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#1187527 (Received by flhurricane at: 10:54 AM 05.Jul.2024)
TCDAT2
Hurricane Beryl Discussion Number 28
NWS National Hurricane Center Miami FL AL022024
1000 AM CDT Fri Jul 05 2024
The center of Beryl made landfall on the Yucatan Peninsula of
Mexico just northeast of Tulum at about 11Z. The landfall intensity
is somewhat uncertain, but surface observations suggest the central
pressure rose into the 977-980 mb range before landfall. The
cyclone is now weakening as it moves farther inland, and the
initial intensity is reduced to 75 kt.
The initial motion is now 290/14 kt. For the next 24 h or so,
Beryl should be steered generally west-northwestward by the
western portion of the subtropical ridge over the southeastern
United States. After that, a turn toward the northwest is likely
as the storm moves towards a break in the ridge caused by a
combination of a trough in the mid-latitude westerlies over the
central United States and an upper-level trough moving westward
over the southwestern Gulf of Mexico. This motion should bring the
center near the western Gulf coast in about 72 h. Subsequently, a
northward motion through the break appears likely. While the track
guidance has come into better agreement, there is still uncertainty
based on the possible strength and vertical depth of Beryl. A
stronger and vertically deeper cyclone would feel more steering
from upper-level southwesterly flow caused by the Gulf trough, and
thus would have a more northward motion, while a weaker system
would probably continue more northwestward. Overall the guidance
favors the more northward motion and has shifted a little to the
right, and the new official forecast also is nudged a little to the
right of the previous forecast. Additional adjustments of the
forecast track could be necessary later today.
Beryl should continue to weaken while over land, and it is expected
to emerge over the Gulf of Mexico as a tropical storm. After that,
it could take 12-24 h for the cyclone`s structure to recover over
the Gulf of Mexico before re-intensification can begin in earnest.
Based on this and the overall trends of the intensity guidance, the
new forecast calls for gradual strengthening to start after 24 h
and continue until landfall. One important note is that the GFS
and ECMWF suggest that ongoing westerly shear could decrease after
48-60 h, accompanied by an increase in upper-level divergence.
Should this occur, Beryl could strengthen more than currently
forecast, especially if the center stays over water longer than
forecast.
Users are reminded that the average NHC track error at day 3 is
around 100 miles, and it remains too soon to pinpoint where the
greatest impacts will be. However, watches for portions of
northeastern Mexico and South Texas will likely be required later
today.
Key Messages:
1. Dangerous winds, storm surge, and heavy rainfall will continue
over portions of the Yucatan Peninsula within the warning areas
today. Residents there should shelter in place until these
life-threatening conditions subside.
2. There is an increasing risk of hurricane-force winds,
life-threatening storm surge, and flooding from heavy rainfall in
portions of northeastern Mexico and the lower and middle Texas coast
late Sunday and Monday. Interests in these areas should closely
monitor updates to the forecast. Storm Surge, Hurricane and
Tropical Storm Watches will likely be issued later today.
3. Rip currents will cause life-threatening beach conditions
beginning late today and continuing through the weekend across much
of the Gulf coast. Beachgoers should heed warning flags and the
advice of lifeguards and local officials before venturing into the
water.
FORECAST POSITIONS AND MAX WINDS
INIT 05/1500Z 20.7N 88.3W 75 KT 85 MPH...INLAND
12H 06/0000Z 21.4N 90.1W 55 KT 65 MPH...OVER WATER
24H 06/1200Z 22.5N 92.2W 55 KT 65 MPH
36H 07/0000Z 23.6N 94.1W 60 KT 70 MPH
48H 07/1200Z 24.6N 95.6W 65 KT 75 MPH
60H 08/0000Z 25.6N 96.6W 70 KT 80 MPH
72H 08/1200Z 26.8N 97.5W 75 KT 85 MPH...NEAR COAST
96H 09/1200Z 29.0N 98.0W 35 KT 40 MPH...INLAND
120H 10/1200Z 31.0N 97.0W 25 KT 30 MPH...INLAND
$$
Forecaster Beven |
