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Central America & Hispaniola Briefing

A comprehensive briefing on current weather conditions in Central America and Hispaniola as Hurricane Katia, a Category 3 storm, advances northwest at 10 mph with winds up to 125 mph. Tropical Storm Maria may form soon, moving westward. Recent TRMM data indicates significant rainfall variances across the region from August 30 to September 5, showing wetter conditions in Guatemala and below-average rainfall in El Salvador. This report highlights current moisture levels, drought impacts, and overall vegetation health across the affected areas.

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Central America & Hispaniola Briefing

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  1. Miliaritiana.robjhon@noaa.gov Central America & Hispaniola Briefing • Cat 3 Hurricane KATIA moving NW at 10 mph, with winds 125 mph and central pressure 950 mb • 1 Could become TS MARIA today or tomorrow and expected to move west/northwestward September 6, 2011

  2. This Week: TRMM Rainfall Past Week: TRMM Rainfall

  3. From August 30 – September 5, 2011 Huehuetenango = 51.8 mm San Salvador = 22.5 mm Choluteca = 117.4 mm Amapala= 122.2 mm San Jose = 26.7 mm Santa Ana = 10.0 mm Tocumen = 49.0 mm

  4. Continued wetter than average conditions in Guatemala • Below-average rainfall in El Salvador • Relief of moisture deficits in eastern Nicaragua This Week: TRMM Weekly Anomalies Past Week:

  5. Wetter than average northern CA • Below-average rainfall received in El Salvador and southern departments of Haiti • Persistent dry conditions along eastern Costa Rica and Nicaragua This Week: TRMM 30-day Anomalies Past Week:

  6. TRMM Primera Season Anomalies Percent Normal (%) TRMM August Anomalies Anomaly (mm)

  7. Dekadal WRSI: CA 3rd dekad of August 2nd dekad of August • Overall good conditions observed except northern Belize and central Honduras

  8. Dekadal WRSI and SWI: Haiti 3rd dekad of August 2nd dekad of August • Lasting impacts of the dryness during the past months

  9. NDVI anomalies Vegetation Health Index • Pacific Basin of Guatemala showed poor conditions • Favorable conditions in the Gulf of Fonseca • Poor conditions in the Grand-Anse of Haiti Source: NESDIS/STAR

  10. Very active convective systems in the Gulf of Mexico, Pacific, and Atlantic

  11. Overall reduction in rainfall across CA • Tropical storms forecast to move NNW and away from Hispaniola • Heavy rains associated with the system in the Gulf of Campeche, expected to bring heavy rains in western Guatemala

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