RSS feed source: US National Weather Service

SVRLZK The National Weather Service in Little Rock has issued a * Severe Thunderstorm Warning for… Northeastern Logan County in western Arkansas… Southeastern Johnson County in western Arkansas… Western Van Buren County in north central Arkansas… Northeastern Conway County in central Arkansas… North central Yell County in central Arkansas… Pope County in central Arkansas… * Until 215 PM CDT. * At 123 PM CDT, a severe thunderstorm was located over Piney in Garland County, or 10 miles west of Russellville, moving east at 70 mph. HAZARD…60 mph wind gusts and quarter size hail. SOURCE…Radar indicated. IMPACT…Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations

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RSS feed source: US National Weather Service

Satellite and surface observations show a plume of smoke is lowering visibilities and producing hazy conditions across parts of Bryan and Chatham Counties this afternoon. This includes portions of the Savannah Metro Area. The smoke is being generated by a prescribed burn near Fort Stewart and is expected to dissipate by early this evening as winds turn more southerly with the passage of the sea breeze. Some locations that be impacted include Bloomingdale, Pooler and Garden City.

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RSS feed source: US National Weather Service

* WHAT…West winds 30 to 40 mph with gusts up to 60 mph. * WHERE…South Laramie Range and Foothills including the Interstate 80 Summit between Cheyenne and Laramie. * WHEN…Until 4 PM MDT this afternoon. * IMPACTS…Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers.

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RSS feed source: US National Weather Service

Background:

Volcán Popocatépetl, whose name is the Aztec word for smoking mountain, towers to 5426 m 70 km SE of Mexico City to form North America’s 2nd-highest volcano.  The glacier-clad stratovolcano contains a steep-walled, 250-450 m deep crater.  The generally symmetrical volcano is modified by the sharp-peaked Ventorrillo on the NW, a remnant of an earlier volcano. 
At least three previous major cones were destroyed by gravitational failure during the Pleistocene, producing massive debris-avalanche deposits covering broad areas south of the volcano.  The modern volcano was constructed to the south of the late-Pleistocene to Holocene El Fraile cone.  Three major plinian eruptions, the most recent of which took place about 800 AD, have occurred from Popocatépetl since the mid Holocene, accompanied by pyroclastic flows and voluminous lahars that swept basins below the volcano.  Frequent historical eruptions, first recorded in Aztec codices, have occurred since precolumbian

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