Nature Unleashes Its Fury

Has our luck came to an end here in the Pacific N.W.?

Areas at 500 Feet and above have 4 inches of snow, Lower areas are in the risk of flooding , and it appears that NOA can not keep up with the changes in the weather center.

Flood Advisory for Castle Rock, Washington
until 8:45 AM PST, Mon., Feb 28, 2011

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Issued by The National Weather Service
Portland, OR
Sun, Feb 27, 2011, 9:00 PM PST
THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR... EASTERN WASHINGTON COUNTY IN NORTHWEST OREGON... NORTHWESTERN CLACKAMAS COUNTY IN NORTHWEST OREGON... SOUTHEASTERN COLUMBIA COUNTY IN NORTHWEST OREGON... WESTERN MULTNOMAH COUNTY IN NORTHWEST OREGON... CLARK COUNTY IN SOUTHWEST WASHINGTON... SOUTH CENTRAL COWLITZ COUNTY IN SOUTHWEST WASHINGTON...

* UNTIL 845 AM PST.

* AT 551 AM PST NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN DEVELOPING ACROSS THE PORTLAND AND VANCOUVER METRO AREA THIS MORNING.

* THIS AREA OF HEAVY RAIN WILL REMAIN NEARLY STATIONARY THROUGH THE EARLY MORNING HOURS... BUT MAY CHANGE TO WET SNOW ESPECIALLY IN THE HILLS AS THE MORNING PROGRESSES. RAINFALL RATES OF ONE QUARTER TO ONE THIRD OF AN INCH PER HOUR WILL CONTINUE THROUGH THE EARLY MORNING HOURS ACROSS THE METRO AREA.

* AREAS WITH POOR DRAINAGE MAY HAVE MINOR FLOODING ISSUES THIS MORNING. ADDITIONALLY... SMALL STREAMS WILL LIKELY RISE FAIRLY RAPIDLY THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF AROUND AN INCH IS POSSIBLE WITHIN THE NEXT TWO TO FOUR HOURS IN THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE PONDING OF WATER ON HIGHWAYS... STREETS AND UNDERPASSES... IN URBAN AREAS WITH POOR OR OVERWHELMED DRAINAGE... AND WILL ALSO CAUSE ELEVATED LEVELS ON SMALL CREEKS AND STREAMS.

LANDSLIDES AND DEBRIS FLOWS ARE POSSIBLE DURING THIS FLOOD EVENT. PEOPLE... STRUCTURES AND ROADS LOCATED BELOW STEEP SLOPES... IN CANYONS AND NEAR THE MOUTHS OF CANYONS MAY BE AT SERIOUS RISK FROM RAPIDLY MOVING LANDSLIDES.

&&

Winter Weather Advisory for Castle Rock, Washington
From 5:00 AM PST, Mon., Feb 28, 2011 until 11:00 AM PST, Mon., Feb 28, 2011

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Issued by The National Weather Service
Portland, OR
Sun, Feb 27, 2011, 9:00 PM PST
... WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING FOR THE LOWER COLUMBIA AND FOR THE INTERSTATE 5 CORRIDOR IN COWLITZ COUNTY...

THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW... WHICH IS IN EFFECT UNTIL 11 AM PST THIS MORNING.

* TIMING... RAIN WILL GRADUALLY MIX WITH OR CHANGE TO A HEAVY WET SNOW THIS MORNING... ESPECIALLY IN THE HILLS. PRECIPITATION WILL DECREASE AROUND MIDDAY.

* ACCUMULATION... 1 TO 4 INCHES... WITH THE HEAVIEST AMOUNTS IN THE HILLS ABOVE 500 FEET IN ELEVATION.

* IMPACTS... A PERIOD OF WET SNOW WILL LIKELY IMPACT PORTIONS OF INTERSTATE 5 AND HIGHWAY 30 THIS MORNING. HOWEVER THE HEAVIER ACCUMULATIONS WILL LIKELY BE IN THE HILLS ABOVE 500 FEET IN ELEVATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES... AND USE CAUTION WHILE DRIVING.

&&

More Information
... ANOTHER COLD WINTER STORM HEADING FOR THE PACIFIC NORTHWEST...

.A STORM SYSTEM ORIGINATING IN THE GULF OF ALASKA WILL BRING HEAVY SNOW TO THE MOUNTAINS OF NORTHWEST OREGON AND SOUTHWEST WASHINGTON THROUGH THIS EVENING. SNOW HAS ALREADY BEGUN IN THE MOUNTAINS OF SOUTHERN WASHINGTON AND EXTREME NORTHERN OREGON... BUT THE PROSPECTS FOR HEAVIER SNOW WILL SPREAD DOWN FROM NORTH TO SOUTH THROUGHOUT THE DAY TODAY. WHILE THE SNOW LEVEL HAS RISEN SOMEWHAT AHEAD OF THE FRONT... IT IS EXPECTED TO FALL BACK TO VERY LOW LEVELS ALONG WITH THE FRONT. WET SNOW IS EVEN POSSIBLE DOWN TO THE VALLEY FLOOR DURING THE PERIOD OF HEAVIEST PRECIPITATION ALONG WITH THE FRONT. FOR THE CASCADES... IN ADDITION TO THE HEAVY SNOW... STRONG WINDS MAY BRING BLIZZARD CONDITIONS WITH NEAR ZERO VISIBILITY.

Special Weather Statement for Castle Rock, Washington

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Issued by The National Weather Service
Portland, OR
Sat, Feb 26, 2011, 9:00 PM PST
... A SERIES OF SIGNIFICANT WINTER STORMS TO IMPACT SOUTHWEST WASHINGTON AND NORTHWEST OREGON THROUGH THE MIDDLE OF THIS WEEK...

A SERIES OF SIGNIFICANT WINTER STORMS WILL IMPACT SOUTHWEST WASHINGTON AND NORTHWEST OREGON EARLY THIS WEEK... WITH THE FIRST STRONG COLD FRONT SWEEPING INTO THE AREA TONIGHT AND MONDAY... AND A SECOND STRONGER LOW EXPECTED LATE TUESDAY NIGHT AND WEDNESDAY.

THE FIRST STRONG COLD FRONT WILL BRING STRONG WINDS TO THE COAST AND COASTAL MOUNTAINS... AND HIGH WIND WARNINGS ARE IN EFFECT. WINDS WILL BE BLUSTERY IN THE VALLEYS... AND A WIND ADVISORY IS IN EFFECT. HEAVY SNOW IS EXPECTED TONIGHT AND MONDAY INTO MONDAY NIGHT... AND WINTER STORM WARNINGS ARE IN EFFECT INTO MONDAY NIGHT FOR THE CASCADES... FOOTHILLS... AND THE COASTAL MOUNTAINS. THE STRONG FRONT AND HEAVY PRECIPITATION RATES MONDAY MAY EVEN CAUSE THE SNOW LEVEL TO BE QUITE LOW IN THE VALLEYS AS WELL... BUT THIS IS LESS CERTAIN. WINDS IN THE MOUNTAINS WILL CAUSE AREAS OF BLOWING AND DRIFTING OF SNOW.

THE FRONT WILL STALL SOUTH OF SALEM MONDAY NIGHT THEN LIFT BACK NORTH TUESDAY BUT SNOW LEVELS WILL BE SLOW TO RISE. EXPECT MORE VALLEY RAIN AND MOUNTAIN SNOW WITH RELATIVELY LOW SNOW LEVELS.

THE STRONGEST SYSTEM OF THE BATCH WILL BE A STRONG LOW THAT LIFTS NORTH ALONG THE COAST LATER TUESDAY NIGHT AND WEDNESDAY. THIS SYSTEM WILL LIKELY BRING ANOTHER ROUND OF VERY STRONG WINDS TO THE COAST... WITH GALES OR POSSIBLY EVEN STORM FORCE WINDS POSSIBLE FOR THE COASTAL WATERS. STRONG WINDS ARE POSSIBLE OVER THE COASTAL MOUNTAINS... WITH QUITE WINDY CONDITIONS POSSIBLE OVER THE REMAINDER OF THE AREA EAST OF THE COASTAL MOUNTAINS. SNOW LEVELS WILL PEAK WEDNESDAY MORNING BEFORE COOLER AIR SPREADS IN AND LOWERS SNOW LEVELS BACK DOWN TO 2000 FEET OR LOWER LATER WEDNESDAY AND WEDNESDAY NIGHT.

BE PREPARED FOR THE WIND... RAIN... AND SNOW THIS WEEK. TRAVEL THROUGH THE MOUNTAINS WILL BE DIFFICULT AT TIMES.

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