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March 24/25 Overrunning Disturbance


wncsnow

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About 9" and some change for a total south of Roanoke this morning. Roanoke Airport only received 1.7" total. 

I was barely on the edge of the bands last night, but it was really putting it down.

Bluefield, WV received 17", bringing their monthly total to 32" for March! 

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Sick cut off with this system. NWS Blacksburg ended up with 11.6" and just 30 miles to the northeast the Roanoke airport got less than 2. Melting quickly here though.

Over 20" of snow this March in Blacksburg.

 

View this morning at 8am:

 

IMG_20180325_081332_2.thumb.jpg.50976c3915da7f1e92013fafbf7e007d.jpg

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Public Information Statement
Spotter Reports
National Weather Service BLACKSBURG VA
237 PM EDT Sun Mar 25 2018

The following are unofficial observations taken during the past 18
hours for the storm that has been affecting our region. Appreciation
is extended to highway departments, cooperative observers, Skywarn
spotters and media for these reports. This summary also is available
on our home page at weather.gov/blacksburg

********************STORM TOTAL SNOWFALL********************

LOCATION          STORM TOTAL     TIME/DATE   COMMENTS
                     SNOWFALL           OF
                     /INCHES/   MEASUREMENT

NORTH CAROLINA

...Alleghany County...
   3 S Bridle Creek       6.0   900 AM  3/25  Trained Spotter
   2 E Glade Valley       5.5  1130 PM  3/24  Transitioning to sleet
   Ennice                 5.5   843 AM  3/25  Trained Spotter
   1 NNE Twin Oaks        4.2   900 AM  3/25  Trained Spotter
   1 SSW Whitehead        4.0   800 AM  3/25  Trained Spotter

...Ashe County...
   1 SE Flatwood          6.0   900 AM  3/25  Trained Spotter
   3 WSW Grassy Creek     4.3   900 AM  3/25  Trained Spotter
   3 E Wagoner            4.0   900 AM  3/25  Trained Spotter
   Ashland                4.0   900 AM  3/25  Trained Spotter
   2 SE Fleetwood         3.5  1100 PM  3/24  Trained Spotter

...Caswell County...
   4 ESE Quick            3.0   630 AM  3/25  Trained Spotter
   3 SSE Providence       3.0   100 AM  3/25  Trained Spotter
   2 NE Camp Springs      2.5   800 AM  3/25  Trained Spotter

...Rockingham County...
   Wentworth              6.0   911 AM  3/25  Broadcast Media
   2 WNW Stoneville       4.5   830 AM  3/25  Trained Spotter
   3 E Monroeton          3.0   800 AM  3/25  Trained Spotter
   2 E Intelligence       3.0   800 AM  3/25  Trained Spotter
   Eden                   2.8   633 AM  3/25  Reported via Twitter
   1 ENE Reidsville       2.5  1245 AM  3/25  Trained Spotter

...Stokes County...
   Lawsonville            7.0   200 AM  3/25  Public
   3 SE Westfield         3.8   830 AM  3/25  snow and sleet mixed.
   Francisco              3.5  1002 PM  3/24  Social Media
   4 NW Germanton         3.0   900 AM  3/25  Trained Spotter
   1 SW Vade Mecum        3.0   800 AM  3/25  Trained Spotter
   King                   2.8   845 AM  3/25  Social Media
   Danbury                2.5   940 PM  3/24  Trained Spotter

...Surry County...
   2 NNW Toast            4.1   800 AM  3/25  Trained Spotter
   Mount Airy             4.0  1200 AM  3/25  Social Media
   2 W Bottom             4.0   830 AM  3/25  Trained Spotter
   4 SW Westfield         3.2   600 AM  3/25  Public

...Watauga County...
   Blowing Rock           4.5   915 AM  3/25  Trained Spotter
   Todd                   4.3   758 AM  3/25  Social Media
   2 WNW Sands            4.0   915 AM  3/25  Trained Spotter
   2 NE Meat Camp         4.0   915 AM  3/25  Trained Spotter
   1 SSE Valle Crucis     2.5   915 AM  3/25  Trained Spotter
   2 ENE Peoria           2.0  1106 AM  3/25  Trained Spotter

...Wilkes County...
   1 NNW Wilkesboro       2.0   700 AM  3/25  Law Enforcement

...Yadkin County...
   Jonesville             2.0   102 PM  3/25  Law Enforcement
   5 N Brooks Crossroad   2.0   800 AM  3/25  Trained Spotter
   Yadkinville            2.0  1145 PM  3/24  Law Enforcement

VIRGINIA

...Bedford County...
   Moneta                 2.0  1030 AM  3/25  Broadcast Media

...Bland County...
   3 SW Long Spur        16.3   220 AM  3/25  Trained Spotter
   1 W Rocky Gap         13.5   724 AM  3/25  Trained Spotter

...Carroll County...
   1 NE Galax Hillsvill  11.5   900 AM  3/25  Trained Spotter
   3 SE Gladesboro       10.0  1110 PM  3/24  Trained Spotter
   4 WNW Hillsville       8.5   933 PM  3/24  Social Media
   Hillsville             8.3  1045 PM  3/24  Social Media
   1 W Pipers Gap         8.0   845 AM  3/25  Trained Spotter
   2 SSE Byllesby         7.1   633 AM  3/25  Trained Spotter

...City of Danville...
   DANVILLE AIRPORT       2.5   215 AM  3/25  ASOS

...City of Martinsville...
   Martinsville City      3.0   935 PM  3/24  Law Enforcement

...City of Radford...
   Radford               14.0   124 AM  3/25  Reported via FB
   1 S Radford           11.0   800 AM  3/25  Public

...City of Roanoke...
   2 ENE Cave Spring      4.5   818 AM  3/25  at 1450 feet elevation
   1 SW Vinton            3.0   745 AM  3/25  Trained Spotter
   2 S ROANOKE AIRPORT    2.0   332 AM  3/25  Broadcast Media

...Craig County...
   1 ESE Simmonsville     7.0   748 AM  3/25  Trained Spotter

...Floyd County...
   2 SSE Pilot           15.0  1100 PM  3/24  3" in the past hour
   4 NE Alum Ridge       15.0   806 AM  3/25  Social Media
   Indian Valley         14.5   410 AM  3/25  Submitted via FB
   2 S Terrys Fork       14.3   115 AM  3/25  Trained Spotter
   4 SE Terrys Fork      11.5   745 AM  3/25  Trained Spotter
   3 SW Indian Valley    11.5   815 AM  3/25  Trained Spotter
   4 N Meadows Of Dan    11.0   800 AM  3/25  Trained Spotter
   Copper Hill           11.0   837 AM  3/25  Social Media
   5 NW Woolwine         10.5   950 PM  3/24  Social Media
   Floyd                  9.0  1000 PM  3/24  Social Media
   2 S Pilot              9.0   840 PM  3/24  Public
   5 WSW Callaway         8.0   930 PM  3/24  CoCoRaHS

...Franklin County...
   Oak Level              7.0   717 AM  3/25  Social Media
   Callaway               6.8   751 AM  3/25  Social Media
   2 NNE Oak Level        6.0   400 AM  3/25  Social Media
   2 NE Rocky Mount       5.8   245 AM  3/25  Public
   Snow Creek             5.5   846 AM  3/25  Public
   3 SE Rocky Mount       5.0   400 AM  3/25  Public
   2 SSW Rocky Mount      5.0   600 AM  3/25  Public

...Giles County...
   Pearisburg            12.0   839 AM  3/25  Social Media
   Poplar Hill           11.8  1200 AM  3/25  Public
   3 SW Eggleston        11.2   845 AM  3/25  Trained Spotter
   Pembroke              11.0   741 AM  3/25  Social Media
   3 ENE Eggleston       10.9   441 AM  3/25  Public
   1 NE Pearisburg       10.1  1115 PM  3/24  Trained Spotter
   2 SE Mountain Lake     8.2  1100 PM  3/24  Trained Spotter
   2 S Kimballton         8.2   745 AM  3/25  Public
   1 SE Narrows           8.0   830 AM  3/25  Trained Spotter
   2 SSE Kimballton       7.4  1230 AM  3/25  Trained Spotter

...Grayson County...
   4 SSW Spring Valley    9.8  1130 AM  3/25  Public
   5 NW Baywood           8.0  1000 AM  3/25  Trained Spotter
   2 WNW Fries            6.0  1130 PM  3/24  Trained Spotter
   Mouth Of Wilson        5.0   900 PM  3/24  Public

...Henry County...
   3 N Sanville           7.0   300 AM  3/25  Trained Spotter
   2 NW Chatmoss          5.6  1130 PM  3/24  Trained Spotter
   2 SSE Figsboro         5.0   900 AM  3/25  Trained Spotter
   2 NNE Leatherwood      5.0   730 AM  3/25  Trained Spotter
   Ridgeway               5.0   842 AM  3/25  Social Media
   2 SE Axton             4.5   900 AM  3/25  Trained Spotter
   1 SE Spencer           4.0  1045 PM  3/24  During past 6 hours

...Montgomery County...
   2 S Pilot             16.2  1000 AM  3/25  Trained Spotter
   2 NNE Childress       12.0  1035 PM  3/24  Social Media
   2 SW Christiansburg   12.0   730 AM  3/25  Trained Spotter
   Blacksburg            11.6   800 AM  3/25  NWS Blacksburg Office.
   Christiansburg        11.0   838 AM  3/25  Social Media
   4 ENE Childress       10.0   730 AM  3/25  Trained Spotter
   Prices Fork            9.5  1050 PM  3/24  Social Media
   2 NE BLACKSBURG        9.5   130 AM  3/25  NWS Employee
   2 SE Blacksburg        9.3   330 AM  3/25  Trained Spotter
   3 NNW Blacksburg       9.3   600 AM  3/25  Trained Spotter
   2 N Blacksburg         9.3   845 AM  3/25  Trained Spotter
   5 NNE Blacksburg       9.3  1245 AM  3/25  10" snow depth
   2 WSW Blacksburg       8.5  1230 AM  3/25  Social Media
   3 N Blacksburg         8.0   915 AM  3/25  Trained Spotter
   4 S Christiansburg     7.0  1015 PM  3/24  Social Media

...Patrick County...
   4 NW Ararat            8.0   700 AM  3/25  Trained Spotter
   1 S Charity            8.0   900 AM  3/25  Trained Spotter
   4 NW Sanville          7.0   800 AM  3/25  Trained Spotter
   3 N Collinstown        6.0   800 AM  3/25  Trained Spotter
   4 SE Stuart            5.0   830 AM  3/25  Trained Spotter
   4 ESE Buffalo Ridge    4.0   915 PM  3/24  Trained Spotter
   4 SSW Critz            4.0   800 AM  3/25  Trained Spotter

...Pittsylvania County...
   4 ESE Swansonville     5.0   801 AM  3/25  Whitmell VA.
   5 NE Cascade           4.5  1000 AM  3/25  near Brosville

...Pulaski County...
   Dublin                14.0   219 AM  3/25  Reported via FB
   2 SSE Dublin          14.0   900 AM  3/25  Trained Spotter
   1 SSE Graysontown     13.9   810 AM  3/25  near snowville
   2 NW Copper Valley    13.9   700 AM  3/25  Trained Spotter
   1 E Fairlawn          13.0   200 AM  3/25  Public
   2 WNW Graysontown     13.0   150 AM  3/25  Public
   1 E Draper            12.1   615 AM  3/25  Trained Spotter
   2 WNW Radford         12.0  1145 PM  3/24  Trained Spotter
   Pulaski               12.0  1100 PM  3/24  Social Media
   Graysontown           11.8  1046 AM  3/25  Trained Spotter
   2 ENE Pulaski         10.0  1015 PM  3/24  Trained Spotter
   3 WNW Fairlawn         9.3   230 AM  3/25  Trained Spotter

...Roanoke County...
   3 ESE Elliston         6.8   230 AM  3/25  Reported via Twitter
   1 WNW Bradshaw         6.5   700 AM  3/25  Trained Spotter
   3 W Poages Mill        5.6   245 AM  3/25  Trained Spotter
   Bent Mountain          5.0   840 PM  3/24  Social Media
   3 ESE Elliston-Lafay   5.0  1145 PM  3/24  Social Media
   Catawba                4.0   956 PM  3/24  Social Media
   Cave Spring            4.0   153 AM  3/25  Reported via Twitter
   3 ESE Cave Spring      3.8   753 AM  3/25  Kevin Myatt
   2 SSW Laymantown       3.0   158 AM  3/25  Public
   3 N Salem City         2.8   700 AM  3/25  Public

...Smyth County...
   2 N Adwolf             4.0  1030 PM  3/24  Trained Spotter

...Tazewell County...
   Jewell Ridge          12.0   909 AM  3/25  WVVA Viewer report
   Bluefield             10.0   858 AM  3/25  viewer report
   2 ESE Tiptop           9.0   618 AM  3/25  Social Media
   3 NW Tazewell          8.5   958 PM  3/24  Public

...Wythe County...
   1 N Wytheville        14.0  1157 PM  3/24  Transitioning into rain
   1 NNW Wytheville      13.5  1006 PM  3/24  Trained Spotter
   1 NNW WYTHEVILLE      13.1  1014 PM  3/24  Co-Op Observer
   Rural Retreat         13.0  1135 PM  3/24  Social Media
   Wytheville            13.0  1025 PM  3/24  Social Media
   2 WSW Wytheville      12.0   940 PM  3/24  Trained Spotter

WEST VIRGINIA

...Greenbrier County...
   Alderson               4.0  1219 PM  3/25  Dept of Highways

...Mercer County...
   2 ESE BLUEFIELD       17.0  1257 AM  3/25  Broadcast Media
   1 N Bluefield         15.5   930 AM  3/25  Trained Spotter
   3 WNW Mercer County   15.0   907 AM  3/25  Broadcast Media
   Princeton             14.0   857 AM  3/25  viewer report
   2 E Princeton         13.0   745 AM  3/25  Trained Spotter
   1 W Princeton         13.0  1030 PM  3/24  Trained Spotter
   2 WSW Princeton       12.5  1015 PM  3/24  Trained Spotter
   2 NE Athens           12.5  1110 PM  3/24  Trained Spotter
   2 NNE Montcalm        12.0   930 PM  3/24  Trained Spotter
   Athens                12.0   840 AM  3/25  Social Media
   Bluefield             12.0  1117 PM  3/24  Social Media
   2 W Princeton         12.0   815 AM  3/25  Public
   1 S Athens            11.5   445 AM  3/25  Public
   2 SW Lerona           10.0  1030 PM  3/24  Trained Spotter

...Monroe County...
   2 SSW Red Sulphur Sp  10.0   840 AM  3/25  near ballard wv
   Peterstown             8.0  1214 PM  3/25  Dept of Highways
   1 WNW Red Sulphur Sp   6.5  1152 PM  3/24  Trained Spotter
   Lindside               6.0  1219 PM  3/25  Dept of Highways
   3 ENE Wayside          4.8  1200 AM  3/25  Trained Spotter
   Sweet Springs          3.2   730 AM  3/25  Trained Spotter

...Summers County...
   1 E Pipestem           9.0  1027 PM  3/24  Trained Spotter
   1 E Talcott            7.0   901 AM  3/25  Broadcast Media
   1 N Pipestem           6.0  1010 PM  3/24  Trained Spotter
   Hinton                 4.3  1014 PM  3/24  Social Media


***********************STORM TOTAL ICE***********************

LOCATION          STORM TOTAL     TIME/DATE   COMMENTS
                          ICE           OF
                     /INCHES/   MEASUREMENT

NORTH CAROLINA

...Alleghany County...
   3 ESE Whitehead       0.10   800 AM  3/25  Trained Spotter
   3 S Bridle Creek         T   900 AM  3/25  Trained Spotter
   1 NNE Twin Oaks          T   900 AM  3/25  Trained Spotter
   1 SSW Whitehead          T   800 AM  3/25  Trained Spotter

...Ashe County...
   1 SE Flatwood         0.10   900 AM  3/25  Trained Spotter
   3 WSW Grassy Creek       T   900 AM  3/25  Trained Spotter
   3 E Wagoner              T   900 AM  3/25  Trained Spotter
   Ashland                  T   900 AM  3/25  Trained Spotter

...Watauga County...
   3 W Blowing Rock      0.30  1030 AM  3/25  Trained Spotter
   2 W Boone             0.18   800 AM  3/25  Trained Spotter
   Todd                  0.13   758 AM  3/25  Social Media
   2 WNW Sands           0.10   915 AM  3/25  Trained Spotter
   2 NE Meat Camp           T   915 AM  3/25  Trained Spotter
   2 ENE Peoria             T  1106 AM  3/25  Trained Spotter
   1 SSE Valle Crucis       T   915 AM  3/25  Trained Spotter
   Blowing Rock             T   915 AM  3/25  Trained Spotter

VIRGINIA

...Carroll County...
   1 NE Galax Hillsvill     T   900 AM  3/25  Trained Spotter
   1 W Pipers Gap           T   845 AM  3/25  Trained Spotter
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Regarding snow ratio for the areas of heavy snow in SW VA, it may have been a case where the water content was fairly  high, but there were a lot of high quality dendrite snowflakes being produced which pile up more efficiently due to their lacy structure.

High snow ratios would be seen when you have the combination of 1) the full air column being cold (say low to mid 20’s or lower thru the column) <AND> 2) a lot of dendrites are being produced (high levels of vertical motion in the dendrite growth zone) 

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25 minutes ago, griteater said:

Regarding snow ratio for the areas of heavy snow in SW VA, it may have been a case where the water content was fairly  high, but there were a lot of high quality dendrite snowflakes being produced which pile up more efficiently due to their lacy structure.

High snow ratios would be seen when you have the combination of 1) the full air column being cold (say low to mid 20’s or lower thru the column) <AND> 2) a lot of dendrites are being produced (high levels of vertical motion in the dendrite growth zone) 

Thanks Grit!

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