Storm Stats: A Couple Records Broken

click for larger image

Storm pulling away...click for larger image

As yesterday’s storm continues to pull away from the region, tracking off the coast of Nova Scotia this morning, the record book is being updated here in Baltimore.  The storm broke two records for January 26th:  snowiest and wettest.  The 7.8″ of snow measured at BWI-Marshall was a new record for the day (old record 6.9″ in  1966), and the 1.82″ of total precipitation (melted snow and sleet plus the rain) was also a record for January 26th (old record 1.33″ in 1895).  It is also fascinating to consider that in the city, all that snow fell with temperatures above freezing at ground level; the low temperature for the day was 33F at the National Weather Service’s weather station near the Maryland Science Center!  A testimony to the intensity of the snowfall, which was great enough to overcome the warm low level temperatures.  It is also interesting that the whopping 1.82″ of total precipitation at BWI-Marshall only converted to 7.6″ of snow.  For most storms the liquid to snow ratio is somewhere around 10:1, but yesterday’s storm had a ratio of just 4.2:1 down at BWI-Marshall.  For me, that created a lot of forecasting problems because I did not expect that much snow from an atmosphere that was so warm.  The key was the intense convective snow bursts, accompanied by some thunder, as the upper level low tracked through.  The final snowfall numbers are posted below.  In general, it looks like we saw a 1-6″ snowfall from southern Maryland across the bay to the central eastern shore, and a 6-15″ snowfall from central Maryland to the upper eastern shore and southern PA.

Tomorrow we’ll be tracking a clipper dropping in from the northwest…these storms are typically much drier and it looks like this one will produce just .10″ or less of total precipitation, but that could still produce a quick 1-2″ of snow during the middle of the day and perhaps into the afternoon rush hour.  Stay tuned for more details.

Tom Tasselmyer

PUBLIC INFORMATION STATEMENT
SPOTTER REPORTS
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
911 AM EST THU JAN 27 2011

THE FOLLOWING ARE UNOFFICIAL OBSERVATIONS TAKEN DURING THE PAST
12 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 IS ALSO AVAILABLE ON OUR HOME PAGE AT WEATHER.GOV/BALTIMORE

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

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

DISTRICT OF COLUMBIA

...DISTRICT OF COLUMBIA...
   NATIONAL ARBORETUM     3.4   908 AM  1/27  CO-OP OBSERVER

MARYLAND

...ALLEGANY COUNTY...
   1 SSE CUMBERLAND      10.0  1150 PM  1/26

...ANNE ARUNDEL COUNTY...
   BWI AIRPORT            7.6   700 AM  1/27  AIRPORT
   1 WNW GREEN HAVEN      7.5   932 PM  1/26  TRAINED SPOTTER
   1 NNE CROFTON          6.5  1000 PM  1/26  TRAINED SPOTTER
   SEVERN                 6.5   913 PM  1/26  SINCE 4...00 PM
   1 NW ANNAPOLIS         6.5  1000 PM  1/26  TRAINED SPOTTER
   1 NNW PAROLE           6.3  1235 AM  1/27  TRAINED SPOTTER
   3 SW LOTHIAN           6.0   740 AM  1/27  TRAINED SPOTTER
   2 NW RIVA              4.0   915 PM  1/26  TRAINED SPOTTER
   EASTPORT               3.0   934 PM  1/26  TRAINED SPOTTER

...BALTIMORE COUNTY...
   1 SE GARRISON         13.4   905 AM  1/27  TRAINED SPOTTER
   1 E OELLA             12.0   803 AM  1/27  TRAINED SPOTTER
   HUNT VALLEY           11.8   802 AM  1/27  BROADCAST MEDIA
   ESSEX                 11.0  1141 PM  1/26  PUBLIC
   JACKSONVILLE          10.0  1143 PM  1/26  PUBLIC
   2 E PERRY HALL         9.5   742 AM  1/27  TRAINED SPOTTER
   1 NNE ROSEDALE         9.2   752 AM  1/27  TRAINED SPOTTER
   1 NE ROSSVILLE         8.7   816 AM  1/27  TRAINED SPOTTER
   PARKVILLE              8.0   942 PM  1/26  TRAINED SPOTTER
   1 WSW GUNPOWDER        7.5  1023 PM  1/26  TRAINED SPOTTER

...BALTIMORE CITY...
   PIMLICO               13.0  1100 PM  1/26  TRAINED SPOTTER
   2 ESE ARLINGTON        9.3   746 AM  1/27  BROADCAST MEDIA
   1 W PARK HEIGHTS       7.0   801 AM  1/27  TRAINED SPOTTER

...CALVERT COUNTY...
   2 N HUNTINGTOWN        4.7   745 AM  1/27  NWS EMPLOYEE
   2 WNW HUNTINGTOWN      4.1   800 AM  1/27  TRAINED SPOTTER
   2 SW HUNTINGTOWN       3.5   941 PM  1/26  TRAINED SPOTTER

...CARROLL COUNTY...
   3 SE WINFIELD         12.7  1149 PM  1/26  TRAINED SPOTTER
   3 WSW LINEBORO        10.0  1130 PM  1/26  TRAINED SPOTTER
   WESTMINSTER            8.0  1100 PM  1/26  NWS EMPLOYEE
   1 W WESTMINSTER        8.0  1135 PM  1/26  NWS EMPLOYEE

...CHARLES COUNTY...
   SAINT CHARLES          6.0  1121 PM  1/26  NWS EMPLOYEE
   2 ESE BRYANS ROAD      5.9  1136 PM  1/26  TRAINED SPOTTER
   2 E BRYANS ROAD        5.7  1000 PM  1/26  TRAINED SPOTTER
   1 SW DENTSVILLE        2.8  1124 PM  1/26  TRAINED SPOTTER

...FREDERICK COUNTY...
   POINT OF ROCKS        11.2  1150 PM  1/26  NWS EMPLOYEE
   2 NE JEFFERSON        10.0  1005 PM  1/26  TRAINED SPOTTER
   NEW MARKET             9.5   747 AM  1/27  TRAINED SPOTTER
   2 NW NEW MARKET        9.0  1000 PM  1/26  TRAINED SPOTTER
   2 ENE MYERSVILLE       9.0  1148 PM  1/26  TRAINED SPOTTER
   2 N LIBERTYTOWN        8.0   714 AM  1/27  TRAINED SPOTTER
   WALKERSVILLE           8.0  1112 PM  1/26  PUBLIC

...HARFORD COUNTY...
   2 E SCARBORO          15.5   751 AM  1/27  TRAINED SPOTTER
   EDGEWOOD              12.0   817 AM  1/27  PUBLIC
   1 NNE BEL AIR          9.5  1247 AM  1/27  TRAINED SPOTTER
   2 E NORRISVILLE        8.0   546 AM  1/27  TRAINED SPOTTER

...HOWARD COUNTY...
   3 WNW WEST FRIENDSHI  12.0   810 AM  1/27  PRIVATE COMPANY
   2 SW SAVAGE           10.5  1102 PM  1/26  TRAINED SPOTTER
   1 SSE SIMPSONVILLE     8.9   749 AM  1/27  TRAINED SPOTTER
   1 N SAVAGE             7.8  1115 PM  1/26  TRAINED SPOTTER
   1 WNW ELKRIDGE         7.5  1051 PM  1/26  TRAINED SPOTTER

...MONTGOMERY COUNTY...
   DAMASCUS              12.1  1003 PM  1/26  TRAINED SPOTTER
   1 N CLARKSBURG        10.5  1100 PM  1/26  BROADCAST MEDIA
   2 WSW GAITHERSBURG     9.0  1015 PM  1/26  TRAINED SPOTTER
   1 W ROCKVILLE          8.2  1116 PM  1/26  TRAINED SPOTTER
   POOLESVILLE            8.0  1015 PM  1/26  TRAINED SPOTTER
   1 ENE POTOMAC          7.8  1119 PM  1/26  TRAINED SPOTTER
   1 ESE NORTH POTOMAC    7.5   951 PM  1/26  TRAINED SPOTTER
   TAKOMA PARK            5.0  1018 PM  1/26  TRAINED SPOTTER
   1 N FOUR CORNERS       4.8   951 PM  1/26  TRAINED SPOTTER

...PRINCE GEORGES COUNTY...
   1 SSE FOREST HEIGHTS   8.0  1150 PM  1/26  CO-OP OBSERVER
   2 NNW BOWIE            8.0  1105 PM  1/26  TRAINED SPOTTER
   1 SW OXON HILL         7.6  1107 PM  1/26  NWS EMPLOYEE
   LAUREL                 7.5   937 PM  1/26  NWS EMPLOYEE
   1 SSW BELTSVILLE       4.5  1149 PM  1/26  TRAINED SPOTTER
   1 SW COLLEGE PARK      4.0   804 AM  1/27  TRAINED SPOTTER
   3 ENE GLENN DALE       3.0   830 AM  1/27  TRAINED SPOTTER

...ST. MARYS COUNTY...
   RIDGE                  1.5   749 AM  1/27  TRAINED SPOTTER
   LEXINGTON PARK         0.5  1145 PM  1/26  TRAINED SPOTTER
   3 ESE PARK HALL        0.5  1153 PM  1/26  TRAINED SPOTTER
DELAWARE

...KENT COUNTY...
   SMYRNA                 3.7   131 AM  1/27
   DOVER                  3.4   211 AM  1/27
   HARRINGTON             2.5   213 AM  1/27
   DOVER SPEEDWAY         2.5   239 AM  1/27
   VIOLA                  1.5   213 AM  1/27

...NEW CASTLE COUNTY...
   HOCKESSIN             12.1   209 AM  1/27
   PRICES CORNER         11.6   209 AM  1/27
   NEWARK                11.5   841 AM  1/27
   GREENVILLE            11.4   206 AM  1/27
   TALLEY BROOK          10.9   207 AM  1/27
   2 NW NEWARK           10.8   207 AM  1/27
   BEAR                  10.4   700 AM  1/27
   WILMINGTON ASOS       10.4   700 AM  1/27
   BLACKBIRD              8.9   210 AM  1/27
   GLASGOW                8.5   210 AM  1/27
   CLAYMONT               8.4   207 AM  1/27
   CHRISTIANA             4.7   431 AM  1/27  SINCE 6 PM

...SUSSEX COUNTY...
   ELLENDALE              3.7   214 AM  1/27
   LAUREL                 2.8   215 AM  1/27
   BRIDGEVILLE            1.5   215 AM  1/27
   LEWES                  0.7   305 AM  1/27
   STOCKLEY               0.4   214 AM  1/27

MARYLAND

...CECIL COUNTY...
   ELKTON                 8.5   121 AM  1/27

...KENT COUNTY...
   GALENA                 8.0   449 AM  1/27
   MILLINGTON             5.6   545 AM  1/27

...QUEEN ANNE`S COUNTY...
   STEVENSVILLE           5.3  1256 AM  1/27
   KENT ISLAND ESTATES    4.0  1147 PM  1/26

...TALBOT COUNTY...
   SAINT MICHAELS         4.5   503 AM  1/27
   EASTON                 3.5   502 AM  1/27
   TRAPPE                 1.5   502 AM  1/27
PENNSYLVANIA

...ADAMS COUNTY...
   2 N ABBOTTSTOWN        6.4   700 AM  1/27  COCORAHS
   CASHTOWN 1S            5.8   800 AM  1/27  COOP
   YORK SPRINGS           5.7   818 AM  1/27  SPOTTER
...LANCASTER COUNTY...
   NEW HOLLAND           12.0   849 AM  1/27  COOP
   2 SE LANCASTER        11.6   846 AM  1/27  COOP
   MILLERSVILLE          11.5   847 AM  1/27  MILLERSVILLE UNIV.
   SAFE HARBOR           10.9   846 AM  1/27  COOP
   LANCASTER             10.0   821 AM  1/27  SPOTTER
   DENVER                 9.0   819 AM  1/27  SPOTTER
   WEST LAMPETER          7.0   822 AM  1/27  SPOTTER
...YORK COUNTY...
   STEWARTSTOWN          11.0   823 AM  1/27  SPOTTER
   1 ENE VALLEY GREEN     7.5   600 AM  1/27  COCORAHS
   LOGANVILLE             7.3   820 AM  1/27  SPOTTER
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One Response

  1. Hi Tom, I enjoy reading the blog. I wanted to let you know that you can see streaming video from live weather events at ChaserTV.com. I don’t know if you’ve heard of this website, but I invite you to check it out. Thanks!

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