Extreme Fire Threat for Four Corners

By Chris Hubbard

As a mid level trough builds into the Pacific NW, the threat for some critical fire weather is heightened for Four Corners and the surrounding regions. An area already effected by an extended drought, this region will see extremely low relative humidities and strong winds, both of which are fire weather triggers.

500mb Winds and RH levels for Wednesday(SimuAWIPS)

As seen in the image above, the strong, negatively-tilting trough that is heading into the NW is also bringing some strong, warm currents into the SW regions. Mixing together the aforementioned winds and low RH with an area already being hit with a drought and with downslope effects warming this air even further, the threat for fire is appropriately critical.

The threat continues into Thursday as well as these conditions continue.

500mb Winds and RH levels for Thursday (SimuAWIPS)

Where the Hot and Humid Conditions will be

 

 

As the week continues, a dome of high pressure anomalies will begin build across the west central region of the Plains. This will allow an extended period of warm and dry conditions to build across the interior Rockies.

 

6-10 Day Temperature Outlook (CPC)

6-10 Day Precipitation Forecast (CPC)

 

As for portions of the eastern US, a surge of warm and humid (tropical like) air masses will invade the region begin this weekend. Let summer begin!

 

by Mark Sperduti

Today’s Weather Threat

Posted by Tyler Castillo

Today, the Storm Prediction Center has issued a slight risk for areas just south of Casper, Wyoming extending as far south as Midland, Texas.

The tornado threat is low today, although damaging winds are possible. Hail will be the biggest threat today. The storms should initiate later in the afternoon as MLCAPE values approach 3000 J/kg as a result of intense daytime heating.

 

 

Storms that develop today will most likely be supercellular as sfc-500mb bulk shear will be maintained around 35-40 knots.

 

 

 

Here is the current map of the U.S., as you can see there are chances for some storms across many parts of the country. These areas include the southeast, northeast, Great Lakes region, and northwest. The only severe areas will be theĀ  region outlined above.

The Next Tropical Threat?

by Chris Hubbard

An area of disorganized thunderstorms and clouds has formed in the NW Caribbean Sea. Although there has been no major development over the past day, there is still a chance for this storm to develop in the next 48 hours. The NHC states that it has a 30% chance of developing into a tropical system. This area of clouds is expected to move inland onto the Yucatan Peninsula and bring heavy rains and strong winds to the peninsula.

Other than this storm there are no other areas of interest in either the Atlantic nor the Eastern Pacific and no systems are expected to form in the near future.

6/12/13-6/13/13 Recap

Posted by Tyler Castillo

Over the past several days, the Ohio Valley and mid-Atlantic states have been slammed by severe storms as a result of a progressive shortwave trough accompanied by a surface low pressure.

On Wednesday, June 12, most of the 409 storms reports can be found within the Ohio Valley. This includes 30 tornado reports, 257 wind reports, and 122 hail reports. Not all of these reports can be associated to the Ohio Valley region as there were a couple reports made out west.

Yesterday’s severe events were mainly confined to the mid-Atlantic states. The system produced a total of 798 storm reports, which included 9 tornado reports, 80 hail reports, and 709 wind reports.