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April Discobs 2022


George BM
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I wonder if some of us see some hail/gusty winds later with any convection/storms that manage to develop in the region. MLLRs will be fairly steep w/ 500mb temps of -20 to -22C. LLLRs look to be very steep as well. Weak instability (MLCAPE generally less than 500J/kg) owing to fairly low dews (45-50F) while a limiting factor may be slightly offset by the very steep LLLRs. Not expecting anything too crazy. Maybe some gusty winds and some hail like I mentioned.

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For Sunday night: freeze watch N and W
Washington-Frederick MD-Carroll-Northern Baltimore-Cecil-
Northwest Montgomery-Northwest Howard-Northwest Harford-
Southeast Harford-Augusta-Rockingham-Shenandoah-Frederick VA-Page-
Warren-Clarke-Northern Fauquier-Western Loudoun-
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-Morgan-
Berkeley-Jefferson-
Including the cities of Hagerstown, Frederick, Ballenger Creek,
Eldersburg, Westminster, Reisterstown, Cockeysville, Elkton,
Germantown, Damascus, Lisbon, Jarrettsville, Aberdeen, Staunton,
Waynesboro, Stuarts Draft, Harrisonburg, Strasburg, Woodstock,
Mount Jackson, New Market, Winchester, Luray, Shenandoah,
Stanley, Front Royal, Berryville, Warrenton, Purcellville,
Big Meadows, Wintergreen, Paw Paw, Martinsburg, Charles Town,
and Shepherdstown
948 AM EDT Sat Apr 16 2022

...FREEZE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY
MORNING...

* WHAT...Sub-freezing temperatures as low as 30 possible.

* WHERE...Portions of central, north central, northeast and
  northern Maryland, central, northern, northwest and western
  Virginia and eastern West Virginia.

* WHEN...From late Sunday night through Monday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

 

WB 12Z NAM

BED21480-BE17-4677-A392-6C8274D17684.png

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9 hours ago, GATECH said:

Wow .45 here so far, maybe a few more rounds inbound. At least my car is back to white instead of yellow!  #winning!

Every cell the came my way looked great on radar but went into the toilet right as it got here

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Yay snow lol

URGENT - WINTER WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
932 AM EDT Sun Apr 17 2022

MDZ001-501-VAZ503-507-508-WVZ501-503-505-190000-
/O.NEW.KLWX.WW.Y.0025.220418T0900Z-220419T0000Z/
Garrett-Extreme Western Allegany-Western Highland-
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-
Western Grant-Western Mineral-Western Pendleton-
932 AM EDT Sun Apr 17 2022

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 8 PM EDT
MONDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5
  inches.

* WHERE...Garrett and extreme western Allegany counties in
  Maryland, western portions of Grant, Mineral and Pendleton
  counties in West Virginia, western Highland County and the
  northern and central Blue Ridge in Virginia.

* WHEN...From 5 AM to 8 PM EDT Monday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions will impact the morning and evening commute.

* ADDITIONAL DETAILS...Most snow accumulation will be above 2000
  feet and will be mostly confined to unpaved surfaces, though
  some slush on roads is likely.
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Went on a bit of a mtb binge this past week (trails have been in good shape). If it’s gonna be a late November day tomorrow it might as well be Monday while my legs are sore. 

Also hiked a trail in Michaux last weekend where it hailed/graupel’d for a few minutes. That was pretty wild.

Definitely a flip flop pattern, but seems to be inching it’s way towards spring. Latter half of the week looks pretty nice.

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8 hours ago, nw baltimore wx said:

@MN Transplant

What can you tell us about the Condition Monitoring map on CoCoRaHS?

I haven’t been using it, but it seems like the idea is that it is an augmentation to the weekly drought monitor.  Having looked at some reports, it also seems to serve as a journal entry for some observers.

https://media.cocorahs.org/docs/ConditionReportingGuide_2.0C.pdf

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