It has been a busy week thus far in the tropics.
Monday was quite a busy day in the Atlantic Basin with the formation of both Tropical Storm Sandy and Tropical Depression 19. By Tuesday, T.D. 19 had been upgraded to Tropical Storm Tony as it moved northeastward well east of Bermuda.
Tony will instead track to the northeast over the open waters of the Atlantic through midweek, remaining a weak tropical storm.
The lifespan of Tony may be over before Sandy even emerges from the Caribbean and reaches the Bahamas. A non-tropical storm over the north-central Atlantic Ocean should absorb Tony by late week.
Tony's remains could still bring enhanced rainfall to the Azores this weekend.
Matthew has become a hurricane in the Caribbean and may approach the U.S. during next week.
It will feel like an extended winter for those living from the northern Plains to the eastern U.S., as cold and snowy conditions last longer than normal.
Persistent downpours will raise the flood risk in part of the mid-Atlantic into Friday night, while rain will spread over the balance of the northeastern United States into the weekend.
Millions of people across the U.S. could be exposed to drinking water contaminated with chemicals from firefighting foam, according to a recent study.
The final day of September will bring a rare lunar event that hasn’t occurred since March of 2014, a Black Moon.
The holiday weekend will start on an unsettled note, but the weather should improve by Day of German Unity celebrations on Monday.
Johnstown, PA (1993)
Light snow in the city did not accumulate but up to 3" accumulated at the airport.
Goldsboro, NC (1999)
30" of rain in September.
U.S./Quebec border (1835)
Heavy snow; Hatley, P.Q. received 10 inches. Kelkenny, NH had 6 inches.