOWER COLUMBIA BASIN IF WASHINGTON

RAIN ALONG THE CREST OF THE CASCADES AND MILD TEMPERATURES WILL
CONTINUE TO CAUSE INCREASED SNOWMELT AND RUNOFF WITH AREAS OF
FLOODING IN WESTERN KITTITAS COUNTY.  SEE FLOOD WARNING PRODUCT
PDXFLWPDT FOR MORE INFORMATION.

A STRONG UPPER LEVEL JET STREAM ON THE NORTHERN FRINGES OF THE
FORECAST AREA AND TIGHT SURFACE PRESSURE GRADIENTS WILL PRODUCE
WINDY CONDITIONS IN THE BOUNDARY LAYER TODAY. THE LOWER COLUMBIA
BASIN IN SOUTHEAST WASHINGTON AND ESPECIALLY THE AREA NORTH OF
RATTLESNAKE MOUNTAIN IN NORTHERN BENTON COUNTY WILL BE THE WINDIEST
TODAY. A WIND ADVISORY HAS BEEN ISSUED FOR THIS AREA. OTHERWISE...A
LOW AMPLITUDE RIDGE OF HIGH PRESSURE IN THE MID/UPPER ATMOSPHERE
WILL PERSIST OVER THE INTERIOR PACIFIC NORTHWEST THROUGH TONIGHT
PRODUCING SUBSIDENCE AND DRY CONDITIONS... EXCEPT FOR A CHANCE OF
LIGHT RAIN OR RAIN SHOWERS ALONG THE EAST SLOPES OF THE CASCADES AND
IN THE HIGHER MOUNTAINS OF NORTHEAST OREGON/SOUTHEAST WASHINGTON.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SNOW SATURDAY
     NORTHWEST BLUE MOUNTAINS OF WASHINGTON, GRANDE RONDE VALLEY,
     WALLOWA COUNTY, NORTHERN BLUE MOUNTAINS OF OREGON, SOUTHERN
     BLUE MOUNTAINS OF OREGON

A MID/UPPER LEVEL PACIFIC TROUGH WILL PUSH A COLD FRONT THROUGH THE
FORECAST AREA SATURDAY AND BRING RAIN AND SNOW TO THE FORECAST AREA.
SNOW LEVELS WILL DROP SATURDAY AFTERNOON AS THE COLD FRONT EXITS
INTO IDAHO WITH SNOW LEVELS LOWERING TO AROUND 3500-4000 FEET BY
LATE SATURDAY AFTERNOON AND THEN CONTINUE TO LOWER SATURDAY NIGHT TO
AROUND 2000-2500 FEET IN THE MOUNTAINS OF EASTERN OREGON AND
SOUTHEAST WASHINGTON. THESE AREAS MAY RECEIVE LATE SEASON SNOW
ACCUMULATIONS OF 2-5 INCHES...WHICH WOULD MEET WINTER WEATHER
ADVISORY CRITERIA FOR SNOW IN THE BLUE MOUNTAINS AND IN THE GRANDE
RONDE AND WALLOWA VALLEYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

GRAPHICAL FORECASTS OF WEATHER HAZARDS OUT TO SEVEN DAYS
ARE DISPLAYED ON THE WORLD WIDE WEB AT:

WWW.WRH.NOAA.GOV/PDT/CURRENTHAZARDS/HWO.HTML

ALL LETTERS IN THE ABOVE URL ARE LOWER CASE.

The office that day

Everything else NWS Pendleton, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 1, 3:12 AM PDTWinter Weather AdvisoryPDTUmatilla, Union, Wallowa49 hr
Mar 31, 6:04 PM PDTRiver Flood WarningPDTYakima15 hr

Nearby

River Flood Warnings in Washington, 2011Every river flood warning in 2011

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.