####018008149#### ACUS41 KWBC 260248 SCCNS1 Storm Summary Number 3 for Major West Coast Storm System NWS Weather Prediction Center College Park MD 700 PM PST Sat Feb 25 2023 ...Heavy precipitation and strong winds are spreading east into the Southwest... Winter Storm Warnings are in effect for portions of California, southern Nevada, and northern and central Arizona. Winter Storm Watches are in effect for portions of California and western Nevada. Winter Weather Advisories are in effect for portions of California, Arizona, northern New Mexico, and southern Utah. Flood Watches for southern California will expire late Saturday night. High Wind Warnings are in effect for much of New Mexico, West Texas, and southern Colorado. High Wind Watches are in effect for portions of the Texas and Oklahoma Panhandles, northern Colorado, and southeastern Wyoming. Wind Advisories are in effect for portions of California, southern Nevada, and western Arizona, New Mexico, and the southern Plains. For a detailed graphical depiction of the latest watches, warnings and advisories, please see www.weather.gov At 600 PM PST...A low pressure center was analyzed over central Nevada with a minimum central pressure of 1006 mb (29.71 in of Hg). An occluded boundary extended southeast to a second low over southern Nevada with a minimum central pressure of 1005 mb (29.68 in of Hg). From the second low, a cold front stretched south along the California and Arizona border and a short warm front stretched southeast into northern Arizona. Latest radar and surface observations show moisture streaming ahead of and along the cold front that is producing heavy precipitation in southern California and southern Nevada. Precipitation is falling as rain near sea level and as mixed precipitation and snow in and near mountainous terrain. This system is also accompanied by strong winds that are impacting the Southwest. ...Selected preliminary Storm Total Snowfall in inches from 700 AM PST Thu Feb 23 through 600 PM PST Sat Feb 25... ...CALIFORNIA... PINECREST 2 ENE 59.0 BIG BEAR LAKE 2 E 57.0 SODA SPRINGS 3 S 56.1 DONNER PEAK 8 SSE 53.0 KIRKWOOD MEADOWS 1 S 47.0 LONE PINE 11 SW 43.0 ASPENDELL 39.2 KINGVALE 39.0 TWIN BRIDGES 2 E 39.0 ISABELLA HIGHLAND 5 WNW 36.0 SIMS 2 NW 36.0 MOUNT SHASTA 3 SSE 33.0 BEAR VALLEY 32.0 ...NEVADA... SMITH VALLEY 9.5 WSW 13.7 GARDNERVILLE 5.7 W 12.8 CARSON CITY 4.4 N 11.5 DIAMOND PEAK SKI BASE 11.0 MT. ROSE SKI BASE 10.0 RENO 4 SSW 8.5 INCLINE VILLAGE 1 NNW 6.8 FERNLEY 1 SSW 5.5 MINDEN 5.0 ...Selected preliminary Storm Total Rainfall in inches from 700 AM PST Thu Feb 23 through 600 PM PST Sat Feb 25... ...CALIFORNIA... ALTADENA 0.7 ESE 9.66 TOPANGA 9.36 LA CRESCENTA-MONTROSE 0.3 NE 9.29 LA CANADA 8.98 CHATSWORTH 8.48 PEDRA BLANCA 8.37 ROSE VALLEY 8.18 LOS ANGELES 4.3 NNW 7.60 OJAI 5.9 E 7.46 GLENDALE 2.4 WSW 7.21 SANTA CLARITA 3.1 WSW 7.10 PASADENA 1.8 E 6.34 LYTLE CREEK 6.30 THOUSAND OAKS 2.1 WSW 5.38 ...Selected preliminary Peak Wind gusts in miles per hour earlier in the event... ...CALIFORNIA... AGUA DULCE 8 S 87 MAGIC MTN TRUCK TRL 87 SAN GUILLERMO 87 SILVERWOOD LAKE 81 RAYES PEAK 7 ENE 79 TOPATOPA PEAK 6 WNW 78 REFUGIO STATE BEACH 34 S 74 BIG PINES 1 E 73 FORD OBSERVATORY 73 FALLING SPRINGS 7 NNE 66 WOODLAND HILLS 3 SSW 66 ACTON 8 SE 65 SAN FERNANDO 5 NNE 65 SAN LUIS OBISPO 4 NE 64 ...NEVADA... BLUE EAGLE RANCH 9 S 73 SNOWSTORM MOUNTA 28 NNE 60 ...Selected preliminary Storm Total Snowfall in inches where the event has ended... ...OREGON... ROSE LODGE 15.0 TILLAMOOK 2 E 14.6 SUMMIT 1 NW 13.7 SAINT HELENS 2 W 13.0 GRESHAM 12.0 FAIRVIEW 11.5 SILVERTON 6 SE 11.5 GASTON 11.0 PORTLAND AIRPORT 2 S 11.0 ROCKWOOD 2 NNW 11.0 ...WASHINGTON... WASHOUGAL 2 NE 18.0 LARCH MOUNTAIN 5 SSE 17.0 HOODSPORT 3.7 WNW 13.8 CAMAS 1 NW 11.5 AMBOY 1 W 11.3 YACOLT 1 S 11.0 LACAMAS LAKE 3 WSW 10.2 GOVERNMENT ISLAND 2 E 8.8 EVERGREEN 1 ENE 8.5 VANCOUVER MALL 1 SE 8.5 The upper-level low associated with the system is forecast to gradually move eastward into the Intermountain West Saturday night, which will decrease precipitation chances in California and increase precipitation chances in Nevada, Arizona, and Utah. Additional snow from this system will be possible in California through Sunday afternoon with locally heavy accumulations possible, especially in higher terrain. Widespread snow totals of 4 inches will be possible across Nevada, Arizona, and Utah with locally higher amounts likely in higher terrain. Travel conditions will remain dangerous in mountainous areas. Heavy rain in southern California could lead to flooding of some rivers/streams and flood-prone areas through Sunday afternoon. This will be the last Storm Summary issued by the Weather Prediction Center for this event. Please refer to your local National Weather service office for additional information. Dolan $$