COLUMBIA, S.C. — Isaias has gotten a little stronger as it begins to work its way up the Florida coast and eventually to the South Carolina shore. In response, a hurricane watch in now in effect for the shores of Pee Dee region of South Carolina while a tropical storm warning remains in effect for the Lowcountry and two Midlands counties.
Latest conditions on the storm:
As of the 11 PM advisory from the National Hurricane Center, the storm had maximum sustained winds of 70 MPH. This makes it a tropical storm on the Saffir-Simpson scale, which measures hurricane intensity. The current forecast from the National Hurricane Center keeps the storm has a tropical storm as it moves across the Southeast coast.
The system continued to move towards the north-northwest at 9 MPH.
A hurricane watch is in now in effect from the border of Georgetown and Charleston Counties north to Surf City, North Carolina.
A tropical storm warning has been issued for the entire South Carolina coast.
An inland tropical storm warning has been issued for Orangeburg and Clarendon Counties.
A watch means tropical storm like conditions could be felt in that area in the next 48 hours. A warning means that tropical storm like conditions are expected in 36 hours or less.
There is also a flash flood watch in place for the Eastern Midlands, as well as portions of the Low country and through the Pee Dee.
Rainfall totals in the Eastern Midlands could be as high as 2 to 3 inches on Monday through Tuesday morning, with higher amounts closer to the coast.
The storm is moving up the coast of Floriday.
The National Hurricane Center does not expect the storm to get much stronger over the next day or so. Landfall is possible late Monday into early Tuesday between Charleston, SC and Wilmington, NC.
The graphic below shows the track from the National Hurricane Center.
There is always the chance for the track to change and the storm to shift direction as it nears the coast, but at this point, no significant changes are expected.
If we look at the so-called "spaghetti models," where each line represents a different computer model, you can see the models are in a fairly good agreement on the path of the storm.
The storm will then quickly continue it's track to the northeast and move into Canada by the end of the week.
Current Analysis: What about South Carolina?
The coastal region of South Carolina will have the highest risk for tropical storm force winds. Heavy rain will be likely for this region as well as Isaias increases the moisture.
For the Midlands, rain is increasingly expected throughout the day on Monday and into early Tuesday. The heaviest rainfall will be in the eastern portion of the area.
Any showers and storms that develop could produce locally heavy rainfall. The ground is already saturated in many areas, therefore increasing the risk of flash flooding and the reason for the flash flood watch issued.
There is a small chance of tropical storm force winds for the eastern half of the Midlands. The current chance is between 10-20% that area could have tropical storm force winds at some point.
As for the rest of the Atlantic, the NHC is also watching this area in the middle of Atlantic, but the odds of further development with this system is 60% over the next five days.
To track this system as well as any future tropical systems this season, download the WLTX App. Download the WLTX app for Android or iPhone: