Thursday, January 29, 2015

Winter '14 / '15 - Storm #2: Preliminary Verification

Preliminary storm-total snowfalls for Storm #2 (26/28-JAN-15) from CDUS41 and CXUS51 bulletins.

Fairly good coverage and reporting.

Suspect observations
 - PWM/s 2.37" liquid on the 27th works out to an SLR slightly less than 10:1.
The 7-group @ 12z/28th is much lower.
Estimated liquid:  0.95"

- BTV/s 0.03" liquid on the 27th ==> 120:1 SLR.

- PNSBOX carried 27" @HYA; however ... vicinity reports averaged 22".

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One new daily snowfall record on 26-JAN-15
ISP - 7.5" (4.5"; 1987)

Eight new daily snowfall records on 27-JAN-15
ORH - 31.9" (11"; 2011)
PWM - 22.8" (8.3"; 1963)
BOS - 22.1" (8.8"; 2011)
ISP - 17.3" (9.6"; 2011)
PVD - 16" (6.7"; 2011)
BGR - 14.9" (10.8"; 1963)
CON - 12.8" (6.2"; 1963)
JFK - 5.6" (4.3"; 2011)

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Please report any errors in Comments along with a link to the correct data.
Final results Friday evening.

3 comments:

Anonymous said...

BTV ratio is probably legit, they topped up with lake effect snow from L Champlain and that can be very fluffy. Winning ORH and losing almost everywhere else :)

-- Roger Smith

Anonymous said...

BDR was 7.2".

TQ said...

Differences for snowfall measured on 1/26

CF6 3.5
Daily climate report 3.6

Tie-breaker
PUBLIC INFORMATION STATEMENT
SPOTTER REPORTS
559 AM EST TUE JAN 27 2015
BRIDGEPORT AIRPORT
3.5
1200 AM 1/27