The Weather Prediction Center

College Park, MD


Storm Summary Message



Storm Summary Number 7 for West Coast to Upper Midwest Storm System
NWS Weather Prediction Center College Park MD
900 AM CST Tue Jan 03 2023

...Heavy snow and freezing rain continues across the Central
Plains and the Upper Midwest...

Winter Storm Warnings are in effect for portions of the central
Plains and Upper Midwest.

Winter Weather Advisories are in effect for portions of the
central Rockies, central Plains, and Upper Midwest.

Ice Storm Warnings are in effect for portions of central and
eastern Nebraska through northwestern Iowa and southern Minnesota.

High Wind Warnings are in effect for portions of southeastern
Wyoming, southeastern New Mexico, and western Texas.

Winter Storm Watches are in effect for portions of the Upper
Midwest.

Wind Advisories are in effect for portions of central and
southeastern New Mexico and west Texas.

For a detailed graphical depiction of the latest watches, warnings
and advisories, please see www.weather.gov

At 800 AM CST...The low pressure center was analyzed over the
southwestern Iowa with a minimum pressure of 998 mb (29.47 in Hg).
An occluded front extends to the southeast to a triple point over
northern Missouri. From the triple point, a cold front extends to
the south and southwest across Arkansas and into southern Texas,
while a stationary front extends to the east-northeast across the
Great Lakes region into the Mid-Atlantic and Northeast. Latest
radar and surface observations show light to moderate
precipitation gradually dissipating over the central and southern
Rockies. A shield of moderate precipitation, primarily snow and
freezing rain, is located to the northwest of the low pressure and
affecting regions of northern Nebraska, southern South Dakota,
northwestern Iowa, and southern Minnesota. Precipitation is
beginning to spread from the Great Lakes region into the
Mid-Atlantic and Northeast, primarily in the form of rain.

...Selected preliminary Storm Total Snowfall in inches from 500 AM
CST Fri Dec 30 through 800 AM CST Tue Jan 03...

...ARIZONA...
FOREST LAKES 1 E                     20.0                    
PINETOP-LAKESIDE                     16.0                    
WILLIAMS 3.3 SSE                     13.8                    
FLAGSTAFF AIRPORT 12.1               12.1                    
BELLEMONT NWS FLAGSTAFF              10.8                    
GRAND CANYON SOUTH RIM               10.2                    
SUMMERHAVEN                          10.0                    
SHOW LOW 4.2 S                        8.5                    

...COLORADO...
ROCKWOOD 6.9 NNW                     28.3                    
MOUNT ZIRKEL 4 SE                    23.0                    
CRESTED BUTTE 6.2 N                  22.0                    
SILVERTON 0.3 WSW                    19.1                    
CAMERON PASS 9 SE                    19.0                    
GLENDEVEY 8 NW                       17.0                    
STEAMBOAT SPRINGS 1.9 E              16.1                    
ARAPAHOE PEAK 6 W                    15.0                    
COAL BANK PASS                       15.0                    
CLARK 7.5 N                          13.5                    
SILVERTON                            13.5                    
MOLAS PASS                           13.0                    
RED MOUNTAIN PASS                    12.0                    
MONARCH PASS 1 NNW                   10.0                    
ILIFF                                 8.0                    

...NEBRASKA...
ATKINSON 3 SW                        16.5                    
VALENTINE                            13.0                    
ONEILL                               11.0                    
STAPLETON 5 W                         8.3                    
OGALLALA                              8.0                    
S CODY                                7.0                    
WHITMAN 25 N                          6.0                    

...NEW MEXICO...
PAJARITO MOUNTAIN 1 NNE              10.0                    
MOGOLLON 6 ESE                        9.0                    
TAOS SKI VALLEY 1 SSW                 8.0                    

...SOUTH DAKOTA...
DIMOCK 10.2 W                        22.2                    
LAKE ANDES 2 N                       22.0                    
RENNER 4.1 NW                        15.3                    
BURKE 10.5 SSE                       15.0                    
ETHAN                                14.5                    
SHERMAN                              10.0                    
ALEXANDRIA 1 SW                       8.0                    
SALEM                                 8.0                    
HUMBOLDT 5 N                          7.5                    

...UTAH...
SUNDANCE                             52.0                    
BRIGHTON                             44.0                    
HEBER CITY 10.1 ESE                  30.3                    
PARK CITY                            28.0                    
SNOWBASIN                            28.0                    
POWDER MOUNTAIN                      24.0                    
SANDY 2.0 NE                         16.4                    

...WYOMING...
LANDER 13 SW                         27.0                    
SOUTH PASS CITY 10 NNW               26.0                    
RAWLINS                              24.0                    
COKEVILLE 21 NE                      22.0                    
FORT WASHAKIE 14 SW                  19.0                    
SMOOT 15 ESE                         17.0                    
CENTENNIAL                           16.0                    
CASPER 1.2 SW                        15.5                    
CARPENTER 4.1 NW                     15.0                    
TURNERVILLE 17 ESE                   15.0                    
CASPER 7 S                           13.0                    
SOUTH ENTRANCE 5 N                   13.0                    
WILSON 2.6 SSW                       13.0                    
ALTA 6 ENE                           12.0                    
MUDDY GAP 1 SSW                      12.0                    
ELK MOUNTAIN                         10.0                    

...Selected preliminary Storm Total Sleet in inches from 500 AM
CST Fri Dec 30 through 800 AM CST Tue Jan 03...

...NEBRASKA...
NORFOLK                              0.10                    

...Selected preliminary Storm Total Freezing Rain ice amounts in
inches from 500 AM CST Fri Dec 30 through 800 AM CST Tue Jan 03...

...IOWA...
BADGER 3 SW                          0.13                    
TERRIL 2 W                           0.13                    

...Selected preliminary Peak Wind gusts in miles per hour earlier
in the event...

...CALIFORNIA...
PALISADES TAHOE SUMMIT                160                    
MAMMOTH MOUNTAIN                      116                    
HEAVENLY SKI SUMMIT 1 NNW              99                    
ALPINE MEADOWS 2.9 W                   82                    
CONWAY SUMMIT                          82                    
CROWLEY LAKE 6 W                       80                    
JAWBONE                                70                    
BIRD SPRINGS PASS                      66                    
SACRAMENTO EXEC AIRPORT                64                    
HORSE THIEF SPRINGS                    61                    
MAMMOTH YOSETIME AIRPORT               47                    

...NEVADA...
HAWTHORNE 6 NW                         93                    
YERINGTON 5 ENE                        64                    
RENO 2 NW                              55                    

...UTAH...
SCIPIO SUMMIT                          54                    
PAROWAN                                51                    
MONUMENT PEAK                          49                    

...Selected preliminary Storm Total Snowfall in inches where the
event has ended...

...CALIFORNIA...
MAMMOTH MOUNTAIN SKI BA              54.0                    
PALISADES TAHOE SKI BAS              47.0                    
SOUTH LAKE 1 NNE                     39.0                    
TAHOMA .5 S                          33.7                    
LONE PINE 11 SW                      29.0                    
TRUCKEE 1.6 N                        28.0                    
ROUND VALLEY 9 WNW                   27.0                    
SOUTH LAKE TAHOE 4.9 SW              24.5                    

...IDAHO...
MCCALL 9.3 SSE                       27.5                    
NEW MEADOWS 2.1 NNW                  10.8                    
GENEVA                                9.0                    
BERN                                  8.0                    
ST. ANTHONY                           7.0                    
HOLBROOK 4 NNE                        6.8                    

...MONTANA...
CARROT BASIN                          5.0                    
CLOVER MEADOW                         4.0                    
LONE MOUNTAIN                         4.0                    

...NEVADA...
DIAMOND PEAK SKI BASE                40.0                    
MT. ROSE SKI BASE                    40.0                    
GARDNERVILLE 2 SE                    30.0                    
INCLINE VILLAGE 1 NNW                24.0                    
RENO 9.0 W                           11.0                    

...Selected preliminary Storm Total Rainfall in inches where the
event has ended...

...CALIFORNIA...
CAMINO 1.2 N                        11.68                    
PLACERVILLE 0.9 NE                  11.30                    
SANTA CRUZ 8.9 NW                   10.98                    
VOLCANO 3.2 N                       10.41                    
HOMEWOOD                             8.67                    
WHITETHORN 2.4 WSW                   8.59                    
MIDPINES 4 ESE                       8.44                    
FRESH POND                           8.40                    
JERSEYDALE                           8.03                    
GOAT MOUNTAIN                        7.56                    
BLUE CANYON NYACK AIRPORT            7.37                    
MARIPOSA 3.7 NNW                     7.23                    
SNF06 PORTABLE                       6.84                    
CRANE FLAT                           6.51                    
HELL HOLE                            6.49                    
BALD MTN LOC                         6.33                    
SHAVER LAKE RAWS                     6.23                    
LAYTONVILLE 9.8 NNW                  6.18                    
NORTH FORK                           6.14                    
GIANT FOREST                         5.97                    
AVERY                                5.82                    
CHILKOOT MEADOW                      5.72                    
MOUNT ZION                           5.45                    
SOUTH FORK EEL RIVER AT LEGGETT      5.44                    
STRAWBERRY VALLEY                    5.42                    
WHITE CLOUD                          5.37                    
MOUNT ELIZABETH                      5.17                    
STEELY FORK                          4.87                    
BEN LOMOND                           4.55                    
RANCHO MURIETA 3.5 N                 4.29                    


Precipitation is forecast to continue dissipating over the higher
elevations of the Rockies today and into tonight. Additional
snowfall totals of up to 6 inches, with locally higher amounts
possible, are expected in various portions of the Intermountain
West. The system is forecast to intensify while tracking northeast
across the Central Plains to the Upper Midwest through midweek. A
large swath of moderate to very heavy snow, significant freezing
rain, and sleet is expected across the Plains today and across the
Upper Midwest through Wednesday. Intense snowfall rates of 1 to 3
inches per hour are likely from parts of Nebraska and South Dakota
into Minnesota with 8 to 12 inches of additional snow forecast for
this region. Gusty winds accompanying the system will result in
blowing snow, causing snow covered roads, reduced visibility, and
dangerous travel. Localized significant ice accretions exceeding
0.25 inches are likely from portions of eastern Nebraska through
southern Minnesota and Wisconsin, which could damage trees and
power lines. The storm system will linger over the Upper Midwest
while weakening late in the work week, then push towards the
Northeast this weekend.

The next Storm Summary will be issued by the Weather Prediction
Center at 900 PM CST. Please refer to your local National Weather
Service office for additional information on this event.

Genz




Last Updated: 947 AM EST TUE JAN 03 2023