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June pattern and forecast discussion


weathafella
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18 minutes ago, CoastalWx said:

For **** sake at least let it be 75-80. Everyone can enjoy that.

10 of 15 days in June so far up here have been right about that level.

Last 5 maxes including today so far are 75/79/77/77/77.  

Last 7 days of May were all 74-82F maxes.

It's been pretty incredible to me how many days since May 1st have found their way to max temps right in the sweet spot of 70-80F type stuff.  

I guess we are due for something different and it sucks that it's Father's Day weekend it decides to crap out.

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23 minutes ago, powderfreak said:

10 of 15 days in June so far up here have been right about that level.

Last 5 maxes including today so far are 75/79/77/77/77.  

Last 7 days of May were all 74-82F maxes.

It's been pretty incredible to me how many days since May 1st have found their way to max temps right in the sweet spot of 70-80F type stuff.  

I guess we are due for something different and it sucks that it's Father's Day weekend it decides to crap out.

It’s the op GFS at day 4 lol. Tossed . People actually think that will verify ? WTF. The freaking out over nothing is crazy 

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7 minutes ago, Damage In Tolland said:

It’s the op GFS at day 4 lol. Tossed . People actually think that will verify ? WTF. The freaking out over nothing is crazy 

It's not just the GFS.  I don't know about anyone freaking out, lol.  It is what it is on the guidance if you look at any of it.

The 12z NAM has this for 2-M temps late afternoon on Saturday.

namconus_T2m_neus_53.thumb.png.11bdc71a293d86f5a7ceeb9b3b7640e8.png

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2 minutes ago, powderfreak said:

It's not just the GFS.  I don't know about anyone freaking out, lol.  It is what it is on the guidance if you look at any of it.

The 12z NAM has this for 2-M temps late afternoon on Saturday.

namconus_T2m_neus_53.thumb.png.11bdc71a293d86f5a7ceeb9b3b7640e8.png

You guys are all completely flipping out over an op run on a shit model . Relax.. it won’t verify 

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4 minutes ago, Damage In Tolland said:

You guys are all completely flipping out over an op run on a shit model . Relax.. it won’t verify 

I don't think anyone is completely flipping out :lol:.  Highs in the 70s and two beautiful days are a straight wishcast based on the available guidance.

Will it be 40s, no I'd bet against record low afternoon temperatures.  Probably 60s for maxes but what the bulk of the afternoons are matters.

You keep mentioning "one op run" and folks that actually look at models can tell you it's on all of them.  It's a weather forum, we discuss the model data.

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I'm not so sure we see widespread 70's...even down here. That's a pretty chilly airmass and looking at soundings, even with the mixing being advertised we may struggle to get into the 70's. NNE could be really screwed b/c mixing will be very poor up there. 

The wildcard may be cloud cover and how quickly skies clear out Friday evening/overnight before more clouds roll in Saturday. If there is widespread clearing Friday night and temperatures drop...it's going to be tough to get them to skyrocket Saturday. Obviously the strong sun angle is going to do it's work and we'll probably see that have the best influence farther south.

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Where's @OceanStWx

What does the black contoured MCD mean (obviously has something to do with TOR watch b/c it says) 

image.png.16107362ee81ebe9e6a3551914512ba7.png

Mesoscale Discussion 1176
   NWS Storm Prediction Center Norman OK
   0122 PM CDT Wed Jun 15 2022

   Areas affected...northeast IA...extreme southeast MN...portions of
   southern/central WI and extreme northwest IL

   Concerning...Severe potential...Tornado Watch likely 

   Valid 151822Z - 152015Z

   Probability of Watch Issuance...95 percent

   SUMMARY...Convection is expected to develop across northeast IA and
   spread northeast in the next couple of hours. Tornadoes, damaging
   gusts and hail will all be possible. A tornado watch will likely be
   needed by 20z.

   DISCUSSION...Visible satellite and radar data from KDMX indicate
   deepening cumulus across northeast IA to the northeast of a surface
   low and in the vicinity of a surface warm front. More isolated
   cumulus has also started to develop across southern WI. Latest water
   vapor imagery indicates a shortwave impulse now ejecting across
   eastern NE/southeast SD will lift east/northeast, providing
   increasing ascent across the region within the next couple of hours.
   Some weak inhibition likely remains in the vicinity of the surface
   boundary, though continued heating and increasing ascent should
   rapidly erode any remaining inhibition over the next hour.

   Strong heating south of the surface boundary across IA into central
   WI has allowed temperatures to warm into the mid/upper 80s amid
   upper 60s to low 70s F dewpoints. Relatively warm temperatures
   between 850-700 mb will maintain modestly steep midlevel lapse
   rates, but the very moist boundary layer is still supporting
   moderate instability across the region. Effective shear magnitudes
   greater than 50 kt will further support robust, well-organized
   convection. Some uncertainty remains with regards to convective
   mode, but semi-discrete supercells appear possible at least
   initially in convective evolution. VWP data from KARX already shows
   enlarged, favorably curved low-level hodographs supporting rotation.
   Additionally, strong low-level instability with enhance vorticity in
   the vicinity of the surface front suggests increased tornado
   potential will accompany any semi-discrete convection.

   With time, convection is expected to grow upscale as a 35+ kt
   south/southwesterly low-level jet increases by late afternoon/early
   evening. This will result in an increasing risk for more widespread
   damaging gusts, though mesovortex tornadoes also will continue to be
   possible given favorable low-level shear.
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Summer solstice snow as nearby as NF... Granted, it's the Canadian but you know ... I remember the sardonic jest a couple years ago in a post, words to the affect of '...the models won't stop until they succeed at snowing in June,'  when extolling the very obvious oddity that's become a leitmotif ... A recurring theme/tendency to attempt to do this below.    Meteorological spacing?  That's next door.

gem_mslp_pcpn_frzn_us_17.png

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Just now, weatherwiz said:

Where's @OceanStWx

What does the black contoured MCD mean (obviously has something to do with TOR watch b/c it says) 

MD 1176 graphic

Mesoscale Discussion 1176
   NWS Storm Prediction Center Norman OK
   0122 PM CDT Wed Jun 15 2022

   Areas affected...northeast IA...extreme southeast MN...portions of
   southern/central WI and extreme northwest IL

   Concerning...Severe potential...Tornado Watch likely 

   Valid 151822Z - 152015Z

   Probability of Watch Issuance...95 percent

   SUMMARY...Convection is expected to develop across northeast IA and
   spread northeast in the next couple of hours. Tornadoes, damaging
   gusts and hail will all be possible. A tornado watch will likely be
   needed by 20z.

   DISCUSSION...Visible satellite and radar data from KDMX indicate
   deepening cumulus across northeast IA to the northeast of a surface
   low and in the vicinity of a surface warm front. More isolated
   cumulus has also started to develop across southern WI. Latest water
   vapor imagery indicates a shortwave impulse now ejecting across
   eastern NE/southeast SD will lift east/northeast, providing
   increasing ascent across the region within the next couple of hours.
   Some weak inhibition likely remains in the vicinity of the surface
   boundary, though continued heating and increasing ascent should
   rapidly erode any remaining inhibition over the next hour.

   Strong heating south of the surface boundary across IA into central
   WI has allowed temperatures to warm into the mid/upper 80s amid
   upper 60s to low 70s F dewpoints. Relatively warm temperatures
   between 850-700 mb will maintain modestly steep midlevel lapse
   rates, but the very moist boundary layer is still supporting
   moderate instability across the region. Effective shear magnitudes
   greater than 50 kt will further support robust, well-organized
   convection. Some uncertainty remains with regards to convective
   mode, but semi-discrete supercells appear possible at least
   initially in convective evolution. VWP data from KARX already shows
   enlarged, favorably curved low-level hodographs supporting rotation.
   Additionally, strong low-level instability with enhance vorticity in
   the vicinity of the surface front suggests increased tornado
   potential will accompany any semi-discrete convection.

   With time, convection is expected to grow upscale as a 35+ kt
   south/southwesterly low-level jet increases by late afternoon/early
   evening. This will result in an increasing risk for more widespread
   damaging gusts, though mesovortex tornadoes also will continue to be
   possible given favorable low-level shear.

...it's like the Bubonic Plague of super cells, "the black death outbreak"   muah hahahaha

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1 minute ago, powderfreak said:

Better than the 55F up here both days, ha.

Thats nice weather, briefly hitting 70-71F with dews around 40F and strong downslope dandy NW wind.

I'm sure we'll pay for this on the back nine of summer and early on in fall, but I will take the low dews as long as I can.

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