In Canada, from +37,8°C to snow, 40 cm snow in Goose Bay, Labrador, US tornadoes killed 30, a father rescuing daughter from 1,5 m Maryland floods, the 2nd most successful ski season in the US, drought in Florida and many temperature records across the US
Marek Kučera 
Extreme heatwave in Canada and northern USA from the last days is gone and it was replaced by severe cooldown, with snowing just in areas with temperatures up to +37,8°C.
In Winnipeg, on 13. May 2025, +37,0°C was measured, but on Saturday, 17. May 2025, Tmax reached only +6,1°C and in the morning was snowing. Emerson dropped from +37,8°C to +5,5°C Tmax from 11. to 17. May 2025.
Little earlier, at the start of the ending week, 40 cm of snow – a historic May snowfall fell in Goose Bay, Labrador, Canada. A previous record 34 cm was observed in May 1957, with modern measurements since 1942.
Meanwhile, storm and tornado season is continuing in central and eastern USA, with similar pattern during Summer 2025 /https://mkweather.com/summer-2025-forecast-for-north-america-and-the-usa-at-the-first-half-more-floods-at-the-second-half-peak-of-the-summer-strong-wildfire-season-on-the-west-deadly-tornado-and-hurricane-season-on-the-eas//.
According to the updates, 30 people died in the last tornado outbreak.
A heartbreaking photo with father rescuing his daughter in Maryland 1.5 meter floodwater are trending on the Internet these days.
Tornadoes and floods are forecast to continue in the US early next week.
Plains and Northeast, such as West should be prepared to cooldown and respiratory diseases from the cold in the following days.
Mainly South reported in the last days many hot temperature records.
Florida reports drought.
Extreme heatwaves are predicted by ECMWF for all continent between 10.-30. June 2025, so far.
Dangerous tornadoes will be appearing in Central and Eastern USA during all Summer 2025 with higher intensity as usual, and the strongest Tornado season in 15 years (at least) will continue.
More reading:
30 people killed as powerful tornadoes and severe storms ripped across Illinois, Missouri, Indiana, Kentucky, Virginia and Washington, /https://weather.com/storms/tornado/news/2025-05-16-st-louis-clayton-missouri-tornado?cm_ven=hp-slot-1, https://www.accuweather.com/en/severe-weather/28-dead-half-a-million-without-power-as-deadly-storms-tornadoes-sweep-across-central-eastern-us/1775624
Damaging Winds, Large Hail, Strong Tornadoes Possible In The Plains /http://Damaging Winds, Large Hail, Strong Tornadoes Possible In The Plains/.
Severe thunderstorm through the weekend across the Midwest and Northeast https://www.accuweather.com/en/severe-weather/severe-thunderstorm-risk-to-persist-through-the-weekend/1775458
Tornadoes and flooding early in the week. /https://www.accuweather.com/en/severe-weather/storm-stricken-central-us-braces-for-more-volatile-weather-ahead/1775913
Cool, rainy for Northeast /https://www.accuweather.com/en/weather-forecasts/cool-rainy-stretch-looms-for-northeast-as-memorial-day-weekend-approaches/1776005
Cold storm to bring rain, snow to western US through Sunday /https://www.accuweather.com/en/winter-weather/cold-storm-to-bring-rain-snow-and-thunder-to-western-us-through-sunday/1775361
MAY 2025 IN NORTH AMERICA, SO FAR
May 2025, so far (1.-16.5.2025) in North America. Source: https://psl.noaa.gov/data/composites/day/
IN CANADA FROM +37/+38°C TO SNOWING
40 CM OF MAY SNOW IN GOOSE BAY, LABRADOR, CANADA
THE SECOND “STRONGEST” SKI SEASON IN THE USA
HOT WEATHER IN SOUTHERN USA
TORNADOES AND FLOODS IN THE USA
DROUGHT IN FLORIDA
TEMPERATURE RECORDS
Marek Sadowski 
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