Summer in March continued for the eighth day yesterday, toppling dozens of records for hottest March day in both the U.S. and Canada. Nearly every major airport in Michigan's Lower Peninsula tied or set records for their hottest March temperature, incl...

A significant flood event is underway in Eastern Oklahoma, where widespread rainfall amounts of 3 to 5 inches have fallen since yesterday. Up to four more inches of rain is likely today, and the National Weather Service in Tulsa is warning of the poten...

Widespread and potentially catastrophic areal flooding and river flooding is expected this afternoon through Wednesday morning in Eastern Oklahoma, Western Arkansas, Western Louisiana, and Southwest Missouri, warns the National Weather Service in Tulsa...

For the third consecutive day, Chicago, Illinois hit their warmest temperature on record so early in the year, going back to 1872. The mercury hit 82°F, giving the city its third consecutive day of 80°+ temperatures, smashing the old record by a mont...

As I stepped out of my front door into the pre-dawn darkness from my home near Ann Arbor, Michigan yesterday morning, I braced myself for the cold shock of a mid-March morning. It didn't come. A warm, murky atmosphere, with temperatures in the upper fi...

The first day of spring doesn't arrive until Tuesday, but Mother Nature has fast-forwarded past spring and gone straight to summer over the Midwest. Yesterday, large portions of Michigan, Illinois, Wisconsin, Minnesota, and Indiana recorded their all-t...

A highly unusual week-long heat wave is building over much of the U.S., and promises to bring the warmest temperatures ever seen so early in year to a large portion of the Midwest. The exceptional heat will also be exceptionally long-lasting: record-br...

The deadly early-season tornado outbreak of March 2 - 3 that hit Indiana, Kentucky, and surrounding states, killing 41 people, may have been the 10th largest two-day tornado outbreak since record keeping began in 1950. NOAA's Storm Prediction Center no...

A waterspout made landfall on the Hawaiian island of Oahu Friday morning on the east shore town, becoming a rare Hawaiian tornado as it moved through the towns of Lanikai and Kailua. The twister, rated an EF-0 with winds of 60 - 70 mph, tore holes in r...

February is gone, and the non-winter of 2011 - 2012 is the history books as the fourth warmest in U.S. history, said NOAA's National Climatic Data Center yesterday. The winter average temperature of 36.8°F was just 0.4°F cooler than the warmest winte...

Heavy rains from Tropical Cyclone Irina have killed 72 people on Madagascar and left 70,000 homeless, according to news reports. Irina never reached hurricane strength, but dumped heavy rains on the island over an extended period, February 29 - March 2...

A blanket of snow 2 - 4 inches deep fell yesterday on the regions of Southern Indiana and Northern Kentucky pounded by deadly tornadoes on Friday, adding to the misery of survivors. The violent tornado rampage killed 39 and injured hundreds more, wreak...

A massive tornado outbreak of stunning violence swept through the nation's midsection yesterday, spawning deadly tornadoes that killed at least 31. Hardest hit were Kentucky and Southern Indiana, which suffered 13 and 14 dead, respectively. Three were ...

A powerful spring storm system is gathering strength over Missouri this morning, and will track northeastward into Southern Michigan tonight. The atmosphere in the storm's warm sector, south of the the warm front and east of the cold front, is very uns...

The winter of 2012 blew out like a lion yesterday, with a massive Leap Day storm that pounded the Midwest with deadly tornadoes and heavy snow. A violent EF-4 tornado with 180 mph winds tore through Harrisburg, Illinois at 4:56 am CST yesterday morning...

Strong tornadoes plowed through the Midwest U.S. last night and this morning, killing at least four people. Three people died in Harrisburg, Illinois when a tornado hit near 5:37 am CST this morning, destroying 35 - 40 buildings, according to local tel...

La Niña, the cooling of the equatorial Pacific waters off the coast of South America that has dramatically affected our weather for most of the past two years, is almost done. Sea surface temperatures (SSTs) over the tropical Eastern Pacific in the ar...

We've launched a new extreme weather product this week: Record Extremes. Recent, globally record-setting years have demanded a product that combines U.S. and international record extremes into one, easy to use interface. The Record Extremes page will g...

Since 2006 , federally declared weather-related disasters in the United States have affected counties housing 242 million people--or roughly four out of five Americans. That's the remarkable finding of Environment America, who last week released a deta...

Documents illegally leaked from the Heartland Institute, one of the most active groups engaged in attacking the science of climate change, provide an unprecedented look into how these groups operate. The story was broken Tuesday by DeSmogBlog, a websit...

January 2012 was the globe's 19th warmest January since record keeping began in 1880, according to the National Oceanic and Atmospheric Administration's National Climatic Data Center (NCDC) and NASA. January 2012 global land temperatures were the 26th ...

Weather Underground's meteorologists have spent over five years developing and testing a powerful forecasting system called BestForecast, which has been used to provide all of our forecasts for non-U.S. locations for the past several years. After some ...

Tropical Cyclone Giovanna powered ashore along the east coast of Madagascar as a destructive Category 3 storm with 125 - 130 mph winds at 22 UTC last night. Winds at the coastal city of Tamatave, 70 miles north-northeast of where the center came ashore...

Earth's most dangerous storm of 2012 is Tropical Cyclone Giovanna, which is bearing down on Madagascar as a powerful Category 4 storm with 145 mph winds. Giovanna is predicted to hit a heavily populated portion of the east coast of the island near 22 G...

Last week, I blogged about how wintertime minimum temperatures in the U.S. have risen so much in recent decades, that the United States Department of Agriculture (USDA) had to update their Plant Hardiness Zone Map for gardeners for the first time since...

It wasn't the warmest January in U.S. history, but it sure didn't seem like winter last month--the contiguous U.S. experienced its fourth warmest January on record, and the winter period December 2011 - January 2012 was also the fourth warmest in the 1...

Europe's winter onslaught continues unabated this week, with very cold temperatures and heavy snows over much of the continent. Yesterday, a rare snow storm hit North Africa, bringing 2 - 3 inches of snow to Tripoli, Libya. It was the first snow in Tri...

Our calendars may say it's February, but Mother Nature's calendar says it's more like May in the waters of South Florida, where the year's first significant tropical disturbance is drenching the Keys. The disturbance, designated Invest 90L by NHC late ...

OK, this is officially nuts. The first Super Sunday Invest in history formed this morning in the Yucatan Channel between Mexico and Cuba, and is slowly becoming more organized as it moves northeast towards Southwest Florida. The new disturbance, dubbed...

Brutal winter cold continues over most of Europe, where at least 200 people have died in a cold wave that began January 26. Hardest hit has been Ukraine, where the temperature bottomed out at -17°F (-27°C) at the capital of Kyiv this morning. It was ...