EPAC: GIL - Remanants
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Re: EPAC: GIL - Tropical Depression
and it's gone
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The posts in this forum are NOT official forecasts and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or STORM2K. For official information, please refer to products from the NHC and NWS.
Some Californian who codes things and tracks weather.
Kay '22, Hilary '23
Re: EPAC: GIL - Tropical Depression
LOL!
Tropical Depression Gil Discussion Number 6
NWS National Hurricane Center Miami FL EP082019
200 PM PDT Sun Aug 04 2019
Gil has been devoid of deep convection for about 9 hours now, and if
convection does return soon, then the system will be declared a
post-tropical remnant low on the next advisory. The initial
intensity of 25 kt is based on a Dvorak T-number of T1.5/25 kt from
TAFB and a 25-kt surface wind vector in a recent 1835Z ASCAT-B
scatterometer edge pass that caught the northwestern portion of the
circulation. Continued weakening is expected after Gil's
post-tropical transistion, and the system will likely dissipate by
late Monday.
The initial motion estimate remains 270/09 kt. Gil is embedded
within the easterly trade wind flow, and the cyclone is forecast to
maintain a general westward motion until dissipation occurs in 36
hours or so. The official track forecast is just an extension of the
previous advisory track and lies close to the consensus model TVCE.
FORECAST POSITIONS AND MAX WINDS
INIT 04/2100Z 15.0N 126.3W 25 KT 30 MPH
12H 05/0600Z 15.0N 127.8W 20 KT 25 MPH...POST-TROP/REMNT LOW
24H 05/1800Z 15.0N 129.9W 20 KT 25 MPH...POST-TROP/REMNT LOW
36H 06/0600Z...DISSIPATED
Tropical Depression Gil Discussion Number 6
NWS National Hurricane Center Miami FL EP082019
200 PM PDT Sun Aug 04 2019
Gil has been devoid of deep convection for about 9 hours now, and if
convection does return soon, then the system will be declared a
post-tropical remnant low on the next advisory. The initial
intensity of 25 kt is based on a Dvorak T-number of T1.5/25 kt from
TAFB and a 25-kt surface wind vector in a recent 1835Z ASCAT-B
scatterometer edge pass that caught the northwestern portion of the
circulation. Continued weakening is expected after Gil's
post-tropical transistion, and the system will likely dissipate by
late Monday.
The initial motion estimate remains 270/09 kt. Gil is embedded
within the easterly trade wind flow, and the cyclone is forecast to
maintain a general westward motion until dissipation occurs in 36
hours or so. The official track forecast is just an extension of the
previous advisory track and lies close to the consensus model TVCE.
FORECAST POSITIONS AND MAX WINDS
INIT 04/2100Z 15.0N 126.3W 25 KT 30 MPH
12H 05/0600Z 15.0N 127.8W 20 KT 25 MPH...POST-TROP/REMNT LOW
24H 05/1800Z 15.0N 129.9W 20 KT 25 MPH...POST-TROP/REMNT LOW
36H 06/0600Z...DISSIPATED
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Re: EPAC: GIL - Remanants
Quantity over quality.

Post-Tropical Cyclone Gil Discussion Number 7
NWS National Hurricane Center Miami FL EP082019
800 PM PDT Sun Aug 04 2019
Gil has lacked significant organized deep convection for more than
12 hours. Therefore, the depression has been downgraded to a
post-tropical remnant low. Although the system may still produce
some sporadic, nonpersistent convection into early Monday, dry
and stable air along with strong northwesterly shear will likely
prevent any appreciable convection from developing over the next
couple of days. This should cause the remnant low to weaken and then
open into a trough within the next 24-36 hours.
The initial motion estimate is 270/10 kt. The remnant low is
expected to move westward tonight then west-southwestward on Monday,
steered by the low-level environmental flow. This
west-southwestward motion should continue until the low dissipates.
This is the last advisory on this system. For additional information
on the remnant low please see High Seas Forecasts issued by the
National Weather Service, under AWIPS header NFDHSFEPI, WMO header
FZPN02 KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php
FORECAST POSITIONS AND MAX WINDS
INIT 05/0300Z 15.1N 127.3W 25 KT 30 MPH...POST-TROPICAL
12H 05/1200Z 15.0N 128.8W 20 KT 25 MPH...POST-TROP/REMNT LOW
24H 06/0000Z 14.6N 130.8W 20 KT 25 MPH...POST-TROP/REMNT LOW
36H 06/1200Z...DISSIPATED
$$
Forecaster Latto/Pasch
NWS National Hurricane Center Miami FL EP082019
800 PM PDT Sun Aug 04 2019
Gil has lacked significant organized deep convection for more than
12 hours. Therefore, the depression has been downgraded to a
post-tropical remnant low. Although the system may still produce
some sporadic, nonpersistent convection into early Monday, dry
and stable air along with strong northwesterly shear will likely
prevent any appreciable convection from developing over the next
couple of days. This should cause the remnant low to weaken and then
open into a trough within the next 24-36 hours.
The initial motion estimate is 270/10 kt. The remnant low is
expected to move westward tonight then west-southwestward on Monday,
steered by the low-level environmental flow. This
west-southwestward motion should continue until the low dissipates.
This is the last advisory on this system. For additional information
on the remnant low please see High Seas Forecasts issued by the
National Weather Service, under AWIPS header NFDHSFEPI, WMO header
FZPN02 KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php
FORECAST POSITIONS AND MAX WINDS
INIT 05/0300Z 15.1N 127.3W 25 KT 30 MPH...POST-TROPICAL
12H 05/1200Z 15.0N 128.8W 20 KT 25 MPH...POST-TROP/REMNT LOW
24H 06/0000Z 14.6N 130.8W 20 KT 25 MPH...POST-TROP/REMNT LOW
36H 06/1200Z...DISSIPATED
$$
Forecaster Latto/Pasch
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