A band of snow with a weak cold front passed our region early night, which included some below cloud lightning & thunder. Periods of large flakes to nickel-quarter size occurred, and a brief period of very heavy snow with normal-sized flakes from about 2143-2150 EST with thunder & lightning. Temperatures decreased from around 34° to slightly below 32° during the event:
That limited accumulation, which was measured as 1.1-1.2 inches on top of the existing snow cover of less than an inch with a thin layer of ice on top (best estimate of average was 1.16). Accumulation on the wooden deck was quite consistent, and averaged slightly more than 1.2 inches. Most likely accumulation was a bit less on top of the snow cover because of a film of water on top of the ice.
The MPO observations: show snow beginning at 2107 EST, yet I definitely saw it earlier - just a bit after 2100
with some flakes already on the deck - and this is 3 miles ESE of MPO (band moved from W to
E). Note that MPO does not have a melting gauge, so any snow is reported as a trace until
it sometime later melts.
KMPO 250053Z AUTO 20010KT 10SM SCT100 01/M06 A2957 RMK AO2 SLP034 T00111056 TSNO=
KMPO 250153Z AUTO 21011KT 10SM BKN047 BKN095 BKN110 01/M03 A2955 RMK AO2 SLP026 T00061033 TSNO=
KMPO 250253Z AUTO 28012G23KT 1/4SM +SN FG VV003 00/M01 A2957 RMK AO2 SNB07 SLP033 P0000 60000 T00001011 55004 TSNO=
KMPO 250353Z AUTO 27009KT 10SM BKN065 OVC080 M01/M02 A2953 RMK AO2 SNE31 SLP017 P0000 T10061022 TSNO=