Wednesday, October 27, 2010

Record Low Pressure: October 26, 2010






Satellite Image and Surface maps of the strong low pressure system that created
all of the high winds on October 26, 2010.

New record set today for the lowest pressure in a non-tropical storm in the mainland U.S. The massive storm system barreling across the central U.S. had a minimum central pressure of 28.24" or 956 mb (equivalent to the minimum pressure of a Category 3 hurricane). This breaks the old record of 28.28" (958 mb), set on Jan. 26, 1978, during the Blizzard of 1978 (aka the Cleveland Sueprbomb). This is also lower than the March 1993 Superstrom (aka "The Storm of the Century"), or the "Witch of November" storm that sank the Edmund Fitzgerald in 1975, or even the Columbus Day Storm of Oct. 1962.Read the latest summary of the storm—including reports of peak wind gusts—from the NWS Hydrometeorological Prediction Center:

Monday, October 18, 2010

Global Warming Continues







Headline: NOAA: Year-to-Date Global Temperature Ties for Warmest on Record

The first nine months of 2010 tied with the same period in 1998 for the warmest combined land and ocean surface temperature on record. The global average land surface temperature for January-September was the second warmest on record, behind 2007. The global ocean surface temperature for January–September was also the second warmest on record, behind 1998.

The monthly analysis from NOAA’s National Climatic Data Center, which is based on records going back to 1880, is part of the suite of climate services NOAA provides government, business and community leaders, so they can make informed decisions.

Global Temperature Highlights
For the year-to-date, the global combined land and ocean surface temperature of 58.67 F (14.75 C) tied with 1998 as the warmest January-September period on record. This value is 1.17 F (0.65 C) above the 20th century average.

The combined global land and ocean average surface temperature for September 2010 tied with 1998 as the eighth warmest on record at 59.9 F (15.5 C), which is 0.90 F (0.50 C) above the 20th century average of 59.0 F (15.0 C).

Separately, the September global land surface temperature was 1.19 F (0.66 C) above the 20th century average of 53.6 F (12.0 C) — the ninth warmest September on record. Warmer-than-average conditions dominated the world’s land areas. The most prominent warmth was in western Alaska, most of the contiguous United States, eastern Canada, Greenland, the Middle East, eastern and central Europe, western and far eastern Russia and northeastern Asia. Cooler-than-average regions included much of Australia, western Canada, parts of the northern United States, parts of western and central Europe, and central Russia.

According to NOAA’s National Weather Service, Los Angeles set a new all-time maximum temperature on Sept. 27 when temperatures soared to 113 F (45 C), surpassing the previous record of 112 F (44.4 C) set in June 1990.

According to Australia’s Bureau of Meteorology, the country had its coolest maximum temperatures since 1984. The Northern Territory had its coolest September since 1984, and Western Australia and Victoria each recorded their lowest maximum temperatures since 1992. South Australia had its second-lowest maximum temperatures on record for September. Overall, though, the nation had overnight minimum temperatures that were 1.62 F (0.90 C) above average.

The worldwide ocean surface temperature was 0.79 F (0.44 C) above the 20th century average of 61.1 F (16.2 C) and the ninth warmest September on record. The warmth was most pronounced in the Atlantic Ocean and the western Pacific Ocean.

La Niña’s magnitude strengthened to moderate in September, as sea surface temperatures continued to drop across the central and eastern equatorial Pacific Ocean. La Niña episodes are typically associated with global temperatures that are cooler than recent trends, and this was the case for September 2010. According to NOAA’s Climate Prediction Center, La Niña is expected to strengthen and last at least into the Northern Hemisphere spring of 2011.

Sunday, October 17, 2010

September Global Temperature Anomalies


From NCDC:

Global Highlights
The combined global land and ocean surface temperature for September 2010 was 0.50°C (0.90°F) above the 20th century average of 15.0°C (59.0°F) and tied with 1998 as the eighth warmest on record. September 2005 is the warmest September on record.
The September worldwide land surface temperature was 0.66°C (1.19°F) above the 20th century average of 12.0°C (53.6°F)—the ninth warmest September on record.
The September worldwide ocean surface temperature was 0.44°C (0.79°F) above the 20th century average of 16.2°C (61.1°F) and tied with 1998 and 2008 as the ninth warmest September on record.


Friday, October 8, 2010

Summer Heat in Nebraska: October 8, 2010


Map: High temperatures on October 8, 2010

Headline: Record Highs today in

Lincoln (91 F); Omaha (90 F) , Norfolk (92 F) and Grand Island (90 F).

It’s not the latest ever high of 90 F or higher, however, but close!

Latest ever observed 90 F or higher for Lincoln is October 20 in 1947
Latest ever observed 90 F or higher for Norfolk is October 30 in 1950
Latest ever observed 90 F or higher for Omaha is October 29 in 1937
Latest ever observed 90 F or higher for Grand Island is October 28 in 1922

September U.S. Statewide Temperature Ranks




Headline: September 2010 averaged above normal for the U.S.

Temperature Highlights - September 2010 (From NCDC)
September was the fourth consecutive month with above average U.S. temperatures. The average temperature was 1.7°F above the long-term average.

Most states had above average temperatures, and several others had monthly temperature rankings among their top 10 warmest: Rhode Island (third warmest), New Mexico (fourth), New Jersey (fourth), Colorado (fifth), Massachusetts (sixth), Florida (seventh), Connecticut (seventh), New Hampshire (seventh) Arizona (ninth), and Maine (ninth). No state had an average temperature ranking in the top ten coolest.

Regionally, the Southwest climate region experienced its third warmest September on record. Only the East North Central climate region had below-normal temperatures.