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Central PA Summer 2023


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6 minutes ago, Bubbler86 said:

MDT is touting a fresh, hot .01 for the AM so far.  LOL.  Definitely delayed compared to yesterday's progs.   Just started dripping here. 

CTP's forecast for here from yesterday indicated rain would fall mainly after 11am, and that looks spot on now. That was my forecast and not what models were showing.

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36 minutes ago, Bubbler86 said:

Let's just hope we get it!  1/4" would be fine with me. 

Showers & some steadier rain will continue to overspread the Lower Susquehanna Valley through 10 AM. The morning & evening commutes aren’t looking too bad, though! Most of the rain should occur between 10 AM - 3 PM before tapering off. Many areas will receive around half an inch.
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29 minutes ago, Itstrainingtime said:
Showers & some steadier rain will continue to overspread the Lower Susquehanna Valley through 10 AM. The morning & evening commutes aren’t looking too bad, though! Most of the rain should occur between 10 AM - 3 PM before tapering off. Many areas will receive around half an inch.

That stretch of precip from Handyman back to Confluence would give us the goods. 

image.png.efe26678cc36a2fb31a6597ad5298732.png

 

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As for this coming Monday, perhaps the timing of the front will help mitigate the severe threat somewhat:

Day 4-8 Convective Outlook  
   NWS Storm Prediction Center Norman OK
   0344 AM CDT Thu Aug 10 2023

   Valid 131200Z - 181200Z

   ...DISCUSSION...
   Upper ridging is forecast to remain in place over the southern
   Plains and Southeast States through the weekend and into the middle
   of next week. A belt of enhanced, broadly cyclonic mid-level flow is
   expected north of this upper ridging from the northern Plains
   through the Mid-Atlantic and Northeast. A shortwave trough is
   forecast to drop southeastward into the northern/central Plains on
   D4/Sunday before continuing eastward across the Mid/Upper MS Valley
   and Upper Great Lakes on D5/Monday. Strong mid-level flow will
   accompany this system, spreading into the central Plains on
   D4/Sunday and across much of the OH Valley on D5/Monday. 

   This strong mid-level flow is still expected to support severe
   thunderstorms as the shortwave trough and associated surface low and
   cold front interact with moist and unstable airmass across the Mid
   MO and Mid MS Valleys on D4/Sunday. Mid-level flow is forecast to
   strengthen on D5/Monday as the shortwave matures and develops a
   closed circulation. The severe thunderstorm risk will persist
   eastward into the OH Valley on D5/Monday amid this strengthen upper
   flow. Best overlap between this strong flow and airmass
   destabilization is current expected to occur from southern OH into
   KY and WV. 

   Depending on the overall evolution of this shortwave, and its
   attendant surface low and cold front, some severe risk may continue
   into D6/Tuesday as the strong mid-level flow associated with the
   shortwave expands into the northern Mid-Atlantic and Northeast.
   However, current expectation is for the front to be offshore early
   D6/Tuesday morning.

   The belt of enhanced, broadly cyclonic flow across the northern tier
   of the CONUS will likely persist into D7/Wednesday and D8/Thursday.
   There is at least some potential for another shortwave trough to
   progress through the northern Plains and into the Mid/Upper MS
   Valley but inconsistency within the guidance leads to low forecast
   confidence.

   ..Mosier.. 08/10/2023
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1 minute ago, mahantango#1 said:

.09 here. The carpet and tile guys might be on the something. NWS took a big hit on their forecast, unless something happens later.

That NWS forecast was based on yesterday's models which were very wrong unfortunately.  Even this AM they were still showing a decent hit (meso's.)

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Sorry if someone else already talked about this. I just saw this at Twitter and knew many year will be thrilled to hear about this upgrade.

"The Department of Commerce and NOAA expanded the capacity of the nation’s Weather and Climate Operational Supercomputing System (WCOSS) by 20% this week. The increased computing power and storage will help improve forecast model guidance for years to come and allow for other weather prediction advances.

“Our investment in high-performance computing will pay off with better U.S. weather modeling,” said Michael C. Morgan, Ph.D., assistant secretary of commerce for environmental observation and prediction. “Forecast model upgrades made possible by this increased computing capacity will bring improved and timely forecasts and warnings that better protect life and property.”

 

https://www.noaa.gov/news-release/noaa-completes-upgrade-to-weather-and-climate-supercomputer-system

 

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