A weak frontal boundary, combined with considerable moisture convergence is expected to result in widespread shower and thunderstorm activity from the mid-Atlantic to New England through Wednesday. This boundary should begin to dissipate by Thursday. Heavy rain is expected for parts of the northeast, while the hot weather continues for the desert southwest. Showers and thunderstorms over Texas and the Great Lakes are likely.
At 2:00 AM PDT, The center of Tropical Storm Aletta was located about 640 miles south-southwest of Manzanillo Mexico. Aletta is moving toward the west-northwest near 9 MPH, and this general motion is expected to during the next 48 hours. Maximum sustained winds are near 40 MPH, with higher gusts. Some additional strengthening is forecast during the next day or so, followed by gradual weakening. Tropical Storm force winds extend outward up to 35 miles from the center.
There is a slight risk of severe thunderstorms across parts of the upper Mississippi Valley and western Great Lakes region. Severe thunderstorms are also possible across parts of the Carolinas. Yesterday there were over 40 reports of severe weather including one tornado near Diggs (Richmond County) North Carolina with minor damage reported.
There is a critical fire weather area for the southern great basin today. Moderate to severe drought is contributing to drier than average fuels where temperatures will be above normal.