STORM SUMMARY NUMBER 03 FOR PACIFIC NORTHWEST HEAVY RAINFALL
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
800 PM PDT THU OCT 13 2016

...MODERATE TO HEAVY RAIN MOVING ACROSS THE PACIFIC NORTHWEST AND
NORTHERN ROCKIES ALONG WITH GUSTY WINDS... 

FLASH FLOOD WATCHES...FLOOD WATCHES AND FLOOD ADVISORIES ARE IN
EFFECT FOR PORTIONS OF WASHINGTON...NORTHERN CALIFORNIA...AND
CENTRAL IDAHO.

HIGH WIND WATCHES...WARNINGS...AND WIND ADVISORIES ARE IN EFFECT
ACROSS THE PACIFIC NORTHWEST SOUTHWARD INTO NORTHERN CALIFORNIA
AND NEVADA.

FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV

AT 700 PM PDT...AN UPPER LEVEL DISTURBANCE PUSHING TOWARD THE
PACIFIC NORTHWEST WAS INTENSIFYING...WHICH IN TURN WAS ALSO
STRENGTHENING THE SURFACE LOW PRESSURE IN THE PACIFIC OCEAN. A
STRONG PACIFIC FRONT ATTACHED TO THIS DEEPENING LOW WAS ALSO
APPROACHING THE PACIFIC NORTHWEST...AND IN RESPONSE STRONG ONSHORE
FLOW ALONG THE COAST OF THE PACIFIC NORTHWEST WAS BRINGING AMPLE
AMOUNT OF MOISTURE ACROSS THE REGION. THE NATIONAL WEATHER SERVICE
DOPPLER RADAR AND SURFACE OBSERVATIONS SHOWED MODERATE TO HEAVY
RAINFALL FROM THE NORTHERN CALIFORNIA COAST NORTHWARD ACROSS
WASHINGTON AND BRITISH COLUMBIA. LIGHT TO MODERATE SHOWERS WERE
ALSO REPORTED EASTWARD PAST THE CASCADES INTO EASTERN WASHINGTON
AND NORTHERN IDAHO. THERE WAS ALSO SCATTERED SHOWERS REPORTED IN
EASTERN OREGON AND SOUTHERN IDAHO. WIND GUSTS OVER 90 MPH WERE
REPORTED IN WESTERN OREGON.

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 700 AM PDT WED OCT
12 THROUGH 700 PM PDT THU OCT 13...

...CALIFORNIA...
CRESCENT CITY/MC NAMARA FIELD         1.97                    

...OREGON...
BROOKINGS 4 NNW                       3.95                    
HARBOR                                2.50                    
ASTORIA                               2.05                    
NORTH BEND MUNI ARPT                  2.01                    
SILETZ 2.9 NNE                        1.52                    
PORTLAND INTL ARPT                    1.43                    
BROOKINGS                             1.40                    
SCAPPOOSE                             1.36                    
SALEM/MCNARY FIELD                    1.33                    
AURORA                                1.18                    

...WASHINGTON...
POTLATCH 2 N                          2.25                    
SHELTON/SANDERSON FIELD ARPT          2.21                    
HOODSPORT 3.7 WNW                     2.14                    
OCEAN SHORES 1.2 N                    2.14                    
QUILLAYUTE                            1.99                    
ABERDEEN 6.1 E                        1.88                    
HOQUIAM/BOWERAN ARPT                  1.79                    
BREMERTON NATL ARPT                   1.68                    
QUINAULT 2.2 NE                       1.60                    
MONTESANO 2.1 SSW                     1.42                    
VANCOUVER                             1.42                    
TACOMA NARROWS ARPT                   1.26                    
OLYMPIA ARPT                          1.11                    
SEATTLE/TACOMA INTL ARPT              1.04                    

...SELECTED PEAK WIND GUSTS IN MILES PER HOUR EARLIER IN THE
EVENT...

...MONTANA...
EAST GLACIER PARK 8 SE                67                    

...OREGON...
 OCEANSIDE 2 E                        99                    
 NETARTS 2 S                          94                    
 HARLAN 7 ESE                         92                    
 GARIBALDI 2 WNW                      77                    
 PACIFIC CITY                         69                    
 MANZANITA 1 SSW                      67                    
 HEBO 5 ESE                           64                    
 DISSTON 6 ESE                        63                    
 YACHATS 1 NW                         62                    
 HECETA HEAD 1 SSW                    61                    
 LINCOLN BEACH 1 N                    61                    
 CANNON BEACH                         59                    
 SOUTH BEACH 2 S                      59                    
 ROOSTER ROCK STATE 1 SW              55                    


THE STRONG PACIFIC COLD FRONT WILL COME ASHORE TONIGHT...BRINGING
WITH IT HEAVY RAIN AND GUSTY WINDS. AS THE COLD FRONT PUSHES
INLAND...RAIN WILL CONTINUE SPREADING ACROSS THE INTERMOUNTAIN
WEST AND NORTHERN ROCKIES BY EARLY FRIDAY MORNING. AS THE COLD
FRONT MOVES SOUTHEASTWARD ACROSS THE INTERMOUNTAIN WEST ON
FRIDAY...PRECIPITATION WILL ALSO INCREASE IN THIS REGION.
MEANWHILE...ONSHORE FLOW BEHIND THE FRONT WILL GENERATE LIGHT TO
MODERATE SHOWERS ALONG COAST FROM NORTHERN CALIFORNIA TO
WASHINGTON. BY SATURDAY AFTERNOON...A POTENTIALLY MORE POWERFUL
STORM WILL APPROACH THE OREGON COAST. HEAVY RAINFALL WILL START
AGAIN AND CONTINUE INTO SUNDAY. TOTAL PRECIPITATION FROM THESE
STORMS WILL RANGE FROM 4 TO 7 INCHES ACROSS THE PACIFIC NORTHWEST
FROM THE CASCADES WESTWARD. THE HIGHER TERRAIN AND FAVORED UPSLOPE
AREAS COULD SEE OVER 20 INCHES. EAST OF THE CASCADES... RAINFALL
TOTALS WILL RANGE FROM 1 TO 3 INCHES WITH FAVORED UPSLOPE AREAS OF
THE NORTHERN ROCKIES WITH THE POTENTIAL FOR UP TO 6 INCHES. WITH
SUCH A SIGNIFICANT AMOUNT OF RAINFALL EXPECTED...FLOODING COULD BE
A THREAT ESPECIALLY ACROSS THE PACIFIC NORTHWEST. 

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE WEATHER PREDICTION
CENTER AT 200 AM PDT. PLEASE REFER TO YOUR LOCAL NATIONAL WEATHER
SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS EVENT.

FANNING