Tropical Storm Isaias Wrap

Bill's Blog

11:30 AM WEDS. UPDATE At this hour, there are still over 3 million customers without power from North Carolina to Eastern Canada in the wake of Tropical Storm Isaias. The storm produced the most damage in the Mid-Atlantic area (could be into the hundreds of millions of dollars) since Hurricane Sandy in 2012.

Seven tornadoes were reported Tuesday from Isaias in DE, NJ and MD. There were general wind gusts of 50-65 mph all along the East Coast from N. Carolina to the coast of Maine. The peak gust I was recorded in E. Canada was 57 mph. The storms left nearly 3 1/2 million customers without electricity from the Carolinas to Canada. As I write this, there are still 973,868 customers without power just in New Jersey, where 1/3rd of the state lost power. Also, 794,212 in NY, 722,912 in CT, 160,671 in PA and 134,061 MA. Nearly 40,000 lost power in E. Canada.

The threat of flooding was lower because of the rapid movement of the storm. Here’s some 24-hour rainfall totals: 3.58″ at Albany, 2.72″ at Philadelphia, 2.58″ at Washington D.C., 2.28 at Wilkes Barre PA and 1.96″ at Burlington VT. Here’s an eastern U.S. surface weather map.

There have been literally thousands of reports of downed trees and wires.

There was a gust to 72 mph at a buoy that was about 35 miles offshore of the Carolinas. Another buoy had a gust to 55 mph. Fort Johnson measured a gust to 51 mph. A tree fell on an apartment building in Charleston, where the airport had a gust to 43 mph. Charleston reported 1.04″ of rain as of 7 pm and there was some minor local flooding. Folly Beach had a gust to 46 mph and much coastal S. Carolina had gusts to 40-45 mph.

Other peak gusts from Isaias: 69 mph on Andros Island, 60 mph at Punta Cana in the Dominican Republic, 59 mph at Long Bay Beach in the Turks and Caicos, 59 mph at Yabucoa Tanque de Agua in Puerto Rico, 59 mph at Dania Beach, Florida, 56 mph at Nassau, Bahamas. Some of these reports are at ground level and some are from the tops of lighthouses and on towers. Most peak gusts along the east Florida Coast were in the 30-40 mph range

“Isaias” is pronounced “ee-sah-EE-ahs”. Here’s the final track of the storm:

cone graphic

* If the storm is forecast to dissipate within 3 days, the “Full Forecast” and “3 day” graphic will be identical

As I write this, the National Hurricane Center has posted a Hurricane Watch for the coastal Carolinas and a Tropical Storm Watch up to Delaware. Here’s a look at when to expect the strongest winds:

time of arrival graphic

Here’s the probability of tropical storm winds

https://www.nhc.noaa.gov/storm_graphics/AT09/refresh/AL092020_wind_probs_34_F120+png/145222.png

Here’s East Coast Regional Radar:

Northeast sector loop
Go to: Most Recent Image

Here’s SE U.S. Regional Radar:

Southeast sector loop
Go to: Most Recent Image

Here’s a link to Bahamas radar. And here’s Miami radar -it’s past Miami:

Click for latest Base Reflectivity radar loop from the Miami, FL radar and current weather warnings

Click for latest Composite Reflectivity radar image from the Melbourne, FL radar and current weather warnings
Melbourne Florida radar
Click for latest Base Reflectivity radar image from the Jacksonville, FL radar and current weather warnings
Jacksonville Florida radar

Here’s Puerto Rico radar (the storm has passed Puerto Rico):

Click for latest Composite Reflectivity radar image from the Puerto Rico/Virgin Islands radar and current weather warnings

Click on the links for: The Public Advisory, Public Forecast, Forecast Discussion, Wind History, Key Messages, Key Messages in Spanish. Here’s a satellite loop:

https://cdn.star.nesdis.noaa.gov//GOES16/ABI/SECTOR/CAR/GEOCOLOR/GOES16-CAR-GEOCOLOR-1000x1000.gif

The hottest and most humid air will stay south of Michigan and our temperatures should remain a little cooler than average in the low-mid 70s (average highs are in the low 80s) through midweek, then rise into the mid 80s over the weekend.

The next tropical storm in the Atlantic will be called Josephine.

Also: While the Atlantic has been spawning tropical storm after tropical storm…it’s been record quiet in the Western Pacific – also no tropical storms in the Indian Ocean. Neat lightning pic. from the French Alps.

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