Winter '23 / '24 - Snow Storm #1: STP Verification - Preliminary

BOS - Congress and Water Streets
13-APR-33

Preliminary verification of storm-total snowfalls from SAT and SUN based on reporting from CDUS41 (CLI) ... CXUS51 (CF6) ... METARs ... and PNS bulletins issued by NWS.

Excellent coverage and reporting.

HYA
Derived from PNS vicinity report carried by BOS ... inspection of NOHRSC digital snowfall plot  ... and METARs.

Snow-to-liquid ratio (SLR) less than 8:1 are not reported for some stations with measurable snowfall b/c significant liquid and / or freezing precipitation also occurred during the verification period.

The 'TOT SLR' field is a quantity-weighted average.

---
Stations observing >= Trace:  23 (85%)
Stations observing > 0.1":  17 (63%)

Given stations had measurable snowfall; stations observing at least:
4" - 9 (33%)
8" - 4 (15%)
12" - 2 (7%)

MAX snow melt-water (minimum SLR 8:1)
BDL - 1.02"
PWM - 0.98"
ORH - 0.97"

MAX precipitation (frozen + freezing + liquid)
BWI - 1.20"
ABE - 1.16"
ACY - 1.08"

---
New daily snowfall record(s)
06-JAN-24
ABE - 5.3" (4"; 2002)

07-JAN-24
ORH - 13.9" (9.9"; 1958)
PWM - 12.8" (12.7"; 1977)
BTV - 6.4" (5.5"; 1977)

---
Daily snowfall data table (click to enlarge)

Orange cells: New daily record.
Grey cells: Data source(s) - PNS and / or METARs
Trace amounts (displayed as 0.05") are not included in STP.

---
Areal distribution of storm-total snowfall

Images courtesy NOHRSC 

---
SFC analysis:  15z ... 07-JAN-24 and Storm-total Snowfall by Station

Image courtesy DOC / NOAA / NWS / NCEP / WPC

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