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Sea Ice Extent Is Near Record Lows--South as Well as North

Dr. Jeff Masters, Ottobre 26, 2016

Director of Meteorology, Weather Underground

Sea ice is at a record-low extent for late October in the Arctic and close to a record low in the Antarctic. The latter is a big change from unusually high extents in recent years. The global total of sea ice (Arctic plus Antarctic] is more than 1 million square kilometers below the previous record for late October.

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An Investigation of Death Valley’s 134°F World Temperature Record

Christopher C. Burt, Ottobre 24, 2016

Weather Historian, Weather Underground

In 2012 the WMO (World Meteorological Organization) disallowed what had long been considered the hottest air temperature ever measured on Earth: a 58.0°C (136.4°F) reading measured at El Azizia, Libya on September 13, 1922. As a result of this record being struck from the books, the temperature of 134°F (56.7°C) recorded at Greenland Ranch at Furnace Creek in Death Valley, California on July 10, 1913 became, by default, the new world’s hottest air temperature yet measured. In this guest blog we will investigate the credibility of that measurement. This blog is courtesy of William T. Reid, a geographer and climatologist who has been studying the desert climate of California and, in particular, the Death Valley temperature record for some 30 years. Mr. Reid and I worked together to come to a commensurate conclusion regarding the validity of this significant planetary weather record: It is possible to demonstrate that a temperature of 134°F in Death Valley on July 10, 1913, was essentially not possible from a meteorological perspective, using an officially sanctioned USWB shelter and thermometer and following proper procedures observationally. Thus, the best explanation for the record high report(s) in July 1913 is observer error.

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Blog metereologici


Steve Gregory, Ottobre 24, 2016

Sr. Forecaster/Risk Analysis, Weather Intel Services


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The Making of a Flood

Dr. Marshall Shepherd, Ottobre 21, 2016

2013 President, American Meteorological Society
Director of Atmospheric Sciences, Univ. of Georgia

Say it with me,

Flooding, Flooding, Flooding........Flooding, Flooding.........Flooding

It doesn't matter how many times we say it, it doesn't evoke the same "umph or fear" that ...

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Waving the White Flag: I Surrender

Lee Grenci, Ottobre 16, 2016

Retired Senior Lecturer and Forecaster, The Pennsylvania State University

All of my professional career, I have lobbied for the temperature, 32 degrees Fahrenheit, to be called the melting point of ice. Perhaps it was the stubbornness of youth that made me so insistent. As ...

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Southern Illinois University (SIU) Physical Plant Services

Kari Strenfel, Ottobre 12, 2016

Meteorologist, Weather Underground

Carbondale, Illinois

With about 17,000 students, Southern Illinois University (SIU) is classified as a Carnegie Foundation High Research Activity Institution and is ranked among...

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In Hurricane Matthew's wake

Portlight, Ottobre 7, 2016

Disaster Relief Organization

Portlight is serving the needs of people with disabilities who will be impacted by hurricane Matthew.

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First Rain of the Season for Southern California

Zachary Labe, Settembre 13, 2015

Northeast Weather Analyst

The remnants of Hurricane Linda will track toward southern California in addition to a deepening trough. This will allow for a moist, upslope flow to provide the first widespread rain of the fall season across the region.

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