August 4 Tornado Watch Until Noon And Tropical Storm Isaias Warning

Tuesday August 4 2020

Tropical Storm Isaias still had top winds of 70 mph at 5 AM. The storm is moving faster to the North-Northeast at 28 mph. That means the worst conditions arrived a few hours sooner, but it will end sooner as well. The worst conditions are now expected to be between 7 AM ad 1 PM.

A Tornado Watch is in place until noon including Baltimore, Annapolis, and across the Bay to Delmarva. We have already had warnings issues and more on the way.

Tornado Watch

Small EF-0 and EF-1 tornados are coming with tropical systems. These will likely be rain wrapped and hidden, but locally can push winds close to 100 mph in their path.

⚠️When rotations is spotted on Doppler Radar, a WARNING will be issued for that area.

 

A Flash Flood Watch is still in place, and some warnings have been issued. More is on the way with rainfall totals still expected between 3 and 6 inches.

This post has the latest conditions, radar and satellite loops, and forecast highlight. Please check back as I will be adding simulation timelines for rain and wind next.

 

Tropical Storm Isaias Update

Radar Loop

 

Satellite

 

Updated Track and Timing

The forward speed of 28 mph means this arrives and deepest a little sooner. The peak intensity for our region should be 7 AM to 1 PM

SUMMARY OF 500 AM EDT…0900 UTC…INFORMATION

• LOCATION…36.3N 77.5W
• ABOUT 15 MI…25 KM SE OF ROANOKE RAPIDS NORTH CAROLINA
• ABOUT 85 MI…135 KM WSW OF NORFOLK VIRGINIA
• MAXIMUM SUSTAINED WINDS…70 MPH…110 KM/H
• PRESENT MOVEMENT…NNE OR 20 DEGREES AT 28 MPH…44 KM/H
• MINIMUM CENTRAL PRESSURE…993 MB…29.33 INCHES

 

 

Tropical Storm Warning

This area should have a period of sustained winds over 39 mph. See the gusts below

Forecast Winds

Sustained Winds (1 minute average)

Direction is as important as speed on the water. By noon, the winds will shift to the west, sloshing the water and flooding away from the western shore and to the Eastern Shore.

Now Ready: Click here to see the 8 AM update and Hourly Wind Forecast Timeline 

 

Peak Wind Gust Forecast

(Top 3 to 10 second speed)

 

 

Flash Flooding

Warnings will be issued when local rainfall exceeds draining.

 

Noon Radar Simulation Snapshot

Now Ready: Click here to see the hourly rain timeline slider

 

 

Total Rainfall Forecast

 

Also See:

Click here for : Tropical Storm Isaias Tracking Page