Contrary to our record number of record low temperatures in July, it is still tropical season and the second storm of the Atlantic season has been named. Bertha is in the central Atlantic and appears to be on track for the Lesser Antilles Islands before clipping the northwest corner of the Caribbean and turning north.
Bertha has winds of 45 mph and is located 200 miles from Barbados.
The path of Bertha clips the northeastern part of the Caribbean with the expectation to cross over Puerto Rico and the Dominican Republic on Saturday, then passing on the east side of the Bahamas on Sunday. Winds should remain at tropical storm intensity.
The 5 day forecast track does appear to be ominous sitting off of the east
coast, but at that point it will already be on a standard curve to the north and likely to turn away from the east coast. The main threat for now appears to be heavy surf for the beaches.
At the initial glance when this was a tropical wave off of the coast of Africa, there was some buzz that this would be a monster storm. There is another wave behind it, and this is the time of year we look to Africa for the breeding ground of storms. However there are two things to point out this season.
1. There is a building El Nino in the Pacific Ocean. That is just a track of a large warm water pocket in the eastern tropical Pacific, but it increases the upper level winds that can cut off storms in the Atlantic.
2. S.A.L.: The Saharan Air Layer as seen in the slide show is an important and often overlooked component in the tropics. It is ultra dry air that can contain dust particles from the Saharan Desert. This is a tropical storm killer either with dry air or a layer of dust on the ocean inhibiting evaporation and storm development.
SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
ABOUT 170 MI...270 KM E OF BARBADOS
ABOUT 295 MI...470 KM ESE OF MARTINIQUE
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...WNW OR 290 DEGREES AT 20 MPH...31 KM/H
MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY...
A TROPICAL STORM WARNING HAS BEEN ISSUED FOR PUERTO
RICO...VIEQUES...CULEBRA AND THE U.S. VIRGIN ISLANDS.
THE GOVERNMENT OF ANTIGUA AND BARBUDA HAS ISSUED A TROPICAL
STORM WARNING FOR THE BRITISH VIRGIN ISLANDS.
A TROPICAL STORM WARNING COULD BE REQUIRED FOR MARTINIQUE LATER
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* ST. LUCIA
* PUERTO RICO
* U.S. VIRGIN ISLANDS
* BRITISH VIRGIN ISLANDS
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* ST. VINCENT AND THE GRENADINES
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN
THE NEXT 24 HOURS.
A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.
Other articles you might be interested in:
Prior Arthur reports:
Superstorm Sandy Related Articles:
*Kid Weather App:
Learn more cool things like this about weather. See the app I made with my son who is now in 1st grade. We have over 400 items of trivia plus live weather and forecasts for kids. See more and links for your device atkidweatherapp.com
Also keep up to date via
Facebook: Justin Berk, Meteorologist