Flash Flood Watch
Issued by NWS Spokane, WA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2
000
WGUS66 KOTX 221953
FFAOTX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE SPOKANE WA
1253 PM PDT TUE JUL 22 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 FROM WEDNESDAY MORNING INTO THE AFTERNOON. THIS BAND
WILL ALSO CONTAIN SOME EMBEDDED THUNDERSTORMS WITH LOCALLY HEAVIER
RAINFALL RATES POSSIBLE WITH FLASH FLOODING POSSIBLE. 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>043-230600-
/O.NEW.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
1253 PM PDT TUE JUL 22 2014

...FLASH FLOOD WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...

THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A

* FLASH FLOOD WATCH FOR A PORTION OF NORTH CENTRAL WASHINGTON...
  INCLUDING THE FOLLOWING AREAS...EAST SLOPES NORTHERN
  CASCADES...WESTERN EDGE OF THE OKANOGAN VALLEY AND WENATCHEE
  AREA.

* FROM WEDNESDAY MORNING THROUGH WEDNESDAY 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 FLASHING 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. 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 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 STEHEKING 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.