Hydrologic Outlook

Hydrologic Outlook
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Hydrologic Outlook
National Weather Service San Juan PR
850 AM AST Mon May 20 2024

...UNSETTLED AND WET CONDITIONS EXPECTED WEDNESDAY ONWARD FOR
PUERTO RICO AND THE VIRGIN ISLANDS...

A significant increase in moisture caused by an approaching mid
to upper level trough, and a developing surface low pressure
system will result in an enhanced risk for flooding later this
week across Puerto Rico and the Virgin Islands.

The rain is expected to reach the islands in pulses. The first
episode should reach the area on Wednesday, with showers moving
from the Caribbean Sea into the Virgin Islands, and across the
southern and eastern half of Puerto Rico. Another pulse is
expected to reach the islands on Thursday, with lingering effects
into Friday. The moisture field associated with this trough is
expected to be around through at least late Saturday.

Prolonged periods of moderate to locally heavy rainfall will
enhance the risk of flooding, river rises, and mudslides. It is
possible that some rivers overflow, and that flash floods develop
as well. The users are advised to stay tuned to weather updates,
especially those that live or commute in flood prone areas.

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