Texas Spring 2013

[SaskatchewanScreamer]

BEAUTIFUL!!!!! Too bad it won't stay this way. Another cool down mid week.

The front is arriving here tomorrow morning and will feel like fall/winter than spring. Expect it down that way by the evening/night hours. Now we just need a big volcano to erupt somewhere and we can extend this makeshift cold season right through summer!

With all that snowpack up north, May could be cool too.....hummm. It "aint" going anywhere anytime soon....LOL

[horselattitudesfarm]

Cool discussion on Gravity Waves from this mornings DFW NWS discussion:

AT 4 AM THE FRONT IS JUST NOW REACHING THE NW CWA...BUT IT IS
BEING PRECEDED BY A PRONOUNCED GRAVITY WAVE. GRAVITY WAVES ARE
ESSENTIALLY THE ATMOSPHERIC VERSION OF THE RIPPLES THAT RESULT ON
A POND AFTER A STONE IS THROWN IN. RADAR IS SHOWING A SET OF 5 OR
6 WAVES...AND SATELLITE IS SHOWING CLOUDS ARE TRYING TO FORM ALONG
THE FIRST TWO WAVES. THESE CLOUDS WILL LOOK LIKE A ROLL CLOUD AND
A SET OF ROLL CLOUDS IS USUALLY CLASSIFIED AS AN UNDULAR BORE.
LOW STRATUS MOVING UP FROM THE SOUTH MAY RUIN VIEWING OF THESE
RARE AND BEAUTIFUL CLOUD FORMATIONS...BUT SOME AREAS OF NORTH
TEXAS MAY GET LUCKY. GRAVITY WAVES REQUIRE A TEMPERATURE INVERSION
OR CAP IN WHICH TO PROPAGATE IN...AND IT GOES WITHOUT SAYING THAT
THE CAP IS VERY STRONG NOW AND IS EXPECTED TO KEEP A LID ON
THUNDERSTORM DEVELOPMENT TODAY. BELOW THE CAP THERE MAY BE ENOUGH
SHALLOW INSTABILITY AND MOISTURE

[Ntxw]

Brrr cold this morning, the wind made it unpleasant. The astonishing thing is these cold snaps are occuring during a very +AO and +NAO! Of course the signals work a bit different in different seasons but still should have some influence. Just to show how the Pacific Ocean dictates our weather, no raging jet and good sst's.

[weatherdude1108]

Cool discussion on Gravity Waves from this mornings DFW NWS discussion:

AT 4 AM THE FRONT IS JUST NOW REACHING THE NW CWA...BUT IT IS
BEING PRECEDED BY A PRONOUNCED GRAVITY WAVE. GRAVITY WAVES ARE
ESSENTIALLY THE ATMOSPHERIC VERSION OF THE RIPPLES THAT RESULT ON
A POND AFTER A STONE IS THROWN IN. RADAR IS SHOWING A SET OF 5 OR
6 WAVES...AND SATELLITE IS SHOWING CLOUDS ARE TRYING TO FORM ALONG
THE FIRST TWO WAVES. THESE CLOUDS WILL LOOK LIKE A ROLL CLOUD AND
A SET OF ROLL CLOUDS IS USUALLY CLASSIFIED AS AN UNDULAR BORE.
LOW STRATUS MOVING UP FROM THE SOUTH MAY RUIN VIEWING OF THESE
RARE AND BEAUTIFUL CLOUD FORMATIONS...BUT SOME AREAS OF NORTH
TEXAS MAY GET LUCKY. GRAVITY WAVES REQUIRE A TEMPERATURE INVERSION
OR CAP IN WHICH TO PROPAGATE IN...AND IT GOES WITHOUT SAYING THAT
THE CAP IS VERY STRONG NOW AND IS EXPECTED TO KEEP A LID ON
THUNDERSTORM DEVELOPMENT TODAY. BELOW THE CAP THERE MAY BE ENOUGH
SHALLOW INSTABILITY AND MOISTURE

That is cool!

I really enjoy reading the DFW office discussions. They always takes their discussions to a new level. Even though I don't live in that area, I always look forward to their discussions to see what I can learn, like a curious school boy.

[Rgv20]

Brownsville NWS's forecast for my area... I'm I reading this correct?? Gotta be a typo!!

Wednesday: A chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a temperature falling to around 51 by noon. Breezy, with a northeast wind 9 to 14 mph becoming north 16 to 21 mph in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 50%.

[South Texas Storms]

Brownsville NWS's forecast for my area... I'm I reading this correct?? Gotta be a typo!!

Wednesday: A chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a temperature falling to around 51 by noon. Breezy, with a northeast wind 9 to 14 mph becoming north 16 to 21 mph in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 50%.

Yep, you're reading that right Rgv! Enjoy the chilly temperatures down there tomorrow and I hope you get some needed rain too!

[South Texas Storms]

Here is my final weather broadcast of the semester. It's so much better than my first one a few months ago!
http://www.youtube.com/watch?v=WcAr4CtL ... e=youtu.be

[Ptarmigan]

Brrr cold this morning, the wind made it unpleasant. The astonishing thing is these cold snaps are occuring during a very +AO and +NAO! Of course the signals work a bit different in different seasons but still should have some influence. Just to show how the Pacific Ocean dictates our weather, no raging jet and good sst's.

Not unusual to see cold snaps in positive Arctic Oscillation (AO) and North Atlantic Oscillation (NAO).

Cold Snaps That Occurred In Positive AO and NAO
Winter 1904-1905 had a mostly positive AO and NAO
January 1978
December 1983 Freeze
February 1989 Freeze

[Ntxw]

Not unusual to see cold snaps in positive Arctic Oscillation (AO) and North Atlantic Oscillation (NAO).

Cold Snaps That Occurred In Positive AO and NAO
Winter 1904-1905 had a mostly positive AO and NAO
January 1978
December 1983 Freeze
February 1989 Freeze

They sure can! The most common denominator, post 1950, for all of those (and latest cold snaps) is the -EPO (highly favorable Pacific).

[weatherdude1108]

Interesting blurb from Bob Rose today:

"The models are just beginning to resolve this recent development in the pattern, so confidence in the rainfall forecast right now are not all that good. As of now, I expect totals to be in the range of 0.25 to 0.50 inches. Daily high temperatures will be in the upper 70s to 80 degrees. The forecast data is calling for an even better chance for rain sometime next Wednesday into Thursday when a stronger trough of low pressure tracks east out of the southwestern US. This system has the potential to bring more substantial totals of rain to our region compared to the ones early in the week."

http://www.lcra.org/water/conditions/we ... olumn.html

[Ntxw]

39F currently at DFW, that beats the daily record low of 41.

[Tireman4]

Woo Hoo

[wxman57]

It feels like I'm back in Norway out there. The only thing missing is the continuous light rain and 30-40 mph wind.

[Rgv20]

55F Windy with Mist in the air.......April 24.......

[weatherdude1108]

I LOVE that we are getting Winter-type temperatures in late April!

We are guaranteed to get our fair share of 90s/100s at least half of a year here, so any cool we can get is WELCOME IMO.

[vbhoutex]

[Tireman4]

I LOVE that we are getting Winter-type temperatures in late April!

People at work are almost griping of how chilly it is. I just roll my eyes and wanna slap 'em. It is good to keep in mind that we are guaranteed to get our fair share of 90s/100s at least half of a year here, so any cool we can get is WELCOME IMO.

Wow. LOL

[wxman57]

There can never be enough 90s/100s. Temps should rebound into the 80s by this weekend, at least.

[Ptarmigan]

Not unusual to see cold snaps in positive Arctic Oscillation (AO) and North Atlantic Oscillation (NAO).

Cold Snaps That Occurred In Positive AO and NAO
Winter 1904-1905 had a mostly positive AO and NAO
January 1978
December 1983 Freeze
February 1989 Freeze

They sure can! The most common denominator, post 1950, for all of those (and latest cold snaps) is the -EPO (highly favorable Pacific).

EPO data only goes back to 1950. It would be cool if it goes further back.
Cold Snaps In Positive EPO
January 1978
December 1983 Freeze
February 1989 Freeze
December 1989 Freeze

[weatherdude1108]

I LOVE that we are getting Winter-type temperatures in late April!

People at work are almost griping of how chilly it is. I just roll my eyes and wanna slap 'em. It is good to keep in mind that we are guaranteed to get our fair share of 90s/100s at least half of a year here, so any cool we can get is WELCOME IMO.

Wow. LOL

Oopsie. Damage control:
I meant "slap e'm" metaphorically. I would never slap anyone (in case anyone wonders). Sorry about that.

Besides, I know Wxman will have the last laugh and have his warmth in due time.