Sunday, December 12, 2021

Winter Storm Atticus Event Summary

Weather summary
for New Brunswick
issued by Environment Canada
at 4:40 p.m. AST Sunday 12 December 2021.

Discussion.

A frontal disturbance brought freezing rain to central and northern 
portions of the province Saturday. Milder temperatures were reported 
over southernmost areas, and strong winds over eastern regions. 

The following is a summary of weather event information received by 
Environment and Climate Change Canada as of 3:00 PM Sunday December 
12: 

1. Summary of period of freezing rain (AST): 

Fredericton: 12 PM to 4 PM 
Woodstock: 12 PM to 3 PM 
Doaktown: 2 PM to 9 PM 
Miramichi: 3 PM to 6 PM 
Bathurst: 7 PM to 9 PM 
Charlo: 3 PM to 10 PM 
Edmundston: 12 PM to 6 PM 

2. Summary of rainfall (mm): 

Fundy Park: 29.8 
Harvey: 25.4 

3. Summary of Wind Gust (km/h): 

Moncton: 98 
Miscou Island: 89 
Bas Caraquet: 83 

4. Summary of daily maximum temperature record on December 11, 2021: 

Woodstock Area (Woodstock Newbridge) 
New record of 12.9 
Old record of 11.0 set in 1993 
Records in this area have been kept since 1886 

Note: The temperature record reported here has been derived from a 
selection of historical stations in this 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/ASPC

Weather summary
for Nova Scotia
issued by Environment Canada
at 10:39 a.m. AST Sunday 12 December 2021.

Discussion.

A disturbance brought waves of heavy rain, thunderstorms and strong 
winds to Nova Scotia late Saturday. A cluster of thunderstorms 
travelled from the Gulf of Maine to western Nova Scotia early in the 
evening, reaching Halifax in the middle of the evening and then 
Eastern Shore. It produced hourly rainfall rates of 20 mm per hour. 
The combination of very mild temperatures, rainfall and strong winds 
quickly melted all of the significant snowfall received earlier in 
the week. 

The following is a summary of weather event information received by 
Environment and Climate Change Canada as of 9:00 AM Sunday December 
12: 

1. Summary of total rainfall in millimetres: 

Halifax Kootenay 87.2 
Halifax Windsor Park 74.6 
Framboise 65.2 
Dartmouth 64.3 
Halifax North End 64.0 
Osborne Head 61.4 
Shearwater Jetty 61.2 
Malay Falls 57.5 
Liverpool 56.1 
Sampsonville 55.1 
West Chezzetcook 54.4 
Spanish Ship Bay 54.2 
Sheet Harbour 54.1 
Bridgewater 53.8 
West Porters Lake 51.3 
Shearwater Rcs 50.0 
Lunenburg 49.5 
Bedford Range 48.8 
Kejimkujik 1 48.6 
Guysborough 47.8 
Duncans Cover 47.0 
Eskasoni First Nation 46.4 
Bedford 44.2 
Western Head 43.4 
Upper LaHave 42.9 
Sluice Point 42.8 
Evanston 42.8 
Hammonds Plains 42.4 
Glen Haven 42.2 
Hubbards 41.7 
Louisbourg 41.7 
Yarmouth 41.0 
Shelburne Sandy Point 38 
Barss Corner 37.3 
West Pubnico 35.6 
Ingonish Beach 34.6 
Eskasoni First Nation 33.9 
Parrsboro 33.8 
Port Hawkesbury 30.2 
Aldersville 30 
Aylesford 29.6 
Meteghan River 29.5 
Moschelle 29.4 
Port Maitland 29.2 
St. Anns 29.2 
Centreleas 28.2 
Collegeville Auto 27.8 
Antigonish 26.4 
Trafalgar 26.2 

2. Summary of maximum wind gusts in km/h: 

Skyline 113 
Grand Etang 100 
Osborne Head 96 
Halifax Kootenay 89 
Beaver Island 89 
Yarmouth 83 

3. The following area set a daily maximum temperature record on 
December 11, 2021: 

Brier Island Area (Brier Island) 
New record of 13.5 
Old record of 13.3 set in 1969 
Records in this area have been kept since 1937 

Note: The temperature record reported here has been derived from a 
selection of historical stations in this 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/ASPC

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