||11/28/2011 03:30:00 CST-6
||11/28/2011 08:00:00 CST-6
||0/0 (fatality details below, when available...)
||A true blue norther drove pure Canadian high pressure directly into South Texas and northern Mexico, beginning on November 27th and continuing through early on the 29th before the high drifted into the southeast U.S. Extremely dry and relatively chilly air invaded Deep South Texas and the Rio Grande Valley; temperatures bottomed out in the mid 20s to lower 30s for all but the southeast corner of the Rio Grande Valley on the 28th.
The event was a rare dry freeze, as humidity through the coldest periods remained below 50 percent. Ambient temperatures varied greatly depending on the height of the sensor taking the measurements. At eye level, temperatures fell to or just below freezing in many areas, but remained a few degrees above freezing in others. Just above the ground, and in wind protected hollows, temperatures fell into the 20s; local hard freezes, defined as 2 or more hours with temperatures below 28 degrees, likely occurred. Agricultural damage was not known as of this writing.
||Temperatures fell below freezing in wind protected areas, including Falfurrias, between 3 and 4 AM and continued until 8 AM on the 28th. Minimum temperature at the Hollywood Hunting Camp, 3.5 miles west of Falfurrias, dipped to 26 degrees between 7 and 8 AM. Temperatures in non wind protected areas only fell into the mid 30s, including Brooks County Airport (2 miles southeast of Falfurrias).