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