Saturday, July 22, 2023

Surprise Nova Scotia Severe Thunderstorms Induced Flooding, Event Summary






Weather summary
for Nova Scotia
issued by Environment Canada
at 3:59 p.m. ADT Saturday 22 July 2023.

Discussion.

A slow moving trough of low pressure and a tropical airmass that 
moved into the Maritimes on Friday, produced frequent lightning, 
very heavy downpours of rain and very high rainfall totals. These 
conditions began Friday morning over western areas of the South 
Shore. On Friday afternoon, the rain and thunderstorms spread 
eastward and northward to central and northern areas of the 
province. Rain and thunderstorms spread to eastern areas of Nova 
Scotia today. 

The following is a preliminary summary of rainfall totals observed 
in millimetres as of 3 PM ADT, July 22: 

Bridgewater: 262 
Keizer Meadows (Windsor Road): 257 
Lower Sackville: 255 
Gold River: 250 
Martins Point: 235 
Hubley: 230 
Bedford: 230 
Hammonds Plains: 234 
Port Mouton: 223 
Hardwood Lands (near Milford): 220 
Newcombville: 212 
Upper Falmouth: 208 
Hebbs Cross: 206 
Windsor: 207 
Liverpool: 205 
Lunenburg: 190 
Milton: 184 
Pockwock: 174 
Upper Strewiacke: 154 
Shubenacadie: 142 
Western Head: 124 

The rain is ongoing over eastern areas of the province and a update 
to this summary will likely be issued after the rain ends.

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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