Alert archive / Oregon / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 8, NWS Pendleton, OR

July 13, 2007Grant County, Oregon

NWS Pendleton, OR issued this severe thunderstorm warning at Jul 13, 2007, 4:09 PM PDT for Grant County, Oregon. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 13, 2007, 4:09 PM PDT (23:09 UTC)
Expired
Jul 13, 2007, 5:15 PM PDT
In force
66 min
Issued by
NWS Pendleton, OR
Area
Counties, with a storm outline in the text

County Grant County, OR

The radar

The Pendleton radar (KPDT), 134 km from the middle of the area, began a volume at 23:13 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 severe thunderstorm 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 severe thunderstorm warning went out at Jul 13, 2:39 PM PDT, 1 hour 30 minutes earlier.

Area forecast discussion, Jul 13, 2:39 PM PDT, 1 hour 30 minutes before
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Hazardous weather outlook, Jul 13, 12:05 PM PDT, 4 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
1205 PM PDT FRI JUL 13 2007

UPDATED TO ADD MENTION OF THUNDERSTORM SLIGHT RISK AREA TODAY

ORZ041-WAZ024-501-502-026>030-ORZ042>044-049-050-501>506-141215-
EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-
EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON-
EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON-
KITTITAS VALLEY-YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-
NORTHWEST BLUE MOUNTAINS-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-
1205 AM PDT FRI JUL 13 2007

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

.DAY ONE...REST OF TODAY AND TONIGHT

RED FLAG WARNING
     EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, EAST SLOPES
     OF THE SOUTHERN CASCADES OF WASHINGTON, KITTITAS VALLEY,
     YAKIMA VALLEY, LOWER COLUMBIA BASIN OF WASHINGTON, FOOTHILLS
     OF THE BLUE MOUNTAINS OF WASHINGTON, NORTHWEST BLUE MOUNTAINS,
     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

     CONTACT YOUR LOCAL FOREST OR LAND MANAGEMENT AGENCY FOR
     CURRENT FIRE DANGER CONDITIONS IN YOUR AREA.

STRONG THUNDERSTORMS
     EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, EAST SLOPES
     OF THE SOUTHERN CASCADES OF WASHINGTON, KITTITAS VALLEY,
     YAKIMA VALLEY, LOWER COLUMBIA BASIN OF WASHINGTON, FOOTHILLS
     OF THE BLUE MOUNTAINS OF WASHINGTON, NORTHWEST BLUE MOUNTAINS,
     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

A HEAT ADVISORY IS NOW IN EFFECT FOR THE KITTITAS VALLEY AS WELL AS
THE LOWER COLUMBIA BASIN...BLUE MOUNTAIN FOOTHILLS AND THE YAKIMA
VALLEY TODAY. A LARGE PORTION OF THESE AREAS ARE EXPECTED TO HAVE
100 DEGREE OR HIGHER TEMPERATURES THIS AFTERNOON THROUGH EARLY
EVENING. PLEASE REFER TO THE LATEST PRODUCT ID PDXNPWPDT FOR
FURTHER DETAILS.

DANGEROUS FIRE WEATHER CONDITIONS WILL PERSIST TODAY ACROSS CENTRAL
AND NORTHEAST OREGON AND SOUTH CENTRAL AND SOUTHEAST WASHINGTON
TODAY AND TONIGHT. A RED FLAG WARNING REMAINS IN EFFECT FOR THE
AREA. THE AFTERNOON AND EVENING RELATIVE HUMIDITY WILL REMAIN LOW
WITH AN UNSTABLE AIR MASS. SCATTERED THUNDERSTORMS WILL DEVELOP OVER
THIS AFTERNOON AND EVENING AND SOME OF THEM WILL ONLY PRODUCE A
LITTLE RAINFALL IF ANY. PLEASE REFER TO THE LATEST NWS PRODUCT
PDXRFWPDT FOR DETAILS.

IN ADDITION...THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
RED FLAG WARNING FOR TODAY FOR THE EAST SLOPES OF THE NORTHERN
WASHINGTON CASCADES AND THE UPPER PORTION OF THE COLUMBIA BASIN.
DETAILS CAN BE FOUND IN THEIR PRODUCT...SEWRFWOTX.

SCATTERED THUNDERSTORMS ARE POSSIBLE OVER THE REGION TODAY. GUSTY
WINDS AND FREQUENT LIGHTNING AS WELL AS SMALL HAIL WILL ACCOMPANY
THESE STORMS. ISOLATED STRONG TO SEVERE STORMS ARE ALSO POSSIBLE
THIS AFTERNOON ACROSS THE REGION...WITH LARGE HAIL ALONG WITH VERY
GUSTY WINDS AND FREQUENT LIGHTNING.  THE STORM PREDICTION CENTER HAS
PLACED A PORTION OF NORTHEAST OREGON AND EAST WASHINGTON IN A SLIGHT
RISK AREA THIS AFTERNOON FOR THE THREAT OF LARGE HAIL AND DAMAGING
THUNDERSTORM WIND.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH FRIDAY

RED FLAG WARNING SATURDAY
     EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON, KITTITAS
     VALLEY, YAKIMA VALLEY, LOWER COLUMBIA BASIN OF WASHINGTON,
     FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON, NORTHWEST BLUE
     MOUNTAINS, NORTH 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

THUNDERSTORMS SATURDAY
     EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, EAST SLOPES
     OF THE SOUTHERN CASCADES OF WASHINGTON, KITTITAS VALLEY,
     YAKIMA VALLEY, LOWER COLUMBIA BASIN OF WASHINGTON, FOOTHILLS
     OF THE BLUE MOUNTAINS OF WASHINGTON, NORTHWEST BLUE MOUNTAINS,
     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

DANGEROUS FIRE WEATHER CONDITIONS SUNDAY
     NORTHWEST BLUE MOUNTAINS, GRANDE RONDE VALLEY, WALLOWA COUNTY,
     NORTHERN BLUE MOUNTAINS OF OREGON, SOUTHERN BLUE MOUNTAINS OF
     OREGON, JOHN DAY BASIN, OCHOCO-JOHN DAY HIGHLANDS

DANGEROUS FIRE CONDITIONS WILL PERSIST ON SATURDAY AND SATURDAY
NIGHT OVER MOST AREAS OF THE FIRE DISTRICT. THUNDERSTORMS WILL ONCE
AGAIN BE COMMON OVER MOST OF THE AREA. WHILE THE THUNDERSTORMS ARE
NOT EXPECTED TO BE AS STRONG AS ON FRIDAY...THEY MAY STILL PRODUCE
FREQUENT LIGHTNING AND GUSTY WINDS WITH LITTLE IF ANY RAINFALL. A
RED FLAG WARNING CONTINUES FOR SEVERAL ZONES ON SATURDAY...PLEASE
REFER TO PRODUCT PDXRFWPDT FOR MORE DETAILS.

THE HEAT ADVISORY WILL CONTINUE THROUGH SATURDAY EVENING FOR THE
LOWER COLUMBIA BASIN...THE BLUE MOUNTAIN FOOTHILLS...AND THE YAKIMA
VALLEY WITH TEMPERATURES REACHING OR EXCEEDING 100 DEGREES OVER A
LARGE PORTION OF THE AREA. PLEASE REFER TO THE PRODUCT PDXNPWPDT
FOR DETAILS.

.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/PENDLETON/CURRENTHAZARDS/HWO.HTML

ALL LETTERS IN THE ABOVE URL ARE LOWER CASE...EXCEPT THE H IN
CURRENTHAZARDS.

Nearby

Severe Thunderstorm Warnings in Oregon, 2007Every severe thunderstorm warning in 2007

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.