Globe has 1st or 2nd warmest March on record; El Niño fades to weak category
The globe recorded its warmest March since record keeping began in 1880, according to the National Oceanic and Atmospheric Administration's (NOAA's) National Climatic Data Center. The March temperature anomaly of 0.77°C (1.39°F) beat the previous record set in 2002 by 0.03°C. The last time the globe had a record warmest month was in January 2007 (according to NOAA) or in November 2009 (according to NASA). NASA's Goddard Institute for Space Studies rated March 2010 the second warmest March on record, 0.01°C behind the record set in 2002. The year-to-date period, January - March, is the 4th warmest such period on record, according to NOAA, and the warmest on record, according to NASA. March 2010 global ocean temperatures were the warmest on record, while land temperatures were the 4th warmest. Global satellite-measured temperatures for the lowest 8 km of the atmosphere were the warmest on record in March, according to both the University of Alabama Huntsville (UAH) and Remote Sensing Systems (RSS) groups. The March temperature anomaly of 0.66°C was the third highest monthly anomaly on record, behind the 0.76°C anomalies measured in February and April of 1998.
For those interested, NCDC has a page of notable weather highlights from March 2010.

Figure 1. Departure of temperature from average for March 2010. Image credit: NOAA National Climatic Data Center.
A warm March for the U.S.
For the contiguous U.S., it was the 32nd warmest March in the 116-year record, according to the National Climatic Data Center. For the third month in a row, Florida was the coldest state, relative to average. It was Florida's 4th coldest March. No other state had a top-ten coldest March. Rhode Island had its warmest March on record, and thirteen other states had a top-ten warmest March, including all of New England, plus Michigan, Wisconsin, Minnesota, and Montana.
U.S. precipitation and drought
For the contiguous U.S., March 2010 ranked as the 35th driest in the 116-year record. Michigan, Wisconsin, and Montana recorded a top-ten driest March. However, all-time March precipitation records were set in Massachusetts, New Jersey, and Rhode Island. New Hampshire and Connecticut each had a top-five wettest March. At the end of March, 2.0% of the contiguous United States was in severe-to-exceptional drought. This is the lowest March drought footprint in the U.S. in the past ten years.

Figure 2. Computer model forecasts of El Niño/La Niña made in April. The forecasts that go above the red line at +0.5°C denote El Niño conditions; -0.5°C to +0.5°C denote neutral conditions, and below -0.5°C denote La Niña conditions. No computer models predict El Niño conditions and six predict La Niña for the upcoming hurricane season (ASO, August-September-October). The rest of the models predict neutral conditions. Image credit: Columbia University's IRI.
El Niño fades from moderate to weak
El Niño slowly weakened during late March and early April, and El Niño conditions crossed the threshold from moderate to weak during the past two weeks. Sea surface temperatures over the tropical Eastern Pacific in the area 5°N - 5°S, 120°W - 170°W, also called the "Niña 3.4 region", were at 0.83°C above average on April 11, which is just below the 1.0°C threshold to be considered a moderate El Niño, according to the Australian Bureau of Meteorology. Anomalously strong westerly winds along the Equator that had helped maintain the current El Niño slackened in late March, and winds are now near average over the Equatorial Pacific. It now appears very likely that El Niño will be gone by hurricane season. None of the sixteen El Niño models (updated as of April 15) are predicting El Niño will be around during the height of hurricane season (August-September-October); six are predicting La Niña conditions for hurricane season. The expected demise of El Niño, coupled with sea surface temperatures in the tropical Atlantic that are currently at record levels, have prompted two major hurricane forecasting groups (tropicalstormrisk.com and Colorado State University) to predict a well-above average 2010 Atlantic hurricane season.
March sea ice extent in the Arctic 5th lowest on record
March 2010 Northern Hemisphere sea ice extent was the 5th lowest since satellite measurements began in 1979. Ice extent was lower than in 2009 and 2008, but greater than in 2004, 2005, 2006, and 2007, according to the National Snow and Ice Data Center (NSIDC). The weather pattern over the Arctic during much of March 2010 featured a strongly negative Arctic Oscillation (AO). This pattern tends to slow the winds that typically flush large amounts of sea ice out of the Arctic between Greenland and Iceland, and the Arctic lost less ice this winter compared to the previous few years. The larger amount of multi-year ice could help more ice to survive the summer melt season. However, this replenishment consists primarily of younger, two- to three-year-old multi-year ice; the thickest ice more than three years old has continued to decline.
Iceland's Eyjafjallajökull volcano continues to disrupt European air travel
The Eyjafjallajökull volcano on Iceland erupted Wednesday, sending a towering cloud of volcanic ash 6 - 11 km (20,000 - 36,000') high in the air from its 1666 meter (5500') high peak. The ash cloud continues to cause a dramatic interruption of air traffic over much of northern Europe today, and this disruption will spread southwards and eastwards as the ash cloud gradually spreads and disperses. For the latest forecasts of where the ash cloud is expected to go, consult the UKMET Office. The Norwegian Institute for Air Research runs a computer trajectory model called FLEXPART that has longer, 3-day forecasts. The FLEXPART model shows that ash will continue to be a problem for much of Europe through Tuesday. Spain and Portugal look like the best bet to have airports that will stay open. An excellent source of links of information on the eruption is available at http://islande2010.mbnet.fr/2010/04/eyjafjallajok ul-links-liens-a-propos-de-leyjafjallajokul/. My post on Thursday discusses the likely non-impact of this eruption on Earth's climate.

Figure 3. Forecast extent of the plume from the Iceland volcano with the unpronounceable name. Forecast was made at 17 UTC Saturday, April 17, 2010, and is valid for 12 UTC Tuesday, April 20, 2010. Image credit: Norwegian Institute for Air Research.
Jeff Masters
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ya but ya missed scary shary
dawn breaking over land of fire and ice toggle to full screen by right clicking mouse over image then select full screen exit full screen click Esc key
Any opportunity to watch a Bastardi video, is an opportunity I will grab at, cause he is so entertaining! I don't disagree with his ideas of an active season, but for that matter, who doesn't (here or otherwise). Mean time, the best effort he made at forecasting this year's potential landfalls was when he drew that big yellow circle over FL and the Gulf. Otherwise, he showed a lot of maps and charts, posted some entertaining discussion, but never made a solid connection. For starters, if he was trying to make a point of a return cycle for the '38 hurricane, well, his arguement was very weak, as he never discussed the climate of that specific era.
this is a view from closer up Link
The volcanic ash cloud that exploded from an Icelandic volcano this week is not expected to have an impact on global temperatures, says an Australian climatologist.
The volcano, located under the Eyjafjallajokull glacier, erupted on Thursday producing a 10-kilometre high plume of ash and rock that has extended across most of northern Europe.
The debris has caused the closure of airports in the UK, Norway, Denmark, Belgium and Sweden, and produced spectacular sunsets in the region.
While the particles may have an effect on local temperatures in the short-term, experts don't believe it will have the same impact as the Pinatubo eruption two decades earlier.
In June 1991, Mount Pinatubo, an active volcano in the Philippines, launched ten cubic kilometres of material into the atmosphere.
Particles from the eruption entered the Earth's stratosphere resulting in a 10% reduction in sunlight reaching the Earth's surface, and a 0.4C drop in global average temperatures.
Dr Blair Trewin of the National Climate Centre in Melbourne says, in its current form the ash cloud is unlikely to have the same impact on global temperatures.
"For a volcano to have a significant global cooling effect it has to get its ash up into the stratosphere," he says. "If it doesn't, the ash will get rained out fairly quickly."
Even if the material reaches the stratosphere, Trewin believes the volcano's location will result in the ash staying in the northern hemisphere.
"Once you're in the stratosphere the winds tend to flow out from the equator to the poles," he says. "So if you get a big eruption in the tropics the winds in the stratosphere will tend to spread out material over the whole globe.
"Whereas if it happens in the polar regions the stuff tends to get stuck - it doesn't spread up to lower latitudes."
But Trewin says the volcanic ash cloud may have an impact locally.
"When Mount St Helens erupted in 1980 it had no significant global impacts, but in the days immediately after the eruption you had cooling of daylight temperatures by 10C or more in some parts of the northwestern United States."
Dr Jeff Masters, Director of Meteorology at Weather Underground says the eruption isn't expected to have a significant impact on weather patterns in the northern hemisphere.
"However, the ash could bring spectacular sunsets to Europe over the next week, and to North America by sometime next week, as the jet stream wraps the ash cloud eastwards across the northern hemisphere."
ABC 2010
AIRLINES warn that Europe-bound flights from Australia could be delayed up to a week by the vast cloud of volcanic ash blanketing most of the continent.
About 2000 Qantas customers in Asian ports are being given the option of onward flights to other destinations or flights back to Australia.
The national carrier estimates 8000 Qantas customers have been impacted by the eruption, while about 100 international passengers stranded in Australia are being accommodated in Sydney hotels.
Mr Epstein said five daily flights usually bound for Europe today would proceed to Asian stopovers but not to onward destinations.
"It's a question of making a judgment not just when the airspace is open but when the airports are actually capable of taking our flights in and out in a way that doesn't disrupt passengers too much."
The backlog of customers would be accommodated as much as possible, Mr Epstein said, including flexibility with fares and rescheduling.
Qantas' meteorological unit tracks volcanic activity 24 hours a day, Mr Epstein said.
"It's best to put safety before schedule and where there's any question of volcanic ash being in the air we would prefer to take the safe approach rather than risk it to get flights in."
The Air Transport Association in Geneva estimates the current cost of the eruption to major airlines at around $US200 million ($214 million) each day.
An Emirates spokesperson said passengers were urged not to go to airports before establishing the status of their flights.
"Emirates is keeping its flying schedule under constant review and will aim to give customers as much notice as possible once more information is received from European Air Traffic Control authorities," the spokesperson said.
Singapore Airlines spokeswoman Susan Bredow told AAP all passengers stranded in Singapore would be brought home free of charge.
"We're going to bring everyone home as soon as as possible," she said.
Flights started bringing passengers back to Australia on Saturday and passengers were being re-booked with a five-day delay anticipated.
17 hours...
9 minutes...til June 1st.
cuckoo, cuckooo, what color is the sky in your world?
mmmmmmmmmm!!! could be interesting.
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
230 AM EDT SAT APR 17 2010
.SHORT TERM (TODAY-MONDAY)...SURFACE HIGH PRESSURE WILL HOLD OVER
WEST CENTRAL AND SOUTHWEST FLORIDA TODAY WITH A STRONG MID LEVEL
SUBSIDENCE INVERSION PERSISTING OVER THE AREA. THIS WILL CAP
CONVECTION WITH A SLIGHT CHANCE OF AN AFTERNOON SHOWER DEVELOPING
BELOW THE INVERSION OVER THE CENTRAL AND SOUTHERN FORECAST AREA.
W/V IMAGERY SHOWS AN U/L TROUGH OVER THE SOUTHWEST GULF OF MEXICO
WITH ADDITIONAL SHORT WAVE ENERGY ENTERING THE TROUGH FROM THE
EASTERN PACIFIC ON STRONG SUBTROPICAL SOUTHERN STREAM FLOW. THIS
SHOULD ALSO PROVIDE A TROPICAL CONNECTION INTO THE SYSTEM. THE U/L
TROUGH WILL GRADUALLY LIFT NORTHEAST TOWARD FLORIDA TONIGHT AND
SUNDAY WITH INCREASING DEEP LAYER MOISTURE AND INSTABILITY.
ALTHOUGH GFS MAY BE OVERDONE DEVELOPING A CLOSED LOW OVER THE
SOUTHEAST GULF...COMBINATION OF U/L ENERGY AND DEEP TROPICAL
MOISTURE WILL GENERATE NUMEROUS SHOWERS AND THUNDERSTORMS OVER THE
SOUTHEAST GULF OF MEXICO TONIGHT WHICH WILL ADVECT OVER WEST CENTRAL
AND SOUTHWEST FLORIDA SUNDAY AND SUNDAY NIGHT. GIVEN TROPICAL
CONNECTION...LOCALLY HEAVY RAIN IS POSSIBLE. CHANCE OF SHOWERS WILL
CONTINUE ON MONDAY AS U/L TROUGHING WILL PERSIST OVER THE EASTERN
GULF OF MEXICO WITH WEAK U/L SHORT WAVE ENERGY MOVING ACROSS THE
FORECAST AREA.
Link
An incredibly lovely morning here. No smoke, dust, heat, just clear blue sky with puffy cloud and good visibility, birdsong and a feeling that we have had all the rain we are going to get for a while. Got 3/8" over the past 2-3 days.
So I am going to enjoy the moment, have another cup of coffee, and see what happens next.
Being optimistic here........
Ike, I am really surprised at the wording there. They have increased our pops a little, from 20% to 40%. My local mets are so conservative, I think they live far, far away.
seeing a slight increase in pops further down the peninsula. Nothing to raise an eyebrow over...not yet, anyway.
No consolidation, plenty shear, disorganized mess.
This near you?
Link
I've now got a 20% chance Monday and Tuesday...30% Monday night.
Need some badly here..only .09 since March 26th. Pollen is killing me.
Ike- our pollen has almost gone...but the dryness just enhances it in your area, all those oaks. Live oaks, I'm guessing.
Lots of em.
Trying to wait on mowing my yard til it rains and settles the dust.
Good Evening to you aquak9, doing fine, back isn't as bad as its been the past few days. Might even go for a shower later, haven't been since wednesday, it's almost sunday here, I'm smelling a bit. How's your coffee, I'm having a hot cuppa tea at the moment while watching the soccer from the UK and conversing with my cousin in Scotland via facebook. I'm also watching the live cam from Iceland
But all people, who are not forced to wait at the airports, enjoy very nice, sunny days in Germany, including me.
Webcams to the dragon in iceland (clear sight today) seems to be owercrowed.
But here are some nice video-links (youtube), torn from the eruptions blog
sunset eijaf 16-4-10 http://www.youtube.com/watch?v=r-LbDZBf_MM
good morning eijaf 17-4-10 http://www.youtube.com/watch?v=Cp4n6zeVzII
GOM visible...
ike- I wouldn't be surprised to see hurricanecrab here soon...he's on cayman brac. Paloma tore them up.
63.1 outside my window...partly sunny with fog.
Always at your service, aquak. Thanks.
Now
64.4°F falling
Updated at 22:30 EST
Glad to see much needed rain heading to the Cayman Islands.
Morning from London. There where some pryoclastic flows on this webcam recently.
Link
I'm drinking Chinese green tea.
I won't see 36 for 7-8 months. Everything has bloomed out here.
Looking at the GOM blob, maybe I'll get some needed rain. Take anything.
My coffee steamed at your mere mention of 36º. I think I sprouted a few more grey hairs, too.
Got about a laundry basket of lettuce to go pick. Hope my neighbors are in the mood for salad..
ya'll enjoy the day! :)
Watching this I suppose we can mothball our european planes for quite a long time ...
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