000
WTNT34 KWNH 102037
TCPAT4
BULLETIN: Post-Tropical Cyclone Isaias Advisory Number 17
NWS Weather Prediction Center College Park MD AL092026
400 PM CDT Saturday October 10, 2026
...BULLETIN: Flooding hazard continues with Isaias as it moves through...
Southeastern United States...
SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION
LOCATION...33.5N 86.9W
ABOUT 5 MI...10 KM W OF BIRMINGHAM ALABAMA
ABOUT 180 MI...290 KM S OF NASHVILLE TENNESSEE
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...NNE OR 25 DEGREES AT 15 MPH...24 KM/H
MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES
WATCHES AND WARNINGS
Summary of watches and warnings in effect:
Flood watches in effect for...
* Parts of the southeastern United States
* Southern Appalachians
High wind warning in effect for...
* PARTS OF THE SOUTHERN APPALACHIANS
WIND ADVISORY IN EFFECT FOR... * PARTS OF THE MID-SOUTH AND SOUTHERN APPALACHIANS
DISCUSSION AND FORECAST
AT 400 PM CDT (2100 UTC), THE CENTER OF POST-TROPICAL CYCLONE ISAIAS
WAS LOCATED NEAR LATITUDE 33.5 NORTH, LONGITUDE 86.9 WEST. THE
POST-TROPICAL CYCLONE IS MOVING TOWARD THE NORTH-NORTHEAST NEAR 15
MPH (24 KM/H) AND THIS MOTION IS EXPECTED TO TURN
TOWARD THE NORTHEAST AND ACCELERATE THROUGH SUNDAY.
MAXIMUM SUSTAINED WINDS ARE NEAR 30 MPH (45 KM/H) WITH HIGHER GUSTS.
LITTLE CHANGE IN STRENGTH IS EXPECTED DURING THE NEXT 48 HOURS.
THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1007 MB (29.74 INCHES).
Hazards Affecting Land
Key messages for Isaias can be found in the tropical cyclone
Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC.
Rain: Rainfall totals 3 to 6 inches with local maximums
amounts of 10 inches are possible across the southern Appalachians from northeast Georgia to western Carolina and from the upper
South Carolina coast to eastern North Carolina. Additional
rainfall amounts of 1 to 2 inches possible over the remainder
in the southeast to northern Florida.
BULLETIN: , Urban and river flooding is possible across the region, with
significant impacts, including landslides, possible across the area
Southern Appalachians. Significant river flooding across the west
Florida Panhandle will evolve today through Sunday.
For a full description of rain forecast related to
Isaias, please consult the National Weather Service storm
Graphics available at
hurricanes.gov/graphics_at4.shtml?rainqpf and the bulletin: Flood hazard
Graphics at hurricanes.gov/graphics_at4.shtml?ero.
Tornado: A few tornadoes are possible today across the east
Georgia and the Carolinas. Wind: Strong wind gusts continue to pose a threat across the area
Southeastern United States today, especially near the South
Appalachians. Scattered power outages and fallen trees and
Power lines may occur, with the risk being highest in high terrain.
SURF: Waves from Isaias will continue to affect much of the area
Gulf coasts of the United States, Mexico and western Cuba this
weekend. These swells can cause life-threatening surf and
rip current conditions. Please consult products from your local
weather office.
A description of the rip risk for the United States can be found
at: hurricanes.gov/graphics_at4.shtml?ripCurrents
The next advisory
THE NEXT COMPLETE ADVISORY WILL BE ISSUED AT 1000 PM CDT.
Prophet Roth