EPAC: JOVA - Post-Tropical - Discussion

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cycloneye
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Re: EPAC: JOVA - Tropical storm - Discussion

#261 Postby cycloneye » Sat Sep 09, 2023 10:02 pm

Tropical Storm Jova Discussion Number 22
NWS National Hurricane Center Miami FL EP112023
800 PM PDT Sat Sep 09 2023

Jova is maintaining some deep convection near the center, and some
shallow convective banding features are still evident over the
southeastern quadrant of the circulation. Since the central
convection has still not decreased much, the current intensity is
held at 45 kt for this advisory. This is above the subjective
Dvorak estimates, but in general agreement with objective ADT values
from UW-CIMSS.

The cyclone continues on a northwestward heading with a motion of
about 315/8 kt, on the western periphery of a mid-level high
pressure area. As the system weakens further, it should be steered
more by the low-level trade wind flow, and turn toward the east and
east-southeast. The official track forecast lies roughly in the
middle of the track guidance suite.

It is a bit surprising the the system has been able to maintain
deep convection this evening. Since the storm will remain over
cooler waters of 23 deg C or lower, however, weakening is likely
and the system should degenerate into a remnant low by Monday.
This is similar to the previous NHC intensity forecast.

FORECAST POSITIONS AND MAX WINDS

INIT 10/0300Z 23.7N 126.5W 45 KT 50 MPH
12H 10/1200Z 24.3N 127.2W 35 KT 40 MPH
24H 11/0000Z 24.8N 128.1W 30 KT 35 MPH
36H 11/1200Z 24.9N 129.0W 25 KT 30 MPH...POST-TROP/REMNT LOW
48H 12/0000Z 24.6N 130.0W 25 KT 30 MPH...POST-TROP/REMNT LOW
60H 12/1200Z 23.9N 131.7W 25 KT 30 MPH...POST-TROP/REMNT LOW
72H 13/0000Z 23.3N 133.6W 25 KT 30 MPH...POST-TROP/REMNT LOW
96H 14/0000Z...DISSIPATED

$$
Forecaster Pasch
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Re: EPAC: JOVA - Tropical storm - Discussion

#262 Postby cycloneye » Sun Sep 10, 2023 4:00 am

Tropical Storm Jova Discussion Number 23
NWS National Hurricane Center Miami FL EP112023
200 AM PDT Sun Sep 10 2023

A shrinking area of fragmented convection is all that remains of
Jova's cloud pattern this morning. A 0525 UTC METOP-C scatterometer
pass revealed a couple of 35 kt winds in the northeast quadrant. In
the deference of undersampling, the initial intensity is lowered to
40 kt for this advisory.

A gradual spin down of Jova should continue through the period while
it remains over sub 23 degree Celsius SSTs. Consequently, Jova is
likely to degenerate into a remnant low by early Monday, or or as
soon as this evening, as suggested in the global model simulated
infrared guidance. No significant changes were made to the official
forecast and it's similar to the IVCN multi-model intensity
guidance.

Jova's initial motion is estimated to be northwestward or about
315/7 kt, on the southwestern periphery of a subtropical ridge
centered over the Baja California peninsula. As Jova degenerates to
a vertically shallow cyclone around the 24 hour period, it should
turn toward the west and west-southwest. The NHC forecast track is
basically an update of the previous advisory and is based on the
various consensus aids.


FORECAST POSITIONS AND MAX WINDS

INIT 10/0900Z 24.0N 126.9W 40 KT 45 MPH
12H 10/1800Z 24.5N 127.4W 35 KT 40 MPH
24H 11/0600Z 24.8N 128.1W 30 KT 35 MPH...POST-TROP/REMNT LOW
36H 11/1800Z 24.6N 129.1W 25 KT 30 MPH...POST-TROP/REMNT LOW
48H 12/0600Z 24.1N 130.4W 25 KT 30 MPH...POST-TROP/REMNT LOW
60H 12/1800Z 23.2N 132.3W 25 KT 30 MPH...POST-TROP/REMNT LOW
72H 13/0600Z 22.3N 134.5W 25 KT 30 MPH...POST-TROP/REMNT LOW
96H 14/0600Z...DISSIPATED

$$
Forecaster Roberts
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Re: EPAC: JOVA - Tropical storm - Discussion

#263 Postby DioBrando » Sun Sep 10, 2023 6:15 am

It's jova
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Re: EPAC: JOVA - Tropical storm - Discussion

#264 Postby Sciencerocks » Sun Sep 10, 2023 9:26 am

Image
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Re: EPAC: JOVA - Post-Tropical - Discussion

#265 Postby cycloneye » Sun Sep 10, 2023 3:40 pm

Bye but did great being a cat 5.

BULLETIN
Post-Tropical Cyclone Jova Advisory Number 25
NWS National Hurricane Center Miami FL EP112023
200 PM PDT Sun Sep 10 2023

...DANGEROUS SURF AND RIP CURRENT CONDITIONS CONTINUE ALONG THE
COASTS OF CALIFORNIA AND MEXICO...
...THIS IS THE LAST ADVISORY AS JOVA BECOMES A REMNANT LOW...


SUMMARY OF 200 PM PDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...24.8N 127.8W
ABOUT 1135 MI...1830 KM W OF THE SOUTHERN TIP OF BAJA CALIFORNIA
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 6 MPH...9 KM/H
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Re: EPAC: JOVA - Hurricane - Discussion

#266 Postby DioBrando » Thu Mar 07, 2024 11:29 am

bob rulz wrote:I would be surprised if the NHC didn't up the peak intensity to 150 or 155kts in the TCR. Gonna have to wait a few months though, sadly. I think that was definitely the most perfect-looking storm in the EPAC since Patricia though.


07 / 0000 15.3 112.4 926 140 minimum pressure &
maximum winds
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