Saturday, April 08, 2023

Winter Storm Vanessa Event Summary


Storm Summary Number 05 for Northern High Plains to Upper Midwest
Blizzard
NWS Weather Prediction Center College Park MD
1000 AM CDT Thu Apr 06 2023

...Conditions improving this morning, only light snow showers
remain in the Upper Midwest...

High Wind Warnings are in effect for part of the Upper Peninsula
of Michigan.

Wind Advisories are in effect for northern parts of Michigan.

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

At 900 AM CDT...The low pressure center of the storm was analyzed
near the southern Hudson Bay in Canada with a minimum central
pressure of 996 mb (29.41 in of Hg). An occluded boundary extended
south from the low towards a triple point just north of Lake
Ontario. From the triple point, a stationary boundary draped south
and east across the Mid-Atlantic and a cold front extended
southwest along the Appalachians towards the northern Gulf Coast.
Wintry precipitation has come to an end for most locations, but
scattered light snow showers remain in the Upper Midwest. Strong
winds continue to impact parts of the Upper Midwest where
sustained winds are 25-40 mph with gusts up to 55 mph.

...Selected preliminary Storm Total Snowfall in inches from 700 AM
CDT Mon Apr 03 through 900 AM CDT Thu Apr 06...

...MICHIGAN...
THREE LAKES                           7.0                    
BARAGA 2 S                            3.0                    
MUNISING 11.1 SSW                     2.8                    

...MINNESOTA...
MALUNG 4 NE                          13.0                    
WARREN                               12.5                    
WARROAD 4 WSW                        12.5                    
EUCLID 6.2 NNE                       12.0                    
ROSEAU                               12.0                    
THIEF RIVER FALLS 7 W                12.0                    
INTERNATIONAL FALLS 5.1 SSW          11.8                    
WARROAD 1.8 WNW                      11.0                    
EAST GRAND FORKS 4.9 N               10.6                    
HOLT 2 N                              9.0                    
OKLEE                                 9.0                    
CORMORANT 5 NNW                       8.8                    
PELICAN RAPIDS 3 E                    8.0                    
BREKENRIDGE MN                        6.5                    
DETROIT LAKES 6 E                     6.2                    

...WISCONSIN...
SUPERIOR 3.7 WNW                      3.4                    
LAND O' LAKES 11.7 W                  2.6                    
MERCER 7 NNE                          1.3                    
SAND BAY 3 E                          1.3                    

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

...ARIZONA...
GREER 8 WNW                            67                    
HOUSE ROCK 4 N                         63                    
FLAGSTAFF AIRPORT 1 SSE                59                    

...CALIFORNIA...
TRONA 30 SSW                           86                    
WELDON 11 SE                           85                    
KENNEDY MEADOWS 8 S                    78                    

...COLORADO...
WOLF CREEK PASS 2 S                    83                    
SAWPIT 4 S                             77                    
CAMEO 7 NNW                            59                    

...NEVADA...
AMARGOSA VALLEY 15 NNW                 66                    
MERCURY 3 SW                           58                    
SPRING MOUNTAIN 3 ESE                  58                    

...NEW MEXICO...
RED RIVER 8 S                          77                    
EDGEWOOD 2 NE                          63                    
BLOOMFIELD 2 SW                        59                    

...TEXAS...
LUBBOCK 6 NNE                          61                    
ROARING SPRINGS 3 N                    60                    
AMARILLO 6 ENE                         58                    

...UTAH...
PARIA                                  60                    
MONTICELLO 2 E                         58                    
ELGIN 57 NE                            57                    

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

...COLORADO...
ALLENSPARK 2 E                       11.2                    
ESTES PARK 2 SW                      11.0                    
POUDRE PARK                          11.0                    
CRESCENT VILLAGE 1 S                 10.0                    
ASPEN SPRINGS 1 W                     6.5                    
FORT COLLINS 2 WSW                    5.0                    
CASTLE ROCK 1 NE                      3.0                    

...IDAHO...
INKOM 7 NW                           25.5                    
CHUBBUCK 4 ESE                       21.8                    
POCATELLO 1 S                        18.0                    
AMERICAN FALLS                        5.0                    

...MAINE...
CARIBOU 1 N                           2.2                    
CASTLE HILL 2 SSE                     2.0                    
WESTFIELD 2 NNW                       1.5                    

...MONTANA...
RED LODGE 4 W                        25.0                    
FISHTAIL 18 SW                       18.0                    
LUTHER 3 SSW                         18.0                    
NYE 14 W                             14.0                    

...NEBRASKA...
HARRISON                             20.0                    
CHADRON                              18.0                    
AGATE FOSSIL BEDS                    12.0                    
CRAWFORD 10.8 ESE                     7.3                    
HARRISBURG 9.1 SW                     4.1                    
HEMINGFORD 10.1 NNE                   4.0                    

...NORTH DAKOTA...
JAMESTOWN 0.8 WSW                    18.7                    
HOPE 5.4 WNW                         17.2                    
THOMPSON 1 W                         15.0                    
ASHLEY                               14.5                    
BLABON 5 SSW                         13.5                    
MONTPELIER 3 ESE                     13.3                    
LARIMORE 0.4 SE                      13.1                    
ARVILLA                              13.0                    
GOLDEN LAKE                          12.0                    
GRAND FORKS 1 NNW                    11.3                    
FARGO 2 NNE                          11.0                    
MICHIGAN                             11.0                    
WILLOW CITY 3 N                      11.0                    

...SOUTH DAKOTA...
HOT SPRINGS                          30.0                    
EDGEMONT 21.1 SSW                    28.0                    
CUSTER 4.7 ENE                       24.0                    
HERMOSA                              24.0                    
HAYES 7 E                            18.0                    
RAPID CITY 6.9 W                     16.5                    
HAYWARD 1 E                          16.0                    
SENECA 8 SSW                         16.0                    
ROSCOE                               15.6                    
FOLSOM 7 WSW                         15.0                    
PIERRE                               14.0                    
HISEGA 3 NE                          13.0                    
DWTN RAPID CITY 3 S                  11.5                    
ABERDEEN RGNL ARPT                   11.0                    

...UTAH...
ALTA                                 67.0                    
PARK CITY                            49.0                    
MANTUA                               39.7                    
SUMMIT PARK                          22.5                    
BRIGHTON                             21.0                    
SANDY                                15.4                    
VERNAL 2 SSW                          7.3                    
MANTI                                 6.0                    

...WYOMING...
CASPER 7 S                           60.0                    
ATLANTIC CITY                        48.8                    
GLENROCK 22 S                        33.0                    
N LUSK                               30.0                    
CAPBELL CREEK CAM 2 SW               27.0                    
LANCE CREEK                          26.0                    
DOUGLAS                              23.5                    
DAYTON 8 WSW                         20.0                    

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

...MAINE...
THE FORKS 10 NNW                     1.50                    
DOVER-FOXCROFT 1 WNW                 0.70                    

...Selected preliminary Storm Total Freezing Rain ice amounts in
inches where the event has ended...

...MAINE...
DALLAS 1 WNW                         0.25                    
EMBDEN 1 N                           0.25                    
BANGOR 1 N                           0.20                    
MILLINOCKET 1 SE                     0.20                    
MILLINOCKET 1 WNW                    0.13                    
FRYEBURG 3 SE                        0.12                    
GRENVILLE 4 ENE                      0.10                    
WHITING 3 NNE                        0.10                    

...MICHIGAN...
MANISTIQUE 2.7 NW                    0.30                    
GWINN                                0.10                    

...MINNESOTA...
FINLAYSON 6 SW                       0.30                    
PINE RIVER                           0.30                    
GRAND RAPIDS 12 N                    0.25                    
HERMANTOWN 3 SE                      0.25                    
PARK RAPIDS                          0.25                    

...NEW HAMPSHIRE...
MILAN 1 N                            0.26                    
PITTSBURG 1 SE                       0.25                    

...NEW YORK...
MASSENA AIRPORT                      0.44                    

...VERMONT...
GREENSBORO 4 NNE                     0.16                    
PEACHAM 1 WNW                        0.04                    

...WISCONSIN...
WASHBURN 2 N                         0.40                    
ASHLAND                              0.30                    
SOLON SPRINGS 5 W                    0.30                    

The low pressure system will continue to push into Canada, and any
lingering snow showers will come to an end today. Strong winds
will gradually subside through Thursday evening as the system
moves further away.

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


Weather summary
for Ontario and the National Capital Region
issued by Environment Canada
at 11:29 a.m. EDT Thursday 6 April 2023.

Discussion.

A Colorado low affected most of Ontario Wednesday, bringing a winter 
storm to northern Ontario, an ice storm to northeastern and eastern 
Ontario, and significant rainfall to most of southern Ontario. There 
were also numerous thunderstorms across the province associated with 
snow, freezing rain and rain. 

There have been reports of tree damage from significant ice 
accretion. Hydro One reported over 110,000 customers without power, 
and Hydro Ottawa reported over 60,000 customers without power. 

The following is a summary of weather event information received by 
Environment Canada. 

1. Summary of rainfall in millimetres: 

Environment and Climate Change Canada's observation network: 

Beatrice 66.8 
Kemptville 63.5 
Wiarton Airport 61.6 
Algonquin Park 55.1 
Muskoka Airport 53.4 
Parry Sound 52.7 
Brockville 42.6 
Moose Creek Wells 42.5 
Tobermory 42.0 
Bancroft 41.4 
Ottawa Airport 38.5 
Collingwood 37.9 

MNRF Climate Stations: 

Galloway Lake 49.0 
Bracebridge 46.2 

CoCoRaHS: 

Morrisburg 59.9 
Tamworth 43.7 
Clarksburg 39.1 

2. Summary of snowfall in centimetres: 

Kenora 27 
*Keewatin 22 
Red Lake 17 

*denotes volunteer observation 

3. Hours of freezing rain and ice pellets: 

Ottawa 9 
Sudbury 8 
Petawawa 7

Please note that this summary may contain preliminary or unofficial 
information and does not constitute a complete or final report.

End/OSPC


Weather summary
for Quebec
issued by Environment Canada
at 2:40 p.m. EDT Thursday 6 April 2023.

Discussion.

Yesterday, an important Colorado low has been affecting all of 
Southern Quebec. Significant freezing rain amounts have fallen. 

Looking out their windows on the morning of April 6, 2023, residents 
of southern Quebec and eastern Ontario were reminded of the Great 
Ice Storm of 1998. The trees twisted under the weight of the ice, 
the numerous branches covered with ice littering the ground and the 
cool air in the homes without electricity evoked bad memories. The 
landscapes are similar, but the situation is different. 

Twenty-five years ago, between January 4 and 10, 1998, a succession 
of 3 freezing rain systems left between 50 and 100 mm of ice 
accretion on areas of eastern Ontario and southern Quebec. It took 6 
days for the temperature to rise above 0 Celsius. Northeasterly 
winds also developed affecting icy structures. 

The freezing rain event on April 5, 2023 left between 10 and 35 
millimeters of freezing rain over much the same areas as in 1998. 
This time, there will only be one day of freezing rain. Mid-spring, 
mid-winter, the freezing rain accumulated very quickly on surfaces, 
in an axis stretching from the Outaouais region to the Saguenay 
region, causing numerous accidents, broken branches and trees and 
power outages. At the peak of the event, Hydro-Quebec reported more 
than one million customers without power. Today, the rising 
temperature allowed the ice that was still weighing on vegetation 
and structures to melt. This rapid melting caused falling ice 
situation. 

The following is a summary of weather event information received by 
Environment Canada following this event. 

Summary by area of freezing rainfall amounts (mm): 

Montreal: 30 to 35 
Montérégie: 15 to 25 
Lachute: 10 
Outaouais: 25 to 30 
Richelieu: 15 
Mauricie: 5 to 10 
Centre-du-Québec: 10 to 15 
Quebec City: 2 to 4

Please note that this summary may contain preliminary or unofficial 
information and does not constitute a complete or final report.

End/QSPC


Weather summary
for Saskatchewan
issued by Environment Canada
at 9:14 a.m. CST Thursday 6 April 2023.

Discussion.

It was another cold morning in Saskatchewan with 8 daily minimum 
temperature records broken. This is in addition to the 7 records 
broken yesterday. 

The following areas will have set a daily minimum temperature record 
on April 6, 2023: 

Elbow Area 
Preliminary new record of -23.1 
Old record of -20.3 set in 2018 
Records in this area have been kept since 1955 

Moose Jaw Area 
Preliminary new record of -21.5 
Old record of -20.0 set in 2018 
Records in this area have been kept since 1894 

Weyburn Area 
Preliminary new record of -22.6 
Old record of -21.6 set in 2018 
Records in this area have been kept since 1953 

Regina Area 
Preliminary new record of -25.9 
Old record of -23.4 set in 2018 
Records in this area have been kept since 1883 

Last Mountain Lake Area 
Preliminary new record of -24.3 
Old record of -21.5 set in 2018 
Records in this area have been kept since 1975 

Watrous Area 
Preliminary new record of -23.5 
Old record of -21.6 set in 2018 
Records in this area have been kept since 1953 

Assiniboia Area 
Preliminary new record of -21.3 
Old record of -21.2 set in 2018 
Records in this area have been kept since 1965 

Leader Area 
Preliminary new record of -20.4 
Old record of -19.7 set in 2018 
Records in this area have been kept since 1924 

The following areas set a daily minimum temperature record on April 
5, 2023: 

Elbow Area 
New record of -23.0 
Old record of -22.0 set in 1979 
Records in this area have been kept since 1955 

Kindersley Area 
New record of -24.7 
Old record of -21.5 set in 2018 
Records in this area have been kept since 1942 

Last Mountain Lake Area 
New record of -25.3 
Old record of -20.8 set in 2018 
Records in this area have been kept since 1975 

Leader Area 
New record of -25.1 
Old record of -19.4 set in 1975 
Records in this area have been kept since 1924 

Lucky Lake Area 
New record of -24.9 
Old record of -22.5 set in 1979 
Records in this area have been kept since 1972 

Outlook Area 
New record of -22.2 
Old record of -22.0 set in 1979 
Records in this area have been kept since 1915 

Rosetown Area 
New record of -26.2 
Old record of -24.5 set in 1982 
Records in this area have been kept since 1913 

Note: the temperature records reported here have been derived from a 
selection of historical stations in each geographic area that were 
active during the period of record.

Please note that this summary may contain preliminary or unofficial 
information and does not constitute a complete or final report.

End/PASPC

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