tornados

State of the climate – August 2013

Even thought atmospheric carbon dioxide reached almost 400 ppmin May of this year, we see little evidence that it has produced any warming.  Although the press has been claiming that global warming is spawning extreme, usual weather, we see little evidence of that also.  Anthony Watts of WUWT blog has a review of real data showing the state of the climate (see his post here).   Below, I provide some highlights from that post.

The Arctic warmed above freezing later in the year than usual and has dropped (at least temporarily) below freezing earlier.  Arctic sea ice extent is higher for August than it has been in the last five years, although it is still below the 1979-2000 mean.  See the black line in the graph below:

Arctic-sea-ice-August-2013

“Antarctic sea ice extent at the end of July was the highest on record for that day, growing to 18.077 million sq km. The previous record of 17.783 was set in 2010, whilst the 1981-2010 average was 16.869.”

Antarctic-sea-ice-July-2013

For the year to date (August 9), the number of tornados is the lowest in the last 8 years.  See black line at bottom of graph:

Tornado-trend-200502013

Satellite temperature measurements of the lower troposphere show a slightly declining trend since the super El Nino in 1998.

UAH_LT_1979_thru_January_2014_v5.61

Surface temperatures as recorded by the British HADCRUT database of land and sea surface temperatures show a nearly flat trend since 1998.

Temp-land

The Rutgers University Global Snow Lab shows winter extent of snow cover in the northern hemisphere among the four highest since 1967.

Northern hemisphere winter snow

Even though we have had some devastating forest fires this year, the National Interagency Fire Center statistics show that compared to other years, 2013 has had the smallest number of fires and the second smallest number of acres burned to date since 2004.

Fires-to-date

Even though carbon dioxide has been rising in the atmosphere, we are seeing none of the predicted effects of global warming that it is supposed to produce.

See also:

Mystery of the missing heat

Map of tornado tracks in the US

The map below, compiled by John Nelson from NOAA data shows where tornados have occurred in the United States during the period 1950 through 2006. Each line tracks an individual tornado and the brightness of the color denotes strength.

tornado-tracks

 

The bar graph records the number of injuries (blue) and deaths (green). To get a better look at the map go to this link. There you will find a high-definition map that you can click to focus on specific areas. Check out the tornados in Arizona.

See the full story at WUWT here.

See also:

The Storm Over Tornadoes

Hurricane Frequency

Hurricanes and Global Warming

IPCC says they don’t know if the climate is becoming more extreme

Weather extremes and global warming – no increasing trend