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Latest Atlantic Hurricane Tracks


Tropical Storm FIONA Tracking Data
Date: 17-23 AUG 2016
Tropical Storm FIONA
ADV  LAT    LON      TIME     WIND  PR  STAT
  1  12.60  -34.10 08/17/03Z    -     - TROPICAL DEPRESSION
  2  13.20  -35.20 08/17/09Z   30  1007 TROPICAL DEPRESSION
  3  14.00  -36.40 08/17/15Z    -     - TROPICAL DEPRESSION
  4  15.10  -37.80 08/17/21Z    -     - TROPICAL DEPRESSION
  5  15.50  -39.00 08/18/03Z    -     - TROPICAL DEPRESSION
  6  16.20  -40.30 08/18/09Z    -     - TROPICAL DEPRESSION
  7  17.00  -41.40 08/18/18Z   45     - TROPICAL STORM
  8  17.00  -41.30 08/18/21Z   40  1006 TROPICAL STORM
  9  17.10  -41.80 08/19/03Z   40  1006 TROPICAL STORM
 10  17.60  -42.70 08/19/09Z   40  1006 TROPICAL STORM
 11  17.80  -43.50 08/19/15Z    -     - TROPICAL DEPRESSION
 12  18.10  -44.40 08/19/21Z    -     - TROPICAL DEPRESSION
 13  18.70  -45.50 08/20/03Z    -     - TROPICAL DEPRESSION
 14  19.20  -46.70 08/20/09Z    -     - TROPICAL DEPRESSION
 15  20.30  -47.80 08/20/15Z    -     - TROPICAL DEPRESSION
 16  21.20  -49.10 08/20/21Z    -     - TROPICAL DEPRESSION
 17  21.70  -50.10 08/21/03Z    -     - TROPICAL DEPRESSION
 18  22.20  -51.70 08/21/09Z   40  1006 TROPICAL STORM
 19  22.90  -53.30 08/21/15Z    -     - TROPICAL DEPRESSION
 20  23.40  -54.90 08/21/21Z    -     - TROPICAL DEPRESSION
 21  23.80  -56.60 08/22/03Z    -     - TROPICAL DEPRESSION
 22  24.40  -58.40 08/22/09Z    -     - TROPICAL DEPRESSION
 23  24.60  -59.70 08/22/15Z    -     - TROPICAL DEPRESSION
 24  25.10  -61.30 08/22/21Z   30  1009 TROPICAL DEPRESSION
 25  25.50  -62.30 08/23/03Z    -     - TROPICAL DEPRESSION
 26  25.80  -63.40 08/23/09Z    -     - TROPICAL DEPRESSION
+12  26.20  -65.00 08/23/18Z   30     - TROPICAL DEPRESSION
+24  27.10  -67.00 08/24/06Z   25     - TROPICAL DEPRESSION
+36  28.10  -68.60 08/24/18Z   25     - TROPICAL DEPRESSION
+48  28.90  -69.50 08/25/06Z   25     - TROPICAL DEPRESSION
+72  30.00  -70.80 08/26/06Z   25     - TROPICAL DEPRESSION
+96  30.60  -71.60 08/27/06Z   25     - TROPICAL DEPRESSION

Hurricane-1 GASTON Tracking Data
Date: 22-25 AUG 2016
Hurricane-1 GASTON
ADV  LAT    LON      TIME     WIND  PR  STAT
  1  12.10  -29.00 08/22/21Z    -     - TROPICAL DEPRESSION
  2  12.60  -30.70 08/23/03Z   35  1005 TROPICAL STORM
  3  13.20  -32.40 08/23/09Z    -     - TROPICAL DEPRESSION
  4  13.80  -34.60 08/23/15Z    -     - TROPICAL DEPRESSION
  5  14.20  -35.80 08/23/21Z    -     - TROPICAL DEPRESSION
  6  14.70  -37.10 08/24/03Z    -     - TROPICAL DEPRESSION
  7  14.90  -38.60 08/24/09Z    -     - TROPICAL DEPRESSION
  8  16.10  -39.40 08/24/15Z    -     - TROPICAL DEPRESSION
  9  17.40  -40.60 08/24/21Z    -     - TROPICAL DEPRESSION
 10  18.60  -42.10 08/25/03Z   60   990 TROPICAL STORM
 11  19.50  -43.30 08/25/09Z    -     - TROPICAL DEPRESSION
 12  20.40  -44.40 08/25/15Z    -     - TROPICAL DEPRESSION
+12  22.10  -45.90 08/26/00Z   55     - TROPICAL STORM
+24  24.40  -48.20 08/26/12Z   55     - TROPICAL STORM
+36  26.00  -50.90 08/27/00Z   60     - TROPICAL STORM
+48  27.10  -53.10 08/27/12Z   65     - HURRICANE-1
+72  29.40  -56.60 08/28/12Z   80     - HURRICANE-1
+96  31.00  -58.00 08/29/12Z   90     - HURRICANE-2
+120  33.00  -57.00 08/30/12Z   90     - HURRICANE-2


Type   Pressure (mb) Winds (mph) Winds (knots) Surge (Feet)
Tropical Depression   ----- < 39 < 34 -----
Tropical Storm   ----- 39 - 73 34 - 63 -----
Hurricane 1   > 980 74 - 95 64 - 82 4 - 5
Hurricane 2   965 - 980 96 - 110 83 - 95 6 - 8
Hurricane 3   945 - 965 111 - 130 96 - 112 9 - 12
Hurricane 4   920 - 945 131 - 155 113 - 134 13 - 18
Hurricane 5   < 920 > 155 > 135 > 18

Latest Tropical Advisories from
The National Hurricane Center

Tropical Storm FIONA Advisory



359 
WTNT21 KNHC 231432
TCMAT1

POST-TROPICAL CYCLONE FIONA FORECAST/ADVISORY NUMBER  27
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL062016
1500 UTC TUE AUG 23 2016

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

POST-TROPICAL CYCLONE CENTER LOCATED NEAR 26.1N  64.5W AT 23/1500Z
POSITION ACCURATE WITHIN  15 NM

PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 290 DEGREES AT  10 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1014 MB
MAX SUSTAINED WINDS  25 KT WITH GUSTS TO  35 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 26.1N  64.5W AT 23/1500Z
AT 23/1200Z CENTER WAS LOCATED NEAR 25.9N  64.0W

FORECAST VALID 24/0000Z 26.6N  66.0W...POST-TROP/REMNT LOW
MAX WIND  25 KT...GUSTS  35 KT.

FORECAST VALID 24/1200Z 27.5N  67.8W...POST-TROP/REMNT LOW
MAX WIND  20 KT...GUSTS  30 KT.

FORECAST VALID 25/0000Z 28.4N  69.1W...POST-TROP/REMNT LOW
MAX WIND  20 KT...GUSTS  30 KT.

FORECAST VALID 25/1200Z 29.0N  69.9W...POST-TROP/REMNT LOW
MAX WIND  20 KT...GUSTS  30 KT.

FORECAST VALID 26/1200Z 29.5N  71.5W...POST-TROP/REMNT LOW
MAX WIND  20 KT...GUSTS  30 KT.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY

OUTLOOK VALID 27/1200Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 26.1N  64.5W

THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON THIS SYSTEM. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE
FOUND IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER
SERVICE...UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC.


$$
FORECASTER BLAKE




021 
WTNT41 KNHC 231433
TCDAT1

POST-TROPICAL CYCLONE FIONA DISCUSSION NUMBER  27
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL062016
1100 AM AST TUE AUG 23 2016

Satellite images indicate that Fiona has lost even more
organization this morning with only a weak, elongated circulation
and no organized deep convection.  Thus, Fiona no longer meets the
requirements of a tropical cyclone and this is the last advisory.
The initial wind speed is reduced to 25 kt in accordance with the
latest Dvorak estimates.  While wind shear is forecast to decrease,
the low's structure has lost so much organization that it is not
likely to take advantage of the more conducive conditions.  In
addition, dry mid-level air near the circulation is likely to limit
any organized convection. Thus regeneration is not expected at this
time.  The low should move northwestward into a break in the
subtropical ridge, then westward as the ridge restrengthens.

FORECAST POSITIONS AND MAX WINDS

INIT  23/1500Z 26.1N  64.5W   25 KT  30 MPH...POST-TROP/REMNT LOW
 12H  24/0000Z 26.6N  66.0W   25 KT  30 MPH...POST-TROP/REMNT LOW
 24H  24/1200Z 27.5N  67.8W   20 KT  25 MPH...POST-TROP/REMNT LOW
 36H  25/0000Z 28.4N  69.1W   20 KT  25 MPH...POST-TROP/REMNT LOW
 48H  25/1200Z 29.0N  69.9W   20 KT  25 MPH...POST-TROP/REMNT LOW
 72H  26/1200Z 29.5N  71.5W   20 KT  25 MPH...POST-TROP/REMNT LOW
 96H  27/1200Z...DISSIPATED

$$
Forecaster Blake



360 
WTNT31 KNHC 231432
TCPAT1

BULLETIN
POST-TROPICAL CYCLONE FIONA ADVISORY NUMBER  27
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL062016
1100 AM AST TUE AUG 23 2016

...FIONA IS FINISHED, THIS IS THE LAST ADVISORY...


SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...26.1N 64.5W
ABOUT 430 MI...690 KM S OF BERMUDA
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...WNW OR 290 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...1014 MB...29.95 INCHES


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


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 1100 AM AST (1500 UTC), the center of Post-Tropical Cyclone Fiona
was located near latitude 26.1 North, longitude 64.5 West. The
post-tropical cyclone is moving toward the west-northwest near 12
mph (19 km/h), and a gradual turn toward the northwest with a
decrease in forward speed is expected over the next 48 hours.

Maximum sustained winds have decreased to near 30 mph (45 km/h) with
higher gusts.  The low should gradually weaken over the next
couple of days.

The estimated minimum central pressure is 1014 mb (29.95 inches).


HAZARDS AFFECTING LAND
----------------------
None.


NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane
Center on this system. Additional information on this system can be
found in High Seas Forecasts issued by the National Weather Service,
under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and available
on the Web at http://www.opc.ncep.noaa.gov/shtml/NFDHSFAT1.shtml.

$$
Forecaster Blake


Hurricane-1 GASTON Advisory



612 
WTNT22 KNHC 251437
TCMAT2
 
TROPICAL STORM GASTON FORECAST/ADVISORY NUMBER  12
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL072016
1500 UTC THU AUG 25 2016
 
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
 
TROPICAL STORM CENTER LOCATED NEAR 20.4N  44.4W AT 25/1500Z
POSITION ACCURATE WITHIN  25 NM
 
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 315 DEGREES AT  15 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  992 MB
MAX SUSTAINED WINDS  60 KT WITH GUSTS TO  75 KT.
50 KT....... 70NE  30SE   0SW  60NW.
34 KT.......100NE  70SE  30SW 100NW.
12 FT SEAS..150NE  90SE  90SW 120NW.
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 20.4N  44.4W AT 25/1500Z
AT 25/1200Z CENTER WAS LOCATED NEAR 19.8N  43.9W
 
FORECAST VALID 26/0000Z 22.1N  45.9W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 60NE  30SE   0SW  50NW.
34 KT...120NE  90SE  30SW 110NW.
 
FORECAST VALID 26/1200Z 24.4N  48.2W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 60NE  30SE   0SW  40NW.
34 KT...130NE  90SE  40SW 110NW.
 
FORECAST VALID 27/0000Z 26.0N  50.9W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 60NE  30SE  20SW  50NW.
34 KT...130NE  90SE  50SW 110NW.
 
FORECAST VALID 27/1200Z 27.1N  53.1W
MAX WIND  65 KT...GUSTS  80 KT.
50 KT... 60NE  40SE  20SW  50NW.
34 KT...130NE  90SE  60SW 110NW.
 
FORECAST VALID 28/1200Z 29.4N  56.6W
MAX WIND  80 KT...GUSTS 100 KT.
50 KT... 70NE  50SE  40SW  50NW.
34 KT...130NE 120SE  80SW 110NW.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
 
OUTLOOK VALID 29/1200Z 31.0N  58.0W
MAX WIND  90 KT...GUSTS 110 KT.
 
OUTLOOK VALID 30/1200Z 33.0N  57.0W
MAX WIND  90 KT...GUSTS 110 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.4N  44.4W
 
NEXT ADVISORY AT 25/2100Z
 
$$
FORECASTER BRENNAN
 
 


544 
WTNT42 KNHC 251440
TCDAT2

TROPICAL STORM GASTON DISCUSSION NUMBER  12
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL072016
1100 AM AST THU AUG 25 2016

The satellite presentation of Gaston has degraded some since the
previous advisory, with deep convection bursting northeast of the
center due to about 25 kt of southwesterly shear as analyzed by
UW-CIMSS.  An ASCAT-B pass from 1212 UTC was helpful in locating the
center and showed peak winds of around 55 kt, which support an
intensity of 60 kt for this advisory, a little above the latest
Dvorak estimates of T3.5/55 kt.  The strong shear is forecast to
continue for the next 24 hours until Gaston moves poleward of an
upper-level low currently located to its west.  Given the shear and
SSTs around 27-28C, little change in intensity, or perhaps some
slight weakening, is expected in the first 24 hours.  After that
time, the shear decreases and Gaston moves over SSTs of 29-30C,
which should allow for strengthening through the rest of the
forecast period.  The NHC intensity forecast is a little higher than
the previous one later in the period and is close to the SHIPS model
and the IVCN intensity consensus.

The initial motion estimate is 315/15.  Gaston should continue
moving quickly northwestward for the next 24 to 36 hours around a
mid-level ridge centered to its northeast.  Ridging then builds
westward to the north of the tropical cyclone, leading to a decrease
in forward speed and a turn toward the west-northwest in 48 hours.
Late in the period, Gaston will turn poleward into a weakness along
60W and then begin to recurve into the mid-latitude westerlies.  The
track model guidance agrees on this general scenario, however, there
are some differences in the timing and sharpness of recurvature.
The GFS, GFS ensemble mean, and UKMET are on the left side of the
guidance envelope with a broader turn, while the ECMWF, HWRF, and
GFDL show a sharper turn on the right side of the guidance.  Given
the uncertainty, the NHC forecast remains near the previous one in
the middle of the guidance envelope, and is close to the TVCN
multi-model consensus.

The initial and forecast 34-kt and 50-kt wind radii were adjusted
based on data from the ASCAT pass.

FORECAST POSITIONS AND MAX WINDS

INIT  25/1500Z 20.4N  44.4W   60 KT  70 MPH
 12H  26/0000Z 22.1N  45.9W   55 KT  65 MPH
 24H  26/1200Z 24.4N  48.2W   55 KT  65 MPH
 36H  27/0000Z 26.0N  50.9W   60 KT  70 MPH
 48H  27/1200Z 27.1N  53.1W   65 KT  75 MPH
 72H  28/1200Z 29.4N  56.6W   80 KT  90 MPH
 96H  29/1200Z 31.0N  58.0W   90 KT 105 MPH
120H  30/1200Z 33.0N  57.0W   90 KT 105 MPH

$$
Forecaster Brennan



633 
WTNT32 KNHC 251438
TCPAT2

BULLETIN
TROPICAL STORM GASTON ADVISORY NUMBER  12
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL072016
1100 AM AST THU AUG 25 2016

...GASTON WEAKENS TO A TROPICAL STORM OVER THE CENTRAL ATLANTIC...


SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...20.4N 44.4W
ABOUT 1160 MI...1865 KM ENE OF THE LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 17 MPH...28 KM/H
MINIMUM CENTRAL PRESSURE...992 MB...29.30 INCHES


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


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 1100 AM AST (1500 UTC), the center of Tropical Storm Gaston was
located near latitude 20.4 North, longitude 44.4 West.  Gaston is
moving toward the northwest near 17 mph (28 km/h), and this general
motion is expected to continue through Friday.  A turn toward the
west-northwest and a decrease in forward speed are expected on
Saturday.

Maximum sustained winds have decreased to near 70 mph (110 km/h)
with higher gusts, and some additional weakening is possible today.
However, some re-strengthening is expected to begin Friday night,
and Gaston could become a hurricane again on Saturday.

Tropical-storm-force winds extend outward up to 115 miles (185 km)
from the center.

The estimated minimum central pressure is 992 mb (29.30 inches).


HAZARDS AFFECTING LAND
----------------------
None.


NEXT ADVISORY
-------------
Next complete advisory at 500 PM AST.

$$
Forecaster Brennan


Last updated Thu Aug 25 10:16:05 2016