Major Cold Front Approaching


Hope you’re enjoying the warm weather in the Valley because it won’t last much longer.  A cold front pushing through on Tuesday will dramatically change high temperature for the remainder of the week. Here were today’s high and low temperatures:

Brownsville:  81/67
Harlingen:  82/62
McAllen:  85/60

Tonight will be partly cloudy and warm.  Lows will be in the lower-to-mid 60s, with fog developing after midnight.  Fog could be really dense in some areas.  Winds will be light out of the southeast.

(1/31/2011): Dense fog will be the main issue tomorrow morning.  Visibilities will be a quarter of a mile or less, so be careful if driving in the morning.  Skies will be partly cloudy, with afternoon highs reaching the upper 70s/lower 80s.  With low pressure in W. TX and high pressure in the Gulf of Mexico, winds will be strong out of the south-southeast at 15-2o mph, with gusts up to 30+ mph.  Monday night will be partly cloudy to mostly cloudy, with lows in the mid 60s.  There is a slight chance (20%) for a shower as an upper level trough enters the area. Winds will calm down a bit between 8-13 mph.  Fog may develop again after midnight.

(2/1/2011): Tuesday will be the turning point of the week.  A strong cold front, with the coldest air of the season behind it, will be pushing through the Valley on Tuesday around noon.  Winds will shift from the southeast to north at 15-20 mph, with higher gusts.  Afternoon highs will be in the upper 70s.  However, temperatures will quickly drop as soon as the cold front passes. Rain chances with this front are very minimal, and therefore I am not giving any chance of rain with this front.  By Tuesday night, lows will be down in the upper 30s/lower 40s, under mostly clear skies.  Winds will be gusty from the northeast at 10-15 mph.  Please stay warm!

(2/2/2011): Wednesday morning will be down right cold for the Valley.  Morning temperatures will be near the freezing mark, in the upper 20s/lower 30s.  Wind chill values may be in the mid 20s in some areas in the upper-Valley.  Cloudy skies will begin to develop on Wednesday morning, which is going to make it difficult for temperatures to get out of the 40s, with highs in the mid-to-upper 40s.  Chilly, north winds (10-15 mph) will make it seem colder.  Wednesday night will be mostly cloudy and cold, with lows in the upper 20s/lower 30s.


"A strong Arctic cold front will sweep through Deep South Texas during the day Tuesday. By Tuesday night...much colder air will begin pouring into the region...likely dropping temperatures into the mid and upper 30s by Wednesday morning. Highs Wednesday will struggle into the 40s as cold air continues to pour into the area. Widespread freezing temperatures are likely by Thursday morning with temperatures ranging from the mid 20s across the northern areas to right around 32 degrees in the Lower Valley. Even colder temperatures are expected Thursday and Thursday night...with highs Thursday in the low and mid 40s and lows Friday morning ranging from the lower 20s to lower 30s. .... Residents of Deep South Texas are urged to closely monitor this developing weather situation. Begin making plans now to protect people...pets..plants and your home from the possible freezing temperatures later this week." -Campbell-

*Courtesy of the National Weather Service-Brownsville*


Edinburg 3-day Forecast:

(1/31/2011): 82/61…Foggy in the morning then partly cloudy…Winds SSE to SE at 15-20 mph, G30+ mph. Chance of a shower Monday night.
(2/1/2011): 78/46…Mostly Cloudy…Winds SE to NE at 10-15 mph, G25+ mph.
(2/2/2011): 47/29…Partly Sunny…Winds N at 10-15 mph G25+




Upper-level shortwave trough, along with upper-level divergence is generating precipitation to fall over the South and Southeast U.S.  The shortwave will be exiting the CONUS by tomorrow afternoon/evening.  A surface low, in association with a cold front will be moving through Tuesday night/Wednesday morning, increasing the moisture, rain chances dramatically for AR, LA, MS, and AL.  In fact, there is a great chance for a severe weather outbreak for the South on Tuesday.  The Storm Prediction Center currently has a slight risk out, although this may change over the next 24 hours:

Storm Prediction Center's Day 3 Severe Storm Outlook

Southern Plains….

A mid-level trough that will be over OK by Tuesday, will be interacting with arctic cold air. This will increase winter precipitation chances for OK and N. TX, as well as for much of the Plains.  A deepening surface low will bring central and N. OK  snow, while N. TX and SE OK will be receiving a mix of snow/sleet/freezing rain on Tuesday.  This low is forecast to propagate NE.

Below is a snow forecast that my friend, Cory Mottice, made for Monday-Thursday of this week. You can find his full article about his snowfall prediction at his site:


Meteorologist Cory Mottice's snowfall forecast for this week.


About Brian

University of Oklahoma graduate with a degree in Meteorology. Follow me on Twitter: @WeatherInformer
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