Latest NOAA advisory, and rain potential graphic.
...ISAIAS STILL EXPECTED TO MAKE LANDFALL TONIGHT AS A HURRICANE...
...STRONG WINDS AND HEAVY RAINFALL LIKELY FROM THE EASTERN
CAROLINAS TO THE MID-ATLANTIC COAST TONIGHT AND TUESDAY...
SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION
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LOCATION...31.2N 80.0W
ABOUT 115 MI...190 KM S OF CHARLESTON SOUTH CAROLINA
ABOUT 180 MI...290 KM SSW OF MYRTLE BEACH SOUTH CAROLINA
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...N OR 5 DEGREES AT 13 MPH...20 KM/H
MINIMUM CENTRAL PRESSURE...993 MB...29.32 INCHES
>DISCUSSION AND OUTLOOK
----------------------
At 200 PM EDT (1800 UTC), the center of Tropical Storm Isaias was
located by an Air Force Reserve reconnaissance aircraft and NOAA
Doppler weather radars near latitude 31.2 North, longitude 80.0
West. Isaias is moving toward the north near 13 mph (20 km/h), and
this general motion is expected to continue this afternoon. A turn
toward the north-northeast along with a slight increase in forward
speed is expected by early this evening, followed by a faster motion
tonight and Tuesday. On the forecast track, the center of Isaias
will pass well east of the Georgia coast through this afternoon.
The center of Isaias will then approach the coasts of northeastern
South Carolina and southern North Carolina within the hurricane
warning area this evening. The center will then move inland over
eastern North Carolina tonight, and move along the coast of the
mid-Atlantic states on Tuesday and into the northeastern United
States Tuesday night.
Complete advisory at
https://www.nhc.noaa.gov/text/refresh/MIATCPAT4+shtml/031758.shtml 
