Recordtemperaturen US

Bericht van: Wouter (Mol) , 09-10-2007 16:39 

Bron: Jeff Masters, wunderground.com

Temperaturen in zijn tekst zijn in Fahrenheit.

Record heat, record cold
Unprecedented heat cooked the eastern half of the U.S. during the first week of October--but record cold temperatures affected some regions of the West, as well. On Sunday October 7, and Monday October 8, hundreds of daily high temperature records were set, and many stations recorded their hottest October temperature ever (or their highest temperature so late in the year). Among these hottest ever October records:

Bluefield, VA 88
Beckley, WV 86
Memphis, TN 95
New York City, NY (Kennedy Airport) 90
South Bend, IN 89
Fort Wayne, IN 89
Indianapolis, IN 91
Jackson, KY 88
London, KY 92
Detroit, MI 90
Alpena, MI 90
Saginaw, MI 90

The heat brought an early end to the Chicago Marathon on Sunday, which was halted after the 88-degree heat sent 49 runners to the hospital. Emergency vehicles made 300 calls along the race course.


Figure 1. Departure of maximum temperature from average for Monday, October 7. Image credit: National Climatic Data Center.

Temperatures have averaged over 30 degrees above normal in some regions of the country the past week (Figure 1). On the other side of the country, though, record daily low temperatures have been recorded at a few locations in Arizona and Utah this week. The jet stream is to blame for the record heat and record cold--a sharp kink in the jet has put a persistent trough of low pressure over the Western U.S. and a ridge of high pressure over the Eastern U.S. Beginning today, this kink is expected to straighten out some, resulting in far fewer temperature extremes across the country.

Jeff Masters

Bericht laatst bijgewerkt: 09-10-2007 16:40