Regional weather: Wednesday, June 29 - Extreme southern Mexico: Persistent tropical convection is predicted to cover the Yucatan and Southern Mexico regions due to upper-level divergence in the atmosphere and the influence of tropical waves.

Trajectory weather: Mixed cloud cover with rain and thunderstorms possible later in the afternoon. High of 35Cand a low of 25C.s

Trajectory confidence: High

OUTLOOK: *** Moderate Threat ***

Wednesday and Thursday: The strength of the source in Tapachula is not specifically known. However, due to the lateness of the season, we expected it to be diminished. Therefore, risk levels will be dropped one level to represent the suspected weakness of the source.

The constant threat of clouds, rain, and thunderstorms creates a persistent and favorable environment for disease development. However, the strength of the source is suspect and there is a good chance for the sun to peak through the clouds for brief periods. Moderate risk near the source area. Low Risk otherwise.