A front sretched from western Texas to the South Carolina coast will trigger scattered showers and thunderstorms as it sinks southward through the Southeast and Tennessee River Valley during the next few days. Surface waves along the front, with one tracking through Tennessee, will help develop some more organized areas of thunderstorms with heavy rain and intense storms. Areas of heavy rain are also expected along the Texas coast and the west coast of Florida.
To the north of front, high pressure over the Great Lakes region will keep temperatures at or slightly below normal across the Ohio Valley and into New England. An upper ridge building over the central Great Basin will keep temperatures across much of the western U.S. well above normal. Over the Four Corners region, moist monsoonal flow will keep scattered afternoon showers in the forecast through Thursday.
An upper ridge building over the central Great Basin will keep temperatures across much of the western U.S. well above normal for the remainder of the week. Excessive Heat Warnings are in effect for the lower elevations of the Desert Southwest, where daytime highs in the 110 to 120 degree range are expected.
There are critical fire weather areas for portions of southwestern (into southeastern) Montana, western and central Wyoming, far eastern Idaho, and extreme northeastern Utah. There’s a threat of dry thunderstorms across the area and across portions of the great basin to the northern Rockies.
At 200 AM PDT the center of Hurricane Emilia was located about 720 miles southwest of the southern tip of Baja California. Movement was toward the west-northwest near 10 MPH and this general motion is expected to continue for the next couple of days. Maximum sustained winds were near 105 MPH with higher gusts. Emilia is a Category Two Hurricane on the Saffir-Simpson Hurricane Wind Scale. Slow weakening is forecast during the next 48 hours.
At 200 AM PDT the center of Tropical Storm Daniel was located about 1055 miles east-southeast of Hilo Hawaii. Movement was toward the west near 16 MPH and this motion is expected to continue during the next 48 hours. On the forecast track Daniel will cross over into the central Pacific Ocean later this morning. Maximum sustained winds were near 40 MPH with higher gusts. Weakening is forecast during the next couple of days and Daniel is expected to become a post-tropical remnant low pressure system by Thursday.
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