richtrav wrote:LOL, no, we DON'T need a hard freeze in South Texas, it would cause serious injury and economic loss. It's like saying Corpus really NEEDS a Category 5 storm with a 30 foot storm surge to pass directly over the middle of town. Of course we can do nothing about either one, but -removed- for a disaster has always struck me as a little perverse.
Fortunately conditions have been generally warmer up at the traditional source region for Texas' Arctic outbreaks, so a repeat of the disastrous freezes like the two seen in the 1980s is probably not as likely as it was 25 years ago. Now a brief drop to the upper or even mid-twenties is realistic given past records, but you could probably count the total number of hours below 29-30F in Brownsville on one hand since 1990.
The perfect pattern could probably do it but the odds seem less likely than in past decades. That and given the pattern predicted for this winter, I haven't seen the horrible freezes from the past listed among the analog years. Can anyone either reinforce or dismiss this argument? Either way I'd like to hear a pro's opinion.
This may be true for urban areas (due to the heat island), but rural areas likely have just as good as ever a chance to fall into the teens in S. Texas during the worst events.
These heat islands are even more evident up here in Houston though. Now a days, a 1989 level freeze would likely only reach the middle teens in downtown Houston (instead of single digits), but up my way (north of town), a temperature reading up to 10F colder than the city is still likely.
For instance, last year when it would be nearly 40F downtown, I would have a freeze at my house. IMO, I think one reason it seems "warmer" now is because the heat island has built up more around the previously rural recording stations and caused warmer temperatures to occur (especially at night).