Regional weather: Wednesday, June 1 - Extreme southern Mexico: Persistent tropical convection is predicted to cover the Yucatan and Southern Mexico regions through Wednesday and Thursday.

Trajectory weather:Overcast with rain and thunderstorms possible later in the afternoon. High of 36C and a low of 24C.

Trajectory confidence: High

OUTLOOK: *** High Threat ***

Wednesday and Thursday: 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 chance for the sun to peak through the clouds for brief periods. Strongly Moderate risk near the source area. Low Risk otherwise.