National Weather Service Text Product Display

Area Forecast Discussion
Issued by NWS San Juan, PR

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 150842
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
442 AM AST FRI FEB 15 2013

.SYNOPSIS...AN UPPER LEVEL RIDGE WILL CONTINUE TO INDUCE A GENERALLY
FAIR AND STABLE WEATHER PATTERN ACROSS THE LOCAL ISLANDS FOR THE
NEXT SEVERAL DAYS. SURFACE HIGH PRESSURE FARTHER ACROSS THE CENTRAL
ATLANTIC WILL PROMOTE AN EAST SOUTHEAST LOW LEVEL WIND FLOW ACROSS
THE NORTHEAST CARIBBEAN.

&&

.DISCUSSION...SMALL PATCHES OF LOW TO MID LEVEL MOISTURE EMBEDDED IN THE
TRADE WIND FLOW MOVED ACROSS THE REGION OVERNIGHT AND EARLY THIS
MORNING. DOPPLER WEATHER RADAR DETECTED LIGHT ISOLATED SHOWERS
ACROSS THE CARIBBEAN AND ATLANTIC COASTAL WATERS WITH FEW OF THEM
AFFECTING THE EASTERN SECTIONS OF PUERTO RICO AS WELL AS
VIEQUES...CULEBRA AND THE U.S.V.I. HOWEVER MOST OF THE REGION WAS
RAIN FREE AS THE UPPER LEVEL RIDGE CONTINUES TO DOMINATE THE
LOCAL AREA. MODEL GUIDANCE SUGGESTS THAT THIS MASS OF RELATIVELY
DRY AIR WILL PERSIST OVER THE FA TODAY AND FOR THE WEEKEND. IN
FACT PWAT VALUES WILL CONTINUE BELOW OR CLOSE TO 1.0 INCH FOR THE
NEXT FEW DAYS.

&&

.AVIATION...VFR CONDS WILL PREVAIL ACROSS ALL TAF SITES DURG THE
NEXT 24 HOURS. PREVIOUS TJSJ U/A SOUNDING AND LATEST WSR88-D VAD WIND
PROFILE INDICATED MAINLY EAST TO EAST-SOUTHEAST WINDS BETWEEN 5 TO
20 KTS BLO FL150.THEN SLIGHTLY BACKING AND BCMG FM THE NORTH AT
15-20 KTS UP TO FL350.PASSING LOW LEVEL CLDS AND FEW TRADE WINDS
SHRA WILL MOVE WEST ACROSS REGIONAL WATERS BTW ERN PR AND THE NRN
LEEWARDS INCLUDING THE USVI. SOME AFTN SHOWERS REMAIN PSBL NR TJBQ
AND TJMZ BETWEEN 15/17Z-15/20Z.

&&

.MARINE...SEAS OF 5 FEET OR LESS AND WINDS OF 17 KNOTS OR LESS ARE
EXPECTED ACROSS THE REGIONAL WATERS TODAY AND FOR THE UPCOMING
WEEKEND. MODELS STILL SUGGEST THAT THE WINDS AND SEAS WILL
INCREASE RAPIDLY EARLY NEXT WEEK.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  84  73  83  73 /  20  10  10  10
STT  84  73  84  75 /  20  20  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

09/72

National Weather Service
National Weather Service National Headquarters
1325 East West Highway
Silver Spring, MD 20910
Web Master's E-mail: NWS Internet Services Team
Page last modified: Jul 16th, 2012 21:26 UTC

National Weather Service National Headquarters