Regional weather: Tuesday, June 13 - Southeast U.S. / Eastern Gulf: Tropical Storm Alberto - which formed during the weekend in the Gulf of Mexico - moved onshore during the midday hours today in the FL Big Bend region. Alberto will merge with a stationary front over the Southeast as it continues to move to the northeast. Heavy rains are falling ahead of Alberto's track, and bands of showers and storms are occurring near to and south of the storm. This pattern will continue as Alberto moves through the Carolinas Tuesday night and Wednesday. The bulk of the rainfall will occur in FL and central and eastern sections of GA and the Carolinas. Highs will be in the 70's and 80's. Lows in the 60's and 70's.

Trajectory weather: Cloudy with shower and thunderstorms today, chance of rain 70-80%. High in the mid-80's. Rain tonight and Wednesday, low in the low 70's. Chance of rain 80-100%. High Wednesday upper 70's.

Trajectory confidence: High

OUTLOOK: *** Serious Threat ***

Tuesday and Wednesday: Favorable conditions for survivable transport and effective deposition for Tuesday's event. Some airborne spores will likely be deposited in the Carolinas, though washout to the south will reduce the number. HIGH Risk for central and northern FL and southern GA. Moderate Risk for eastern SC and eastern NC. Wednesday ... transport events move ENE and out to sea. Conditions near the sources remain mostly favorable. Strongly Moderate Risk for central FL on Wednesday. Low Risk otherwise.