Monthly Weather Summary - National Meteorological Service of Belize
  • Small craft caution for gusty winds and locally rough seas near showers and thunderstorms.
  • Localized flooding is likely for low lying areas and flood prone areas.
Tropical Weather Outlook
  • For the North Atlantic, Caribbean Sea and Gulf of Mexico tropical cyclone formation is not expected during the next 48 hours.

Hurricane Tips
  •  Fill sinks, bathtub and large containers with water as an extra supply for washing and flushing.
  •  During the hurricane season, fisher folks are strongly advised to stay informed via radio, listen to the weather bulletin before venturing out to sea. Move your boat to safe harbor early.
  •  Prepare your car in case of evacuation. Fill your tank and check your tires.
  •  Upon alert, farmers should harvest crops which can be stored, consumed and sold.
 August 2017     |     Print Forecast

THE MONTH OF AUGUST SAW RAINFALL LESS THAN NORMAL AT ALL STATIONS, ESPECIALLY THE NORTH AND SOME CENTRAL AREAS, WHERE LESS THAN 45 PERCENT WAS RECIEVED. TWO TROPICAL CYCLONES THREATENED TO AFFECT BELIZE; TROPICAL STORM FRANKLIN PASSED TO THE NORTH WITHOUT MUCH IMPACT, AND TROPICAL STORM HARVEY DISSIPATED BEFORE REACHING OUR AREA AND THE REMNANT LOW MOVED ACROSS THE YUCATAN PENINSULA, AGAIN WITH LITTLE EFFECT.

A MODERATE AND RELATIVELY DRY EAST-SOUTHEASTERLY AIRFLOW PREVAILED AT THE BEGINING OF THE MONTH AND SUPPORTED MAILY FAIR WEATHER FROM THE 1ST TO THE 3RD. THE UPPER PATTERN WAS NEUTRAL TO WEAKLY CONVERGENT. SHOWERS WERE ISOLATED DURING THE DAYTIME, WITH A FEW MORE ALONG WITH ISOLATED THUNDERSTORMS OVER THE SOUTH AT NIGHT. RAINFALL OCCURRED MAINLY OVER THE SOUTH AND WAS NOT MORE THAN HALF AN INCH PER DAY. THE SURFACE AND LOW LEVEL FLOW BACKED TO THE EAST-NORTHEAST THEN NORTHEAST THROUGH THE NEXT THREE DAYS (4-6) AS A STRONG TROPICAL WAVE MOVED ACROSS THE CENTRAL CARIBBEAN SEA. A FEW SHOWERS AND ISOLATED THUNDERSTORMS DEVELOPED MAINLY INLAND DURING THE DAYTIME AND OVER THE SOUTH DURING THE NIGHT. PUNTA GORDA RECORDED JUST OVER THREE INCHES OF RAIN ON THE 5TH. THE WAVE DEVELOPED A LOW PRESSURE AREA NEAR 15N/82W AND WAS GIVEN A POTENTIAL TROPICAL CYCLONE STATUS ON THE AFTERNOON OF THE 6TH. BY THAT NIGHT, TROPICAL STORM FRANKLIN FORMED OVER THE NW CARIBBEAN SEA AND WAS HEADING FOR THE YUCATAN PENINSULA JUST NORTH OF BELIZE. SOME SHOWERS AND LIGHT RAIN AFFECTED MOST AREAS DURING THAT NIGHT AND CONTINUED THE NEXT DAY AS TROPICAL STORM FRANKLIN APPROACHED THE YUCATAN PENINSULA. ABOUT ONE AND A HALF INCHES OF RAIN WERE RECORDED AT BELIZE CITY AND BLUE CREEK TOLEDO. TS FRANKLIN MOVED ACROSS YUCATAN AND SUPPORTED A GUSTY SOUTHEAST AIRFLOW OVER BELIZE ON THE 8TH. A FEW SHOWERS CONTINUED OVER CENTRAL AND NORTHERN AREAS, WITH THE RAINS INCREASING OVER MOST AREAS THAT NIGHT. RAINFALL HOWEVER, WAS LESS THAN ANTICIPATED. THE NEXT TWO DAYS (9-10) SAW SKIES BECOMING CLOUDY AT TIMES WITH A FEW SHOWERS, THUNDERSTORMS OR LIGHT RAIN MAINLY OVER THE NORTH DURING THE DAYTIME AND OVER THE SOUTH IN THE NIGHT. SAN PEDRO RECEIVED ALMOST FOUR INCHES OF RAIN ON THE 9TH.

FROM THE 11TH TO THE 15TH, CONDITIONS DRIED OUT SOMEWHAT AS A HIGH PRESSURE RIDGE OVER THE NORTHEAST GULF OF MEXICO SUPPORTED A GENERALLY EASTERLY SURFACE FLOW OVER OUR AREA. A NEUTRAL TO WEAKLY CONVERGENT UPPER PATTERN PREVAILED DURING THAT TIME. ISOLATED SHOWERS AND THUNDERSTORMS DEVELOPED DURING THE DAYTIME, WITH A FEW MORE MAINLY OVER THE SOUTH AND SOME PARTS OF THE COAST AT NIGHT; WITH THE SOUTH RECEIVING MORE THAN TWO INCHES OF RAINFALL ON SOME NIGHTS. THE 16TH SAW A FEW SHOWERS OVER CENTRAL AREAS AS AN EAST-WEST LINE OF LIGHT TO MODERATE SHOWERS PERSISTED FOR MOST OF THE DAY OVER THAT AREA. OVER THE NEXT THREE DAYS (17-19) THE WEATHER RETURNED TO MAINLY FAIR COUNTRYWIDE WITH ONLY ISOLATED SHOWERS, AND THE SURFACE FLOW BECAME MOSTLY EAST-NORTHEASTERLY. SHOWERS INCREASED OVER THE SOUTH ON SOME NIGHTS, WITH PUNTA GORDA RECORDING ONE AND A HALF INCHES OF RAIN ON THE 17TH. OVER THOSE SAME DAYS, TS HARVEY FORMED EAST OF THE LESSER ANTILLES AND MOVED TO THE SOUTH CENTRAL CARIBBEAN, WITH THE OFFICIAL FORECAST CONSISTENTLY BRINGING IT TOWARDS BELIZE. (HARVEY DEGENERATED THAT NIGHT, AND THE REMNANT LOW PRESSURE MOVED WEST-NORTHWEST ACROSS THE WESTERN CARIBBEAN AND YUCATAN, THEN REFORMED ON THE 23RD IN THE BAY OF CAMPECHE.)

AN UPPER LOW OVER THE EASTERN GULF OF MEXICO HELPED TO SUPPORT A FEW SHOWERS OVER INLAND AND SOUTHERN AREAS ON THE 20TH, WITH PUNTA GORDA RECORDING ALMOST THREE INCHES OF RAIN. AS THE REMNANTS OF HARVEY APPROACHED OUR AREA, THE SURFACE FLOW BACKED TO THE NORTH-NORTHEAST AND A FEW SHOWERS AND RAIN AFFECTED COASTAL AND NORTHERN AREAS ON THE 21ST, THEN MAINLY THE INTERIOR THE NEXT DAY AS THE LOW MOVED ACROSS THE YUCATAN PENINSULA. RAINFALL WITH THIS SYSTEM WAS AGAIN MUCH LESS THAN EXPECTED. TROPICAL DEPRESSION HARVEY OVER THE GULF OF MEXICO SUPPORTED A LIGHT EAST-SOUTHEAST AIRFLOW AND A GRADUAL DRYING OUT AT LOW LEVELS. THIS RESULTED IN GENERALLY ISOLATED SHOWERS AND THUNDERSTORMS ON THE 23RD AND 24TH. THE NEXT DAY, A FEW SHOWERS AND ISOLATED THUNDERSTORMS DEVELOPED MAINLY INLAND AND OVER THE SOUTH, WITH MORE OVER THE SOUTH THAT NIGHT. THESE WERE SUPPORTED BY A WEAK TROPCAL WAVE. HURRICANE HARVEY MEANDERED OVER THE COAST OF TEXAS THE NEXT FEW DAYS, AND A MODERATE EAST-SOUTHEAST SURFACE FLOW SUPPORTED MAINLY FAIR AND WARM WEATHER OVER BELIZE WITH ONLY ISOLATED SHOWERS AND ISOLATED THUNDERSTORMS MAINLY INLAND IN THE AFTERNOON. THIS OCCURRED FROM THE 26TH TO THE 29TH WITH VERY LITTLE RAINFALL. A TROPICAL WAVE THEN SUPPORTED AN INCREASE IN MOISTURE AND A FEW SHOWERS OR THUNDERSTORMS OVER MOST AREAS THE LAST TWO DAYS OF THE MONTH. ONE TO TWO INCHES OF RAIN FELL ON SOUTHERN COASTAL AREAS ON THE 31ST.

Forecaster: Rudon, Derrick

Last Updated: Fri, Sep 29, 2017 | 03:01 PM