Tropical Storm Andres Forms in the Northeast Pacific; Not a Threat to Mexico

By: Jeff Masters, 2:43 PM GMT on May 28, 2015

The Northeast Pacific's first named storm of 2015 is here. Tropical Storm Andres formed at 11 am EDT on Thursday, in the waters about 690 miles southwest of Manzanillo, Mexico. The first named storm of the Northeast Pacific hurricane season usually forms by June 10, so we are nearly two weeks ahead of climatology. According to the database of Eastern Pacific storms maintained by NOAA's Office for Coastal Management, the formation of a tropical storm in May in the Ea...

Hurricane

Updated: 2:50 PM GMT on May 28, 2015

Active Atlantic Hurricane Period That Began in 1995 May be Over: NOAA

By: Jeff Masters, 5:14 PM GMT on May 27, 2015

It should be another quiet Atlantic hurricane season in 2015, and the active hurricane pattern that began in 1995 may now be over, said NOAA in their May 27 seasonal hurricane forecast. They give a 70% chance of a below-normal season, a 20% chance of a near-normal season, and only a 10% chance of an above-normal season. They predict a 70% chance that there will be 6 - 11 named storms, 3 - 6 hurricanes, and 0 - 2 major hurricanes, with an Accumulated Cyclone Energy ...

Hurricane

Updated: 7:36 PM GMT on May 27, 2015

Epic Rains, Disastrous Floods Plague Texas, Oklahoma

By: Bob Henson, 2:24 PM GMT on May 26, 2015

Water cascaded through the streets, creeks, and bayous of downtown Austin and Houston on Monday as an upper-level storm inched its way across the southern Great Plains. Slow-moving thunderstorms dumped 6” to 8” across the western Houston metro area between 8:00 and 11:00 p.m., and heavy rains continued well past midnight across much of the south and west metro area, bringing some totals as high as 10+”. Though the Houston flooding came well short of that in 20...

Flood Tornado Drought

Updated: 5:20 PM GMT on May 26, 2015

Summer Weather Watch: Keep an Eye on These Five Possibilities

By: Bob Henson, 4:57 PM GMT on May 22, 2015

It’s Memorial Day weekend, the traditional start of the U.S. summer season, and millions are wondering what kind of weather the next three months will bring. Seasonal predictions have their limits any time of year, and that’s especially true in summer, when upper-level winds are weaker and local influences play a larger role. Moreover, the largest single influence on year-to-year climate variability--the El Niño/Southern Oscillation (ENSO)--is often at low ebb ...

Long-Range Summer Outlook

Updated: 5:00 PM GMT on May 22, 2015

What Can Lightning Tell Us about Storm Severity

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By: Bob Henson, 5:42 PM GMT on May 21, 2015

As soon as an incipient thunderstorm spits out its first cloud-to-ground lightning bolt, it’s a potentially deadly threat. A complex of severe storms can generate many thousands of lightning flashes per hour. Along with being a hazard in its own right, lightning can serve as an useful clue to how quickly a thunderstorm is strengthening. New tools along these lines have been developed to help forecasters, and they’re being tested this spring at NOAA's Hazardous...

Severe Weather Lightning

Updated: 8:02 PM GMT on May 21, 2015

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About

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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