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Re: March 2023

Posted: Tue Mar 14, 2023 9:54 am
by spadilly
Day 3 outlook:

Re: March 2023

Posted: Tue Mar 14, 2023 1:41 pm
by don
Looks like a potent MCS is going to move through on Thursday.
rgem_mslp_pcpn_frzn_scus_69.png
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0228 AM CDT Tue Mar 14 2023

Valid 161200Z - 171200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE
SOUTHERN PLAINS INTO THE ARKLATEX...

...SUMMARY...
Scattered severe thunderstorms capable of producing large hail,
damaging winds, and a few tornadoes should occur Thursday across
parts of the southern Plains into the ArkLaTex and lower Mississippi
Valley.

...Southern Plains into the Lower Mississippi Valley...
Upper troughing will progress eastward across the central CONUS on
Thursday. The northern portion of this upper trough should evolve
into a closed upper low over the northern Plains and adjacent parts
of central Canada through the period. Farther south, a lead
low-amplitude shortwave trough should quickly eject northeastward
through the day from the southern Plains into the MS Valley and
Midwest. Behind this lead wave, another shortwave trough with
associated strong mid/upper-level west-southwesterly jet is forecast
to overspread parts of TX/OK by late Thursday afternoon. There are
still notable differences in deterministic guidance regarding the
amplitude and location of this second shortwave trough by late
Thursday afternoon. The primary surface low, initially near the
KS/OK border, should develop northeastward towards the Midwest/Great
Lakes by Thursday evening in tandem with the lead shortwave trough.
An attendant cold front will sweep quickly southeastward over the
central/southern Plains and ArkLaTex region. A dryline should mix
eastward across central TX through Thursday afternoon.

There are some indications in guidance that convection may initiate
fairly early in the day over the open warm sector of east TX and
vicinity. This activity may be tied to persistent low-level warm
advection, and the glancing influence of the lead shortwave trough.
Gradually increasing low-level moisture and filtered diurnal heating
should support the development of at least weak instability across
these areas. With strong deep-layer shear expected, any
thunderstorms that be sustained could pose some severe threat.
Additional isolated convection will probably develop along the
dryline by late Thursday afternoon across parts of north/central TX
as the second shortwave trough approaches the southern Plains. This
activity may initially be supercellular with a threat for large hail
given steep mid-level lapse rates and potentially moderate
instability. With time, convection will likely grow upscale into an
MCS along the quickly advancing cold front. This MCS should have a
greater wind threat as it moves generally east-southeastward
Thursday evening/overnight across central/east TX, the ArkLaTex, and
eventually lower MS Valley. A rather strong low-level jet should
also be present over east TX into AR/LA Thursday evening. With ample
low-level shear forecast, any supercells that can form and remain
ahead of the cold front/MCS should pose a tornado threat.

Re: March 2023

Posted: Tue Mar 14, 2023 4:30 pm
by MontgomeryCoWx
Headed to Des Moines for the first two rounds of the tourney.

Snow and teens/20s! Love it.

Re: March 2023

Posted: Tue Mar 14, 2023 4:47 pm
by Cromagnum
Little rogue rain cell just missed me south. Angleton and Danbury might have cashed in.

Re: March 2023

Posted: Tue Mar 14, 2023 7:00 pm
by brazoriatx
Cromagnum wrote: Tue Mar 14, 2023 4:47 pm Little rogue rain cell just missed me south. Angleton and Danbury might have cashed in.
We got about 3 mins of light sprinkles here in angleton. Not worth writing home about

Re: March 2023

Posted: Tue Mar 14, 2023 9:39 pm
by DoctorMu
don wrote: Tue Mar 14, 2023 1:41 pm Looks like a potent MCS is going to move through on Thursday.
rgem_mslp_pcpn_frzn_scus_69.png
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0228 AM CDT Tue Mar 14 2023

Valid 161200Z - 171200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE
SOUTHERN PLAINS INTO THE ARKLATEX...

...SUMMARY...
Scattered severe thunderstorms capable of producing large hail,
damaging winds, and a few tornadoes should occur Thursday across
parts of the southern Plains into the ArkLaTex and lower Mississippi
Valley.

...Southern Plains into the Lower Mississippi Valley...
Upper troughing will progress eastward across the central CONUS on
Thursday. The northern portion of this upper trough should evolve
into a closed upper low over the northern Plains and adjacent parts
of central Canada through the period. Farther south, a lead
low-amplitude shortwave trough should quickly eject northeastward
through the day from the southern Plains into the MS Valley and
Midwest. Behind this lead wave, another shortwave trough with
associated strong mid/upper-level west-southwesterly jet is forecast
to overspread parts of TX/OK by late Thursday afternoon. There are
still notable differences in deterministic guidance regarding the
amplitude and location of this second shortwave trough by late
Thursday afternoon. The primary surface low, initially near the
KS/OK border, should develop northeastward towards the Midwest/Great
Lakes by Thursday evening in tandem with the lead shortwave trough.
An attendant cold front will sweep quickly southeastward over the
central/southern Plains and ArkLaTex region. A dryline should mix
eastward across central TX through Thursday afternoon.

There are some indications in guidance that convection may initiate
fairly early in the day over the open warm sector of east TX and
vicinity. This activity may be tied to persistent low-level warm
advection, and the glancing influence of the lead shortwave trough.
Gradually increasing low-level moisture and filtered diurnal heating
should support the development of at least weak instability across
these areas. With strong deep-layer shear expected, any
thunderstorms that be sustained could pose some severe threat.
Additional isolated convection will probably develop along the
dryline by late Thursday afternoon across parts of north/central TX
as the second shortwave trough approaches the southern Plains. This
activity may initially be supercellular with a threat for large hail
given steep mid-level lapse rates and potentially moderate
instability. With time, convection will likely grow upscale into an
MCS along the quickly advancing cold front. This MCS should have a
greater wind threat as it moves generally east-southeastward
Thursday evening/overnight across central/east TX, the ArkLaTex, and
eventually lower MS Valley. A rather strong low-level jet should
also be present over east TX into AR/LA Thursday evening. With ample
low-level shear forecast, any supercells that can form and remain
ahead of the cold front/MCS should pose a tornado threat.
Great - we'll be driving through that mess.

Re: March 2023

Posted: Tue Mar 14, 2023 9:43 pm
by DoctorMu
MontgomeryCoWx wrote: Tue Mar 14, 2023 4:30 pm Headed to Des Moines for the first two rounds of the tourney.

Snow and teens/20s! Love it.
Wish I were there. Driving to Greensboro area and beyond, but the NCAAT committee pulled a switcheroo sending Duke to Orland.

A&M was seeded #7 by spite to play t.u. I think the Aggies can pull the upset, but need to win their first game against Penn State first.

Re: March 2023

Posted: Tue Mar 14, 2023 9:45 pm
by DoctorMu
Here's an image of the near Mercury and Venus conjunction:
IMG_5650.jpeg

Re: March 2023

Posted: Tue Mar 14, 2023 10:12 pm
by MontgomeryCoWx
DoctorMu wrote: Tue Mar 14, 2023 9:43 pm
MontgomeryCoWx wrote: Tue Mar 14, 2023 4:30 pm Headed to Des Moines for the first two rounds of the tourney.

Snow and teens/20s! Love it.
Wish I were there. Driving to Greensboro area and beyond, but the NCAAT committee pulled a switcheroo sending Duke to Orland.

A&M was seeded #7 by spite to play t.u. I think the Aggies can pull the upset, but need to win their first game against Penn State first.

Are you a Duke fan too?

Re: March 2023

Posted: Wed Mar 15, 2023 8:35 am
by spadilly
Day 2 maps from the SPC:

Re: March 2023

Posted: Wed Mar 15, 2023 8:50 am
by Cpv17
Doesn’t look like much of a severe weather event south of I-10. Oh well. Hopefully can get at least a half inch outta it. Need some rain down here.

Re: March 2023

Posted: Wed Mar 15, 2023 9:43 am
by Cromagnum
I'll take rain without the severe stuff, but recent track records means it will just be a broken line for us.

Re: March 2023

Posted: Wed Mar 15, 2023 11:34 am
by Iceresistance
Slight Risk now includes Houston, Enhanced risk now in place for DFW.

Re: March 2023

Posted: Wed Mar 15, 2023 7:51 pm
by jasons2k
Well at least I should get rain out of it. According to this around an inch:

Thursday
A chance of showers, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 77. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 45. Windy, with a south wind 20 to 25 mph becoming northwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

Friday
A 30 percent chance of showers and thunderstorms before 1pm. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 55. Windy, with a north wind 20 to 25 mph, with gusts as high as 30 mph.

Re: March 2023

Posted: Wed Mar 15, 2023 8:08 pm
by Cpv17
The hi-res models don’t seem very enthused about much rain.

Re: March 2023

Posted: Wed Mar 15, 2023 9:53 pm
by DoctorMu
Cpv17 wrote: Wed Mar 15, 2023 8:08 pm The hi-res models don’t seem very enthused about much rain.
HRRR has weak streamer showers tomorrow during the day with a line of showers around midnight. Sever seems unlikely, especially S of CLL. I think we'll get some rain. Maybe half an inch, possibly more.

South of I-10 looks more sparse on the Mesos.

Image

Re: March 2023

Posted: Thu Mar 16, 2023 10:03 am
by Cromagnum
It is quite windy today. It may not necessarily be in our area but someone has plenty of fuel to work with for storms.

Re: March 2023

Posted: Thu Mar 16, 2023 10:26 am
by jasons2k
Weather App shows 35 here Monday AM :shock:

Re: March 2023

Posted: Thu Mar 16, 2023 11:15 am
by MontgomeryCoWx
jasons2k wrote: Thu Mar 16, 2023 10:26 am Weather App shows 35 here Monday AM :shock:
33 here. I’ll take it!

Re: March 2023

Posted: Thu Mar 16, 2023 12:46 pm
by don
Looks like most of the precip is going to be post frontal,so im not concerned about severe weather.Still looks like a pretty rainy day for those along and north of I-10 as a disturbance passes through behind the front.