UPDATE 9/19/21 11 PM
Tropical Storm Peter now has wind of 50 mph which is a bit stronger than the last advisory, but it is still moving to the WNW at 14 mph. Peter will pass north of the Leeward Islands early this week and is not likely to strengthen. With southwesterly wind shear, tropical storm force wind extends 140 miles primarily to the northeast of its center. Even though Peter is moving over warm water, it will start to weaken due to continued strong wind shear. Peter is not expected to impact any land areas.
FOX 4 METEOROLOGIST ERIC STONE
UPDATE 9/19/21 5 PM
Tropical Storm Peter continues to move to the WNW at 17 mph and packs wind of 45 mph, but tropical storm force wind continues out to 125 miles to the northeast of its center as strong southwesterly shear continues. Even though Peter is over warm water wind shear will keep it from strengthening any more than it is right now. Peter will move well to the north of the Leeward Islands and will not make landfall anywhere.
FOX 4 METEOROLOGIST ERIC STONE
UPDATE 9/19/21 11 AM
Tropical Storm Peter is encountering strong wind shear and most of the convection is now to the northeast and tropical storm force wind extends 100 miles to the northeast of the center. Peter will continue to encounter strong vertical wind shear which will keep the storm from strengthening and in fact, will weaken the storm. Peter has maximum sustained wind of 45 mph which might be about as strong as it gets as it moves to the WNW at 17 mph. It will eventually turn to the north and then northeast missing the Leeward Islands and any other land areas.
FOX 4 METEOROLOGIST ERIC STONE
UPDATE 9/19/21 5 AM
T.D. #16 has now strengthened into Tropical Storm Peter which is the sixteenth named storm of the season with maximum sustained wind of 40 mph. It continues to move to the NW at 15 mph. Deep convection has increased since last night and tropical storm force wind extends 45 miles from the center. Peter may strengthen a bit over warm water the next couple days, but wind shear will prevent rapid weakening. By the middle of the week Peter will be over cooler water with stronger wind shear which will weaken the storm. Peter is expected to move WNW for the next couple days before the mid level ridge breaks down. Peter will then move to the north and eventually to the northeast most likely not making landfall anywhere. Peter should move far enough away from the Leeward Islands for little or no impact to take place from the storm.
FOX 4 METEOROLOGIST ERIC STONE
FIRST UPDATE 9/18/21 11 PM
Tropical Depression 16 has just formed just under 700 miles east of the northern Leeward Islands. Maximum sustained wind is 35 mph and it is moving to the WNW at 14 mph. Minimum central pressure is at 1008 mb. It now has a well defined center of circulation and sufficiently organized deep convection to be classified a tropical depression. It is moving along the southwest side of a ridge and this motion should continue for the next few days before turning to the northwest and then to the north once the ridge breaks down. After that it appears as though it will move to the NNE away from the United States. This system is not expected to impact the United States and may not make landfall anywhere.
FOX 4 METEOROLOGIST ERIC STONE
