A broad area of low pressure is expected to form south of the Gulf of Tehuantepec later this week in association with a westward-moving tropical wave that is currently located south of Guatemala. Environmental conditions are forecast to be conducive for gradual development of the disturbance, and a tropical depression could form over the weekend while the system moves generally westward or west-northwestward at 10 to 15 mph, remaining well offshore of the coast of Mexico.
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* Formation chance through 48 hours…low…near 0 percent
* Formation chance through 5 days…medium…60 percent