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Tropical Storm Debby Public Advisory Number 19
Issued at 1100 PM EDT Tue Aug 06 2024
101
WTNT34 KNHC 070233
TCPAT4
BULLETIN
Tropical Storm Debby Advisory Number 19
NWS National Hurricane Center Miami FL AL042024
1100 PM EDT Tue Aug 06 2024
...DEBBY MOVING SLOWLY EASTWARD OFFSHORE OF THE COASTS OF GEORGIA
AND SOUTH CAROLINA...
...MAJOR FLOOD THREAT FOR PORTIONS OF THE SOUTHEASTERN UNITED
STATES THIS WEEK...
SUMMARY OF 1100 PM EDT...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...31.8N 80.2W
ABOUT 50 MI...80 KM ESE OF SAVANNAH GEORGIA
ABOUT 70 MI...115 KM SSW OF CHARLESTON SOUTH CAROLINA
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...E OR 90 DEGREES AT 5 MPH...7 KM/H
MINIMUM CENTRAL PRESSURE...996 MB...29.42 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
The Tropical Storm Warning has been discontinued for the coast of
Georgia from the mouth of the Savannah River southward.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Storm Surge Watch is in effect for...
* North of South Santee River, South Carolina to Cape Fear, North
Carolina
A Tropical Storm Warning is in effect for...
* North of the mouth of thee Savannah River to Surf City, North
Carolina
A Tropical Storm Watch is in effect for...
* North of Surf City, North Carolina to Beaufort Inlet, North
Carolina
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 during the next 48 hours.
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.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
Interests elsewhere along the southeastern coast of the United
States should monitor the progress of this system. Additional
watches or warnings may be required on Wednesday.
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 1100 PM EDT (0300 UTC), the center of Tropical Storm Debby was
located near latitude 31.8 North, longitude 80.2 West. Debby is
moving toward the east near 5 mph (7 km/h). A slow motion toward
the east and then north is expected through Thursday night. On the
forecast track, the center of Debby is expected to slowly move away
from the coast of Georgia and South Carolina tonight, continue to
drift offshore through early Thursday, and then move inland over
South Carolina on Thursday.
Maximum sustained winds are near 40 mph (65 km/h) with higher gusts.
Some strengthening is forecast while the center of Debby remains
offshore. Weakening is expected Thursday night and Friday after
landfall.
Tropical-storm-force winds extend outward up to 205 miles (335 km)
from the center.
The estimated minimum central pressure based on surface
observations is 996 mb (29.42 inches).
HAZARDS AFFECTING LAND
----------------------
Key messages for Debby can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC.
WIND: Tropical storm conditions are expected to continue along the
coast of South Carolina within the tropical storm warning area
through Thursday night. Tropical storm conditions are expected
within the tropical storm warning area in North Carolina beginning
early Wednesday. Tropical Storm conditions are possible within the
Tropical Storm Watch area in North Carolina beginning Wednesday.
STORM SURGE: The combination of storm surge and 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...
South Santee River, SC to Cape Fear, NC...2-4 ft
For a complete depiction of areas at risk of storm surge inundation,
please see the National Weather Service Peak Storm Surge Graphic,
available at hurricanes.gov/graphics_at4.shtml?peakSurge.
RAINFALL: Debby is expected to produce potentially historic storm
total rainfall of 10 to 20 inches, with maximum amounts of 25
inches, bringing areas of catastrophic flooding across portions of
eastern South Carolina and southeast North Carolina through Friday.
From central South Carolina to the Upstate of South Carolina,
northward into Southwest Virginia, portions of the Mid-Atlantic
States, western and northern New York State into Northern New
England, 3 to 6 inches with local amounts to 8 inches, are expected
through Saturday. This rainfall will likely result in areas of
considerable flash and urban flooding, with river flooding possible.
An additional scattered 1 to 3 inches of rainfall is possible across
southeast Georgia through tonight, which may aggravate any ongoing
flooding conditions across that vicinity.
For a complete depiction of forecast rainfall and flash flooding
associated with Debby, please see the National Weather Service
Storm Total Rainfall Graphic, available at
hurricanes.gov/graphics_at4.shtml?rainqpf and the Flash Flood Risk
graphic at hurricanes.gov/graphics_at4.shtml?ero. For a list of
rainfall observations (and wind reports) associated this storm, see
the companion storm summary at WBCSCCNS4 with the WMO header ACUS44
KWBC or at the following link:
www.wpc.ncep.noaa.gov/discussions/nfdscc4.html.
TORNADOES: A few tornadoes are possible over portions of coastal
South Carolina and North Carolina through Wednesday morning.
SURF: Large swells will continue to affect the Southeast U.S.
coast through the end of the week. These conditions are likely to
cause life-threatening surf and rip current conditions. Please
consult products from your local weather office.
NEXT ADVISORY
-------------
Next intermediate advisory at 200 AM EDT.
Next complete advisory at 500 AM EDT.
$$
Forecaster Beven
Categories: Weather
Tropical Storm Debby Forecast Advisory Number 19
Issued at 0300 UTC WED AUG 07 2024
100
WTNT24 KNHC 070233
TCMAT4
TROPICAL STORM DEBBY FORECAST/ADVISORY NUMBER 19
NWS NATIONAL HURRICANE CENTER MIAMI FL AL042024
0300 UTC WED AUG 07 2024
TROPICAL STORM CENTER LOCATED NEAR 31.8N 80.2W AT 07/0300Z
POSITION ACCURATE WITHIN 25 NM
PRESENT MOVEMENT TOWARD THE EAST OR 90 DEGREES AT 4 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 996 MB
MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT.
34 KT.......170NE 180SE 0SW 0NW.
12 FT SEAS..210NE 210SE 0SW 0NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.
REPEAT...CENTER LOCATED NEAR 31.8N 80.2W AT 07/0300Z
AT 07/0000Z CENTER WAS LOCATED NEAR 31.8N 80.5W
FORECAST VALID 07/1200Z 32.0N 79.6W
MAX WIND 40 KT...GUSTS 50 KT.
34 KT...160NE 160SE 30SW 0NW.
FORECAST VALID 08/0000Z 32.6N 79.5W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...130NE 150SE 30SW 30NW.
FORECAST VALID 08/1200Z 33.4N 79.7W...INLAND
MAX WIND 45 KT...GUSTS 55 KT.
34 KT...100NE 130SE 50SW 0NW.
FORECAST VALID 09/0000Z 34.7N 79.9W...INLAND
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 0NE 110SE 0SW 0NW.
FORECAST VALID 09/1200Z 36.9N 79.4W...INLAND
MAX WIND 30 KT...GUSTS 40 KT.
FORECAST VALID 10/0000Z 39.9N 77.2W...POST-TROP/REMNT LOW
MAX WIND 30 KT...GUSTS 40 KT.
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 125 NM
ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
OUTLOOK VALID 11/0000Z 47.1N 69.5W...POST-TROP/EXTRATROP
MAX WIND 30 KT...GUSTS 40 KT.
OUTLOOK VALID 12/0000Z 51.5N 61.0W...POST-TROP/EXTRATROP
MAX WIND 30 KT...GUSTS 40 KT.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 31.8N 80.2W
INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 07/0600Z
NEXT ADVISORY AT 07/0900Z
$$
FORECASTER BEVEN
Categories: Weather
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Tropical Storm Debby Graphics
5-Day Uncertainty Track last updated Tue, 06 Aug 2024 23:38:31 GMT
Wind Speed Probabilities last updated Tue, 06 Aug 2024 21:23:02 GMT
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Atlantic Tropical Weather Outlook
000
ABNT20 KNHC 062333
TWOAT
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 PM EDT Tue Aug 6 2024
For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
Active Systems:
The National Hurricane Center is issuing advisories on Tropical
Storm Debby, located just offshore of the Georgia and South
Carolina coastline.
Western Caribbean Sea and Southwestern Gulf of Mexico:
Showers and thunderstorms associated with a tropical wave located
over the central Caribbean Sea remain limited. Any development of
this system should be slow to occur while it moves over the western
Caribbean Sea and then interacts with Central America through the
end of the week. The northern portion of this tropical wave could
reach the southwestern Gulf of Mexico over the weekend, where
environmental conditions appear marginally favorable for slow
development.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...low...20 percent.
$$
Forecaster Hagen/Beven
Categories: Weather
Summary for Tropical Storm Debby (AT4/AL042024)
...CENTER OF DEBBY NOW OFFSHORE OF THE COASTS OF GEORGIA AND SOUTH CAROLINA... ...MAJOR FLOOD THREAT FOR PORTIONS OF THE SOUTHEASTERN UNITED STATES THIS WEEK...
As of 8:00 PM EDT Tue Aug 6
the center of Debby was located near 31.8, -80.6
with movement ENE at 3 mph.
The minimum central pressure was 997 mb
with maximum sustained winds of about 40 mph.
Categories: Weather
Tropical Storm Debby Public Advisory Number 18A
Issued at 800 PM EDT Tue Aug 06 2024
000
WTNT34 KNHC 062333
TCPAT4
BULLETIN
Tropical Storm Debby Intermediate Advisory Number 18A
NWS National Hurricane Center Miami FL AL042024
800 PM EDT Tue Aug 06 2024
...CENTER OF DEBBY NOW OFFSHORE OF THE COASTS OF GEORGIA AND SOUTH
CAROLINA...
...MAJOR FLOOD THREAT FOR PORTIONS OF THE SOUTHEASTERN UNITED
STATES THIS WEEK...
SUMMARY OF 800 PM EDT...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...31.8N 80.6W
ABOUT 30 MI...50 KM SE OF SAVANNAH GEORGIA
ABOUT 85 MI...135 KM SSW OF CHARLESTON SOUTH CAROLINA
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...ENE OR 75 DEGREES AT 3 MPH...6 KM/H
MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
None.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Storm Surge Watch is in effect for...
* North of South Santee River, South Carolina to Cape Fear, North
Carolina
A Tropical Storm Warning is in effect for...
* Altamaha Sound, Georgia to Surf City, North Carolina
A Tropical Storm Watch is in effect for...
* North of Surf City, North Carolina to Beaufort Inlet, North
Carolina
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 during the next 48 hours.
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.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, generally within 48 hours.
Interests elsewhere along the southeastern coast of the United
States should monitor the progress of this system. Additional
watches or warnings may be required tonight or Wednesday.
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 800 PM EDT (0000 UTC), the center of Tropical Storm Debby was
located near latitude 31.8 North, longitude 80.6 West. Debby is
moving toward the east-northeast near 3 mph (6 km/h). A slow motion
toward the east and then north is expected through Thursday night.
On the forecast track, the center of Debby is expected to slowly
move away from the coast of Georgia and South Carolina tonight,
continue to drift offshore through early Thursday, and then
move inland over South Carolina on Thursday morning.
Maximum sustained winds are near 40 mph (65 km/h) with higher
gusts. Some strengthening is forecast on Wednesday while Debby
drifts offshore.
Tropical-storm-force winds extend outward up to 205 miles (335 km)
from the center.
The estimated minimum central pressure based on surface
observations is 997 mb (29.44 inches).
HAZARDS AFFECTING LAND
----------------------
Key messages for Debby can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC.
WIND: Tropical storm conditions are expected over portions of the
tropical storm warning area along the Georgia coast for the next
few hours. Tropical storm conditions are expected to continue along
the coast of South Carolina within the tropical storm warning area
through Thursday night. Tropical storm conditions are expected
within the tropical storm warning area in North Carolina beginning
early Wednesday. Tropical Storm conditions are possible within the
Tropical Storm Watch area in North Carolina beginning Wednesday.
STORM SURGE: The combination of storm surge and 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...
South Santee River, SC to Cape Fear, NC...2-4 ft
For a complete depiction of areas at risk of storm surge inundation,
please see the National Weather Service Peak Storm Surge Graphic,
available at hurricanes.gov/graphics_at4.shtml?peakSurge.
RAINFALL: Debby is expected to produce potentially historic rainfall
totals of 10 to 20 inches, with maximum amounts of 25 inches,
bringing areas of catastrophic flooding across portions of the
eastern half of South Carolina, and southeast North Carolina through
Friday.
From central South Carolina to the Update of South Carolina,
northward into Southwest Virginia, portions of the Mid-Atlantic
States, western and northern New York State into Northern New
England, 3 to 6 inches with local amounts to 8 inches, are expected
through Saturday. This rainfall will likely result in areas of
considerable flash and urban flooding, with river flooding possible.
An additional scattered 1 to 3 inches of rainfall is possible across
southeast Georgia through tonight, which may aggravate any ongoing
flooding conditions across that vicinity.
For a complete depiction of forecast rainfall and flash flooding
associated with Debby, please see the National Weather Service
Storm Total Rainfall Graphic, available at
hurricanes.gov/graphics_at4.shtml?rainqpf and the Flash Flood Risk
graphic at hurricanes.gov/graphics_at4.shtml?ero. For a list of
rainfall observations (and wind reports) associated this storm, see
the companion storm summary at WBCSCCNS4 with the WMO header ACUS44
KWBC or at the following link:
www.wpc.ncep.noaa.gov/discussions/nfdscc4.html.
TORNADOES: A few tornadoes are possible over portions of coastal
South Carolina and North Carolina this afternoon through Wednesday
morning.
SURF: Large swells will continue to affect the Southeast U.S.
coast through the end of the week. These conditions are likely to
cause life-threatening surf and rip current conditions. Please
consult products from your local weather office.
NEXT ADVISORY
-------------
Next complete advisory at 1100 PM EDT.
$$
Forecaster Beven
Categories: Weather