Wx Infinity Forums

Portastorm wrote:This deal is ramping up quickly. Saw several cloud-to-ground lightning strikes here in SW Austin in last 15 minutes.

A lot of lightning being observed off to the west of Houston around San Antonio and Austin.

Locations already around freezing have a good chance to see some thunder freezing rain or thunder sleet later on... Probably some hail too

don wrote:I was wondering the same thing, if were colder than surrounding areas due to deeper cold air funneling from areas to our northeast due to the recent winter storm. You can sort of see the funnel of cold air on this temperature map.

Nice map. That's pretty much what I was thinking


Also, HGX would be smart to enter thunder into the forecast for tonight during the evening update.

Don't sugarcoat it for me, guys: Will houston see .25 of an inch of freezing rain same as folks up to our north?

Paul Robison wrote:Don't sugarcoat it for me, guys: Will houston see .25 of an inch of freezing rain same as folks up to our north?

If that does occur, it'll be for guys north of IH-10

You guys keep talking about thunder. Anybody hearing any?

Could it be since the snow pack is higher north of our position, vs north of central texas?

Portastorm wrote:This deal is ramping up quickly. Saw several cloud-to-ground lightning strikes here in SW Austin in last 15 minutes.

Sounds like an intensifying storm.

Mr. T wrote: A lot of lightning being observed off to the west of Houston around San Antonio and Austin.

Locations already around freezing have a good chance to see some thunder freezing rain or thunder sleet later on... Probably some hail too

Thunder freezing rain or sleet. The last time Houston had thunder during freezing rain was January 1997.

Hmmmm. 36 now in La Porte. Forecast low is 34. What is keeping us from freezing tonight?

One thing the 'helped' keep our temps in check today were those 'Lake Effect' snow bands and clouds from N Texas. Also Lake Livingston area had several reports of -sn this morning into mid day S of the Dam. Cold air advection continues to filter almost straight S over the areas that receive wintry precip yesterday. The SPC and radar suggests it could be a very interesting night and the HIRES NAM is suggesting convective banding. Stay Safe tomorrow morning folks.

SPC Update:

...SOUTH TX...

A RASH OF ELEVATED CONVECTION HAS RECENTLY DEVELOPED ACROSS PORTIONS
OF SCNTRL TX. THIS ACTIVITY IS PRODUCING LIGHTNING AND APPEARS TO
BE FORMING NEAR 700MB. 00Z SOUNDING FROM DRT SUGGESTS A PARCEL
LIFTED FROM 700MB YIELDS MUCAPE APPROACHING 500 J/KG. GIVEN THE
WEAK WARM ADVECTION AT LEVEL OF PARCEL LIFT THIS ACTIVITY SHOULD
GRADUALLY EXPAND IN AREAL COVERAGE OVER THE NEXT FEW HOURS.

I remember in 2000 or 2001, we had thunder and lightning but the temps stayed at 33 or 34. Very very heavy rain and lots of thunder. I was so mad when i woke up and had to drive to school that morning.

srainhoutx wrote:One thing the 'helped' keep our temps in check today were those 'Lake Effect' snow bands and clouds from N Texas. Also Lake Livingston area had several reports of -sn this morning into mid day S of the Dam. Cold air advection continues to filter almost straight S over the areas that receive wintry precip yesterday. The SPC and radar suggests it could be a very interesting night and the HIRES NAM is suggesting convective banding. Stay Safe tomorrow morning folks.

SPC Update:

...SOUTH TX...

A RASH OF ELEVATED CONVECTION HAS RECENTLY DEVELOPED ACROSS PORTIONS
OF SCNTRL TX. THIS ACTIVITY IS PRODUCING LIGHTNING AND APPEARS TO
BE FORMING NEAR 700MB. 00Z SOUNDING FROM DRT SUGGESTS A PARCEL
LIFTED FROM 700MB YIELDS MUCAPE APPROACHING 500 J/KG. GIVEN THE
WEAK WARM ADVECTION AT LEVEL OF PARCEL LIFT THIS ACTIVITY SHOULD
GRADUALLY EXPAND IN AREAL COVERAGE OVER THE NEXT FEW HOURS.

No offense, Srainhoutex, but what does this mean in English?

http://radar.weather.gov/Conus/southplains_loop.php

http://radar.weather.gov/radar.php?prod ... x&loop=yes

nuby3 wrote:http://radar.weather.gov/Conus/southplains_loop.php

I see it, Nuby 3. Looks like it all seems to be moving northeast. As long as the freezing rain keeps moving that-a-way.....

HARRIS-LIBERTY-POLK-SAN JACINTO-WALKER-
INCLUDING THE CITIES OF...CLEVELAND...COLDSPRING...CORRIGAN...
DAYTON...HOUSTON...HUMBLE...HUNTSVILLE...KATY...LIBERTY...
LIVINGSTON...ONALASKA...PASADENA...SHEPHERD...TOMBALL
815 PM CST MON MAR 3 2014

...WINTER STORM WARNING IN EFFECT UNTIL 11 AM CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A
WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 11 AM CST TUESDAY.
THE WINTER WEATHER ADVISORY HAS BEEN UPGRADED TO A WINTER STORM
WARNING FOR HARRIS...LIBERTY...POLK...SAN JACINTO...AND WALKER
COUNTIES.

* EVENT...A COLD AIR MASS AND AN APPROACHING UPPER LEVEL
DISTURBANCE WILL SET THE STAGE FOR A MIX OF FREEZING RAIN OR A
RAIN SLEET MIX BEGINNING AROUND 9 PM. THIS WINTRY MIX WILL
COMMENCE OVER COUNTIES ALONG AND NORTH OF THE HIGHWAY 10
CORRIDOR AND THEN EXPAND NORTH AND EAST THROUGH THE NIGHT. ICE
ACCUMULATIONS OF GENERALLY BETWEEN A 0.10 OF AN INCH...BUT NO
MORE THAN A QUARTER OF AN INCH...ARE FORECAST. ANY ICE ACCRETION
CAN MAKE FOR HAZARDOUS TRAVEL...ESPECIALLY ON BRIDGES AND
ELEVATED ROADWAYS SUCH AS OVERPASSES. MOTORISTS SHOULD PLAN FOR
DELAYS IN THE MORNING COMMUTE AND BE PREPARED TO DELAY TRAVEL OR
USE SURFACE STREETS...PROVIDING AMPLE BRAKING SPACE WITH THE
VEHICLE IN FRONT OF YOU. TEMPERATURES SHOULD RISE ABOVE FREEZING
BY 10 AM OVER MUCH OF THE SOUTHERN PORTIONS OF THE ADVISORY
AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ROADS...BRIDGES...AND OVERPASSES IN THE WARNING AREA WILL BECOME
SLICK AND HAZARDOUS. ACCUMULATION OF ICE UPON ROAD SURFACES...BRIDGES
AND OVERPASSES WILL MAKE FOR HAZARDOUS TRAVELING. SIDEWALKS MAY
RECEIVE A GLAZE OF ICE AND BECOME DIFFICULT FOR PEDESTRIANS.

Just got this email from CenterPoint:

The Electric Reliability Council of Texas (ERCOT) is asking all customers to reduce their electric use as cold weather continues to cause a high demand for power across the state. Conservation will be especially important between the hours of 5 a.m. and 9 a.m. tomorrow morning. Additional information can be found on Twitter (@CNPalerts and @ERCOT_ISO) or on Facebook.

Thank you for your assistance.

Update your power alert communication preferences:
http://CenterPointElectric.com/PowerAlertService

And there's the upgrade to warning for Harris County. Wow!

35 in la Porte. One degree from our forecast low. dew point 25.

I see it, Nuby 3. Looks like it all seems to be moving northeast. As long as the freezing rain keeps moving that-a-way.....

All activity is expanding to the east though. There are bands pushing eastward along IH-10 towards Houston

This isn't even the main event anyway... The stronger disturbance will be here in the morning where a solid qpf shield should be over SE TX by then. Check out HGX's model output pictures on their homepage.

So its currently at 31 in Kingwood and falling...I see the rain on the way. My question is, what does this have in store? Is this going to be worse than what the local news outlets are calling for? Were these freezing temperatures expected this early in the area? I'm a teacher, so I'm wondering about what the morning will bring

don wrote:HARRIS-LIBERTY-POLK-SAN JACINTO-WALKER-
INCLUDING THE CITIES OF...CLEVELAND...COLDSPRING...CORRIGAN...
DAYTON...HOUSTON...HUMBLE...HUNTSVILLE...KATY...LIBERTY...
LIVINGSTON...ONALASKA...PASADENA...SHEPHERD...TOMBALL
815 PM CST MON MAR 3 2014

...WINTER STORM WARNING IN EFFECT UNTIL 11 AM CST TUESDAY...

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A
WINTER STORM WARNING...WHICH IS IN EFFECT UNTIL 11 AM CST TUESDAY.
THE WINTER WEATHER ADVISORY HAS BEEN UPGRADED TO A WINTER STORM
WARNING FOR HARRIS...LIBERTY...POLK...SAN JACINTO...AND WALKER
COUNTIES.

* EVENT...A COLD AIR MASS AND AN APPROACHING UPPER LEVEL
DISTURBANCE WILL SET THE STAGE FOR A MIX OF FREEZING RAIN OR A
RAIN SLEET MIX BEGINNING AROUND 9 PM. THIS WINTRY MIX WILL
COMMENCE OVER COUNTIES ALONG AND NORTH OF THE HIGHWAY 10
CORRIDOR AND THEN EXPAND NORTH AND EAST THROUGH THE NIGHT. ICE
ACCUMULATIONS OF GENERALLY BETWEEN A 0.10 OF AN INCH...BUT NO
MORE THAN A QUARTER OF AN INCH...ARE FORECAST. ANY ICE ACCRETION
CAN MAKE FOR HAZARDOUS TRAVEL...ESPECIALLY ON BRIDGES AND
ELEVATED ROADWAYS SUCH AS OVERPASSES. MOTORISTS SHOULD PLAN FOR
DELAYS IN THE MORNING COMMUTE AND BE PREPARED TO DELAY TRAVEL OR
USE SURFACE STREETS...PROVIDING AMPLE BRAKING SPACE WITH THE
VEHICLE IN FRONT OF YOU. TEMPERATURES SHOULD RISE ABOVE FREEZING
BY 10 AM OVER MUCH OF THE SOUTHERN PORTIONS OF THE ADVISORY
AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ROADS...BRIDGES...AND OVERPASSES IN THE WARNING AREA WILL BECOME
SLICK AND HAZARDOUS. ACCUMULATION OF ICE UPON ROAD SURFACES...BRIDGES
AND OVERPASSES WILL MAKE FOR HAZARDOUS TRAVELING. SIDEWALKS MAY
RECEIVE A GLAZE OF ICE AND BECOME DIFFICULT FOR PEDESTRIANS.

There goes our electricity!