Alert archive / Oregon / Winter Storm Warnings in 2009

Winter Storm Warning 7, NWS Pendleton, OR

April 1, 2009Umatilla County, Union County, Wallowa County, Oregon; Columbia County, Walla Walla County, Washington

NWS Pendleton, OR issued this winter storm warning at Apr 1, 2009, 3:38 PM PDT for Umatilla County, Union County, Wallowa County, Oregon; Columbia County, Walla Walla County, Washington. It took effect at Apr 1, 2009, 5:00 PM PDT. It was in force for 36 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 1, 2009, 3:38 PM PDT (22:38 UTC)
In effect from
Apr 1, 2009, 5:00 PM PDT
Expired
Apr 3, 2009, 5:00 AM PDT
In force
36 hr
Issued by
NWS Pendleton, OR

Counties Umatilla County, OR, Union County, OR, Wallowa County, OR, Columbia County, WA, Walla Walla County, WA

The radar

The Pendleton radar (KPDT), 63 km from the middle of the area, began a volume at 22:42 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 winter storm 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 winter storm warning went out at Apr 1, 2:39 PM PDT, 59 minutes earlier.

Area forecast discussion, Apr 1, 2:39 PM PDT, 59 minutes before
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Hazardous weather outlook, Apr 1, 5:00 AM PDT, 10 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
500 AM PDT WED APR 1 2009

ORZ041>044-049-050-501>506-WAZ024-026>030-501-502-021115-
EASTERN COLUMBIA RIVER GORGE OF OREGON-NORTH CENTRAL OREGON-
CENTRAL OREGON-LOWER COLUMBIA BASIN OF OREGON-GRANDE RONDE VALLEY-
WALLOWA COUNTY-FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON-
NORTHERN BLUE MOUNTAINS OF OREGON-
SOUTHERN BLUE MOUNTAINS OF OREGON-
NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES-JOHN DAY BASIN-
OCHOCO-JOHN DAY HIGHLANDS-
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-
EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON-
EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON-
500 AM PDT WED APR 1 2009

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

.DAY ONE...TODAY AND TONIGHT

SNOW
     NORTHWEST BLUE MOUNTAINS, WALLOWA COUNTY, NORTHERN BLUE
     MOUNTAINS OF OREGON, SOUTHERN BLUE MOUNTAINS OF OREGON

A WEATHER DISTURBANCE WILL MOVE INTO THE REGION THIS
AFTERNOON...BRINGING MORE RAIN AND MOUNTAIN SNOW. MODERATE TO HEAVY
SNOW WILL BE POSSIBLE IN THE BLUE MOUNTAINS AND WALLOWA COUNTY. A
WINTER STORM WATCH HAS BEEN ISSUED FOR THESE AREAS. REFER TO NWS
PRODUCT PDXWSWPDT FOR DETAILS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SNOW THURSDAY
     NORTHWEST BLUE MOUNTAINS, WALLOWA COUNTY, NORTHERN BLUE
     MOUNTAINS OF OREGON, SOUTHERN BLUE MOUNTAINS OF OREGON

MODERATE TO HEAVY SNOWFALL WILL PERSIST IN THE BLUE MOUNTAINS AND
WALLOWA COUNTY THROUGH FRIDAY MORNING. HIGH PRESSURE WILL THEN
RETURN FOR DRY CONDITIONS OVER THE WEEKEND. ANOTHER STORM SYSTEM
WILL MOVE IN ON MONDAY...BRINGING MORE UNSETTLED WEATHER.

.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...EXCEPT THE H IN
CURRENTHAZARDS.

In the hours before

Local storm report, Apr 1, 12:55 PM PDT, 2 hours 43 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 1, 3:45 AM PDTWinter Storm WatchPDTGilliam, Grant, Morrow, Umatilla, Union, Wallowa and 1 more12 hr
Apr 1, 3:38 PM PDTWinter Weather AdvisoryPDTGrant, Jefferson, Morrow, Union, Wallowa, Wasco and 1 more25 hr

Nearby

Winter Storm Warnings in Oregon, 2009Winter Storm Warnings in Washington, 2009Every winter storm warning 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; radar from the NEXRAD Level II archive.