A plume of moisture surging northward from the Gulf of Mexico and Caribbean Sea will bring widespread tropical downpours to a large part of the Southeast through the holiday weekend.
Some cities that have the highest potential for flooding on multiple days through the weekend include Tampa, Pensacola and Tallahassee, Fla.; Atlanta, Ga.; Birmingham, Ala.; Greenville, S.C.; Knoxville, Tenn.; London, Ky.; Charleston, W.Va. and Pensacola, Fla.
Some locations have seen as much as eight inches of rain since Thursday from this moist flow from the Gulf of Mexico.
AccuWeather.com meteorologists are especially concerned for dangerous flash flooding along the western Florida Panhandle and across parts of central Tennessee and central Kentucky.
While widespread river flooding is not likely from this event, there is considerable concern for rapid, dangerous flash flooding of low-lying areas, urban areas, areas with poor drainage and along smalls streams.
Numerous blinding downpours will cause severe restrictions to normal driving speed as low visibility and water-logged roadways bring the risk of hydroplaning.
Those traveling I-65 in Alabama, I-40 in Tennessee or I-10 in the Florida Panhandle will likely endure significant delays this afternoon and evening.
Arrival and departure delays at major airports like Atlanta's Hartsfield International may also be common, especially as drenching storms engulf the region in the afternoon and evening hours.
This situation has the potential to be particularly dangerous in some areas. It is important to remember that flash flooding can be life-threatening. Not every location will have flash flooding, and some areas may not receive much rainfall at all, but that will not be the case in other, less lucky locations.
Tremendous rainfall in a short amount of time can cause flooding in areas that you might not even think can flood. Yards and basements can become more like lakes and swimming pools. In towns with hilly terrain, streets can easily be turned into rushing rivers.
It only takes a few inches of swift-moving water to sweep a person from his feet and only 18 inches to lift a vehicle and wash it away.
A 21-year-old California woman died recently after contracting a rare infection caused by a brain-eating amoeba that thrives in warm bodies of water.
Holiday festivities may be disrupted by severe thunderstorms into Saturday evening across the northern Plains.
It will not just be emotions running high around Vancouver, Canada, Sunday afternoon for the final match of the 2015 Women’s World Cup, but also temperatures.
Strong and locally dangerous thunderstorms will ignite from northwestern Minnesota to northeastern Colorado during Sunday. Storms will extend from upper Michigan to northwest Texas on Monday.
While the Philippines will escape Chan-hom, the same cannot be said for Tropical Storm Linfa.
Americans will be hoping for clear skies this Saturday, July 4, as they look to enjoy dazzling fireworks displays, in addition to other popular Fourth of July activities.
Fireworks were banned in many places due to extreme fire danger during an extended stretch of dry, very hot weather. Numerous record highs were reached in CA, AZ, NV and even up into OR. Temperatures in the deserts approaching the 120-degree mark and many readings were at least 100.
Philadelphia, PA (1776)
Thomas Jefferson paid for his first thermometer and signed the Declaration of Independence; weather at 1400 hours was cloudy, temperature 76 degrees, wind from the southwest.
New England (1911)
Record heat in New England... Boston, MA 104 degrees Lawrence, MA 106 degrees Vernon, VT 105 degrees, all-time record for state Nashua, NH 106 degrees