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174
WTPZ41 KNHC 020842
TCDEP1
Tropical Storm Javier Discussion Number 3
NWS National Hurricane Center Miami FL EP112022
300 AM MDT Fri Sep 02 2022
Since yesterday afternoon, deep convection has been developing over
the western half of the cyclone. Although the surface circulation
is still elongated (north to south), deep bursts of convection
have recently appeared near the estimated center. The latest
microwave imagery indicated curved banding with cold cloud
tops of -81C forming in the southeast quadrant. A blend of the
subjective satellite intensity from TAFB and SAB yields an estimate
of 35 kt. Accordingly, the depression has been upgraded to a
tropical storm for this advisory.
The depression is expected to remain in an environment conducive
for additional strengthening through Saturday, but given its
broad, elongated structure, only modest intensification is
forecast. Afterward, gradual weakening is expected as the cyclone
traverses decreasing (22-24C) oceanic temperatures while moving
into a stable, dry marine layer. The intensity forecast is an
update of the previous one and is based on the various intensity
consensus guidance.
Javier's initial motion is estimated to be northwestward, or 320/9
kt, moving along the western periphery of a mid-tropospheric ridge
over northern Mexico. By the 48 hour period, the ridge as
mentioned above is expected to build westward, which should cause
the cyclone to turn toward the west-northwest and west over the
weekend. The official track forecast is again adjusted to the
right of the previous forecast based on a mean track of the
clustered guidance, however, tropical-storm-force winds generated
by Javier are expected to remain well offshore of the western coast
of Baja California Sur. Associated outer rainbands and large
swells are expected to affect portions of the southern and
central Baja California peninsula coast during the next couple of
days.
FORECAST POSITIONS AND MAX WINDS
INIT 02/0900Z 19.9N 111.7W 35 KT 40 MPH
12H 02/1800Z 21.2N 112.5W 40 KT 45 MPH
24H 03/0600Z 23.0N 114.1W 45 KT 50 MPH
36H 03/1800Z 24.6N 116.2W 45 KT 50 MPH
48H 04/0600Z 25.6N 118.7W 40 KT 45 MPH
60H 04/1800Z 26.1N 121.4W 35 KT 40 MPH...POST-TROPICAL
72H 05/0600Z 26.1N 123.9W 30 KT 35 MPH...POST-TROP/REMNT LOW
96H 06/0600Z 25.5N 129.2W 25 KT 30 MPH...POST-TROP/REMNT LOW
120H 07/0600Z 24.8N 133.1W 25 KT 30 MPH...POST-TROP/REMNT LOW
$$
Forecaster Roberts
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