STORM SUMMARY NUMBER 2 FOR NORTHERN AND CENTRAL CALIFORNIA HEAVY
RAINFALL AND MOUNTAIN SNOW
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
700 PM PST MON FEB 20 2017

...WIDESPREAD HEAVY RAIN AND FLOODING IMPACTING NORTHERN AND
CENTRAL CALIFORNIA...

FLOOD WARNINGS ARE IN EFFECT ACROSS THE INTERIOR PORTION OF
NORTHERN CALIFORNIA...PARTS OF NORTHERN NEVADA...AND INTO SOUTHERN
IDAHO.

WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES ARE IN EFFECT
ALONG THE SIERRAS NEVADA AND HIGHER ELEVATIONS OF NORTHERN
CALIFORNIA...SOUTHERN OREGON...AS WELL AS PORTIONS OF THE NORTHERN
ROCKIES.

HIGH WIND WARNINGS AND WIND ADVISORIES ARE IN EFFECT ACROSS MUCH
OF NORTHERN AND CENTRAL CALIFORNIA...THE GREAT BASIN...ACROSS THE
SOUTHERN HALF OF OREGON...AS WELL AS SOUTHEASTERN WYOMING.

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

AT 600 PM PST...A DEVELOPING LOW PRESSURE SYSTEM WITH AN ESTIMATED
CENTRAL PRESSURE OF 998 MB...29.47 INCHES...WAS APPROACHING
NORTHERN CALIFORNIA.  THE ASSOCIATED STRONG UPPER LEVEL JET STREAM
CONTINUED TO FETCH HIGH AMOUNTS OF MOISTURE FROM THE EASTERN
PACIFIC INTO NORTHERN AND CENTRAL CALIFORNIA.  NATIONAL WEATHER
SERVICE DOPPLER RADARS AND SURFACE OBSERVATIONS INDICATED
WIDESPREAD MODERATE TO HEAVY RAIN FALLING ACROSS PORTIONS OF
NORTHERN AND CENTRAL CALIFORNIA...INCLUDING THE SAN FRANCISCO
METROPOLITAN AREA.  PRECIPITATION WAS IN THE FORM OF MODERATE TO
HEAVY SNOW OVER THE HIGHER ELEVATIONS OF THE SIERRAS NEVADA. LIGHT
TO MODERATE RAIN CONTINUED TO SPREAD EASTWARD INTO PORTIONS OF THE
GREAT BASIN...INTERMOUNTAIN WEST...AND PACIFIC NORTHWEST.

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 1000 PM PST SUN
FEB 19 THROUGH 600 PM PST MON FEB 20...

...CALIFORNIA...
MAMMOTH LAKES 2 W                    16.0                    
TUOLUMNE MEADOWS                     11.0                    
NORTHSTAR                             8.0                    
SQUAW VALLEY                          8.0                    

...NEVADA...
MOUNT ROSE SKI AREA                  16.0                    
INCLINE VILLAGE 1 E                  12.0                    
HEAVENLY VALLEY                       9.0                    

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 1000 PM PST SUN
FEB 19 THROUGH 600 PM PST MON FEB 20...

...CALIFORNIA...
FT HUNTER LIGGETT RAWS                6.82                    
COOSKIE MTN RAWS NEAR PETROLIA        5.68                    
HONEYDEW 2 SSE                        5.40                    
MINING RIDGE                          5.32                    
BIG SUR RAWS                          5.16                    
VENADO 7 NNW GUERNEVILLE              5.00                    
YORKVILLE                             4.28                    
CAMP SIX RAWS NEAR GASQUET            4.00                    
KENTFIELD                             3.98                    
BLUE CANYON                           3.93                    
BOULDER CREEK 1 SSE                   3.63                    
HONEYDEW                              3.60                    
CLOVERDALE 5 NNW                      3.20                    
SPRING VALLEY                         3.16                    
MIDDLE PEAK RAWS                      3.04                    
TAYLOR RIDGE                          3.04                    
TRINITY CENTER 1 ESE                  3.03                    
LAYTONVILLE RAWS                      2.90                    
MIRANDA 4 SW                          2.83                    
LEXINGTON HILLS 2 SSE                 2.57                    
WATSONVILLE MUNI ARPT                 2.37                    
SANTA ROSA/SONOMA CO. ARPT            2.32                    
RICHMOND                              1.98                    
SAN FRANCISCO                         1.82                    
ARCATA/EUREKA AIRPORT                 1.76                    
CRESCENT CITY 8 NNE                   1.68                    
SANTA ROSA/SONOMA COUNTY ARPT         1.50                    
MONTEREY AIRPORT                      1.33                    

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

...CALIFORNIA...
SLATE CREEK RAWS                      79                    
CAMP SIX RAWS NEAR GASQUET            70                    
COOSKIE MTN RAWS NEAR PETROLIA        68                    
KNEELAND 3 ESE                        68                    
PANOCHE ROAD WEST OF I-5              64                    
FAIRHAVEN 1 WSW                       63                    
MENDOCINO PASS RAWS                   61                    
JACK MCNAMARA FIELD ARPT              60                    


AS THE LOW PRESSURE SYSTEM CONTINUES TO APPROACH THE WEST
COAST...WIDESPREAD HEAVY RAINFALL AND MOUNTAIN SNOW WILL CONTINUE
IMPACT NORTHERN/CENTRAL CALIFORNIA...OREGON AND INTO IDAHO TONIGHT
AND INTO TUESDAY.  AN ADDITIONAL 2 TO 4 INCHES OF RAIN CAN BE
EXPECTED ACROSS PORTIONS OF NORTHERN CALIFORNIA THROUGH TUESDAY.
FLASH FLOODING WILL REMAIN A THREAT PARTICULARLY ACROSS PORTIONS
OF NORTHERN AND CENTRAL CALIFORNIA AND THE FOOTHILLS OF THE
SIERRAS. OVER THE HIGHER TERRAIN OF NORTHERN CALIFORNIA AND ALONG
THE SIERRAS...1 TO 3 FEET OF SNOW WILL BE POSSIBLE. IN ADDITION TO
THE HEAVY RAIN AND SNOW THREAT...DAMAGING WINDS GUSTING TO 60 TO
70 MPH ARE POSSIBLE...ESPECIALLY ALONG THE COAST AND OVER HIGHER
TERRAINS.

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE WEATHER PREDICTION
CENTER AT 100 AM PST. PLEASE REFER TO YOUR LOCAL NATIONAL WEATHER
SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS EVENT.

KONG