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Jan 6/7 "Event" and obs


stormtracker
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7 minutes ago, yoda said:

Mmmmhmmm

RGENT - WINTER WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
659 PM EST Thu Jan 6 2022

DCZ001-MDZ005-006-008-011-013-014-016-018-503>508-VAZ052>054-502-
506-071200-
/O.CON.KLWX.WW.Y.0003.220107T0200Z-220107T1200Z/
District of Columbia-Carroll-Northern Baltimore-Cecil-
Southern Baltimore-Prince Georges-Anne Arundel-Charles-Calvert-
Northwest Montgomery-Central and Southeast Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Southeast Harford-Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Southern Fauquier-
Eastern Loudoun-
659 PM EST Thu Jan 6 2022

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
FRIDAY...

* WHAT...Snow. Total snow accumulations of 2 to 4 inches, with
  localized amounts up to 5 inches.

* WHERE...The District of Columbia, portions of central,
  northeast, northern and southern Maryland and northern Virginia.

* WHEN...Until 7 AM EST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Snow may fall at 1 inch or greater per hour
  overnight. Visibility will drop down to one quarter mile or
  less during the heaviest snow.

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9 minutes ago, jayyy said:

The storm is quite literally overhead. It’s a nowcast situation when you have several models showing different tracks and evolutions this close to an event. 

Radar, meso analysis, WV loop, surface analysis, etc… will tell us more than a model will at this point. 

It's not THAT big a difference across guidance, we are all just obsessing over meso scale banding placement which is a nowcast detail.  In a much larger storm who gets 28" v 22" isn't as big a deal.  In a much "wetter" storm along the baroclinic boundary with lower ratios small .1 QPF differences arent as big a deal when were talking who gets 5" from .5 and who gets 7" from .7.  But this is a type of setup where small qpf differences make a big OTG difference but that fact still doesn't make us any more able to place meso scale features accurately.  

8 minutes ago, yoda said:

Mmmmhmmm

RGENT - WINTER WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
659 PM EST Thu Jan 6 2022

DCZ001-MDZ005-006-008-011-013-014-016-018-503>508-VAZ052>054-502-
506-071200-
/O.CON.KLWX.WW.Y.0003.220107T0200Z-220107T1200Z/
District of Columbia-Carroll-Northern Baltimore-Cecil-
Southern Baltimore-Prince Georges-Anne Arundel-Charles-Calvert-
Northwest Montgomery-Central and Southeast Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Southeast Harford-Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Southern Fauquier-
Eastern Loudoun-
659 PM EST Thu Jan 6 2022

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
FRIDAY...

* WHAT...Snow. Total snow accumulations of 2 to 4 inches, with
  localized amounts up to 5 inches.

* WHERE...The District of Columbia, portions of central,
  northeast, northern and southern Maryland and northern Virginia.

* WHEN...Until 7 AM EST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Snow may fall at 1 inch or greater per hour
  overnight. Visibility will drop down to one quarter mile or
  less during the heaviest snow.

They just told ya'll to chill out too 

8 minutes ago, IronTy said:

Posting trying to tell weenies to chill when there isn't an impending line of thundersnow heading our way is basically just posting to read your own words.  Might as well just type "thoughts and prayers".  

I did my job, you have been lead to water trough...its not my fault if you dive head first into it and drown! 

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2 minutes ago, psuhoffman said:

It's not THAT big a difference across guidance, we are all just obsessing over meso scale banding placement which is a nowcast detail.  In a much larger storm who gets 28" v 22" isn't as big a deal.  In a much "wetter" storm along the baroclinic boundary with lower ratios small .1 QPF differences arent as big a deal when were talking who gets 5" from .5 and who gets 7" from .7.  But this is a type of setup where small qpf differences make a big OTG difference but that fact still doesn't make us any more able to place meso scale features accurately.  

They just told ya'll to chill out too 

I did my job, you have been lead to water trough...its not my fault if you dive head first into it and drown! 

Still think nowcasting using radar and surface analysis is more useful in ironing out what’s the more likely outcome than using models. But point taken. 

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2 minutes ago, Rhino16 said:

They said they’re making snow there and hope to have it open before the end of the weekend on the website.

Ya I saw that but its kind of perplexing because they are getting a dump of snow tonight...and then cold through Saturday...but its going to rain pretty hard Sunday so if they don't get it open by saturday....well...the "by the END of the weekend" part is confusing.  

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42 minutes ago, Eskimo Joe said:

In situations like this, the mPING app on your smart phone really helps DOTs, EMs, and NWS with identifying when it's snowing. If you have mPING and can report, please do! More about mPING: https://mping.ou.edu/#:~:text=Meteorological Phenomena Identification Near the,smart phone or mobile device.

And if you share any pics/obs on Twitter, please use the #LWXSpotter for our EM folks!

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