First Warning Forecast: Gradual clearing, still on the humid side

Posted at 9:58 AM, Sep 18, 2021
and last updated 2021-09-18 11:43:23-04

Meteorologist April Loveland's First Warning Forecast

Skies will clear as the day progresses. A weak cold front will approach as the day goes on and move out on Sunday. Keeping a slight chance for a shower, but not expecting much. Temperatures will warm to the low and mid 80s today.

Drier air will build in on Sunday with mostly sunny skies and highs in the low and mid 80s, very similar to Saturday.

High pressure will build in to start the work week. Expect dry weather with highs in the low 80s under partly cloudy skies. Still looking dry on Tuesday with highs in the low 80s, but expect more cloud cover. Dewpoints will be in the mid and upper 60s Monday and Tuesday.

A strong cold front will move in on Wednesday with a chance for afternoon showers and storms. Highs will once again be in the low 80s. It will feel warmer due to an increase in the humidity. Even though Fall arrives at 3:21 PM, it won't feel very fall-like just yet. Showers will continue overnight and into the day Thursday. Thursday will be a bit breezy with highs only in the mid 70s and falling humidity.

Very fall-like to end the work week as drier air works into the area. Highs will reach the low 70s with dewpoints in the 50s!

Tropical Update:

Tropical Storm Odette is moving toward the northeast near 17 mph. A turn toward the east-northeast at a faster forward speed is expected by this evening. Odette should then slow down and turn toward the east and southeast on Monday and Tuesday. On the forecast track, the center of Odette will pass south of Atlantic Canada Sunday and Monday. Maximum sustained winds are near 45 mph with higher gusts. Strengthening is forecast during the next day or two, and Odette is expected to become a strong post-tropical low by tonight. Tropical-storm-force winds extend outward up to 195 miles from the center.

An area of low pressure is located about 650 miles miles east-southeast of the northern Leeward Islands. Environmental conditions are expected to be conducive for further development during the next day or two, and a tropical depression or tropical storm is expected to form later today or tonight while the system moves toward the west-northwest at about 15 mph. This system is expected to be near the northern Leeward Islands on Monday and Tuesday, and interests there should monitor its progress. Upper-level winds are likely to become less conducive for development when the system reaches the southwestern Atlantic by the early to middle part of next week.

* Formation chance through 48 hours: HIGH (90%)

* Formation chance through 5 days: HIGH (90%)

A broad area of low pressure is located over the far eastern Atlantic a few hundred miles south of the Cabo Verde Islands. The associated shower and thunderstorm activity has become a little better organized since yesterday, and environmental conditions appear conducive for further development during the next couple of days. A tropical depression could form while the system moves northwestward at about 10 mph to the west of the Cabo Verde Islands before it reaches cooler waters and stronger upper-level winds early next week.

* Formation chance through 48 hours: MEDIUM (40%)

* Formation chance through 5 days: MEDIUM (40%)

Meteorologist April Loveland

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