Weekly Weather Watch: Tuesday, September 3rd, 2024
In today’s weather briefing, looking out at the week ahead, we have heat building across the West, some heavy rainfall from the southern Mississippi to the Southeast, and a possible first frost/freeze for the Upper Midwest.
HEADLINERS:
Hazards for this week:
Heat and record-setting temperatures across the West
First frost/freeze possible for the Upper Midwest and record cold for the East.
Heavy rainfall for the Southeast.
For Canada, air quality from wildfire smoke remains the main impact. Heavy rainfall will hit coastal B.C. and parts of Quebec. A bit of snowfall again for the Canadian Rockies.
Hazards for next week:
Moderate risk of excessive heat for the Northern High Plains, Tue-Thu, Sep 10-12.
Slight risk for the Northern Rockies and the Northern Plains, Tue-Fri, Sep 10-13.
Slight risk of heavy precipitation near the Gulf and Southern Atlantic coasts, Tue-Fri, Sep 10-13.
Slight risk of high winds over the Northern and Central High Plains, Tue-Fri, Sep 10-13.
Risk for rapid onset drought for portions of the Ohio and Middle Mississippi Valley.
ON THE RADAR:
Animation of the precipitation expected this week. For Colorado, a hint of snow is possible in RMNP, and the local forecast has been posted to Weather5280.com.
IN THE GAUGES:
Total precipitation for the week.
RECORDS MADE TO BE BROKEN:
Potential record highs this week followed by the record lows.
Tropical Tidings:
There are three areas to watch for potential development this week. The three are indicated with the yellow “X.”
ARE YOU CIRRUS?!
It is estimated that 100 lightning flashes occur each second somewhere on the Earth, adding up to nearly 8 million lightning flashes per day.
As we close out 2025 and ring in the new year, the weather pattern stays anything but quiet. A multi-day lake-effect snow event is burying areas downwind of Lakes Erie and Ontario, where over 3 feet of snow could fall in the most persistent bands—creating whiteout squalls and treacherous travel through New Year's Day. Meanwhile, Arctic air is spilling deep into the Southeast, sending temperatures below freezing as far south as Florida, with frost and freeze alerts in place. On the other side of the country, a Pacific storm system will bring rounds of heavy rain and a flash flood threat to Southern California, especially around Los Angeles, starting late New Year's Eve. Elsewhere, a couple of fast-moving clippers will spread freezing rain and snow to Alberta, then snow across the Midwest, Ohio Valley, and into New England, while a developing storm may bring soaking rain and thunderstorms from the Deep South to the Southeast Coast by the weekend. Even Northern California faces an atmospheric river event late week, setting the stage for an active and disruptive start to 2026.