Flash Flood Watch
Issued by NWS Spokane, WA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6
000
WGUS66 KOTX 231404
FFAOTX

FLOOD WATCH
NATIONAL WEATHER SERVICE SPOKANE WA
704 AM PDT WED JUL 23 2014

...HEAVY RAINFALL MAY LEAD TO FLASH FLOODING ALONG THE EAST
SLOPES OF THE NORTHERN CASCADES...

.A BAND OF MODERATE TO HEAVY RAINFALL IS EXPECTED TO DEVELOP IN
THE CASCADES LATE WEDNESDAY MORNING INTO THE AFTERNOON. THIS BAND
WILL ALSO CONTAIN SOME EMBEDDED THUNDERSTORMS WITH LOCALLY HEAVIER
RAINFALL RATES THAT COULD LEAD TO FLASH FLOODING. THUNDERSTORMS
WILL CONTINUE TO BE POSSIBLE INTO WEDNESDAY EVENING. AREAS OF
GREATEST CONCERN WILL BE IN AND AROUND RECENT BURN SCARS FROM
WILDFIRES THAT BURNED IN 2012...2013 AND SO FAR INTO 2014.

WAZ041>043-240215-
/O.CON.KOTX.FF.A.0002.140723T1500Z-140724T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY-
INCLUDING THE CITIES OF...WENATCHEE...CHELAN...ENTIAT...
CASHMERE...LEAVENWORTH...MAZAMA...TWISP...WINTHROP...STEHEKIN...
CONCONULLY...OMAK...OKANOGAN...BREWSTER...BRIDGEPORT...OROVILLE...
NESPELEM
704 AM PDT WED JUL 23 2014

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF NORTH CENTRAL WASHINGTON...INCLUDING THE
  FOLLOWING AREAS...EAST SLOPES NORTHERN CASCADES...OKANOGAN
  VALLEY AND WENATCHEE AREA.

* THROUGH THIS EVENING

* A MOIST LOW PRESSURE SYSTEM WILL PRODUCE A BAND OF MODERATE TO
  HEAVY RAINFALL OVER THE EAST SLOPES OF THE NORTHERN CASCADES.
  EMBEDDED IN THIS BAND WILL BE THE POTENTIAL FOR SOME
  THUNDERSTORMS WITH VERY HEAVY RAINFALL RATES. THUNDERSTORMS
  WILL CONTINUE TO BE POSSIBLE OVER THE AREA INTO THE EVENING
  HOURS.

* HEAVY RAINFALL MAY LEAD TO FLASH FLOODING OR MUD AND DEBRIS
  FLOWS. THE AREAS OF GREATEST CONCERN WILL BE IN AND AROUND THE
  RECENT BURN SCARS FROM WILDFIRES IN 2012...2013...AND SO FAR
  THROUGH 2014. THIS INCLUDES THE FOLLOWING BURN SCARS...

THE CARLTON COMPLEX FIRE AFFECTING RESIDENTS...BUSINESSES...AND
MOTORISTS IN THE METHOW VALLEY AND PORTIONS OF THE OKANOGAN
VALLEY. THIS INCLUDES MOTORISTS ON US HIGHWAY 97 FROM CHELAN TO
BREWSTER AND STATE HIGHWAY 153 FROM PATEROS TO TWISP.

THE MILLS CANYON FIRE AFFECTING RESIDENTS AND MOTORISTS IN MILLS
CANYON AND OTHER NEARBY CANYONS IN THE ENTIAT RIVER VALLEY...AS
WELL AS MOTORISTS BELOW THE BURNED AREAS ON ENTIAT RIVER ROAD AND
U.S. HIGHWAY 97A.

THE LONE MOUNTAIN FIRE IN THE STEHEKIN RIVER VALLEY AFFECTING
RESIDENTS AND RECREATIONISTS IN AND BELOW BOULDER CREEK AND THOSE
ON THE STEHEKIN RIVER ROAD BELOW THE BOULDER CREEK DRAINAGE.

THE CANYON...POISON... AND PEAVINE FIRES ABOVE THE CITIES OF
CASHMERE AND WENATCHEE.

THE BYRD CANYON FIRE AFFECTING RESIDENTS AND MOTORISTS IN CRUM
CANYON...OKLAHOMA GULCH...AND BYRD CANYON AS WELL AS HIGHWAY
97 BELOW THE CANYONS.

THE FIRST CREEK FIRE...AFFECTING RESIDENTS AND MOTORISTS ALONG
FIRST CREEK AND IN THE LAKE CHELAN STATE PARK...AS WELL AS THOSE
RESIDENTS THAT LIVE AT THE MOUTH OF GRANITE CREEK.

THE GOAT FIRE AFFECTING RESIDENTS AND MOTORISTS IN SPRAY CANYON
AND ALONG ANTIONE CREEK.

THE COLOCKUM-TARPS FIRE AFFECTING RESIDENTS AND MOTORISTS ALONG
COLOCKUM CREEK AND BELOW TARPISCAN ROAD.

THE EAGLE FIRE AFFECTING RESIDENTS AND MOTORISTS IN BJORK CANYON
AND EAGLE CREEK ROAD.

THE CHIWAUKUM CREEK FIRE AFFECTING HIGHWAY 2 AT COLOCKUM CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING OR DEBRIS FLOWS. IT TAKES AS LITTLE AS TEN
MINUTES OF HEAVY RAIN TO CAUSE FLASH FLOODING AND DEBRIS FLOWS IN
AND BELOW AREAS AFFECTED BY WILDFIRES. RAIN RUNS OFF ALMOST
INSTANTLY FROM BURNED SOILS...CAUSING CREEKS AND DRAINAGES TO
FLOOD AT A MUCH FASTER RATE THAN NORMAL. SOILS IN A BURN SCAR CAN
ALSO BECOME UNSTABLE WHEN IT RAINS...SOMETIMES RESULTING IN
DEBRIS FLOWS AND FALLING ROCK.

RUSHING WATER AND DEBRIS...INCLUDING TREES AND ROCKS...CAN DAMAGE
OR DESTROY CULVERTS...BRIDGES...ROADS...AND BUILDINGS. FLASH
FLOODING AND DEBRIS FLOW PATHS ARE UNPREDICTABLE AND CAN AFFECT
LOCATIONS THAT ARE MILES AWAY FROM A BURNED AREA.

FOR A DETAILED VIEW OF THE HAZARD AREA VISIT
HTTP://WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=OTX

&&

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.