Thursday, July 04, 2019

June 2019 Climate Summary for Northern and Eastern Maine

...June monthly climate narrative for northern and eastern Maine...

 June 2019 featured slightly below average temperatures and mostly above normal rainfall across northern and eastern Maine. Temperatures averaged from near normal to 1.5 degrees (F) below June Normals across the region. The last significant frost/freeze across northern and central portions of the region occurred on the morning of the first. Otherwise, the month was marked by relatively consistent cool daytime high temperatures with no very warm, Including no 90+ degree high temperature days. At Caribou, the first 80+ day recorded on the 19th was the seventh latest first occurrence (with May 20th the average and July 1st 1985 the latest) since official records began at this site in 1939. In fact, most locations only received 2 to 3 total lower 80+ high temperature days, and a few over the far north, like Frenchville, did not have any days. This in contrast to a typical June where about 5 to 9 days of 80+ and perhaps a day of 90+ degree high temperature days are recorded.

North of the immediate Downeast coast, most locations across the region received between 110 and 150 percent of average June rainfall, with the exception of the far north which only received between 70 and 100 percent. The heaviest rainfall occurred over central and especially Downeast areas with several coastal low pressure systems such as experienced on the 11th, 13th, 20th, and 30th. At Bangor, June 2019 was the 11th Wettest since records began there in 1925, but well short of the Monthly record of 8.10 inches recorded in 2009.

Total evaporation for the month measured at Caribou was 4.24 inches which exceeded monthly rainfall totals of around 3.00 inches for far northern locations like Frenchville and Caribou, resulting in significant drying of top soil conditions compared to the prior month of May where top soils were still moist from recently melted
snow pack. Monthly rain totals of 4.50+ inches over central and Downeast areas reached or exceeded this evaporation, so it was likely top soil conditions over these areas was significantly more moist.

The official climate prediction center outlook for July 2019 is not calling for any increased probabilities of above or below normal temperatures or precipitation across the region. Average high temperatures range from 76 to 82 degrees and average lows 54 to 60. Average monthly rainfall is between 3.50 to 4.00 inches.

Heat Alerts issued for the remainder of Nova Scotia, save Cape Breton Island

8:37 PM ADT Thursday 04 July 2019
Heat Warning in effect for:

Halifax Metro and Halifax County West
Humidex values reaching 36 are expected for the next 2 days.

A very warm air mass will remain over Nova Scotia until late Saturday, when an approaching cold front will cause temperature and humidity levels to decrease. Maximum daytime temperatures near 32 degrees and humidex values near 36 are expected on Friday. Minimum temperatures overnight tonight and Friday night will be near 17 degrees, providing little relief from the heat. Temperatures will remain cooler for coastal communities due to onshore breezes.

Check on older family, friends and neighbours. Make sure they are cool and drinking water

Never leave people or pets inside a parked vehicle.

Outdoor workers should take regularly scheduled breaks in a cool place.

Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.

Heat Alert issued for SW Nova Scotia

4:04 PM ADT Thursday 04 July 2019
Heat Warning in effect for:

Lunenburg County
Humidex values reaching 36 are expected for the next 2 days.

A very warm air mass will remain over Nova Scotia until late Saturday, when an approaching cold front will cause temperature and humidity levels to decrease. Maximum daytime temperatures near 32 degrees and humidex values near 36 are expected on Friday. Minimum temperatures overnight tonight and Friday night will be near 17 degrees, providing little relief from the heat. Temperatures will remain cooler for coastal communities due to onshore breezes.

Check on older family, friends and neighbours. Make sure they are cool and drinking water

Never leave people or pets inside a parked vehicle.

Outdoor workers should take regularly scheduled breaks in a cool place.

Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.

Information is provided on the Nova Scotia Department of Health and Wellness website at https://novascotia.ca/heat-related-illness/.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to NSstorm@canada.ca or tweet reports using #NSStorm.