La Grande Weather - Special Cases

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

FLOODING
EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, KITTITAS
VALLEY, YAKIMA VALLEY, LOWER COLUMBIA BASIN OF WASHINGTON,
WALLOWA COUNTY

A FLOOD WARNING HAS BEEN ISSUED FOR THE NACHES RIVER NEAR CLIFFDELL
AND NEAR NACHES.  THE RIVER IS FORECAST TO RISE ABOVE FLOOD STAGE
LATE TONIGHT AND FRIDAY AND WILL THREATEN NEARBY AREAS WITH FLOODING
THROUGH THE WEEKEND AND INTO NEXT WEEK.  MAJOR FLOODING IS POSSIBLE
ALONG THE NACHES RIVER FROM CLIFFDELL DOWNSTREAM THROUGH NACHES TO
THE NORTH END OF YAKIMA.  FOR INFORMATION ON FLOODING IN THIS
AREA...PLEASE REFER TO THE FLOOD WARNING...PDXFLWPDT [WGUS46 KPDT].

A FLOOD WATCH HAS BEEN POSTED FOR THE YAKIMA RIVER FROM UMTANUM
DOWNSTREAM THROUGH PARKER TO NEAR KIONA IN EFFECT THROUGH SUNDAY.  A
FLOOD WATCH HAS ALSO BEEN ISSUED FOR THE IMNAHA RIVER AT IMNAHA
THROUGH SUNDAY.  FOR MORE DETAILS...PLEASE REFER TO THE FLOOD
WATCH...PDXFFAPDT [WGUS66 KPDT].

SNOWMELT RUNOFF ASSOCIATED WITH THE SIGNIFICANT WARMING ACROSS THE
AREA WILL RESULT IN RIVER AND STREAM RISES WITH FLOODING POSSIBLE OR
IMMINENT IN THE AREAS LISTED ABOVE.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH THURSDAY

FLOODING FRIDAY THROUGH SUNDAY
KITTITAS VALLEY, LOWER COLUMBIA BASIN OF WASHINGTON,
WALLOWA COUNTY

FLOODING FRIDAY THROUGH THURSDAY
EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, YAKIMA
VALLEY

THE FLOOD WARNING FOR THE NACHES RIVER FROM AREAS NEAR CLIFFDELL
DOWNSTREAM TO THE NORTH END OF YAKIMA IS IN EFFECT UNTIL FURTHER
NOTICE.  FOR INFORMATION ON FLOODING IN THIS AREA...PLEASE REFER TO
THE FLOOD WARNING...PDXFLWPDT [WGUS46 KPDT].

THE FLOOD WATCH FOR THE YAKIMA RIVER FROM UMTANUM DOWNSTREAM TO NEAR
KIONA IS IN EFFECT THROUGH SUNDAY.  THE FLOOD WATCH FOR THE IMNAHA
RIVER AT IMNAHA IS IN EFFECT THROUGH SUNDAY.  FOR MORE
DETAILS...PLEASE REFER TO THE FLOOD WATCH...PDXFFAPDT [WGUS66 KPDT].

THE STRONG HIGH PRESSURE SYSTEM WILL PERSIST WITH NEAR RECORD HIGH
TEMPERATURES EXPECTED TO CONTINUE THROUGH THE WEEKEND. A WEATHER
SYSTEM AND COLD FRONT WILL MOVE INTO THE REGION EARLY NEXT WEEK WITH
SOME COOLER AIR AND A CHANCE OF SHOWERS AND POSSIBLE THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE LIKELY WHERE FLOOD WATCHES AND WARNINGS
ARE IN EFFECT.

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.