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2012 May

Unprecedented May heat in Greenland; update on 2011 Greenland ice melt

The record books for Greenland's climate were re-written on Tuesday, when the mercury hit 24.8°C (76.6°F) at Narsarsuaq, Greenland, on the southern coast. This is the hottest temperature on record in Greenland for May, and is just 0.7°C (1.3°F) below the hottest temperature ever measured in Greenland. The unusual May heat has extended to Scotland, which had its hottest May temperature on record on May 25 at Achnagart: 29.3°C (85°F).

JeffMasters, • 2:53 PM GMT on May 31, 2012

Beryl headed out to sea

The center of Tropical Depression Beryl is close to the ocean again, and the storm has strengthened slightly in response. Beryl's heavy rain show will be focused on Eastern North Carolina today, where widespread rain amounts of 2 - 4 inches can be expected. Beryl's heaviest rains fell over Lafayette County, Florida, on Monday and Tuesday, where 12.65" was measured as of 6:30 am EDT Tuesday near Midway. Beryl spawned a single tornado on both Monday and Tuesday; these twisters did only minor damage.

JeffMasters, • 2:53 PM GMT on May 30, 2012

Beryl dumping heavy rains; all-time May heat records set in MI, OH

Tropical Depression Beryl continues to bring heavy rains to Northern Florida and Southern Georgia, but has begun to move northeast, and will be spreading heavy rains over coastal South Carolina today and North Carolina on Wednesday. Rains of 5 - 8 inches have been common over Northern Florida. These rains have caused numerous problems with street flooding, but no serious damage. The heaviest rains from Beryl were over Lafayette County, Florida, where 12.65" was measured.

JeffMasters, • 1:55 PM GMT on May 29, 2012

Beryl makes landfall, weakens to a tropical depression

Tropical Storm Beryl lumbered ashore near Jacksonville Beach, Florida at 12:10 am this Memorial Day as an intensifying tropical storm with 70 mph winds. Beryl is only the second named storm to hit on a Memorial Day weekend in the U.S. (the three-day weekend was established in 1971.) The other was Subtropical Storm Alpha of 1972, which followed a path almost identical to Beryl's and made landfall as a 60 mph subtropical storm.

JeffMasters, • 3:47 PM GMT on May 28, 2012

Beryl a little stronger, closes in on Southeast U.S. coast

The beach-going weather this Memorial Day weekend will to deteriorate rapidly this afternoon along the Southeast U.S. coast near the Florida/Georgia border, where Subtropical Storm Beryl is steadily closing in. A hurricane hunter aircraft found top surface winds near 60 mph in heavy thunderstorms to the northeast of Beryl's center at 9:15 am EDT this morning; top winds in the region to the southwest of the center were a little weaker, near 55 mph.

JeffMasters, • 3:21 PM GMT on May 27, 2012

Subtropical Storm Beryl forms

The second named storm of this unusually fast-starting 2012 Atlantic hurricane season is here. Subtropical Storm Beryl formed Friday night, a few hundred miles east of the South Carolina coast, from an area of disturbed weather that had moved from the Western Caribbean northeastward. Beryl's formation marks the first time since the hurricane season of 1908 that two Atlantic named storms have formed so early in the year.

JeffMasters, • 4:03 PM GMT on May 26, 2012

Bud the strongest Eastern Pacific hurricane so early in the year; 94L may develop

Category 2 Hurricane Bud is weakening, but still presents a formidable rainfall threat as it continues north-northeast towards an expected landfall between Manzanillo and Puerto Vallarta, Mexico late Friday night. Thursday night at 11 pm EDT, Bud peaked at Category 3 status, with 115 mph winds, becoming the earliest Category 3 hurricane on record in the Eastern Pacific.

JeffMasters, • 2:14 PM GMT on May 25, 2012

NOAA predicts a near-normal Atlantic hurricane season

NOAA forecasts a near-normal Atlantic hurricane season in 2012, with a 50% chance of a near-normal season, a 25% chance of an above-normal season, and a 25% chance of a below-normal season. They predict a 70% chance that there will be 9 - 15 named storms, 4 - 8 hurricanes, and 1 - 3 major hurricanes. If we take the midpoint of these numbers, NOAA is calling for 12 named storms, 6 hurricanes, and 2 major hurricanes. This is very close to the 1981 - 2010 average of 12 named storms, 6 hurricanes, and 3 major hurricanes.

JeffMasters, • 9:17 PM GMT on May 24, 2012

94L may develop this weekend; Hurricane Bud intensifies near Mexico

An area of disturbed weather (Invest 94L) over South Florida, Cuba, the Bahamas, and the Western Caribbean is bringing gusty winds heavy rains to the region. Miami is under an areal flood watch today for rains of 1 - 3 inches, and rains in excess of one inch have already fallen over Key Largo today. The disturbance is generating some impressive winds this morning along the Southeast Florida coast--Fowey Rocks recorded sustained southeast winds of 33 mph at 10am EDT.

JeffMasters, • 2:38 PM GMT on May 24, 2012

Invest 94L bringing heavy rains; Bud finally strengthening

An area of disturbed weather in the Western Caribbean is bringing heavy rains to the Cayman Islands and Central Cuba. This disturbance was designated Invest 94L by NHC this morning. The disturbance is under a high 30 - 40 knots wind shear, and 94L will have a tough time developing in the face of such high wind shear.

JeffMasters, • 1:31 PM GMT on May 23, 2012

Bud a heavy rain threat for Mexico; 1-year anniversary of Joplin tornado

Tropical Storm Bud intensified into a 40 mph storm this morning in the Eastern Pacific, off the coast of Mexico, and poses a significant flooding threat to the country late this week. The storm has been slow to organize due to its large size, as seen on satellite loops. Bud should steadily organize today and Wednesday, and become Hurricane Bud by Thursday.

JeffMasters, • 11:07 AM GMT on May 22, 2012

Alberto headed away from land; TD 2-E a concern for Mexico

Tropical Storm Alberto continues to struggle against strong upper level winds out of the west-southwest that are creating a very high 40 knots of wind shear over the storm. These winds are driving dry, continental air into Alberto, keeping its heavy thunderstorm activity quite limited. A more significant storm is newly-formed Tropical Depression 2-E in the Eastern Pacific, off the coast of Mexico. TD 2-E should steadily organize on Tuesday and Wednesday, and become Hurricane Bud by Thursday.

JeffMasters, • 2:07 PM GMT on May 21, 2012

Alberto weakens, brings light rains to Georgia and South Carolina

Tropical Storm Alberto continues to move slowly to the west-southwest off the coast of South Carolina, and is bringing light rains to the coasts northern Georgia and southern South Carolina. Recent radar and satellite loops show that Alberto has weakened late this morning, and has lost most of its heavy thunderstorms. Upper level winds are driving dry air into the storm, which has caused it to deteriorate.

JeffMasters, • 3:31 PM GMT on May 20, 2012

Tropical Storm Alberto forms off the South Carolina coast

The first named storm of the 2012 Atlantic hurricane season is here, as Tropical Storm Alberto has formed off the coast of South Carolina--a little going-away present for outgoing NHC director Bill Read, who retires on June 1! Alberto has the potential to hit North Carolina as early as Monday, but since the storm is so small, it would only affect a small area of the coast with high winds and heavy rain.

JeffMasters, • 9:41 PM GMT on May 19, 2012

Disturbance 93L off South Carolina coast could become a tropical storm

A hybrid low pressure system with both tropical and extratropical characteristics has formed in the waters off the coast of South Carolina, about 120 miles southeast of Myrtle Beach. Residents along the South Carolina and North Carolina coast should pay attention to 93L, as it has the potential to strengthen into a tropical storm and hit the coast on Sunday or Monday, with North Carolina at highest risk.

JeffMasters, • 5:11 PM GMT on May 19, 2012

April 2012: Earth's 5th warmest on record

April 2012 was the globe's 5th warmest April on record, according to the National Oceanic and Atmospheric Administration's National Climatic Data Center (NCDC). April 2012 global land temperatures were the 2nd warmest on record, and the Northern Hemisphere land surface temperatures were the warmest since records began in 1880. Global ocean temperatures were the 11th warmest on record. April 2012 was the 427th consecutive month with ocean temperatures warmer than the 20th century average.

JeffMasters, • 12:00 PM GMT on May 18, 2012

The Hockey Stick and the Climate Wars: a book review

No climate scientist has been subject to more attacks on their science and character than Penn State's Michael Mann, originator of the famed "hockey stick" graph of Earth's temperature history. Dr. Mann has an excellent new book called "The Hockey Stick and the Climate Wars: Dispatches from the Front Lines" that takes the reader on a fascinating journey to the front lines the high-stakes battles between climate scientists and their detractors.

JeffMasters, • 12:48 PM GMT on May 16, 2012

Aletta's formation in Eastern Pacific ends Earth's 41-day tropical cyclone drought

The first Eastern Pacific tropical storm of the 2012 hurricane season is Tropical Storm Aletta, located about 650 mi south-southwest of Manzanillo Mexico. Aletta was named at 03 UTC May 15, right at the official May 15 beginning of the Eastern Pacific hurricane season. The storm is headed west-northwest away from Mexico, and will not trouble any land areas. The formation of Aletta ends a 41-day streak without a tropical storm anywhere in the world, the longest such streak in at least 70 years.

JeffMasters, • 1:07 PM GMT on May 15, 2012

Azores storm 92L unlikely to develop; East Pacific hurricane season begins

The hybrid low pressure system with both tropical and extratropical characteristics that formed Saturday over the far Eastern Atlantic, about 450 miles southwest of the southern Azores Islands (Invest 92L), has weakened considerably, and is unlikely to become Subtropical Storm Alberto. Wind shear has increased to a very high 25 - 40 knots over 92L today, causing a marked deterioration of the heavy thunderstorm activity. Also not helping is the fact 92L is over cold ocean waters of 68°F (20°C.)

JeffMasters, • 1:24 PM GMT on May 14, 2012

Azores storm could become Subtropical Storm Alberto

An interesting and surprising hybrid low pressure system with both tropical and extratropical characteristics has formed over the far Eastern Atlantic, about 400 miles southwest of the southern Azores Islands. This low, designated Invest 92L by NHC today, has developed an impressive amount of heavy thunderstorm activity near its center, despite the fact that it is over cold ocean waters with temperatures of 66°F (19°C.) This is well below the 26°C usually needed for a tropical storm to form.

JeffMasters, • 7:56 PM GMT on May 12, 2012

2nd billion-dollar weather disaster of 2012: April 3 severe weather in Texas

The U.S. suffered its 2nd billion-dollar weather disaster of 2012 on April 3, when a massive hailstorm and 21 tornadoes hit the Dallas/Fort Worth, Texas region. Damage was $1 billion. The tornado outbreak included one EF-3 twister, which hit Forney, Texas. A severe hailstorm during the outbreak hit the DFW airport, damaging over 100 airplanes, and forcing the temporary closure of the airport. The other billion-dollar weather disaster of 2012 was the March 2 - 3 tornado outbreak in the Midwest and Southeast.

JeffMasters, • 2:09 PM GMT on May 11, 2012

U.S. experiences warmest 12-month period on record

The past twelve months were the warmest twelve months in U.S. history, said NOAA on Tuesday. Temperatures in the contiguous U.S. during May 2011 - April 2012 broke the previous record for warmest 12-month period, set November 1999 - October 2000, by 0.1°F. The past twelve months have featured America's 2nd warmest summer, 4th warmest winter, and warmest March on record. The January - April 2012 period was also the warmest such period since record keeping began in 1895.

JeffMasters, • 6:09 PM GMT on May 08, 2012

Rare Japanese tornado kills 1, injures 48

A rare strong tornado ripped through Ibaraki Prefecture in eastern Japan 30 miles northeast of Tokyo on Sunday, killing a teenage boy, injuring 48 people, and damaging or destroying 890 buildings. The tornado carved a path of destruction 15 km long and 500 meters wide, said the Japan Meteorological Agency. The tornado was given a preliminary rating of F-2, with winds of 113 - 157 mph.

JeffMasters, • 1:28 PM GMT on May 07, 2012

Photos from Climate Impacts Day

On Saturday, May 5, the activist group 350.org, founded by Bill McKibben, launched a new effort to "connect the dots between climate change and extreme weather." They declared May 5 Climate Impacts Day, and coordinated an impressive global effort of nearly 1,000 events in 100 countries to draw attention to the links between climate change and extreme weather.

JeffMasters, • 2:06 PM GMT on May 06, 2012

Connecting the dots between climate change and extreme weather

On Saturday, May 5, the activist group 350.org, founded by Bill McKibben, is launching a new effort to "connect the dots between climate change and extreme weather." They've declared May 5 Climate Impacts Day, and have coordinated an impressive global effort of nearly 1,000 events in 100 countries to draw attention to the links between climate change and extreme weather.

JeffMasters, • 3:15 PM GMT on May 04, 2012

Hurricane Irene of 2011 now rated history's 6th most damaging hurricane

New damage estimates released last month by NOAA now place the damage from 2011's Hurricane Irene at $15.8 billion, making the storm the 6th costliest hurricane and 10th costliest weather-related disaster in U.S. history. Irene is now rated as the most expensive Category 1 hurricane to hit the U.S. The previous record was held by Hurricane Agnes of 1972, whose floods did $11.8 billion in damage in the Northeast U.S.

JeffMasters, • 1:33 PM GMT on May 03, 2012

Tornado hits France; unprecedented April heat in Europe

A rare EF-1 tornado with 73 - 112 mph winds (117 - 180 kph) hit Toulouse, France on Sunday, causing minor damage that included collapsed walls, uprooted trees, and cars moved out of place. The tornado touched down 15 - 20 km south of Toulouse at 7:10 pm local time. This was the first tornado in France in 2012; only 3 tornadoes hit the country in 2011.

JeffMasters, • 12:44 PM GMT on May 01, 2012