SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SEATTLE WA
539 AM PDT SAT OCT 13 2012
WAZ001-503>519-132300-
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-SOUTHWEST INTERIOR-
EAST PUGET SOUND LOWLANDS-WESTERN SKAGIT COUNTY-
EVERETT AND VICINITY-SEATTLE/BREMERTON AREA-TACOMA AREA-
ADMIRALTY INLET AREA-HOOD CANAL AREA-LOWER CHEHALIS VALLEY AREA-
OLYMPICS-EASTERN STRAIT OF JUAN DE FUCA-
WESTERN STRAIT OF JUAN DE FUCA-NORTH COAST-CENTRAL COAST-
WEST SLOPES NORTHERN CASCADES AND PASSES-
WEST SLOPES CENTRAL CASCADES AND PASSES-
539 AM PDT SAT OCT 13 2012
…LOCALLY HEAVY RAIN IS EXPECTED ACROSS PORTIONS OF WESTERN
WASHINGTON SUNDAY AFTERNOON AND SUNDAY NIGHT…
…WINDY CONDITIONS ARE LIKELY AT TIMES…ESPECIALLY ALONG THE COAST
AND IN THE NORTH INTERIOR…
A WARM FRONT WILL APPROACH THE AREA THIS AFTERNOON AND WILL LIFT
NORTH INTO SOUTHERN BRITISH COLUMBIA TONIGHT. RAIN WILL SPREAD INTO
THE AREA AHEAD OF THE FRONT BUT AS THE FRONT MOVES NORTH RAINFALL
RATES WILL TAPER OFF OVER WESTERN WASHINGTON.
THE FRONT WILL RETURN SLOWLY SOUTHWARD ACROSS THE AREA SUNDAY
AFTERNOON INTO SUNDAY NIGHT WITH RAIN…HEAVY AT TIMES…
ESPECIALLY IN THE MOUNTAINS AND ALONG THE COAST.
TOTAL RAINFALL AMOUNTS DURING THE PERIOD FROM LATE SATURDAY
AFTERNOON THROUGH EARLY MONDAY MORNING WILL LIKELY BE AROUND 3 TO
6 INCHES IN THE MOUNTAINS…WITH THE HEAVIEST PRECIPITATION OVER THE
OLYMPICS AND NORTH CASCADES. THE SNOW LEVEL WILL AVERAGE AROUND 8,000
FEET. RAINFALL OVER THE WESTERN WASHINGTON LOWLANDS WILL BE
LESS…FROM A HALF INCH TO UP TO AS HIGH AS TWO AND A HALF INCHES.
THE HEAVIEST RAIN IN THE LOWLANDS IS EXPECTED ALONG THE NORTH COAST.
DUE TO THE UNUSUALLY DRY ANTECEDENT CONDITIONS…RIVER FLOODING IS
NOT EXPECTED DURING THIS EPISODE. HOWEVER RIVERS WILL RISE SHARPLY.
BREEZY TO LOCALLY WINDY CONDITIONS ARE LIKELY AT TIMES DURING THIS
PERIOD…ESPECIALLY ALONG THE COAST AND IN THE NORTH INTERIOR.
SOME MINOR URBAN AND SMALL STREAM FLOODING IS POSSIBLE SUNDAY
AFTERNOON INTO SUNDAY NIGHT IF WIND-BLOWN LEAVES ARE ALLOWED TO CLOG
DRAINS AND CAUSE PONDING IN INTERSECTIONS…UNDERPASSES AND
LOW-LYING STREETS.
