The eastern Pacific hurricane season began Tuesday, but the atmosphere jumped the gun by a day producing the first tropical storm of the season.
As AccuWeather.com Meteorologist Eric Leister recently pointed out, a system roughly 640 miles south-southwest of Manzanillo, Mexico was a candidate for the 2012 season's first tropical cyclone in the eastern Pacific.
Tropical Depression One-E, which formed on Monday was upgraded to Tropical Storm Aletta later the same day.
At 2:00 a.m. PDT, Wednesday, May 16, 2012, the system was located near 11.9 North and 111.7 West, or about 770 miles south of the tip of Baja California, Mexico, with sustained winds estimated near 40 mph.
Aletta is expected to continue to track just slight north of west as it moves farther away from Mexico.
We had been observing clusters of thunderstorms fluctuating in strength in the region since late last week.
One particular cluster of storms was located within a low pressure area and remains in a favorable zone for additional development with low wind shear and sufficiently warm water.
A tropical storm forms when a low-level circulation is present.
According to Tropical Weather Expert Dan Kottlowski, "Investigations of the system, including satellite microwave technology, over this past weekend proved to be inconclusive."
The technology provides the ability to detect low-level circulation of a storm system through thick cloud cover and where no surface or aircraft observations are present.
"During this past weekend, the area of disturbed weather had a circulation in the mid-levels of the atmosphere, but not the low levels," Kottlowski said.
On Monday however, this area of disturbed weather formed a low-level circulation. This characteristic, in addition to stronger winds classified the system as a tropical depression. Subsequently, it has strengthened into a tropical storm.
Despite the increase in strength, the clock is ticking on the favorable zone for further development and survival for the system.
"After a couple of days the system would encounter cooler water and likely significant wind shear," Kottlowski said.
At any rate, the system is not a threat to land.
Meteorologist Dan DePodwin contributed to this story.
Rainfall will be scarce around Washington, D.C., this week, but cool air will be plentiful.
The chilliest air of the season so far will settle over much of the Northeast Thursday into Friday and will bring frost to more areas than experienced frost early this week.
Tropical moisture from the approaching Odile will deliver another round of heavy rain and flooding downpours to the interior Southwest by the middle of this week.
The remnants of Odile have the potential to bring heavy rain and flooding to parts of the Plains and Midwest late this week after hitting the Southwest.
Edouard has become the first major hurricane in the Atlantic since Sandy. While remaining at sea, rough surf will reach some Atlantic coast beaches.
A raging wildfire, which erupted Monday afternoon, has damaged or destroyed more than 100 structures and has forced the evacuation of hundreds of residents in Northern California, near Weed.
Concord, NH (1964)
27 degrees, concluded shortest growing season (100 days).
Gulf of Mexico (1988)
Hurricane Gilbert has travelled 2,050 miles since becoming a hurricane on Sept. 11. The storm was centered 130 miles south of Brownsville, TX, just 40 miles off the Mexican coast. Central pressure was 948 MB (27.99 inches), sustained winds of 120 mph and was tracking to the west at 12 mph. The storm came ashore at Tamaulipas, Mexico, during the evening.
At 6:00 p.m. EDT, Hurricane Hugo was located approximately 400 miles east-southeast of San Juan, P.R. With maximum sustained winds of 140 mph, Hugo was moving west-northwest at 12 mph.