Sunday, March 25, 2012

Mexican Drought Fuels Despair


A cow lies rotting in the hot sun near Rancho Piedra, Mexico, Friday, May 31, 1996. Four years of drought have scorched crops and cattle grazing lands across northern Mexico, killing tens of thousands of heads of cattle. ( AP Photo/Joe Cavaretta)
By Evan Duffey, Meteorologist
Mar 25, 2012; 11:46 AM ET
While drought conditions have recently let up across the state of Texas in the United States, a drought of record proportions continues in Mexico.
The drought in northern Mexico has led to massive starvation amongst cattle, who have nothing to graze. Normally in these situations, farmers would be able to increase the amount of grain in their cattles' diet; however, the drought has drastically increased the price of grain as well.
Across Mexico, farmland is scattered with carcasses of farm animals who have died of starvationStorm. Large amounts of land have been deemed no longer useful for any agriculture, making the situation worse.
The Mexican government has stepped up efforts to provide relief, spending over $2.5 million in aid. Water tankers have been seen moving from town to town to make sure at least the people have the water they need until nature provides some relief.
Part of the reason for the Mexican drought was a rather quiet tropical season this past fall. Only three tropical systems made their way inland from the Atlantic, Tropical Storm Arlene, Tropical Storm Harvey and Hurricane Nate. And even these storms failed to penetrate across the Sierra Madres.
Another factor affecting the drought includes a predominantly continental track for this winter's storms. Many storm systems crossed the northern Plains of the U.S., instead of developing over the southern Plains and the Gulf of Mexico and moving up the southeastern U.S. coast. A drought in the southeastern U.S., mainly across Georgia, is also the result of this winter's storm track.
The impacts of the southern North American drought are expected to be felt for a long time. In an effort to cut their losses, Mexican farmers have been slaughtering their cows at a much higher rate than normal in order to make some sort of a living off their herds. Re-establishing herds will not be instantaneous and with grain prices so high, feeding any new cattle once the drought passes will still be expensive.
One sign that points toward possible recovery is the ENSO is currently returning to neutral. The ENSO is a climate pattern measured by changes in ocean temperatures. This past winter has been a La Nina year, which typically means well below-normal precipitation for the southern U.S. and northern Mexico. If an El Nino forms by this upcoming winter, there is the possibility that enough moisture will have returned to allow for a significant recovery.

Northeast Cold Blast Follows Weekend Rain


By , Expert Senior Meteorologist
Mar 25, 2012; 8:24 AM ET
A storm finally gone from the Plains will keep the Northeast damp this weekend. However, a quick blast of cold air follows the storm with a freeze and frost.
The same storm responsible for flash flooding in the South Central states this week will continue to spend this weekend crawling off the East Coast.
While the storm is sparking severe weather across the Southeast only spottier showers will fall in the Northeast today.
The rain is coming at a time when many have had little time to enjoy the record-breaking warmth from the past week.
However, folks who have been planting flowers and vegetables this week will want to take notice of a major freeze potential on the way Monday night.
Temperatures forecast to be more than 50 degrees lower early next week, compared to the 80-degree temperatures experienced of late, will be a big shock in itself.
AccuWeather.com RealFeel® temperatures in some locations could be as much as 70 degrees lower Monday night, compared to the afternoons of this past week.
Some locations will have calm conditions and a frost. Others will have below-freezing temperatures and wind that can cause great damage to tender plants.
Nurseries and garden centers that have racks of plants outdoors may want to move them indoors.

Virginians, Carolinians Asking 'What the Hail?'


A resident of Franklin County, Va., digs his car out of the hail that accumulated on his driveway. ("Wild About Weather" Facebook group)
By Bill Deger, Meteorologist
Mar 25, 2012; 7:36 AM ET
Despite temperatures in the 60s and 70s, it looked like the middle of winter in parts of the Southeast on Saturday.
No, it wasn't snow--but hail that covered the ground up to 6 inches deep in some communities on Saturday from southwestern Virginia into South Carolina.
Responsible for the chaos were severe thunderstorms in association with a large storm system packed with plenty of cold air in the upper levels of the atmosphere.
That cold air helped to generate hail, and plenty of it, in most of the thunderstorms that formed during the afternoon and evening hours.
The Storm Prediction Center compiled 80 reports of hail from Saturday ranging from an inch (quarter size) to two and three-quarters of an inch in diameter (baseball size).
Thunderstorms produced hail across a half dozen states, from West Virginia to Georgia.
The most prolific hailmakers struck around dinnertime from Lynchburg, Va., to the Triad region of North Carolina.
A few of the responsible storms were even spinning according to radar, but fortunately there were no reports of tornadoes. However, the hail alone did a lot of damage.

Severe weather reports from Saturday. Hail reports are represented by green dots, while strong winds and wind damage are represented by blue dots. (SPC/NOAA)
Windshields were busted out by golf ball-sized hail near Mount Herman, N.C. Near Salemburg, N.C., quarter-sized hail fell fast and furious for about seven minutes, pelting and denting everything in sight.
Since many of the thunderstorms were slow moving, the hailstones piled up fast, several inches deep in some areas. As they melted, runoff quickly flooded drainage areas and roadways.
While the accumulated hail is now long gone, the photos and videos posted to social media will continue to impress for a long time to come.
Here is a look at some of the photos and videos from Saturday's storms:
Hail accumulated 6 inches deep on this back porch in Smith Mountain Lake, Va. (Michelle Dix Corvin/WSLS-TV)
Hail covering the deck of a resident of Davidson County, N.C. (Twitter user @nccoyne)
Hail damage to a car near Lynchburg, Va. ("5 State Weather" Facebook group)