The tropics are definitely active with three named systems currently churning in the Atlantic Basin. Such a number is not unusual considering Saturday is historically known as the peak of hurricane season.
September 10th marks the date when the frequency of tropical systems reaches a maximum in the Atlantic Basin.
One main reason is that ocean water temperatures are at their warmest this time of year, even though summer started nearly three months ago.
The lag between the first day of summer and when the ocean is at its warmest is due to water's ability to retain heat. Even though incoming radiation from the sun has been decreasing since late June, the heat retained by the ocean continues to exceed the heat lost until early September.
One of the most infamous tropical systems to exist in the Atlantic Basin on September 10th was Hurricane Donna in 1960.
Donna tore through the Florida Keys during the early morning hours of September 10, 1960, as a major hurricane. In addition to powerful winds, the islands were battered by a 13-foot storm surge.
Hurricane Donna is also in the record books as the only hurricane to create hurricane-force winds in Florida, the mid-Atlantic and New England. Sustained winds from Donna measured 128 mph at Sombrero Key, Fla.; 83 mph at Elizabeth City, N.C.; and 95 mph at Block Island, R.I.
None of the three named tropical systems currently churning in the Atlantic Basin pose an immediate threat to the United States.
Maria should follow in the footsteps of Katia and bypass the East Coast of the United States next week. However, that track is not set in stone.
The best threat for severe weather late Saturday will be near the Red River Valley to Southeast Texas.
Showers and thunderstorms threaten to interfere with Memorial Day festivities across more than half of the United States.
Another round of heavy rain and thunderstorms will move into the Plains over Memorial Day weekend, bringing the threat of flooding.
Memorial Day marks the unofficial start to summer and it will definitely feel like it for the holiday and the following few days across the Northeast. However, that does not mean an end to shots of cooler air.
Beachgoers heading to the Southeast coast this Memorial Day holiday weekend are being put on alert for dangerous rip currents.
Warmth will make a comeback around the Boston area for the remainder of this Memorial Day holiday weekend, seemingly fitting for the unofficial start to summer.
Snowstorm across state; daytime accumulation of 4-6".
Newton, NJ (1925)
96 degrees on the 23rd; 39 degrees on the morning of the 24th.
West Coast (1982)
Heat wave: San Francisco, CA 91 degrees, (new record; previous record 79 in 1975) San Jose, CA 84 degrees Portland, OR 85 degrees (tied record)