AKZ220-231800-
/O.CON.PAFG.FA.W.0003.000000T0000Z-130523T1800Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/
YUKON FLATS AND SURROUNDING UPLANDS AK-
1223 AM AKDT WED MAY 22 2013



...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 AM AKDT THURSDAY 
FOR THE YUKON RIVER AT FORT YUKON...

AT 1200 MIDNIGHT WEDNESDAY MORNING INFORMATION WAS RECEIVED FROM A 
FORT YUKON RESIDENT THAT THE ICE JAM HAD BROKEN AND THE WATER LEVEL 
IS RISING. IT WAS OBSERVED THAT ICE CHUNKS ARE FLOWING DOWN ONE SIDE 
OF THE CHANNEL.

THIS SUDDEN BREAK OF THE JAM HAS CAUSED THE WATER LEVEL TO BEGIN TO 
RISE SLOWLY. A RUSH OF ICE AND WATER IS STILL POSSIBLE AND MAY CAUSE 
SUDDEN FLOODING SIMILAR TO A DAM BREAK. THE JAM APPEARS TO HAVE 
RELEASED AND IS SLOWLY RELEASING THE UPSTREAM WATER...BUT WITH 
INCREASED SNOW MELT IT IS LIKELY THAT THE WATER LEVEL WILL RISE MORE 
RAPIDLY. FORT YUKON IS CURRENTLY FLOODED IN LOW LYING AREAS ON  THE 
WEST SIDE OF TOWN INCLUDING THE BALL FIELD...THE OLD TANK      
FARM...SEVERAL HOMES...THE AREA AROUND THE TRIBAL HALL AND ONE       
RUNWAY APRON AT THE AIRPORT. 

MAJOR FLOODING THROUGHOUT THE TOWN OF FORT YUKON IS EXPECTED TO      
DEVELOP BETWEEN NOW AND WEDNESDAY MORNING. WHILE FLUCTUATIONS IN 
RIVER LEVELS ARE OCCURRING...THE REAL DANGER IS FROM THE ICE JAM 
UPSTREAM OF FORT YUKON THAT HAS JUST RELEASED. THE ICE JAM UPSTREAM 
HAS RELEASED AND THE WATER LEVEL IS EXPECTED TO RISE MORE RAPIDLY 
AND WILL PUSH WATER AND ICE INTO FORT YUKON CAUSING MAJOR FLOODING. 
THIS IS A DANGEROUS SITUATION. 



A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. WATER
LEVELS CAN RISE RAPIDLY AND PEOPLE ALONG THE RIVER ARE ENCOURAGED TO
MOVE PROPERTY TO HIGHER GROUND AWAY FROM THE RIVER BANK.

LAT...LON 6656 14556 6660 14528 6646 14486 6641 14516

AKZ152-222000-
/X.EXT.PAFC.FA.A.0003.000000T0000Z-130523T1800Z/
/00000.0.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LOWER KUSKOKWIM VALLEY-
INCLUDING THE CITIES OF...ANIAK...SLEETMUTE
729 PM AKDT TUE MAY 21 2013



...FLOOD WATCH NOW IN EFFECT THROUGH THURSDAY MORNING FOR THE
KUSKOKWIM RIVER NEAR CROOKED CREEK...

THE FLOOD WATCH IS NOW IN EFFECT FOR

* LOWER KUSKOKWIM VALLEY. 

* THROUGH THURSDAY MORNING. 

* FOR ICE JAM FLOODING. 

* THE ICE IS STILL SOLID DOWNSTREAM OF CROOKED CREEK AT RABBIT 
ISLAND. IF THE BREAKUP FRONT MOVES QUICKLY PAST CROOKED CREEK 
A JAM COULD RESULT AND WATER LEVELS COULD RISE QUICKLY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING.

YOU ARE ENCOURAGED TO CLOSELY MONITOR THIS WEATHER SITUATION.
PREPARATION FOR THIS POTENTIALLY DANGEROUS WEATHER EVENT SHOULD
BEGIN NOW.

&&

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM AKDT WEDNESDAY
FOR LOW HUMIDITY FOR DELTA JUNCTION AND VICINITY...

AKZ223-221500-
/X.NEW.PAFG.FW.W.0001.130522T1900Z-130523T0400Z/
DELTANA AND TANANA FLATS-
250 PM AKDT TUE MAY 21 2013



...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM AKDT WEDNESDAY
FOR LOW HUMIDITY...

THE NATIONAL WEATHER SERVICE IN FAIRBANKS HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 8 PM AKDT WEDNESDAY. 

* RELATIVE HUMIDITY...AS LOW AS 12 PERCENT.

* WINDS...SOUTHEAST 5 TO 15 MPH. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CONDITIONS ARE OCCURRING OR WILL
OCCUR WHICH COULD LEAD TO THE DEVELOPMENT OF LARGE AND DANGEROUS
FIRES. IT IS DIRECTED TOWARD FIRE AGENCIES...AND THROUGH THEM...
TO THE PUBLIC.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

&&

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
WATERS FROM DEERFIELD BEACH TO OCEAN REEF FL FROM 20 TO 60 NM
EXCLUDING THE TERRITORIAL WATERS OF BAHAMAS
COASTAL WATERS FROM DEERFIELD BEACH TO OCEAN REEF FL OUT 20 NM

* UNTIL 945 AM EDT

* AT 920 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM...CAPABLE OF PRODUCING A WATERSPOUT...ABOUT 10 NM
SOUTHEAST OF TRIUMPH REEF...MOVING NORTHEAST AT 5 KNOTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AS THUNDERSTORMS MOVE OVER THE WATER...MARINERS CAN EXPECT STRONG
GUSTY WINDS...HIGH SEAS...DANGEROUS LIGHTNING...AND HEAVY RAIN. MOVE
TO SAFE HARBOR OR STAY CLOSE TO SHORE UNTIL THE STORM PASSES. IF
CAUGHT ON THE OPEN W
668
ATER...MAKE SURE ALL SAFETY GEAR IS AVAILABLE AND
LIFE JACKETS ARE BEING WORN BY YOU AND YOUR CREW.

&&

LAT...LON 2569 8000 2562 7964 2523 7982 2530 8002
TIME...MOT...LOC 1322Z 188DEG 6KT 2539 7996

...THE FLOOD ADVISORY CONTINUES FOR THE MISSISSIPPI RIVER...
MISSISSIPPI RIVER NEAR ARKANSAS CITY AFFECTING CHICOT...DESHA...
BOLIVAR AND WASHINGTON COUNTIES

ARC017-041-MSC011-151-230829-
/O.CON.KJAN.FL.Y.0004.000000T0000Z-130525T2200Z/
/ARSA4.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
929 PM CDT TUE MAY 21 2013



THE FLOOD ADVISORY CONTINUES FOR THE MISSISSIPPI RIVER NEAR ARKANSAS CITY.
* UNTIL SATURDAY AFTERNOON.
* AT  9:00 PM TUESDAY THE STAGE WAS 36.5 FEET.
* FLOOD STAGE IS 37.0 FEET.
* FORECAST...THE RIVER WILL CONTINUE SLOWLY FALLING OVER THE NEXT SEVERAL
DAYS..
* IMPACT...AT 35.0 FEET...THE ROAD TO DONALDSON POINT IS CUT OFF.

&&

FLOOD    OBSERVED        FORECAST 6AM       CREST
LOCATION      STG   STG DAY  TIME   WED   THU   FRI CREST TIME  DATE

LOWER MISSISSIPPI RIVER
ARKANSAS CITY  37  36.5 TUE 09 PM  36.1  35.2  34.5    FALLING

.GUSTY SOUTHWEST WINDS WILL OCCUR FROM EARLY AFTERNOON THROUGH THIS
EVENING AS A LARGE AREA OF LOW PRESSURE DEVELOPS OVER THE PACIFIC
NORTHWEST.

AZZ001-003-221900-
/O.EXT.KVEF.WI.Y.0022.130522T1900Z-130523T0200Z/
NORTHWEST PLATEAU-NORTHWEST DESERTS-
INCLUDING...COLORADO CITY...
PIPE SPRING NATIONAL MONUMENT...TUWEEP...MT TRUMBULL...KINGMAN...
GOLDEN VALLEY...DOLAN SPRINGS...VALENTINE...WIKIEUP...YUCCA
307 AM MST WED MAY 22 2013



...WIND ADVISORY NOW IN EFFECT FROM NOON TODAY TO 7 PM MST THIS
EVENING...

THE WIND ADVISORY IS NOW IN EFFECT FROM NOON TODAY TO 7 PM MST THIS
EVENING FOR THE NORTHWEST PLATEAU AND NORTHWEST DESERTS OF ARIZONA.

* WINDS: SOUTH TO SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 45 MPH.

* TIMING: WIND SPEEDS WILL PEAK BETWEEN 2 PM AND 5 PM THEN GUSTS
SHOULD DROP BELOW 40 MPH AFTER 7 PM.

* LOCATIONS: COLORADO CITY...PIPE SPRING NATIONAL MONUMENT...
TUWEEP...MT TRUMBULL...KINGMAN...GOLDEN VALLEY... DOLAN 
SPRINGS...VALENTINE...WIKIEUP...YUCCA 

* IMPACTS: STRONG CROSSWINDS ARE POSSIBLE ON AREA HIGHWAYS WITH 
LOCAL AREAS OF BLOWING DUST POSSIBLE WHICH MAY RAPIDLY LOWER 
VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DRIVERS OF MOTORCYLES...VANS...CAMPERS...TRAILERS...AND ANY HIGH-
PROFILE VEHICLE SHOULD BE ALERT TO THE DANGER OF THESE
WINDS...ESPECIALLY WHEN DRIVING ALONG EAST-WEST ROADS.

&&

...HIGH SURF ADVISORY IN EFFECT UNTIL MIDDAY THURSDAY FOR THE
CENTRAL COAST INCLUDING SAN LUIS OBISPO COUNTY AND THE WESTERN
COAST OF SANTA BARBARA COUNTY...

...HIGH SURF ADVISORY IN EFFECT UNTIL MIDDAY THURSDAY FOR THE
VENTURA AND LOS ANGELES COUNTY COAST...

.GALE FORCE NORTHWESTERLY WINDS WILL CONTINUE ACROSS PORTIONS OF
THE COASTAL WATERS THROUGH THURSDAY. THE BUILDING WIND-GENERATED
WAVES WILL PROPAGATE TOWARD THE COAST AND PRODUCE LARGE BREAKERS
AT MANY OF THE WEST AND NORTHWEST FACING BEACHES.

CAZ034-035-222000-
/O.CON.KLOX.SU.Y.0014.000000T0000Z-130523T1800Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
258 AM PDT WED MAY 22 2013



...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
THURSDAY...

* WAVES AND SURF...SURF WILL BUILD TO 9 TO 13 FEET. CHOPPY WAVE 
CONDITIONS ARE EXPECTED DUE TO STRONG WINDS OVER THE WATERS. 

* TIMING...HIGH SURF CONDITIONS WILL CONTINUE THROUGH MIDDAY
THURSDAY. 

* IMPACTS...LARGE BREAKERS AND THE HIGH RISK OF RIP CURRENTS 
WILL MAKE SWIMMING DANGEROUS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

...UNSEASONABLY COLD WEATHER THIS WEEK FOR INTERIOR NORTHWEST
CALIFORNIA...

CAZ003-222300-
/O.NEW.KEKA.FR.Y.0019.130523T0900Z-130523T1500Z/
/O.CON.KEKA.FR.Y.0018.000000T0000Z-130522T1500Z/
NORTH COAST INTERIOR-
255 AM PDT WED MAY 22 2013



...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING...
...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM PDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 8 AM PDT THURSDAY. A
FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING. 

* LOW TEMPERATURES...MID TO UPPER 30S...WITH SOME UPPER 20S AND
LOWER 30S IN THE COLDEST VALLEYS.

* LOCATIONS...INTERIOR DEL NORTE AND HUMBOLDT COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THOSE WITH AGRICULTURAL INTERESTS ARE ADVISED TO PROTECT
SENSITIVE VEGETATION. ADDITIONALLY...SENSITIVE POTTED PLANTS
NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT INSIDE.

A FROST ADVISORY MEANS WIDESPREAD FROST IS EXPECTED TO DEVELOP
DURING THE GROWING SEASON.

&&

...UNSEASONABLY COLD WEATHER THIS WEEK FOR INTERIOR NORTHWEST
CALIFORNIA...

CAZ004-222300-
/O.UPG.KEKA.FZ.A.0003.130523T0900Z-130523T1500Z/
/O.NEW.KEKA.FZ.W.0007.130523T0900Z-130523T1500Z/
/O.CON.KEKA.FZ.W.0006.000000T0000Z-130522T1500Z/
UPPER TRINITY RIVER-
255 AM PDT WED MAY 22 2013



...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING...
...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM PDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 8 AM PDT THURSDAY. THE
FREEZE WATCH IS NO LONGER IN EFFECT. A FREEZE WARNING REMAINS IN
EFFECT UNTIL 8 AM PDT THIS MORNING. 

* LOW TEMPERATURES...UPPER 20S TO LOWER 30S EARLY THIS MORNING AND
AGAIN EARLY THURSDAY MORNING.

* LOCATIONS...TRINITY COUNTY.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

THOSE WITH AGRICULTURAL INTERESTS ARE ADVISED TO PROTECT
SENSITIVE VEGETATION. ADDITIONALLY...SENSITIVE POTTED PLANTS
NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT INSIDE.

A FREEZE WARNING MEANS FREEZING TEMPERATURES ARE EXPECTED ACROSS
A LARGE AREA DURING THE GROWING SEASON.

&&

...FREEZING TEMPERATURES EXPECTED EARLY THIS MORNING AND AGAIN
TONIGHT INTO EARLY THURSDAY MORNING...

AN UNSEASONABLY COLD AIRMASS HAS MOVED OVER THE REGION. AS SKIES
CLEAR AND WINDS DECREASE TONIGHT...TEMPERATURES WILL FALL TO OR
BELOW FREEZING IN MANY LOCATIONS. SENSITIVE VEGETATION MAY BE
AFFECTED BY COLD TEMPERATURES.

CAZ084-ORZ029-221600-
/O.NEW.KMFR.FZ.A.0008.130523T0900Z-130523T1600Z/
/O.CON.KMFR.FZ.W.0018.000000T0000Z-130522T1600Z/
NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES-KLAMATH BASIN-
INCLUDING THE CITIES OF...TULELAKE...DORRIS...ALTAMONT...
KLAMATH FALLS
219 AM PDT WED MAY 22 2013



...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING...
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A FREEZE
WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
MORNING. A FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS
MORNING. 

* TEMPERATURES...26 TO 30. 

* TEMPERATURE INVERSION...THERE WILL BE NO INVERSION AND COLD 
AIR ALOFT WILL BE IN PLACE.

* LOCATIONS INCLUDE: ALTAMONT...KLAMATH FALLS...TULELAKE... 
DORRIS.

* IMPACTS...SENSITIVE VEGETATION COULD BE DAMAGED OR KILLED IF
LEFT UNPROTECTED INTO EARLY THIS MORNING AND AGAIN TONIGHT INTO THURSDAY
MORNING.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.

&&

...A FIRE WEATHER WATCH FOR GUSTY WINDS...LOW HUMIDITY VALUES AND
DRY FUELS...REMAINS IN EFFECT FOR THURSDAY AFTERNOON AND EVENING
FOR FIRE WEATHER ZONE 224...WHICH INCLUDES THE SAN LUIS VALLEY...

COZ224-230215-
/O.CON.KPUB.FW.A.0008.130523T1800Z-130524T0100Z/
SAN LUIS VALLEY-
405 AM MDT WED MAY 22 2013



...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON
THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONE 224...

* AFFECTED AREA...FIRE WEATHER ZONE 224.

* WINDS...SOUTH 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 13 PERCENT.

* IMPACTS...CONDITIONS WILL BE FAVORABLE FOR RAPID RATES OF FIRE 
GROWTH AND SPREAD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

THE AIR QUALITY FORECASTS FOR NORTHERN VIRGINIA AND FREDERICK
COUNTY VIRGINIA ARE PROVIDED BY THE VIRGINIA DEPARTMENT OF
ENVIRONMENTAL QUALITY.  THE AIR QUALITY FORECAST FOR THE DC
METRO IS PROVIDED BY THE METROPOLITAN WASHINGTON COUNCIL OF
GOVERNMENTS.  AIR QUALITY FORECASTS FOR MARYLAND ARE PROVIDED
BY THE MARYLAND DEPARTMENT OF ENVIRONMENT.

DCZ001-MDZ004-009-013-016>018-VAZ042-052>054-222000-
DISTRICT OF COLUMBIA-FREDERICK MD-MONTGOMERY-PRINCE GEORGES-
CHARLES-ST. MARYS-CALVERT-LOUDOUN-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-
425 PM EDT TUE MAY 21 2013



THE FORECAST WEDNESDAY FOR THE DC METRO AREA IS CODE LEVEL
YELLOW...WHICH IS MODERATE...AND MEANS PEOPLE UNUSUALLY SENSITIVE
TO AIR POLLUTION MAY BE MILDLY AFFECTED.  PRIMARY POLLUTANT
WILL BE PARTICLES.

FOR MORE INFORMATION ON GROUND-LEVEL OZONE AND FINE
PARTICLES...VISIT WWW.CLEANAIRPARTNERS.NET.

...UPDATED TO START LAKE WIND ADVISORY NOW INSTEAD OF 9 AM...

IDZ021-222100-
/O.EXT.KPIH.LW.Y.0007.130522T1225Z-130523T0300Z/
LOWER SNAKE RIVER PLAIN-
INCLUDING THE CITIES OF...POCATELLO...BLACKFOOT
625 AM MDT WED MAY 22 2013



...LAKE WIND ADVISORY NOW IN EFFECT UNTIL 9 PM MDT THIS EVENING...

* TIMING...NOW THROUGH 9PM TODAY. THE STRONGEST WINDS WILL OCCUR
FROM NOW THROUGH LATE AFTERNOON.

* WINDS...WEST TO SOUTHWEST AT 20 TO 25 MPH WITH GUSTS TO 35 MPH.

* LOCATIONS INCLUDE...AMERICAN FALLS RESERVOIR.

* IMPACTS...GUSTY SOUTHWEST WINDS WILL PRODUCE CHOPPY WATERS ON 
THE AMERICAN FALLS RESERVOIR. BOATERS IN SMALL CRAFT SHOULD 
USE EXTREME CAUTION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP
ON AREA LAKES. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING.

&&

MTZ009-048-222100-
/O.CON.KTFX.WS.A.0005.130523T0000Z-130523T1800Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
449 AM MDT WED MAY 22 2013



...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
THURSDAY MORNING FOR ELEVATIONS ABOVE 6000 FEET...

A WINTER STORM WATCH FOR ELEVATIONS ABOVE 6000 FEET REMAINS IN
EFFECT FROM THIS EVENING THROUGH THURSDAY MORNING. 

* TIMING AND MAIN IMPACT: RAIN WILL DEVELOP OVER THE ROCKY
MOUNTAIN FRONT THIS AFTERNOON AND BECOME MODERATE TO HEAVY AT
TIMES TONIGHT. SNOW LEVELS WILL GRADUALLY LOWER TO AROUND 6000
FEET AFTER MIDNIGHT. ABOVE 6000 FEET...SNOW MAY BE HEAVY AT
TIMES LATE TONIGHT THROUGH THURSDAY MORNING. 

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 5 TO 10 INCHES
ARE POSSIBLE ABOVE 6000 FEET WITH ISOLATED AMOUNTS NEAR 15
INCHES POSSIBLE ABOVE 7000 FEET ALONG THE CONTINENTAL DIVIDE.

* VISIBILITY: VISIBILITIES COULD BE REDUCED TO LESS THAN ONE 
HALF MILE AT TIMES. 

* ELEVATIONS: FOR ELEVATIONS ABOVE 6000 FEET.

* OTHER IMPACTS: ACCUMULATING SNOWFALL WILL MAINLY IMPACT AREAS
ABOVE THE ELEVATION OF MARIAS PASS ON HIGHWAY 2...HOWEVER
REDUCED VISIBILITY AND SLUSH BUILDUP ON THE ROADWAY ARE POSSIBLE
LATE TONIGHT THROUGH THURSDAY MORNING. THOSE VENTURING TO
ELEVATIONS ABOVE 6000 FEET IN GLACIER NATIONAL PARK AND THE BOB
MARCHALL WILDERNESS AREAS SHOULD BE PREPARED FOR WINTRY
CONDITIONS.

* LOCATIONS AFFECTED INCLUDE: ELEVATIONS ABOVE 6000 FEET IN THE
GLACIER NATIONAL PARK AND THE BOB MARSHALL WILDERNESS REGION.

* TO SEE A GRAPHICAL REPRESENTATION OF THIS HAZARD PLEASE 
VISIT. WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=TFX 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

...RENWICK DAM SITUATION...

A FLASH FLOOD WATCH IS IN AFFECT THROUGH MIDDAY WEDNESDAY FOR
AREAS DOWNSTREAM OF THE RENWICK DAM ON THE TONGUE RIVER. WATER
REMAINS VERY HIGH AT THE DAM SITE AND IS BEING HELD BACK BY A
CONSTRUCTED EARTHEN LEVEE ON TOP OF THE DAM STRUCTURE. OFFICIALS
CONTINUE TO MONITOR THE DAM AND THE NEW CLAY LEVEE FOR ANY
EROSION. 

THERE ARE SEVERAL RETENTION DAMS TO THE WEST OF THE RENWICK
DAM...AND WITH THE LARGE AMOUNT OF WATER IN THE AREA THESE DAMS
HAVE A HIGH POTENTIAL OF FAILING. IF ONE OF THESE OLDER DAMS TO
THE WEST DID FAIL...THE TEMPORARY LEVEE ON TOP OF THE RENWICK DAM
WOULD NO LONGER BE ABLE TO HOLD BACK WATER...AND MAJOR FLOODING
WOULD BE IMMINENT FOR THE CITIES OF AKRA...CAVALIER...AND
BATHGATE. PEMBINA COUNTY EMERGENCY MANAGEMENT ANTICIPATES A
POSSIBLE BREACH WITHIN THE NEXT 12 HOURS...AND HAVE ORDERED A
MANDATORY EVACUATION FOR THE AREA IMMEDIATELY DOWNSTREAM OF THE
RENWICK DAM...INCLUDING THE CITY OF CAVALIER.

NDZ008-221900-
/O.CON.KFGF.FF.A.0001.000000T0000Z-130522T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PEMBINA-
INCLUDING THE CITY OF...CAVALIER
1113 PM CDT TUE MAY 21 2013



...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY
AFTERNOON...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF NORTHEAST NORTH DAKOTA...INCLUDING THE FOLLOWING
AREAS IN PEMBINA COUNTY ALONG THE TONGUE RIVER DOWNSTREAM OF THE
RENWICK DAM...AKRA...CAVALIER AND BATHGATE.

* THROUGH WEDNESDAY AFTERNOON

* WATER REMAINS VERY HIGH AT THE RENWICK DAM AND IS BEING HELD
BACK BY A CONSTRUCTED EARTHEN LEVEE ON TOP OF THE DAM STRUCTURE.
OFFICIALS CONTINUE TO MONITOR THE DAM AND THE NEW CLAY LEVEE FOR
ANY EROSION.

* THERE ARE SEVERAL RETENTION DAMS TO THE WEST OF THE RENWICK
DAM...AND WITH THE LARGE AMOUNT OF WATER IN THE AREA THESE DAMS
HAVE A HIGH POTENTIAL OF FAILING. IF ONE OF THESE OLDER DAMS TO
THE WEST DID FAIL...THE TEMPORARY LEVEE ON TOP OF THE RENWICK
DAM WOULD NO LONGER BE ABLE TO HOLD BACK WATER...AND MAJOR
FLOODING WOULD BE IMMINENT FOR THE CITIES OF
AKRA...CAVALIER...AND BATHGATE.

* PEMBINA COUNTY EMERGENCY MANAGEMENT ANTICIPATES A POSSIBLE
BREACH WITHIN THE NEXT 12 HOURS...AND HAVE ORDERED A MANDATORY
EVACUATION FOR THE 
162
AREA IMMEDIATELY DOWNSTREAM OF THE RENWICK
DAM...INCLUDING THE CITY OF CAVALIER.

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

NVZ030-034-041-231300-
/O.NEW.KLKN.HZ.W.0001.130523T0900Z-130523T1300Z/
HUMBOLDT COUNTY-RUBY MOUNTAINS/EAST HUMBOLDT RANGE-
NORTHEASTERN NYE COUNTY-
INCLUDING THE FOLLOWING LOCATIONS...WINNEMUCCA...MCDERMITT...
PARADISE VALLEY...GOLCONDA SUMMIT...SECRET PASS...
LAMOILLE CANYON...HARRISON PASS...DUCKWATER...CURRANT SUMMIT
258 AM PDT WED MAY 22 2013



...HARD FREEZE WARNING IN EFFECT FROM 2 AM TO 6 AM PDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN ELKO HAS ISSUED A HARD FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 6 AM PDT THURSDAY. 

* TEMPERATURES...MID 20S TO LOW 30S.

* TIMING...COLDEST TEMPERATURES WILL BE FROM 4AM TO 6AM 
THURSDAY MORNING. 

* LOCATIONS INCLUDE: WINNEMUCCA...MCDERMITT...PARADISE VALLEY... 
GOLCONDA SUMMIT...SECRET PASS...LAMOILLE CANYON...HARRISON 
PASS...DUCKWATER...CURRANT SUMMIT. 

* IMPACTS...FREEZING TEMPERATURES CAN KILL EXPOSED PLANTS AND HARM
ANIMALS. PLEASE PROTECT YOUR PLANTS AND ANIMALS FROM THE COLD.
OUTDOOR ENTHUSIASTS SHOULD PREPARE FOR COLD WEATHER.

...LATE SPRING STORM TO BRING SNOW TO THE BLUE MOUNTAINS THIS
MORNING...

.A UNSEASONABLY COLD LOW PRESSURE SYSTEM WILL REMAIN OVER THE
AREA TODAY AND DURING THE NEXT FEW DAYS. THIS SYSTEM IS COLD
ENOUGH FOR SNOW TO FALL AT ELEVATIONS ABOVE 300O FEET WITH
ACCUMULATING SNOW ABOVE 4000 FEET THIS MORNING.

ORZ502-503-WAZ030-221700-
/O.CON.KPDT.WW.Y.0014.000000T0000Z-130522T1700Z/
NORTHERN BLUE MOUNTAINS OF OREGON-
SOUTHERN BLUE MOUNTAINS OF OREGON-
NORTHWEST BLUE MOUNTAINS OF WASHINGTON-
INCLUDING THE CITIES OF...TOLLGATE...SKI BLUEWOOD RESORT
457 AM PDT WED MAY 22 2013



...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PDT THIS
MORNING ABOVE 4000 FEET...

A WINTER WEATHER ADVISORY ABOVE 4000 FEET REMAINS IN EFFECT UNTIL
10 AM PDT THIS MORNING. 

* SNOW ACCUMULATIONS: 2-4 INCHES ABOVE 4000 FEET WITH UP TO 2 
INCHES POSSIBLE AT LOCATIONS BETWEEN 3000 AND 4000 FEET. 

* ELEVATION: ABOVE 4000 FEET.

* TIMING: SNOW SHOWERS THIS MORNING.

* LOCATIONS INCLUDE: SKI BLUEWOOD RESORT...TOLLGATE...MEACHAM

* WINDS: SOUTH WIND 10 TO 15 MPH

* IMPACTS: INTERSTATE 84 AND OREGON HIGHWAY 204 WILL HAVE SNOW IN
PLACES AND MAY BECOME SLIPPERY THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW IS OCCURRING OR IS
EXPECTED TO DEVELOP AND ACCUMULATE. TRAVEL MAY BE HAZARDOUS...
ESPECIALLY ON BRIDGES...OVERPASSES...AND SECONDARY ROADS.
MOTORISTS ARE URGED TO USE EXTREME CAUTION...AND SLOW DOWN TO
ADJUST FOR RAPIDLY CHANGING DRIVING CONDITIONS AND REDUCED
VISIBILITIES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB
SITE AT WWW.WEATHER.GOV/PENDLETON.

&&