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Subtropical Storm Alberto Advisory Number 12
NWS National Hurricane Center Miami FL AL012018
1000 PM CDT Sun May 27 2018
...ALBERTO CONTINUES TO HEAD FOR THE NORTHERN GULF COAST...
SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION
ABOUT 205 MI...330 KM W OF TAMPA FLORIDA
ABOUT 95 MI...155 KM SSW OF APALACHICOLA FLORIDA
MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...991 MB...29.27 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
The Tropical Storm Warning from the Anclote River to the Suwannee
River is discontinued.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Storm Surge Watch is in effect for...
* Crystal River to Navarre Florida
A Tropical Storm Warning is in effect for...
* Suwannee River to the Mississippi/Alabama border
A Storm Surge Watch means there is a possibility of life-
threatening inundation, from rising water moving inland from the
coastline, in the indicated locations. For a depiction of areas at
risk, please see the National Weather Service Storm Surge
Watch/Warning Graphic, available at hurricanes.gov.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area.
For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.
DISCUSSION AND OUTLOOK
At 1000 PM CDT (0300 UTC), the center of Subtropical Storm Alberto
was located near latitude 28.5 North, longitude 85.8 West. The
storm is moving toward the northwest near 9 mph (15 km/h). A north-
northwestward to northward motion is expected Monday through
Wednesday. On the forecast track, the center of Alberto will move
over the northern Gulf of Mexico overnight and cross the northern
Gulf Coast in the warning area on Monday. Alberto is expected to
move inland into the Tennessee Valley on Tuesday and move into the
Ohio Valley on Wednesday.
Maximum sustained winds are near 65 mph (100 km/h) with higher
gusts. Little change in strength is expected before Alberto reaches
the northern Gulf Coast. Steady weakening is expected after
landfall, and Alberto is forecast to become a tropical depression
Monday night or Tuesday.
Winds of 40 mph extend outward up to 115 miles (185 km) from the
The minimum central pressure reported by an Air Force Hurricane
Hunter aircraft is 991 mb (29.27 inches).
HAZARDS AFFECTING LAND
RAINFALL: Alberto is expected to produce the following rain
accumulations through Tuesday:
Central Cuba...Additional 5 to 10 inches, isolated storm-totals of
20 to 25 inches.
The Florida panhandle into much of Alabama and western Georgia...4
to 8 inches, isolated 12 inches.
The Florida Keys and south Florida...Additional 3 to 6 inches,
isolated storm totals of 10 inches.
Rest of the Florida peninsula...1 to 4 inches.
Rest of the Southeast and Tennessee Valley into the lower mid
Atlantic from Tennessee east through the Carolinas...2 to 6 inches.
Rains in Cuba could produce life-threatening flash floods and
mudslides. Flooding and flash flooding are possible in the
southeast United States, including Florida.
WIND: Tropical storm conditions will spread across the warning area
overnight and continue through Monday.
STORM SURGE: The combination of storm surge and the tide will cause
normally dry areas near the coast to be flooded by rising waters
moving inland from the shoreline. The water could reach the
following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide...
Crystal River to Navarre Florida...2 to 4 ft
The deepest water will occur along the immediate coast. Surge-
related flooding depends on the relative timing of the surge
and the tidal cycle, and can vary greatly over short distances. For
information specific to your area, please see products issued by
your local National Weather Service forecast office.
TORNADOES: A couple of brief tornadoes are possible on Monday
across much of Florida into central and southern Georgia, southern
South Carolina, and southeastern Alabama.
SURF: Swells generated by Alberto will affect the eastern and
northern Gulf Coast through Tuesday. These swells are likely
to cause life-threatening surf and rip current conditions. For more
information, consult products from your local weather office.
Next intermediate advisory at 100 AM CDT.
Next complete advisory at 400 AM CDT.