Weather

Atlantic Tropical Weather Outlook

August 12, 2020

000

ABNT20 KNHC 121144

TWOAT

Tropical Weather Outlook

NWS National Hurricane Center Miami FL

800 AM EDT Wed Aug 12 2020

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

The National Hurricane Center is issuing advisories on Tropical

Depression Eleven, located over the central tropical Atlantic Ocean

about 1100 miles east of the Lesser Antilles.

Tropical cyclone formation is not expected for the next five days.

&&

Public Advisories on Tropical Depression Eleven are issued under

WMO header WTNT31 KNHC and under AWIPS header MIATCPAT1.

Forecast/Advisories on Tropical Depression Eleven are issued under

WMO header WTNT21 KNHC and under AWIPS header MIATCMAT1.

$$

Forecaster Beven

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Tropical Depression Eleven Forecast Discussion Number 3

August 12, 2020

Issued at 500 AM AST Wed Aug 12 2020

000
WTNT41 KNHC 120900
TCDAT1

Tropical Depression Eleven Discussion Number

3
NWS National Hurricane Center Miami FL

AL112020
500 AM AST Wed Aug 12 2020

After an earlier burst of deep convection near the center and in
the western semicircle of the circulation, overall thunderstorm
activity has decreased somewhat. This is likely due to the
entrainment of mid-/upper-level dry air as noted in GOES-16
high-resolution mid- and upper-level water vapor imagery, in
conjunction with some modest southeasterly vertical wind shear.
The latest subjective and objective Dvorak satellite
classifications from TAFB/SAB and UW-CIMSS ADT of 30 kt and 33 kt,
respectively, support maintaining an initial intensity of 30 kt.

The depression continues moving a little...

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Tropical Depression Eleven Graphics

August 12, 2020

5-Day Uncertainty Track last updated Wed, 12 Aug 2020 08:50:55 GMT



Wind Speed Probabilities last updated Wed, 12 Aug 2020 08:50:55 GMT

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Tropical Depression Eleven Forecast Advisory Number 3

August 12, 2020

Issued at 0900 UTC WED AUG 12 2020

000
WTNT21 KNHC 120848
TCMAT1

TROPICAL DEPRESSION ELEVEN FORECAST/ADVISORY NUMBER

3
NWS NATIONAL HURRICANE CENTER MIAMI FL

AL112020
0900 UTC WED AUG 12 2020

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL DEPRESSION CENTER LOCATED NEAR 12.2N 42.9W AT 12/0900Z
POSITION ACCURATE WITHIN 25 NM

PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT 13 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB
MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT.
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 12.2N 42.9W AT 12/0900Z
AT 12/0600Z CENTER WAS LOCATED NEAR 12.1N 42.3W

FORECAST VALID 12/1800Z 12.6N 44.8W
MAX WIND 35 KT...GUSTS 45 KT...

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Tropical Depression Eleven Public Advisory Number 3

August 12, 2020

Issued at 500 AM AST Wed Aug 12 2020

000
WTNT31 KNHC 120848
TCPAT1

BULLETIN
Tropical Depression Eleven Advisory Number

3
NWS National Hurricane Center Miami FL

AL112020
500 AM AST Wed Aug 12 2020

...DEPRESSION EXPECTED TO BECOME A TROPICAL STORM LATER TODAY...

SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...12.2N 42.9W
ABOUT 1405 MI...2265 KM ESE OF THE NORTHERN LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...W OR 280 DEGREES AT 15 MPH...24 KM/H
MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES

WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.

DISCUSSION AND OUTLOOK
----------------------
At 500 AM AST (0900 UTC), the center of Tropical Depression Eleve...

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Summary for Tropical Depression Eleven (AT1/AL112020)

August 12, 2020

...DEPRESSION EXPECTED TO BECOME A TROPICAL STORM LATER TODAY...
As of 5:00 AM AST Wed Aug 12
the center of Eleven was located near 12.2, -42.9
with movement W at 15 mph.
The minimum central pressure was 1008 mb
with maximum sustained winds of about 35 mph.

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Atlantic Tropical Weather Outlook

August 12, 2020

000

ABNT20 KNHC 120504

TWOAT

Tropical Weather Outlook

NWS National Hurricane Center Miami FL

200 AM EDT Wed Aug 12 2020

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

The National Hurricane Center is issuing advisories on Tropical

Depression Eleven, located over the central tropical Atlantic Ocean

more than 1200 miles east of the Lesser Antilles.

Tropical cyclone formation is not expected for the next five days.

&&

Public Advisories on Tropical Depression Eleven are issued under

WMO header WTNT31 KNHC and under AWIPS header MIATCPAT1.

Forecast/Advisories on Tropical Depression Eleven are issued under

WMO header WTNT21 KNHC and under AWIPS header MIATCMAT1.

$$

Forecaster Stewart

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Atlantic Tropical Weather Outlook

August 12, 2020

680

ABNT20 KNHC 120504

TWOAT

Tropical Weather Outlook

NWS National Hurricane Center Miami FL

200 AM EDT Wed Aug 12 2020

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

The National Hurricane Center is issuing advisories on Tropical

Depression Eleven, located over the central tropical Atlantic Ocean

more than 1200 miles east of the Lesser Antilles.

Tropical cyclone formation is not expected for the next five days.

&&

Public Advisories on Tropical Depression Eleven are issued under

WMO header WTNT31 KNHC and under AWIPS header MIATCPAT1.

Forecast/Advisories on Tropical Depression Eleven are issued under

WMO header WTNT21 KNHC and under AWIPS header MIATCMAT1.

$$

Forecaster Stewart

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Tropical Depression Eleven Forecast Discussion Number 2

August 11, 2020

Issued at 1100 PM AST Tue Aug 11 2020

913
WTNT41 KNHC 120233
TCDAT1

Tropical Depression Eleven Discussion Number

2
NWS National Hurricane Center Miami FL

AL112020
1100 PM AST Tue Aug 11 2020

After weakening in the early evening hours, deep convection has
returned to the western semicircle of the tropical cyclone. While
this is quite a strong burst, it appears that the convective
pattern is indicative of the shear it is encountering, rather than
any strengthening. This is confirmed by ASCAT-B data from a few
hours ago, which supported maintaining an initial wind speed of 30
kt.

By this time tomorrow, the depression is forecast to become a
tropical storm due to decreasing vertical wind shear, and this
environmental change should also keep some of the surrounding
mid-level d...

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Tropical Depression Eleven Graphics

August 11, 2020

5-Day Uncertainty Track last updated Wed, 12 Aug 2020 02:33:29 GMT



Wind Speed Probabilities last updated Wed, 12 Aug 2020 02:33:29 GMT

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Tropical Depression Eleven Public Advisory Number 2

August 11, 2020

Issued at 1100 PM AST Tue Aug 11 2020

000
WTNT31 KNHC 120232
TCPAT1

BULLETIN
Tropical Depression Eleven Advisory Number

2
NWS National Hurricane Center Miami FL

AL112020
1100 PM AST Tue Aug 11 2020

...DEPRESSION FORECAST TO GRADUALLY STRENGTHEN...

SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...12.0N 41.5W
ABOUT 1205 MI...1940 KM W OF THE CABO VERDE ISLANDS
ABOUT 1350 MI...2170 KM E OF THE LESSER ANTILLES
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...W OR 280 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES

WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.

DISCUSSION AND OUTLOOK
----------------------
At 1100 PM AST (0300 UTC), the cent...

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Summary for Tropical Depression Eleven (AT1/AL112020)

August 11, 2020

...DEPRESSION FORECAST TO GRADUALLY STRENGTHEN...
As of 11:00 PM AST Tue Aug 11
the center of Eleven was located near 12.0, -41.5
with movement W at 14 mph.
The minimum central pressure was 1008 mb
with maximum sustained winds of about 35 mph.

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Tropical Depression Eleven Forecast Advisory Number 2

August 11, 2020

Issued at 0300 UTC WED AUG 12 2020

981
WTNT21 KNHC 120231
TCMAT1

TROPICAL DEPRESSION ELEVEN FORECAST/ADVISORY NUMBER

2
NWS NATIONAL HURRICANE CENTER MIAMI FL

AL112020
0300 UTC WED AUG 12 2020

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL DEPRESSION CENTER LOCATED NEAR 12.0N 41.5W AT 12/0300Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT 12 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB
MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT.
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 12.0N 41.5W AT 12/0300Z
AT 12/0000Z CENTER WAS LOCATED NEAR 11.9N 40.9W

FORECAST VALID 12/1200Z 12.3N 43.4W
MAX WIND 30 KT...GUSTS 40 K...

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Tropical Depression Eleven Public Advisory Number 2

August 11, 2020

Issued at 1100 PM AST Tue Aug 11 2020

ZCZC MIATCPAT1 ALL
TTAA00 KNHC DDHHMM

BULLETIN
Tropical Depression Eleven Advisory Number

2
NWS National Hurricane Center Miami FL

AL112020
1100 PM AST Tue Aug 11 2020

...DEPRESSION FORECAST TO GRADUALLY STRENGTHEN...

SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...12.0N 41.5W
ABOUT 1205 MI...1940 KM W OF THE CABO VERDE ISLANDS
ABOUT 1350 MI...2170 KM E OF THE LESSER ANTILLES
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...W OR 280 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES

WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.

DISCUSSION AND OUTLOOK
----------------------
At 1100 PM AST (0300 UTC), ...

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Summary for Tropical Depression Eleven (AT1/AL112020)

August 11, 2020

...DEPRESSION FORECAST TO GRADUALLY STRENGTHEN...
As of 11:00 PM AST Tue Aug 11
the center of Eleven was located near 12.0, -41.5
with movement W at 14 mph.
The minimum central pressure was 1008 mb
with maximum sustained winds of about 35 mph.

read more »

Atlantic Tropical Weather Outlook

August 11, 2020

000

ABNT20 KNHC 112328

TWOAT

Tropical Weather Outlook

NWS National Hurricane Center Miami FL

800 PM EDT Tue Aug 11 2020

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

The National Hurricane Center is issuing advisories on newly formed

Tropical Depression Eleven, located over the central tropical

Atlantic Ocean.

Tropical cyclone formation is not expected for the next five days.

&&

Public Advisories on Tropical Depression Eleven are issued under

WMO header WTNT31 KNHC and under AWIPS header MIATCPAT1.

Forecast/Advisories on Tropical Depression Eleven are issued under

WMO header WTNT21 KNHC and under AWIPS header MIATCMAT1.

$$

Forecaster Blake

read more »

Tropical Depression Eleven Graphics

August 11, 2020

5-Day Uncertainty Track last updated Tue, 11 Aug 2020 20:33:48 GMT



Wind Speed Probabilities last updated Tue, 11 Aug 2020 20:33:49 GMT

read more »

Tropical Depression Eleven Forecast Discussion Number 1

August 11, 2020

Issued at 500 PM AST Tue Aug 11 2020

000
WTNT41 KNHC 112032
TCDAT1

Tropical Depression Eleven Discussion Number

1
NWS National Hurricane Center Miami FL

AL112020
500 PM AST Tue Aug 11 2020

Visible satellite imagery and ASCAT-C data from earlier in the day
have shown that the area of low pressure NHC has been monitoring
over the tropical Atlantic has developed a less-elongated
circulation with a well-defined center. For the most part, deep
convection has persisted with the system since about this time
yesterday, save a brief period of warming cloud tops this morning.
The low now meets the criteria of a tropical cyclone, and
advisories have been initiated on Tropical Depression Eleven with
30-kt winds, in line with the latest Dvorak Current Intensity
numbers from TAFB and SAB.

The dep...

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Tropical Depression Eleven Forecast Advisory Number 1

August 11, 2020

Issued at 2100 UTC TUE AUG 11 2020

000
WTNT21 KNHC 112032
TCMAT1

TROPICAL DEPRESSION ELEVEN FORECAST/ADVISORY NUMBER

1
NWS NATIONAL HURRICANE CENTER MIAMI FL

AL112020
2100 UTC TUE AUG 11 2020

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

TROPICAL DEPRESSION CENTER LOCATED NEAR 11.7N 40.0W AT 11/2100Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT 14 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1007 MB
MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT.
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 11.7N 40.0W AT 11/2100Z
AT 11/1800Z CENTER WAS LOCATED NEAR 11.6N 39.6W

FORECAST VALID 12/0600Z 12.0N 42.1W
MAX WIND 30 KT...GUSTS 40 KT...

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Tropical Depression Eleven Public Advisory Number 1

August 11, 2020

Issued at 500 PM AST Tue Aug 11 2020

000
WTNT31 KNHC 112032
TCPAT1

BULLETIN
Tropical Depression Eleven Advisory Number

1
NWS National Hurricane Center Miami FL

AL112020
500 PM AST Tue Aug 11 2020

...NEW TROPICAL DEPRESSION FORMS OVER THE TROPICAL ATLANTIC OCEAN...

SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...11.7N 40.0W
ABOUT 1110 MI...1790 KM WSW OF THE CABO VERDE ISLANDS
ABOUT 1450 MI...2335 KM E OF THE LESSER ANTILLES
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...W OR 280 DEGREES AT 16 MPH...26 KM/H
MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES

WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.

DISCUSSION AND OUTLOOK
----------------------
At 500 PM AST (210...

read more »