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Sunday, September 19, 2021
HomeWeatherActive Weather Likely as Tropical Storm Peter Nears

Active Weather Likely as Tropical Storm Peter Nears

Above-average moisture levels in the atmosphere, increasing instability and a developing upper-level trough to the northeast may make for some active weather Sunday and Sunday night across the local area. Daytime highs are forecast to peak into the upper 80s to low 90s with winds that are forecast to shift from the east to the east-northeast at 10-15 miles per hour with higher gusts.

Mariners can anticipate seas to four feet and winds to 15 knots Sunday. There is a low risk of rip currents across the territorial coastlines. Deteriorating marine and surf conditions as well as an increase in shower activity is expected over the next few days due to the passage of Tropical Storm Peter well northeast of the islands.

IN THE TROPICS
Tropical Storm Peter is located approximately 630 miles east of the northern Leeward Islands near 18 degrees North, 53.5 degrees West. This position is about 740 miles east of the Virgin Islands. The tropical storm has top sustained winds of 40 miles per hour and is tracking to the northwest at 15 miles per hour. A turn to the west-northwest is forecast to occur by Sunday afternoon, with that motion continuing through Wednesday. Peter is expected to pass well to the north of the northern Leeward Islands Monday and Tuesday. Tropical-storm-force winds extend outward up to 45 miles from the center, mainly to the northeast and southeast of the center.

On the current forecast track, the center of the tropical storm will make its closest point of approach to the territory on Tuesday morning when the center passes approximately 290 miles northeast of St. Thomas. At that time, Peter will be a tropical storm with top winds of 40 miles per hour while tracking to the west-northwest at 12 miles per hour. The outer bands south of Tropical Storm Peter could produce rainfall totals of one to two inches across portions of the northern Leeward Islands, including the Virgin Islands, as well as Puerto Rico late Sunday into Tuesday. Swells generated by Tropical Storm Peter are expected to reach the northern Leeward Islands Sunday night and Monday. These swells could cause life-threatening surf and rip current conditions.

Also in the tropics, a new tropical depression formed this morning in the far eastern tropical Atlantic. Tropical Depression 17, which poses no immediate threat to the Caribbean region, was located approximately 330 miles southwest of the southernmost Cape Verde Islands. The depression has top winds of 35 miles per hour and is moving to the west-northwest at 14 miles per hour.

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Sunrise: 6:08 a.m.
Sunset: 6:18 p.m.

OBSERVATIONS AT THE 3D MANDAHL WEATHER STATION
Saturday’s high temperature: 87 degrees at 11:42 a.m.
Saturday’s low temperature: 77 degrees at 4:57 a.m.
Peak wind gust: 17 miles per hour at 7:27 p.m.
24-hour rainfall: 0.00 inches
Month rain: 3.61 inches
Year rain: 29.81 inches

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