Flood Potential Outlook
Issued by NWS San Juan, PR

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1
000
FGCA72 TJSJ 271538
ESFSJU
PRC001-003-005-007-009-011-013-015-017-019-021-023-025-027-029-
031-033-035-037-039-041-043-045-047-049-051-053>055-057-059-061-
063-065-067-069-071-073-075-077-079-081-083-085-087-089-091-093-
095-097-099-101-103-105-107-109-111-113-115-117-119-121-123-125-
127-129-131-133-135-137-139-141-143-145-147-149-151-153-VIC010-
020-030-291545-

HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE SAN JUAN PR
1138 AM AST WED MAY 27 2015

...INCREASING MOISTURE AHEAD FOR PUERTO RICO AND THE U.S. VIRGIN
ISLANDS BEGINNING FRIDAY...

AFTER A LONG PERIOD OF EXTENDED BELOW NORMAL PRECIPITATION...MAINLY
OUTSIDE OF WEST CENTRAL PUERTO RICO AND INCLUDING THE U.S. VIRGIN
ISLANDS...BETTER MOISTURE AND MORE FAVORABLE DYNAMICS WILL ARRIVE
BEGINNING FRIDAY. LIMITED MOISTURE...SITUATED BETWEEN A MID AND
UPPER LEVEL LOW AND AN ADVANCING AREA OF MOISTURE FROM THE
TROPICAL ATLANTIC WILL BRING SLIGHTLY DRIER CONDITIONS TODAY AND
THURSDAY...BUT MODELS HAVE BEEN CONSISTENT IN BRINGING MUCH MORE
MOISTURE TO THE AREA FROM THE SOUTHEAST FRIDAY...AND THIS MOISTURE
WILL CONTINUE THROUGH AT LEAST EARLY MONDAY.

AT PRESENT...THE LEAST THAT CAN BE EXPECTED IS A TURN IN THE
OVERALL CONDITIONS TO A MUCH MORE SHOWERY SCENARIO WITH SOME
THUNDERSTORMS...MORE RAINFALL COVERAGE AND HEAVIER RAINFALL WHERE
RAIN FALLS. THIS COULD BRING WATER TO NORMALLY DRY CREEKS AND GUTS
AND RAISE THE GENERAL LEVEL OF MOST RIVERS AND STREAMS IN THE
AREA.

THERE IS A POSSIBILITY THAT SOME LOCAL AREAS...ESPECIALLY ALONG
THE CORDILLERA CENTRAL AND IN THE U.S. VIRGIN ISLANDS...MAY
RECEIVE EXCESSIVE RAINFALL RESULTING IN SOME LOCAL FLOODING OF
STREAMS...GUTS...LOCAL RIVERS AND LOW-LYING AREAS WHERE LOCAL
WINDS BRING REPEATED ROUNDS OF SHOWERS AND THUNDERSTORMS ACROSS
THE SAME AREA FOR MULTIPLE HOURS. THE HIGHEST PROBABILITY OF THIS
HAPPENING IS FROM FRIDAY AFTERNOON TO SUNDAY NIGHT.

RESIDENTS IN AREAS NORMALLY PRONE TO FLOODING SHOULD BEGIN TO TAKE
PRECAUTIONARY MEASURES WHICH WOULD INCLUDE PREPARING PLANS TO
MOVE OR PROTECT PETS...LIVESTOCK...EQUIPMENT AND PERSONAL
BELONGINGS. RESIDENTS SHOULD ALSO REVIEW SAFETY PROCEDURES AND
EVACUATION ROUTES FOR THE MUCH DELAYED ONSET OF OUR NORMAL RAIN
AND FLOOD SEASON. THESE PLANS SHOULD BE PUT IN PLACE IF AND WHEN
THE NATIONAL WEATHER SERVICE ISSUES A FLASH FLOOD WATCH.

THOSE THAT LIVE BELOW AREAS THAT HAVE BURNED SHOULD BE AWARE THAT
RUNOFF WILL OCCUR MUCH SOONER AND WILL BE MUCH FASTER THAN NORMAL
OVER THE SCORCHED AND CLEARED GROUND.

WETTER CONDITIONS...THOUGH NOT NECESSARILY FLOODING...ARE FORESEEN
THROUGH ALMOST ALL OF THE FOLLOWING WORK WEEK.

$$

SNELL



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.