Winter '20 / '21 - Snow Storm #3: Preliminary STP Verification

Accumulation-weighted SN:H20 (SLR)

Preliminary verification of storm-total snowfalls for SUN and MON from CDUS41 (CLI) ... CXUS51 (CF6) ... METARs ... and PNS bulletins.  Excellent coverage and reporting.

HYA STP estimated by applying inverse distance weighting interpolation of three timely reports within 3.5 SM of the station carried by the PNS bulletin from BOX.

SBY STP estimated based on one report from the forecast station/s county (Wicomico) carried by AKQ/s PNS bulletin.

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SLR not reported for some stations with measurable snowfall b/c significant liquid and / or freezing precipitation also occurred during the verification period.

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Stations observing at least 0.1":  25 (93%)

Given a station had measurable snowfall; stations observing at least ...
4" - 7 (28%)
6" - 4 (16%)

MAX snow melt-water (minimum SLR 8:1)
BDR: 0.49"
ORH:  0.47"
JFK:  0.46"

MAX liquid precipitation (frozen + freezing + liquid):
SBY:  0.78"
ORF:  0.77"
ACY:  0.74"

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New daily record(s)
07-FEB-21
ISP - 6.4" (4.4"; 1986)

Storm total snowfall
Images courtesy NOHRSC

SFC analysis:  15z ... 07-FEB-21
Image courtesy DOC / NOAA / NWS / NCEP / WPC

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Please report any errors in Comments along with a link to the correct data.
FINAL results expected NLT TUE evening.