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National: Hot conditions returning to Midwest

7:04 PM, Aug 24, 2013   |    comments
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Hot conditions spread across the northern Plains and upper Midwest, heavy rains with flooding moved into the desert Southwest, and heavy rainfall persisted along the Gulf shores on Saturday. 


Tropical Storm Ivo is now located about 240 miles west of Cabo San Lucas, Mexico, and continued moving northward, spreading abundant moisture into Baja California. Tropical storm advisories have been issued for most of the peninsula as heavy rainfall and strong winds have developed on Saturday. Flow around this system even pushed moisture northward into the Southwestern U.S., aiding in the development of heavy rainfall with shower and thunderstorm activity. 

Flood warnings and advisories have been issued across Southern California, Arizona, and into southern Nevada. Heaviest rainfall was reported at Phoenix Deer Valley, Ariz., with a midday total of 0.85 inches of rain. Due to the dry surface conditions of the deserts, heavy rainfall is more difficult to soak into the ground and commonly results in flash flooding.


In the South an area of low pressure spinning in the northern Gulf of Mexico continued pushing heavy rainfall into the surrounding coasts. Heaviest rainfall was reported at Daytona Beach, Fla., with a midday total of 1.08 inches of rain.

In the nation's midsection, a low pressure system moved off the Rockies and into the Plains, while pushing a warm front northward over the northern Plains and upper Midwest. This allowed for scattered showers and thunderstorms to move into the region, but also brought hot temperatures to the region. High heat advisories have been issued from the Dakotas through southern Minnesota and Wisconsin as high temperatures ranged in the 90s, which is about 10 to 15 degrees above normal.


SATURDAY'S WEATHER EXTREMES:

HIGHEST TEMPERATURE (DEGREES F).........................100 McGregor, Texas

HIGHEST HEAT INDEX (DEGREES F)..........................112 Shawnee, Okla.

LOWEST TEMPERATURE (DEGREES F)..........................32 Truckee-Tahoe, Calif.

LOWEST WIND CHILL (DEGREES F)...........................21 Anaktuvuk Pass, Alaska

HIGHEST WIND GUST (MPH).................................48 Needles, Calif.

HIGHEST PRECIPITATION (INCHES)..........................1.08 Daytona Beach, Fla.


ON THIS DATE....... Hurricane Andrew came ashore on this date in 1992 with the third lowest pressure ever recorded (922 mb) for a landfalling hurricane. The storm caused $35 billion in damage (some estimates range upwards to $40 billion). Andrew made landfall near Homestead AFB and completely wiped the base off the face of the Earth.


The Associated Press

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