Hurricane Gaston
Public Advisory 39A
376
WTNT32 KNHC 011136
TCPAT2
BULLETIN
HURRICANE GASTON INTERMEDIATE ADVISORY NUMBER 39A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016
800 AM AST THU SEP 01 2016
...GASTON SLOWLY WEAKENING WHILE IT MOVES TOWARDS THE WESTERN
AZORES...
SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...37.2N 41.9W
ABOUT 725 MI...1170 KM W OF FAIAL ISLAND IN THE CENTRAL AZORES
ABOUT 810 MI...1310 KM W OF LAJES AIR BASE IN THE AZORES
MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H
PRESENT MOVEMENT...ENE OR 65 DEGREES AT 26 MPH...43 KM/H
MINIMUM CENTRAL PRESSURE...981 MB...28.97 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
None.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* Flores and Corvo in the western Azores
A Tropical Storm Watch is in effect for...
* Faial, Pico, Graciosa, Sao Jorge, and Terceira in the central
Azores
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area within 36 hours.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
For storm information specific to your area, please monitor products
issued by your national meteorological service.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 800 AM AST (1200 UTC), the center of Hurricane Gaston was located
near latitude 37.2 North, longitude 41.9 West. Gaston is moving
toward the east-northeast near 26 mph (43 km/h), and this general
motion is expected to continue during the next day or two. On the
forecast track, the center of Gaston will move near the western
Azores on Friday and the central Azores by Friday night.
Maximum sustained winds have decreased to near 85 mph (140 km/h)
with higher gusts. Additional weakening is forecast during the next
48 hours, and Gaston is expected to become a tropical storm by early
Friday before it reaches the western Azores.
Hurricane-force winds extend outward up to 45 miles (75 km) from
the center and tropical-storm-force winds extend outward up to 175
miles (280 km).
The estimated minimum central pressure is 981 mb (28.97 inches).
HAZARDS AFFECTING LAND
----------------------
WIND: Tropical storm conditions are expected in the western Azores
on Friday. Tropical storm conditions are possible in the central
Azores late Friday and Friday night.
NEXT ADVISORY
-------------
Next complete advisory at 1100 AM AST.
$$
Forecaster Brennan
459
WTNT34 KNHC 011152
TCPAT4
BULLETIN
TROPICAL STORM HERMINE INTERMEDIATE ADVISORY NUMBER 15A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092016
700 AM CDT THU SEP 01 2016
...HERMINE STRENGTHENS...
SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...27.1N 86.2W
ABOUT 195 MI...310 KM SSW OF APALACHICOLA FLORIDA
ABOUT 235 MI...380 KM WSW OF TAMPA FLORIDA
MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H
PRESENT MOVEMENT...NNE OR 20 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...992 MB...29.29 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
None.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Hurricane Warning is in effect for...
* Suwannee River to Mexico Beach
A Hurricane Watch is in effect for...
* Anclote River to Suwannee River
* West of Mexico Beach to Destin
A Tropical Storm Warning is in effect for...
* Anclote River to Suwannee River
* West of Mexico Beach to Destin
* Marineland to South Santee River
A Tropical Storm Watch is in effect for...
* North of South Santee River to Surf City
Interests along the United States east coast elsewhere in North
Carolina should monitor the progress of this system.
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 48-HOUR OUTLOOK
------------------------------
At 700 AM CDT (1200 UTC), the center of Tropical Storm Hermine was
located near latitude 27.1 North, longitude 86.2 West. Hermine is
moving toward the north-northeast near 12 mph (19 km/h), and this
motion with a slight increase in forward speed is expected during
the next day or so. On the forecast track, the center of Hermine
will be near the Florida coast in the warning area tonight or early
Friday.
Maximum sustained winds have increased to near 65 mph (100 km/h)
with higher gusts. Additional strengthening is anticipated, and
Hermine is expected to be a hurricane by the time landfall occurs.
Tropical-storm-force winds extend outward up to 140 miles (220 km)
to the east and southeast of the center.
The estimated minimum central pressure from a NOAA Hurricane Hunter
plane was 992 mb (29.29 inches).
HAZARDS AFFECTING LAND
----------------------
WIND: Hurricane conditions are expected to reach the coast
within the warning area beginning tonight. Winds are expected to
first reach tropical storm strength by this afternoon, making
outside preparations difficult or dangerous. Preparations to
protect life and property should be rushed to completion. Tropical
storm conditions are expected to begin within the warning area along
the Atlantic coast on Friday. Tropical storm conditions are
possible in the tropical storm watch area by Friday night and
Saturday.
STORM SURGE: The combination of a dangerous storm surge and the
tide will cause normally dry areas near the coast to be flooded by
rising waters moving inland from the shoreline. There is a danger
of life-threatening inundation within the next 36 hours along the
Gulf coast of Florida from Aripeka to Indian Pass. For a depiction
of areas at risk, please see the Prototype National Weather Service
Storm Surge Watch/Warning Graphic. Persons located within these
areas should take all necessary actions to protect life and property
from rising water. Promptly follow any instructions, including
evacuation orders, from local officials.
The water could reach the following heights above ground if the
peak surge occurs at the time of high tide...
Destin to Indian Pass...1 to 3 feet
Indian Pass to Chassahowitzka...4 to 7 feet
Chassahowitzka to Aripeka...2 to 4 feet
Aripeka to Bonita Beach...including Tampa Bay...1 to 3 feet
Florida-Georgia line to Cape Fear...1 to 3 feet
The Prototype National Weather Service Storm Surge Watch/Warning
Graphic is a depiction of areas that would qualify for inclusion
under a storm surge watch or warning currently under development by
the National Weather Service and planned for operational use in
2017. This prototype graphic is available at
www.hurricanes.gov/graphics_at4.shtml?wsurge
RAINFALL: Hermine is expected to produce storm total rainfall
accumulations of 5 to 10 inches over portions of northwest Florida
and southern Georgia through Friday, with possible isolated maximum
amounts of 20 inches. On Friday and Saturday, Hermine is expected to
produce totals of 4 to 8 inches with local amounts of 10 inches
possible across portions of eastern Georgia, South Carolina, and
eastern North Carolina through Saturday. These rains may cause
life-threatening flash flooding.
TORNADOES: A few tornadoes are possible this afternoon into Friday
morning over north Florida and southeast Georgia. The tornado risk
will continue across the eastern Carolinas from Friday morning into
Friday night.
NEXT ADVISORY
-------------
Next complete advisory at 1000 AM CDT.
$$
Forecaster Pasch
