December 17, 2005 (6:00 a.m.)
SAN PEDRO WEATHER DISCUSSION by Winston Panton (with
excerpts from the Tropical Prediction Center)
TODAY’S FORECAST
A very active weather regime will continue to stall
weak cold fronts over the Yucatan peninsula and
adjacent to Belize.
Ambergris Caye, San Pedro and Caye Caulker will
experience for the next 24 hrs:
Cloudy skies and widely scattered light showers will
develop early morning and at night but few sunny
breaks will occur. Winds will be from the East to
Southeast at 5 to 15 kts. High Temperatures around 86
F / 30 C. The sea state will be light chop to choppy.
The outlook is for partly sunny weather through
Sunday.
Current Weather:
Station: San Pedro Lagoon 0730 hrs
Cloud 3/8 Cumulus
Wind (speed & dir’n) 5 kts Southeast
Air & Sea Temp. C C
Tide and Salinity 0.42 m 37t/c
Precip. None (AM)
Western Caribbean & Yucatan:
A STRONG UPPER LEVEL ANTICYCLONE IS CENTERED NEAR ERN
PANAMA AND NW COLOMBIA WITH A RIDGE AXIS EXTENDING NWD
TO THE WINDWARD PASSAGE
TO THE W OF THE ANTICYCLONE AND N OF THE RIDGE WITHIN
THE AREA ROUGHLY NW OF LINE FROM THE YUCATAN PENINSULA
TO 31N71W, SW FLOW WILL PREVAIL THROUGH WEDNESDAY AS A
SERIES OF SHORTWAVE TROUGHS ROTATES SEWD INTO THE GULF
OF MEXICO.
A COLD FRONT WILL TRAIL FROM THE LOW FROM NEAR 31N72W
THROUGH THE STRAITS OF FLORIDA TO THE YUCATAN
PENINSULA AND INTO THE BAY OF CAMPECHE BY LATE SUNDAY.
LITTLE CHANGE IS EXPECTED IN THE OVERALL PATTERN
EXCEPT THAT AN INCREASE IN MOISTURE OVER THE NW
CARIBBEAN BEGINNING SUN NIGHT COULD RAISE THE CHANCE
FOR SHOWERS.
LOW PRES HAS FORMED OVER THE EXTREME SW BAY OF
CAMPECHE NEAR 21N95W AT 1011 MB. THIS LOW OR A NEW ONE
THAT FORMS ALONG THE TROUGHS WILL RAPIDLY MOVE ENE.
EASTERLY TRADES ACROSS THE CARIBBEAN ARE IN THE RANGE
OF E-SE 10-15 KT OVER MUCH OF THE NW PART.
Central Caribbean:
LARGE DOMINANT ANTICYCLONE IS LOCATED OVER E CUBA AND
THE SE BAHAMAS WITH RIDGE EXTENDING SW ACROSS THE
CARIBBEAN TO GUATEMALA.
MODERATE/STRONG SUBSIDENCE DOMINATES THE ENTIRE AREA
BENEATH THE ANTICYCLONE.
THE GREATEST CONCENTRATION OF SHOWERS ARE LOCATED NEAR
THE SRN WINDWARD ISLANDS...OVER THE MOUNTAINS OF
HISPANIOLA...AND MOVING ONSHORE INTO NICARAGUA AND
COSTA RICA.
ELY TRADES ACROSS THE CARIBBEAN ARE IN THE RANGE OF
20-25 KT WITH SUSTAINED NE WINDS OF 25 KT WITHIN 110
NM OF THE COLOMBIAN COAST.