Red Flag Warning 16, NWS Fairbanks, AK

000 
WWAK62 PAFG 202253
RFWWCZ

RED FLAG WARNING
NATIONAL WEATHER SERVICE FAIRBANKS AK
253 PM ADT SUN MAY 20 2007

...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM ADT MONDAY
FOR LOW HUMIDITY FOR A PORTION OF THE WESTERN INTERIOR...

AKZ216-211630-
/X.EXT.PAFG.FW.W.0016.000000T0000Z-070522T0500Z/
LOWER KOYUKUK AND MIDDLE YUKON VALLEYS-
253 PM ADT SUN MAY 20 2007

...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM ADT MONDAY
FOR LOW HUMIDITY...

THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 9 PM ADT MONDAY. 

DISCUSSION...MINIMUM HUMIDITIES OF 15 PERCENT OR LESS WILL CONTINUE
THROUGH THIS EVENING. DESPITE RECOVERY ABOVE 15 PERCENT TONIGHT...HUMIDITIES
WILL FALL AGAIN TO 15 PERCENT OR LESS MONDAY AFTERNOON AND EVENING...THUS
THE RED FLAG WARNING HAS BEEN EXTENDED UNTIL 9 PM ADT MONDAY.

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.

$$

000 
WWAK62 PAFG 211543
RFWWCZ

RED FLAG WARNING
NATIONAL WEATHER SERVICE FAIRBANKS AK
743 AM ADT MON MAY 21 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM ADT THIS
EVENING FOR LOW HUMIDITY FOR A PORTION OF THE WESTERN
INTERIOR...

AKZ216-212330-
/X.CON.PAFG.FW.W.0016.000000T0000Z-070522T0500Z/
LOWER KOYUKUK AND MIDDLE YUKON VALLEYS-
743 AM ADT MON MAY 21 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM ADT THIS
EVENING FOR LOW HUMIDITY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM ADT THIS EVENING.

DISCUSSION...MINIMUM HUMIDITIES OF 15 PERCENT OR LESS WILL OCCUR
THIS AFTERNOON AND CONTINUE THROUGH THE EARLY EVENING. RECOVERY
ABOVE 15 PERCENT WILL OCCUR AFTER 9 PM ADT TONIGHT...THUS THE RED
FLAG WARNING IS NOW IN EFFECT UNTIL 9 PM ADT MONDAY.

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.

$$

000 
WWAK62 PAFG 212236
RFWWCZ

RED FLAG WARNING
NATIONAL WEATHER SERVICE FAIRBANKS AK
236 PM ADT MON MAY 21 2007

...RED FLAG WARNING IS CANCELLED FOR A PORTION OF THE WESTERN
INTERIOR...

AKZ216-212345-
/X.CAN.PAFG.FW.W.0016.000000T0000Z-070522T0500Z/
LOWER KOYUKUK AND MIDDLE YUKON VALLEYS-
236 PM ADT MON MAY 21 2007

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN FAIRBANKS HAS CANCELLED THE RED
FLAG WARNING. 

MINIMUM HUMIDITIES WILL REMAIN ABOVE 15 PERCENT THIS AFTERNOON
AND EVENING...THUS THE RED FLAG WARNING IS CANCELLED.

$$

NORTHERN ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FAIRBANKS AK
558 AM ADT SUN MAY 20 2007

.DISCUSSION...THE LOW ENERGY PATTERN THAT HAS BEEN RUNNING FOR
DAYS OVER THE ALASKA MAINLAND CONTINUES TODAY. HIGH PRESSURE ALOFT
REMAINS CENTERED OVER THE REALM...AND IS FORECAST BY THE MODELS TO
SHIFT TO THE SOUTHERN YUKON ON MONDAY NIGHT. FROM THERE THROUGH THE
REST OF THE WEEK THE FAMILIAR RIDGE OF HIGH PRESSURE ALOFT FROM
BRITISH COLUMBIA UP TO EASTERN ALASKA WILL HOLD. THIS IS A
FAVORABLE PATTERN FOR WARMING TEMPERATURES...WHICH SHOULD BE
REACHING THE LOWER 70S IN THE INTERIOR BY MID WEEK.

WIND FLOW ALOFT WILL BE SOUTHERLY OVER THE MAINLAND STARTING
TUESDAY...AND WILL INCREASE SOME AFTER THAT. THIS IS EXPECTED TO
BRING IN MORE MOISTURE AT MIDDLE AND HIGH ALTITUDES...MOISTURE
WHICH SHOULD GRADUALLY MIX AND DIFFUSE ITS WAY DOWNWARD AND
SLIGHTLY MODERATE THE LONGSTANDING DRYNESS OF THE MONTH. THE
CIRCULATION EXPECTED BY WEEKS END IS CONDUCIVE TO PARTLY CLOUDY
AND DRY WEATHER IN THE INTERIOR. THIS WILL ALSO STABILIZE THE
AIRMASS OVER THE MAINLAND TO SOME EXTENT...SO THE CHANCES FOR
SHOWERS OVER THE INTERIOR ARE GOING TO DECREASE BY THURSDAY...AND
LITTLE RAIN IS IN THE FORECAST BY THAT TIME ONWARD.

THE MORNING SATELLITE IMAGERY SHOWS A BAND OF CLOUDS...RAIN SHOWER
DEBRIS...EXTENDING FROM THE LOWER YUKON VALLEY UP TO THE HIGHLANDS
NORTH OF TANANA. THIS CLOUD DECK SERVES TO PREPOSITION THE
MOISTURE NEEDED FOR SHOWERS...AND ISOLATED THUNDERSTORMS...IN
PRETTY MUCH THE SAME AREA THAT THEY OCCURRED YESTERDAY.

THE PALL OF LOW CLOUDS AND DENSE FOG REMAINS OVER THE INLAND
COASTAL PLAIN OF THE ARCTIC...AND THE ARCTIC COAST EAST OF ICY
CAPE. A SHIFT IN THE WINDS TO THE WEST YESTERDAY BROUGHT AREAS OF
DENSE FOG INTO THE KOTZEBUE SOUND AREA AND THIS PATTERN CONTINUES
TODAY. DOWN FROM BERING STRAIT TO SAINT LAWRENCE ISLAND...FOG IS
SURPRISINGLY SCANT THIS MORNING...CLEAR SKIES ARE REPORTED JUST
ABOUT EVERYWHERE. A WAGER ON MUCH OF A CONTINUATION OF THIS WOULD
BE AN AGGRESSIVE MOVE.

COASTAL HAZARD POTENTIAL DAYS 3 AND 4...NONE

&&

.FIRE WEATHER...THE ALASKA LIGHTNING DETECTION SYSTEM REPORTED 69
STRIKES ON SATURDAY...ALL IN THE KUSKOKWIM VALLEY. SO FAR THIS
SEASON...SOUTHWEST ALASKA HAS ALMOST HAD A MONOPOLY ON LIGHTNING.
THE RELATIVE HUMIDITY WILL AGAIN DROP BELOW 15 PERCENT IN SOME
NORTHEAST INTERIOR LOCATIONS. RECENTLY...LOCATIONS AT MODERATE
ELEVATION ABOVE THE VALLEY FLOORS HAVE HAD THE LOWEST HUMIDITY IN
MID AFTERNOON. IN MOST PLACES WINDS IN THE AFTERNOON AND EVENING
WILL BE LIGHT...BUT ONCE AGAIN...MID SLOPES AND HILL TOPS WILL
HAVE BRISK WINDS. FOR EXAMPLE...GRAPHITE LAKE IN THE UPPER YUKON
VALLEY HAD NORTHEAST WINDS TO 25 MPH ON SATURDAY.

&&

.HYDROLOGY...STILL UNEVENTFUL. THERE IS NO RAIN TO BRING UP THE
RIVERS WHERE THE ICE HAS GONE OUT...AND NOT MUCH RUNOFF PUSHING
OUT THE ICE THAT REMAINS ON THE LOWER YUKON AND KOBUK RIVERS. WEB
CAMERAS STILL SHOW WINTER SNOW PACK AND SUNSHINE...INLAND FROM THE
COASTAL FOG...UP IN THE ARCTIC.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
RED FLAG WARNING FOR AKZ219-AKZ220-AKZ224.
&&

TF MAY 07