Area Forecast Discussion
Issued by NWS San Juan, PR

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXCA62 TJSJ 290932
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
532 AM AST WED JUL 29 2015

.SYNOPSIS...A TROPICAL WAVE IS FORECAST TO ENTER THE EASTERN
CARIBBEAN BY TODAY. IT IS TO THEN MOVE ACROSS THE REGIONAL WATERS
ON THURSDAY AND FRIDAY...WHILE TRANSPORTING A SURGE OF TROPICAL
MOISTURE. TUTT LOW WILL CONTINUE TO RETROGRESS OVER THE REGION
NEXT FEW DAYS.

&&

.DISCUSSION...SOME VERY LIGHT SHOWERS WERE NOTED OVER THE COASTAL
WATERS. IN GENERAL...DRY WEATHER CONDITIONS PREVAILED ACROSS THE
LOCAL REGION OVERNIGHT. FOR TODAY...DRY AIR WILL CONTINUE TO
DOMINATES THE REGION WITH ONLY SCATTERED SHOWERS WITH ISOLATED
THUNDERSTORMS EXPECTED TO DEVELOP MAINLY OVER THE WESTERN INTERIOR
AND WEST SECTIONS OF PUERTO RICO.

LATEST WATER VAPOR SATELITE IMAGES SHOWS WELL DEFINED TUTT LOW
NORTH OF THE AREA. THIS FEATURE WILL CONTINUE TO RETROGRESS
ACROSS THE REGION NEXT FEW DAYS. THE LOW IS EXPECTED TO BE IN A
FAVORABLE AREA FOR SHOWER AND THUNDERSTORM DEVELOPMENT FRIDAY. IN
ADDITION...A TROPICAL WAVE WILL APPROACH THE REGION FROM THE
EAST. LOW LEVEL MOISTURE WILL INCREASE MAINLY FRIDAY...WITH
PRECIPITABLE WATER VALUES ACROSS THE REGION EXPECTED TO REACH
AROUND 2.10 INCHES BY FRIDAY AFTERNOON. FOR THE WEEKEND...ANOTHER
AREA OF DRY AIR WILL MOVE ACROSS THE REGION. BY MONDAY...ANOTHER
TROPICAL WAVE IS EXPECTED TO PASS ACROSS THE REGION.

&&

.AVIATION...VFR CONDITIONS ARE EXPECTED ACROSS THE LOCAL FLYING AREA
THROUGH THE FORECAST PERIOD. VCSH/VCTS ARE ALSO POSSIBLE ACROSS TJMZ
AND TJBQ AFTER 29/17Z. SUSPENDED SAHARAN DUST WILL CONTINUE ACROSS
THE REGION...BUT VISIBILITY EXPECTED TO REMAIN P6SM. EAST WINDS WILL
PREVAIL AROUND 15 KTS FM SFC TO FL100.

&&

.MARINE...SEAS UP TO 5 FEET AND WINDS 10 TO 15 KNOTS. 5 FEET
MAINLY ACROSS THE OFFSHORE CARIBBEAN WATERS...ELSEWHERE 4 FEET
OR LESS.

&&

.FIRE WEATHER...ELEVATED FIRE WEATHER CONDITIONS EXPECTED
TODAY...MAINLY FOR PORTIONS OF SOUTHERN AND SOUTHWESTERN PUERTO
RICO. REFER TO THE FIRE DANGER STATEMENT FOR ADDITIONAL DETAILS
ABOUT THE CURRENT CONDITIONS.


&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  91  78  89  78 /  20  10  30  20
STT  90  79  89  79 /  20  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
AM...NONE.
&&

$$

11/71



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