Hurricane Gaston
Public Advisory 45
176
WTNT32 KNHC 022034
TCPAT2
BULLETIN
TROPICAL STORM GASTON ADVISORY NUMBER 45
NWS NATIONAL HURRICANE CENTER MIAMI FL AL072016
500 PM AST FRI SEP 02 2016
...GASTON WEAKENING RAPIDLY...
...LIKELY TO BECOME A REMNANT LOW SOON...
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...39.6N 30.4W
ABOUT 115 MI...185 KM NW OF FAIAL ISLAND IN THE CENTRAL AZORES
ABOUT 185 MI...300 KM WNW OF LAJES AIR BASE IN THE AZORES
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...ENE OR 70 DEGREES AT 17 MPH...28 KM/H
MINIMUM CENTRAL PRESSURE...1000 MB...29.53 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
* Faial, Pico, Graciosa, Sao Jorge, and Terceira in the central
Azores
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 500 PM AST (2100 UTC), the center of Tropical Storm Gaston was
located near latitude 39.6 North, longitude 30.4 West. Gaston is
moving toward the east-northeast near 17 mph (28 km/h), and a turn
toward the northeast is expected over the next day or so. On the
forecast track, the center of Gaston will pass north of the central
Azores tonight.
Maximum sustained winds have decreased to near 50 mph (85 km/h) with
higher gusts. Continued weakening is forecast, and Gaston will
likely become a remnant low tomorrow.
Tropical-storm-force winds extend outward up to 150 miles (240 km)
from the center.
The estimated minimum central pressure is 1000 mb (29.53 inches).
HAZARDS AFFECTING LAND
----------------------
WIND: Tropical storm conditions are expected over portions of the
central Azores tonight.
RAINFALL: Gaston is expected to produce less than an inch of
additional rain across the Azores through Saturday.
SURF: Swells generated by Gaston are affecting the Azores and will
continue into Saturday. These swells are likely to cause
life-threatening surf and rip current conditions. For more
information, please consult products from your local weather office.
NEXT ADVISORY
-------------
Next intermediate advisory at 800 PM AST.
Next complete advisory at 1100 PM AST.
$$
Forecaster Pasch
572
WTNT34 KNHC 022043
TCPAT4
BULLETIN
TROPICAL STORM HERMINE ADVISORY NUMBER 22
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092016
500 PM EDT FRI SEP 02 2016
...CENTER OF HERMINE PASSING NEAR CHARLESTON WITH STRONG WINDS
AND HEAVY RAIN...
...DANGEROUS STORM SURGE EXPECTED IN THE HAMPTON ROADS AREA...
SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...33.0N 80.5W
ABOUT 30 MI...50 KM WNW OF CHARLESTON SOUTH CAROLINA
ABOUT 55 MI...90 KM NNE OF HILTON HEAD ISLAND SOUTH CAROLINA
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...NE OR 55 DEGREES AT 20 MPH...31 KM/H
MINIMUM CENTRAL PRESSURE...993 MB...29.33 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
The Tropical Storm Warning has been extended northward from Fenwick
Island, Delaware, to Sandy Hook, New Jersey, including Delaware Bay.
The Tropical Storm Warning has been discontinued south of Altamaha
Sound, Georgia.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* Altamaha Sound to Sandy Hook
* Pamlico and Albemarle Sounds
* Chesapeake Bay from Drum Point southward
* Tidal Potomac from Cobb Island eastward
* Delaware Bay
A Tropical Storm Watch is in effect for...
* North of Sandy Hook to west of Watch Hill
Interests elsewhere along the United States northeast coast should
monitor the progress of this system.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area within 36 hours.
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 500 PM EDT (2100 UTC), the center of Tropical Storm Hermine was
located by NOAA Doppler radar and surface observations inland
over southern South Carolina near latitude 33.0 North, longitude
80.5 West. Hermine is moving toward the northeast near 20 mph (31
km/h) and this motion is expected to continue through Sunday with a
gradual decrease in forward speed during that time. On the
forecast track, the center of Hermine will move across coastal
South Carolina this evening, move across coastal North Carolina
tonight and Saturday morning, and move offshore of the North
Carolina coast by Saturday afternoon.
Maximum sustained winds are near 50 mph (85 km/h) with higher gusts.
Little change in strength is expected tonight and early Saturday
while the center of Hermine remains over land. Strengthening is
forecast after the center moves offshore, and Hermine could be near
hurricane intensity by late Sunday.
Tropical-storm-force winds extend outward up to 185 miles (295 km),
mainly to the south and east of the center.
A station at Folly Island, South Carolina, recently reported a
sustained wind of 44 mph (70 km/h) and a gust of 59 mph (94 km/h).
Buoy 41029, located just northeast of Charleston Harbor, recently
reported a sustained wind of 40 mph (65 km/h) and a wind gust of 58
mph (94 km/h).
The estimated minimum central pressure based on surface observations
is 993 mb (29.33 inches).
HAZARDS AFFECTING LAND
----------------------
WIND: Tropical storm conditions will continue to spread northward
within the warning area along the Atlantic coast through Saturday
night. Tropical storm conditions are possible in the watch area by
late Sunday or Sunday night.
STORM SURGE: The combination of a 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 during the next 24 hours in the Hampton
Roads area. Persons within this area should take all necessary
actions to protect life and property from rising water. Promptly
follow all instructions, including evacuation orders, from local
officials. There is also the possibility of life-threatening
inundation during the next 48 hours at most coastal locations
between the North Carolina/Virginia border and Bridgeport,
Connecticut.
For a depiction of areas at risk, please see the Prototype Storm
Surge Watch/Warning graphic, which displays 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. The Prototype Graphic is available at
www.hurricanes.gov/graphics_at4.shtml?wsurge
The water could reach the following heights above ground if the
peak surge occurs at the time of high tide...
Hampton Roads area...3 to 5 feet
Elsewhere from the NC/VA border to Bridgeport, CT...2 to 4 feet
RAINFALL: Hermine is expected to produce storm total rainfall
accumulations of 5 to 10 inches with possible isolated maximum
amounts of 15 inches over the southeastern United States and
portions of the lower mid Atlantic from southern and eastern Georgia
into South Carolina and eastern North Carolina. Across southeastern
Virginia and the lower Eastern Shore of Virginia and Maryland, storm
total rainfall amounts of 4 to 8 inches are expected. These rains
may cause life-threatening floods and flash floods. Rainbands south
of Hermine are expected to bring an additional 1 to 3 inches of
rainfall across portions of central and northern Florida. Heavy
rainfall could reach the coastal areas of Delaware and New Jersey
beginning Saturday night.
TORNADOES: A few tornadoes are possible this evening over coastal
areas of North Carolina and northeastern South Carolina.
NEXT ADVISORY
-------------
Next intermediate advisory at 800 PM EDT.
Next complete advisory at 1100 PM EDT.
$$
Forecaster Brennan
