I had to post this here when I saw it, thanks to @andyhb for bringing it to my attention. Binghamton NY's ob
KBGM 170553Z AUTO 1/4SM +SN FZFG VV002 M09/M11 A2985 RMK AO2 TWR VIS 3/4 SLP136 P0040 60120 T10891106 11072 21089 58023 RVRNO
.40 liquid in one hour 1.20 in 6. Even at 10:1 you are talking 4" per hour that hour and 2" per hour in 6 hours. But that is at 10:1. Notice the temp/dew -9c/-11c. You are almost assuredly having higher than 10:1 ratios. Even at 12:1 thats 4.8" and 14.4 in 1/6 hours.