UNITED STATES Climate Summary UNITED STATES Climate Summary April 2008

NOAA ^

[Bulwinkle]

The average temperature in April 2008 was 51.0 F. This was -1.0 F cooler than the 1901-2000 (20th century) average, the 29th coolest April in 114 years.

[Bulwinkle]

COOL!!!!!

[cardinal4]

I dont believe this article; My Durango is causing cyclones in Burma, and stats and models show warming and the potential flooding of Manhattan. Owl Bore said so..

[MNJohnnie]

Wow! NOAA actually finally admitting cooling. I guess their has to be a 1st time for everything.

[Bulwinkle]

the 29th coolest April in 114 years.

March 2008 was 42.2 F. This was -0.4 F cooler than the 1901-2000 (20th century) average, the 52nd coolest March in 114 years.

FEBRUARY: 62nd COOLIST February in 114 years.

JANUARY: the 49th coolest January in 114 years.

[TommyDale]

Al Gore says otherwise. Of course, since he buys carbon credits, his SUV and airplane have nothing to do with his ‘global warming’ theory, but you and I are totally to blame.

[sam_paine]

Subject: G3) How might global warming change hurricane intensity, frequency, and rainfall ?

Contributed by Chris Landsea

In November 2006 the global community of tropical cyclone researchers and forecasters as met at the 6^th International Workshop on Tropical Cyclones of the World Meteorological Organization in San Jose, Costa Rica. They released a statement on the links between anthropogenic (human-induced) climate change and tropical cyclones, including hurricanes and typhoons. The following is a summary of their report.

1. There have been a number of recent high-impact tropical cyclone events around the globe. These include 10 landfalling tropical cyclones in Japan in 2004, five tropical cyclones affecting the Cook Islands in a five-week period in 2005, Cyclone Gafilo in Madagascar in 2004, Cyclone Larry in Australia in 2006, Typhoon Saomai in China in 2006, and the extremely active 2004 and 2005 Atlantic tropical cyclone seasons - including the catastrophic socio-economic impact of Hurricane Katrina.
2. Some recent scientific articles have reported a large increase in tropical cyclone energy, numbers, and wind-speeds in some regions during the last few decades in association with warmer sea surface temperatures. Other studies report that changes in observational techniques and instrumentation are responsible for these increases.

Consensus Statements by International Workshop on Tropical Cyclones-VI (IWTC-VI) Participants :

1. Though there is evidence both for and against the existence of a detectable anthropogenic signal in the tropical cyclone climate record to date, no firm conclusion can be made on this point.
2. No individual tropical cyclone can be directly attributed to climate change.
3. The recent increase in societal impact from tropical cyclones has largely been caused by rising concentrations of population and infrastructure in coastal regions.
4. Tropical cyclone wind-speed monitoring has changed dramatically over the last few decades, leading to difficulties in determining accurate trends.
5. There is an observed multi-decadal variability of tropical cyclones in some regions whose causes, whether natural, anthropogenic or a combination, are currently being debated. This variability makes detecting any long-term trends in tropical cyclone activity difficult.
6. It is likely that some increase in tropical cyclone peak wind-speed and rainfall will occur if the climate continues to warm. Model studies and theory project a 3-5% increase in wind-speed per degree Celsius increase of tropical sea surface temperatures.
7. There is an inconsistency between the small changes in wind-speed projected by theory and modeling versus large changes reported by some observational studies.
8. Although recent climate model simulations project a decrease or no change in global tropical cyclone numbers in a warmer climate, there is low confidence in this projection. In addition, it is unknown how tropical cyclone tracks or areas of impact will change in the future.
9. Large regional variations exist in methods used to monitor tropical cyclones. Also, most regions have no measurements by instrumented aircraft. These significant limitations will continue to make detection of trends difficult.
10. If the projected rise in sea level due to global warming occurs, then the vulnerability to tropical cyclone storm surge flooding would increase.

A PDF version of the official report is available here.

---

Revised July 2, 2007

[JustDoItAlways]

Look at the cold water off the US west coast. This is the shift in the Pacific Decadal Oscillation (PDO) that researchers have been taking about recently.

This cold water has been there for about 15 months now and has recently strenthened. Historically, this pattern can lasts for years or decades, so get used to slightly cooler than normal weather in North America for awhile.

[Sprite518]

I love validation.

However, my communist sister tried to tell me while this maybe true in the USA its not true for the rest of the world. Do we have any proof on that?

[goodnesswins]

Tell me about it....we in Western Washington are suffering a VERY cool spring....10 degrees below normal, I’d bet....it’s NOT fun.

[Old North State]

Please everybody, read the memo, it’s not global warming anymore, it’s climate change.

[qam1]

Wow! NOAA actually finally admitting cooling. I guess their has to be a 1st time for everything.

I'm sure when the global temps come out James Hansen will have found a big heat wave in the parts of Asia which coincidently have few people and no surface temperature stations and somehow the satellites missed.

[MNJohnnie]

Intresting. They are doing actual measurements in the Antarctica and have discovered the models have been off as much as a full degree in their projections of ice melt

Odd isn't it how the observed data does not come any where near validation of any of the Warming crowds computer models?

[MNJohnnie]

It's open fishing this weekend in MN. Most of the lakes in the Northern part of the state still have ice on them causing the State DNR to warn crowing on lakes in the middle part of the state since people will not be able to fish on all the lakes nor have the public docks been put in on many northern lakes.

[qam1]

The April global temps are out for the UAH & RSS

Unlike the NOAA/GISS which use surface station data that's subject to "Hansenization" (see post 11), these readings are from Satellites

http://vortex.nsstc.uah.edu/public/msu/t2lt/tltglhmam_5.2

Global: +0.015
NH: + 0.170
SH: -0.140

http://www.remss.com/pub/msu/monthly_time_series/RSS_Monthly_MSU_AMSU_Channel_TLT_Anomalies_Land_and_Ocean_v03_1.txt

Global: +0.080
NH: +0.405
SH: -0.260

These numbers & the numbers at links, show that for the last six months all the so called Global Warming that has occured GLOBALLY in the past 29 years has essentially been wiped out.

[xcamel]

FReepmail me to get on or off
Click on POGW graphic for full GW rundown
Dr. John Ray's
GREENIE WATCH

The Great Global Warming Swindle Video - Back On The Net!!(Mash Here!)

---

[Robert A. Cook, PE]

This decline in temperatures is global.

Over the last ten years, from 1998 - 2008, there has been NO global warming.

For the last ten years, global temperatures have been declining from their El Nino-induced HIGH in 1998.

(Now, admit to her that the decline is small, about 1/10 of one degree, so overall the decade is about 2/10 of one degree hotter than it was from 1935 - 1945

[Constitutionalist Conservative]

This was -1.0 F cooler than the 1901-2000 (20th century) average

Wait. Minus one degree cooler, if I remember my arithmetic rules correctly, means one degree warmer. I'm confused. :-)

[steelyourfaith]

 

Reminder
This Sunday on C-Span 2: