Storm Summary Number 1 for Northern Plains to Upper Midwest Winter
Storm
NWS Weather Prediction Center College Park MD
1000 PM CDT Fri Mar 31 2023

...Heavy snow and mixed precipitation continues in the Upper
Midwest, as severe weather and strong winds impact the Mississippi
and Ohio Valleys... 

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

High Wind Warnings are in effect for northeastern Missouri,
western Illinois, and much of the central and southern
Appalachians.

Wind Advisories are in effect for the Ohio Valley, Midwest, Upper
Mississippi Valley, Mid-South, Mid-Atlantic, and interior
Northeast.

Winter Weather Advisories are in effect for portions of the
northern Plains and Midwest.

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

At 900 PM CDT...A strong low-pressure system with a minimum
central pressure of 989 mb or 29.21 inHg was located in
northeastern Iowa, with an occluded boundary stretching southeast
to a triple point low in southern Wisconsin. A cold front extended
southwestward from the triple point through Illinois, Missouri,
and the ArkLaTex region, while a warm front extended eastward
through the Great Lakes region and Northeast. Latest RADAR and
surface observations depicted ongoing moderate to heavy snowfall
on the northern flank of the precipitation shield associated with
the expansive storm system along an axis stretching from central
North Dakota eastward through Minnesota and northern Wisconsin.
Strong northerly winds have also persisted on the backside of the
low, leading to blowing snow and blizzard conditions at times.
Light to moderate sleet and freezing rain was also ongoing in
northern Wisconsin. In the warm sector of the system, a severe
weather outbreak continued across the Upper Mississippi Valley and
Ohio Valley, with expansive Tornado Watches covering much of the
region through Friday night into early Saturday morning.

...Selected preliminary Storm Total Snowfall in inches from 700 AM
CDT Thu Mar 30 through 900 PM CDT Fri Mar 31...

...MICHIGAN...
QUINNESEC                             7.0                    
IRON MOUNTAIN 3 NNE                   5.7                    
PEAVY FALLS DAM                       5.0                    
CASPIAN 1 S                           4.5                    

...MINNESOTA...
LESTER PARK 3 SW                      2.8                    
HOLYOKE 3 ENE                         2.4                    
NWS DULUTH                            2.4                    
TWO HARBORS 4 WNW                     2.1                    

...WISCONSIN...
ALVIN                                 8.0                    
AURORA 6 W                            8.0                    
NIAGRA                                6.0                    
ARMSTRONG CREEK 2 N                   5.5                    
FLORENCE                              4.2                    

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

...NEBRASKA...
CHADRON 4 ESE                         9.0                    
WHITNEY 1 ENE                         6.0                    
CRAWFORD 11 N                         4.0                    

...SOUTH DAKOTA...
ROCKERVILLE 1 SW                     15.0                    
KEYSTONE                             13.0                    
BATTLE LAKE 2 E                      12.0                    
HERMOSA 5 WNW                        10.0                    
JOHNSON SIDING                       10.0                    
DOWNTOWN RAPID CITY 4 S               9.0                    

...WYOMING...
STORY 2 WSW                           9.0                    
SHERIDAN 8 SSW                        7.0                    
BURGESS JUNCTION 17 SE                4.0                    
BEULAH 6 SW                           3.0                    


Heavy snow and blizzard conditions will continue late Friday night
into early Saturday as the storm system tracks eastward across the
Ohio Valley. Snow will end from west to east overnight, with
portions of the Dakotas and Minnesota clearing out Saturday
morning, while snow continues into the mid-morning to afternoon
hours on Saturday in Wisconsin and the Upper Peninsula of
Michigan. Additional snowfall accumulations of 6-12" will be
possible along a stripe extending from central Minnesota eastward
through the Upper Midwest, with localized areas of 12-18" in
northeastern Wisconsin and the Upper Peninsula of Michigan. In
addition to heavy snowfall, strong winds will lead to blizzard
conditions at times resulting in widespread hazardous travel
conditions, including snow-covered roads and near zero visibility
and whiteout conditions. Further south, in the warm sector of the
system, the severe weather outbreak will continue Friday night
into early Saturday morning across portions of the Ohio and Upper
Mississippi Valleys, with the potential for strong tornados,
damaging winds, and hail before atmospheric conditions become less
favorable for said hazards early on Saturday. Furthermore,
expansive strong synoptic winds will impact much of the Eastern
Region outside of the Southeast and New England, with widespread
Wind Advisories and High Wind Warnings valid through Saturday
evening.

The next Storm Summary will be issued by the Weather Prediction
Center at 1000 AM CDT. Please refer to your local National Weather
Service office for additional information on this event.

Russell