Hurricane Sandra Heads for Mexican Coast; Icing, Flooding Hit Southern Plains

After becoming the latest major hurricane on record in the Western Hemisphere, a weakening Hurricane Sandra remained on track Friday for a history-making landfall early Saturday on the coast of Mexico’s Sinaloa state. A Tropical Storm Warning was in effect for Las Islas Marias and for Mexico’s Pacific coast from Altata to San Blas, including the Mazatlan area. Sandra will be a fast-decaying storm by that point, but even in that condition, it should be a record-...<br /><a href="">Read More</a>

An Unprecedented Thanksgiving Visitor: a Category 4 Hurricane

Remarkable Hurricane Sandra exploded into a Category 4 storm with 145 mph winds overnight, making it the latest major hurricane ever observed in the Western Hemisphere (November 26.) The previous record was held by an unnamed Atlantic hurricane in 1934 that held on to Category 3 status until 00 UTC November 24. Sandra is also now the latest Category 4 storm ever observed in either the Eastern Pacific (previous record: Hurricane Kenneth on November 22, 2011) or the A...<br /><a href="">Read More</a>

Unseasonable Sandra: Hurricane Threat for Mexico, Torrential Rain in Southern Plains

Holiday travel during the busy Saturday/Sunday Thanksgiving weekend across portions of the Southern Plains will get disrupted by a most unusual occurrence--flooding rains and a potential ice storm, enhanced by moisture from the strongest Eastern Pacific hurricane observed so late in the year. Declared a hurricane on Tuesday night, fast-strengthening Sandra is already making East Pacific history about 700 miles south of Cabo San Lucas. Sandra reached Category 2 stren...<br /><a href="">Read More</a>

Late-Season Tropical Storm Sandra Could Strike Mexico and Drench Texas

Tropical Storm Sandra formed on Tuesday morning in the record-warm Pacific waters off the south coast of Mexico, about 570 miles south of Manzanillo. Sandra joins last week's Tropical Storm Rick as one of the latest-forming tropical storms in the history of the Eastern Pacific. Since accurate records began in 1949 (with higher-quality satellite records beginning in 1971), the Eastern Pacific has seen only six tropical storms form after November 18: December 5, 1983 ...<br /><a href="">Read More</a>

Eastern Pacific's Invest 91E A Threat to Mexico

An area of disturbed weather (Invest 91E) is approaching tropical depression status in the record-warm Pacific waters off the south coast of Mexico, about 425 miles south of Acapulco. Satellite images on Monday morning showed that 91E had a large and expanding area of heavy thunderstorms with a pronounced rotation. The 7 am EST Monday run of the SHIPS model predicted that 91E would be over record-warm ocean waters near 30�C (86�F) and under light wind shear around...<br /><a href="">Read More</a><img src="" width="0" height="0" border="0"

Carbon Dioxide Bidding Farewell to 400-ppm Benchmark

On an otherwise unremarkable day last week--November 11, 2015 (noted mainly for being Veterans Day in the U.S.)--a crucial milestone in global climate was quietly transcended. The daily average concentration of carbon dioxide in the air that day at Hawaiis Mauna Loa Observatory was 399.68 parts per million. On November 12 it rose to 401.64 ppm, and its quite possible that well never see another day in our lives with the daily Mauna Loa CO2 reading below 400...<br /><a href="">Read More</a>

Destructive Windstorm Rips across Northwest U.S.; TS Rick Forms in Northeast Pacific

One of the most widespread and damaging bouts of high wind to strike the Northwest U.S. in years tore down trees and power lines and knocked vehicles off roadways from Washington to the northern Great Plains from Tuesday into Wednesday. At one point, high wind warnings covered nearly 1 million square kilometers, or more than 10% of the contiguous United States (thanks to Stu Ostro at The Weather Channel for this tidbit). Washington governor Jay Inslee declared a sta...<br /><a href="">Read More</a>

October 2015: Earth's Warmest Month on Record by a Huge Margin

Earth’s surface temperature has surged high into uncharted territory, thanks to a record-strength El Niño event combined with the long-term rise in temperatures due to human-caused global warming: October 2015 was Earth’s warmest month on record by a huge margin, according to data released by NOAA's National Centers for Environmental Information (NCEI) on Wednesday. October 2015 was the second consecutive month with a new all-time warmest month record: Septembe...<br /><a href="">Read More</a>

Springtime in November: Tornadoes Rake High Plains from Nebraska to Texas

The latest tornado outbreak on record west of the 100th meridian left damage strewn late Monday across parts of western Kansas and the Oklahoma and Texas Panhandles. The tornadoes emerged from a batch of long-lived supercell thunderstorms spawned by a very strong upper-level low that encountered near-record levels of atmospheric moisture for mid-November. The same upper-level storm has plastered the southern Rockies with heavy snow and produced blizzard conditions o...<br /><a href="">Read More</a>

El Niño of 2015 Hits All-Time Record Strength for a 1-Week Period

Incredibly warm waters continue to build across the equatorial Pacific, and the El Niño event of 2015 has just set a record for the warmest waters ever observed in the equatorial Pacific over a 1-week period. Sea-surface temperatures (SSTs) in the Pacific’s Niño3.4 region, between 90°W and 160°E longitude and 5° north/south latitude, are considered the benchmark for rating the strength of an El Niño event. The weekly departure of SST from average in this reg...<br /><a href="">Read More</a>