Advisory NPW Special Advisory — Sun Jun 30, 2024 4:18 AM

NPWSJU) is in effect for the west, north, and eastern
coastal municipalities of PR and St. Croix. Maximum temperatures should
reach the low 90s across the lower elevations, with general heat indices
ranging between 106F and 112F.

There haven`t been significant changes in the forecast track for
Beryl, which is expected to pass about 200 miles south of the
islands. However, weather conditions will quickly deteriorate
between Monday afternoon and Tuesday as the outer bands from
Tropical Cyclone Beryl bring showers and thunderstorms to the local
area. Squally weather with strong gusty winds is possible across
portions of the Caribbean waters, the US Virgin Islands, and
eastern/southern Puerto Rico through Tuesday.

.LONG TERM...Wednesday through Sunday...

After the passage of Hurricane Beryl south of the local area, a
drier airmass will quickly move over the islands. This drier airmass
will promote stable conditions on Wednesday with limited shower
activity. However, by Thursday onwards tropical activity is expected
once again.

The National Hurricane Center (NHC) is currently monitoring an area
of low pressure located over the eastern Atlantic with a medium to
high formation chance over the next 7 days. Latest model guidance
suggest that this system will develop as a tropical storm or
hurricane before reaching the Lesser Antilles. Nonetheless, this
system should remain south of the islands and over the Caribbean
waters. At this moment some of the potential indirect impacts
associated to this low are: localized flooding, gusty winds,
squally weather, and deteriorated marine and coastal conditions.
It is too early at this moment to determine the amount of expected
rain. Therefore, residents and visitors of Puerto Rico and the
U.S. Virgin Islands may continue to monitor the progress of this
system as it moves towards the Caribbean. A vast moisture field of
this low will persist across the region once it departs on
Saturday, promoting afternoon convective activity across the
western portions of Puerto Rico. Following the system, more drier
air and Saharan Dust particles will take over, enhancing stable
and dry conditions for few days. Despite of the expected weather,
high temperatures will remain between the upper 80s to low 90s
across the islands with heat indices surpassing the mid 100s.

&&

.AVIATION...

(06Z TAFS)

Mainly VFR conditions expected across all terminals. However,
SHRA/TSRA expected to develop due to a departing tropical wave may
cause tempo MVFR conds at TJSJ/TJBQ btw 30/16-22z. HZ due to Saharan
dust expected but VSBY should remain P6SM. East winds at 12-16 kt
with stronger gusts and sea breeze variations aft 30/14z.

&&

.MARINE...

A surface high pressure over the central Atlantic will promote
moderate to locally fresh easterly winds over the next few days,
bringing trade wind showers. Hurricane Beryl is forecast to
strengthen as it approaches the Caribbean waters late Monday night
into Tuesday, deteriorating marine and coastal conditions
considerably for the Caribbean and local passages.

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...Heat Advisory from 10 AM this morning to 5 PM AST this afternoon
     for PRZ001-002-005-008-010-012-013.

VI...Heat Advisory from 10 AM this morning to 5 PM AST this afternoon
     for VIZ002.

AM...None.
&&

$$