March 2010- In Like A Lamb, Out Like A Lion?

General Weather Discussions and Analysis
User avatar
Katdaddy
Global Moderator
Global Moderator
Posts: 2501
Joined: Thu Feb 04, 2010 8:18 am
Location: League City, Tx
Contact:

WXman57 I am so ready for the real Spring. Up here in Dallas this weekend so I might get lucky and see more snow.
User avatar
srainhoutx
Site Admin
Site Admin
Posts: 19611
Joined: Tue Feb 02, 2010 2:32 pm
Location: Maggie Valley, NC
Contact:

Katdaddy wrote:WXman57 I am so ready for the real Spring. Up here in Dallas this weekend so I might get lucky and see more snow.

You and me both Katdaddy! Take some pics. ;)
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
User avatar
wxman57
Global Moderator
Global Moderator
Posts: 2621
Joined: Thu Feb 04, 2010 5:34 am
Location: Southwest Houston (Westbury)
Contact:

Well, let's see if the 18Z GFS sees any spring on the horizon. Here are a couple of meteograms. As you can see, more days above 70, but nothing near 80 for the next 2 weeks. That's unbelievable, only a couple of 80 degree days through early April. And I do think Sunday will be overcast much of the day, so Monday should be the colder morning (35).

Image

Image
User avatar
wxdata
Site Admin
Site Admin
Posts: 1059
Joined: Wed Feb 03, 2010 3:04 pm
Location: Houston, TX
Contact:

0z NAM showing track of upper low a bit further south than earlier runs.

Click map for larger image.
User avatar
srainhoutx
Site Admin
Site Admin
Posts: 19611
Joined: Tue Feb 02, 2010 2:32 pm
Location: Maggie Valley, NC
Contact:

Big spread in temps across TX this morning...

Image
Carla/Alicia/Jerry(In The Eye)/Michelle/Charley/Ivan/Dennis/Katrina/Rita/Wilma/Humberto/Ike/Harvey

Member: National Weather Association
Facebook.com/Weather Infinity
Twitter @WeatherInfinity
User avatar
txflagwaver
Posts: 411
Joined: Wed Feb 03, 2010 2:37 pm
Location: Seabrook/Kemah
Contact:

Folks to our South getting it pretty bad...60+mph winds and quarter size hail??? wow...
User avatar
wxdata
Site Admin
Site Admin
Posts: 1059
Joined: Wed Feb 03, 2010 3:04 pm
Location: Houston, TX
Contact:

Dusting of snow in Amarillo where it's 22 at 11am (wow!)
User avatar
wxdata
Site Admin
Site Admin
Posts: 1059
Joined: Wed Feb 03, 2010 3:04 pm
Location: Houston, TX
Contact:

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1158 AM CDT SAT MAR 20 2010

TXZ236>238-201800-
BRAZORIA-GALVESTON-MATAGORDA-
1158 AM CDT SAT MAR 20 2010

...SIGNIFICANT WEATHER ADVISORY...

AT 1148 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM WEST COLUMBIA TO
MATAGORDA...MOVING EAST SOUTHEAST AT 30 MPH.

ONE HALF INCH DIAMETER HAIL...WINDS GREATER THAN 40 MPH...ARE
POSSIBLE WITH THESE STORMS.

LOCATIONS IN THE PATH OF THESE STORMS INCLUDE...SARGENT...
ROSHARON...GALVESTON STATE PARK...CHOCOLATE BAYOU...WEST COLUMBIA...
SWEENY...SURFSIDE BEACH...SANTA FE...RICHWOOD...QUINTANA...
LIVERPOOL...LAKE JACKSON...LA MARQUE...JAMAICA BEACH...HITCHCOCK...
FREEPORT...CLUTE...BONNEY...BAILEY'S PRAIRIE AND ANGLETON.
User avatar
wxdata
Site Admin
Site Admin
Posts: 1059
Joined: Wed Feb 03, 2010 3:04 pm
Location: Houston, TX
Contact:

Noticed that SPC took down the slight risk even for areas east of here for this afternoon.
User avatar
sambucol
Posts: 1047
Joined: Wed Feb 03, 2010 5:43 pm
Location: Mont Belvieu
Contact:

Are we out of danger for high winds and hail now?
User avatar
wxdata
Site Admin
Site Admin
Posts: 1059
Joined: Wed Feb 03, 2010 3:04 pm
Location: Houston, TX
Contact:

sambucol wrote:Are we out of danger for high winds and hail now?
From thunderstorms, yes. However:

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
339 PM CDT SAT MAR 20 2010

...WIND ADVISORY IN EFFECT FOR THE SOUTHERN PORTIONS OF SOUTHEAST
TEXAS TONIGHT AND ALL OF SOUTHEAST TEXAS ON SUNDAY...

.STRONG NORTHWEST WINDS EXPECTED TO CONTINUE IN THE WAKE OF THE
COLD FRONT THAT PUSHED THROUGH EARLIER SATURDAY.


...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT SUNDAY...

WINDS MAY DIMINISH FOR A WHILE TONIGHT WELL INLAND BUT REMAIN
ELEVATED CLOSER TO THE COAST. EXPECT SUSTAINED NORTHWEST WINDS
BETWEEN 20 AND 30 MPH WITH HIGHER GUSTS TO PERSIST THROUGH SUNDAY.
User avatar
Paul
Posts: 535
Joined: Wed Feb 03, 2010 11:46 pm
Location: Pearland
Contact:

just got back from West end...winds in the upper 20's gusting to low 30's....windchill down there about 37F...ugh....
sleetstorm
Posts: 651
Joined: Thu Feb 04, 2010 12:33 pm
Contact:

How do you decipher a storm system's intensity, wxman57, wxdata, srainhoutx, Ptarmigan, Mr. T? Are there certain numbers that indicate how strong and weak that it is?
User avatar
C2G
Posts: 236
Joined: Wed Feb 03, 2010 8:55 pm
Location: NW Galveston County
Contact:

Aunt called from Sanger (Just north of Denton.....which is north of Dallas Fort Worth) said they were getting snow again, big flakes.
She calls every time it snows up there now since our December 4th snow event.......just to rub it in, and she's rubbed it in a lot this winter. :roll:
For the love of everything decent in this world please bring on SPRING.
I truly HATE cold weather now.
User avatar
wxdata
Site Admin
Site Admin
Posts: 1059
Joined: Wed Feb 03, 2010 3:04 pm
Location: Houston, TX
Contact:

Wind chill at IAH at midnight is only a nice chilly 31!
Poltracker
Posts: 44
Joined: Wed Feb 03, 2010 7:38 pm
Location: Deer Park, Texas
Contact:

It was still snowing in Dallas area this morning. Big problem was the wind and visibility. My brother reported almost 4 inches of snow in Rockwall. I was supposed to meet him and my sister in Buffalo this AM to give him a car (his got wrecked thanks to an unidentified 18 wheeler losing its wheel) but we had to cancel because the road conditions were so bad up there.
User avatar
wxman57
Global Moderator
Global Moderator
Posts: 2621
Joined: Thu Feb 04, 2010 5:34 am
Location: Southwest Houston (Westbury)
Contact:

sleetstorm wrote:How do you decipher a storm system's intensity, wxman57, wxdata, srainhoutx, Ptarmigan, Mr. T? Are there certain numbers that indicate how strong and weak that it is?
First of all, are we all enjoying this first full day of spring? It's so nice to be done with all that cold, windy weather, isn't it? Anyone heading to the beach today to get some sun? ;-)

As for determining a storm's intensity, we look at its reflectivity in dBz. The more reflective, the stronger the storm. And we look at vertically integrated liquid (VIL) values. And we can look at Doppler velocity data to find evidence of rotation. The reflectivity and VIL values that determine severity do change a bit from season to season. Most modern radar programs help out with the determination with built-in algorithms to identify a severe storm by indicating rotation and hail size.
User avatar
Ptarmigan
Statistical Specialist
Statistical Specialist
Posts: 3982
Joined: Wed Feb 03, 2010 7:20 pm
Contact:

wxman57 wrote:
First of all, are we all enjoying this first full day of spring? It's so nice to be done with all that cold, windy weather, isn't it? Anyone heading to the beach today to get some sun? ;-)

As for determining a storm's intensity, we look at its reflectivity in dBz. The more reflective, the stronger the storm. And we look at vertically integrated liquid (VIL) values. And we can look at Doppler velocity data to find evidence of rotation. The reflectivity and VIL values that determine severity do change a bit from season to season. Most modern radar programs help out with the determination with built-in algorithms to identify a severe storm by indicating rotation and hail size.
It is too cold to go to the beach right now, you got me thinking. ;) Normally, it should be warm by now. I remember last year at this time, it was.
User avatar
Katdaddy
Global Moderator
Global Moderator
Posts: 2501
Joined: Thu Feb 04, 2010 8:18 am
Location: League City, Tx
Contact:

The snow was great in Dallas and I am glad I got experience another snowfall. Driving out of Dallas was dangerous with the snow/slush covered bridges. Lots of wrecks. Glad to be home and very ready for real Spring.
sleetstorm
Posts: 651
Joined: Thu Feb 04, 2010 12:33 pm
Contact:

wxman57 wrote:
sleetstorm wrote:How do you decipher a storm system's intensity, wxman57, wxdata, srainhoutx, Ptarmigan, Mr. T? Are there certain numbers that indicate how strong and weak that it is?
First of all, are we all enjoying this first full day of spring? It's so nice to be done with all that cold, windy weather, isn't it? Anyone heading to the beach today to get some sun? ;-)

As for determining a storm's intensity, we look at its reflectivity in dBz. The more reflective, the stronger the storm. And we look at vertically integrated liquid (VIL) values. And we can look at Doppler velocity data to find evidence of rotation. The reflectivity and VIL values that determine severity do change a bit from season to season. Most modern radar programs help out with the determination with built-in algorithms to identify a severe storm by indicating rotation and hail size.
What precisely/specifically is dBz?
Post Reply
  • Information
  • Who is online

    Users browsing this forum: Ahrefs [Bot], Bing [Bot], Semrush [Bot] and 63 guests