srainhoutx wrote:The 12Z Euro has trended 'wetter' and 'colder' as the shortwave (upper air disturbance) embedded in the mean cold upper trough lingers back to our W a bit longer. We will see, but somewhere across Texas/Louisiana on N and E may see a fairly good shot of seeing a wintry mix if the trends continue.
02282015 12Z Euro f120.gif
Maybe Houston will see some winter weather........
Ptarmigan wrote:
Maybe Houston will see some winter weather........
Probably not according to the local NWS office.
That window of opportunity is dwindling even more now as we head into March.
Temperatures Thursday morning should reach freezing mainly for College Station over to
Huntsville. While precipitation should be ending there may be enough
moisture early Thursday morning for a wintry mix of precipitation for these
same areas. Precipitation chances should be ending through the morning so
do not expect there to be much of an impact. Still will mention to
keep people on their toes after a rapid increase in temperatures followed
by the cold front.
WITH THIS FORECAST PACKAGE...HAVE CONTINUED YESTERDAY`S TREND OF SLIGHTLY LOWERING
TEMPERATURES.
CONDITIONS STILL LOOK FAVORABLE FOR POSSIBLE FROZEN PRECIP UP NORTH WEDNESDAY NIGHT THROUGH THURSDAY MORNING. THERE IS A LOT OF TIME FOR THIS FORECAST TO CHANGE...SO STAY TUNED.
WITH THIS FORECAST PACKAGE...HAVE CONTINUED YESTERDAY`S TREND OF SLIGHTLY LOWERING
TEMPERATURES.
CONDITIONS STILL LOOK FAVORABLE FOR POSSIBLE FROZEN PRECIP UP NORTH WEDNESDAY NIGHT THROUGH THURSDAY MORNING. THERE IS A LOT OF TIME FOR THIS FORECAST TO CHANGE...SO STAY TUNED.
jasons (SO STAY TUNED)we're several days away from this event.
The 12Z GFS continues the trend seen yesterday via the Euro of a slower ejection of the upper air disturbance over Northern Mexico after the Arctic front arrives Tuesday night into Wednesday. This next front appears to have a punch with it and with upper energy associated with the upper trough hanging back to our West and SW, over running precipitation appears to be gaining some strength Wednesday night into at least early Thursday.
03012015 12Z GFS f84.gif
03012015 12Z GFS f90.gif
03012015 12Z GFS f96.gif
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AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1007 AM CST SUN MAR 1 2015
.UPDATE...
MORNING FORECAST UPDATE.
&&
.DISCUSSION...
LATEST SFC ANALYSIS HAS A COASTAL LOW OFF MATAGORDA BAY ALONG THE
UPPER TX COAST. THERE APPEARS TO BE TWO BOUNDARIES OF CONCERN. THE
FIRST HAS PUSHED MORE INLAND AND SEPARATES AIRMASS WITH TEMPS IN
THE 40S FROM AIRMASS WITH TEMPS IN UPPER 50S TO LOW 60S. SECOND
BOUNDARY IS THE TRUE WARM FRONT WHICH SEPARATES THE UPPER 50S/LOW
60S FROM THE UPPER 60S/LOW 70S WITH DEWPOINT TEMPS IN THE UPPER
60S AS WELL. THE 12Z CRP AND LCH SOUNDINGS CAPTURE THE COOLER
BOUNDARY LAYER AIRMASSES NORTH OF THESE BOUNDARIES. ONE GLARING
DIFFERENCE IS THE CRP SOUNDING SHOWS AN ELEVATED MIXED LAYER AND
CAP AT 700MB WHERE LCH DOES NOT. THIS MEANS LIFTING AN ELEVATED
PARCEL WOULD RESULT IN CONVECTION AND REASON WHY THERE HAS BEEN
SOME ISO TSRA BETWEEN HOUSTON AND BEAUMONT. SUSPECT THE EML WILL
ADVECT OVER SE TX MORE IN THE COMING DAYS AND LIKELY BE A FACTOR
IN THE FORECAST WHEN THE STRONG COLD FRONT COMES WED. UNTIL THEN
MAIN CONCERNS WILL BE HOW/WHEN/WHERE WARM FRONT PUSHES
NORTH/STALLS AND THEN PUSHES NORTH AGAIN THROUGH TUE. TEMP
FORECAST WILL BE VERY CHALLENGING. ONLY CHANGES TO THE FORECAST
THIS MORNING WERE FOR TEMP TRENDS AND RAIN CHANCES.
EARLY LOOK AT 12Z MODEL RUNS...NAM IS SIGNIFICANTLY SLOWER WITH
FROPA ON WED. GFS HAS BECOME MUCH MORE WET BEHIND THE FRONT ON WED
INTO THUR. WED NIGHT FORECAST WILL BE AN INTERESTING ONE.
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I am hopeful that we will not experience temperatures in the 20's for multiple hours. Those sub-freezing temperatures do a number on some of the foliage. My azaleas are budding now!