BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 THURSDAY DECEMBER 12 2002 DISCUSSION FOR TODAY AT 1 P.M. The final rainfall total was 1.22 inches for standard gage and 1.16 inches for the ASOS tipping. A trace of frozen precipitation occurred in the form of sleet for about ten minutes around 8:45 a.m. this morning. Just a trace of old snow remains here at the summit alhough there are places in the woods on the north side of the hill where there is still 1 to 3 inches. TODAY'S OBSERVATIONS... 12/12/2002 THU 7 a.m. BHO SA COR 1155 W2 X 1/16R-L-F 092/33/33/3519G30/980/ R- INTMT PK WND 0232/1058/ WND GRDLY BACKING WND 32V02/ 8///// 55003 ASOS 60058 ASOS 70110 MANUAL 70116 10038 20033 10 a.m. BHO SA 1455 E5 BKN 9 OVC 2VL-F 125/33/33/3418G25/990/ STRA DRFTG OVR SMT VSBY 1V3 INCRSNG PCPN VRY LGT RE15/ 8/6/// 51033 6006/ 1 p.m. BHO SA 1755 E6 OVC 25 140/35/33/3211/994/ VSBY WNW 45 SW 35 SE 12 WND GRDLY BACKING/ 8/6/// 53015 6006/ 10035 20033 THE DATA RECORDED FOR WEDMESDAY DECEMBER 11.. TEMPERATURES ARE CALENDAR DAY MIDNIGHT TO MIDNIGHT EASTERN STANDARD TIME MAX: 40 MIN: 25 ASOS MAX: 40 ASOS MIN: 25 MEAN: 33 [ + 1] NORMAL HIGH/LOW/MEAN: 40/25/32/ TOTAL DEPARTURE FOR DECEMBER TO DATE: - 93 degrees December is averaging 8.7 degrees colder than normal to date.... PRECIPITATION FOR 12/12 AS OF 7 A.M. 24 HRS ENDING 7 A.M.......1.16 INS. TOTAL FOR ASOS............1.10 INS. TOTAL FOR DECEMBER........1.63 INS.(STD GAGE ) ASOS DECEMBER TOTAL.......1.46 INS. DEPARTURE FROM NORMAL....-0.02 IN. TOTAL SNOWFALL 24 HRS.....0.0 INS. DECEMBER SNOWFALL.........6.6 INS. SEASONAL SNOWFALL........16.1 INS. PRECIP. TOTAL YEAR 2002...48.23 INS. DEPARTURE FROM NORMAL.....+0.07 INS. WIND DATA FOR WEDNESDAY DECEMBER 11 2002 PEAK GUST ASOS: 41 MPH ENE AT 9:45 P.M. PEAK GUST 420C: 40 MPH ENE AT 9:52 P.M. PEAK GUST AERO: 41 MPH ENE AT 9:45 P.M. DEC. 2002 PRELIMINARY DATA....ALL IS CALENDAR DAY DATA.... BELOW IS ORDER OF DATA REPORTED.... MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL /SUNSHINE/ OFFICIAL 420C WIND GUST Aero = Aerovane recording wind system gust when appropriate TSTM = thunderstorm day 12/1 35/21/28/-8/0/0/537/96/ 54 W Aerovane 53 MPH W 12/2 34/21/28/-8/000/00/006/01 29 SW 12/3 29/12/21/-14/0.08/1.2/.../.. 44 NW 12/4 28/11/20/-15/0/0/.../.. 28 WNW 12/5 25/19/22/-13/0.28/3.7/.../.. 22 NNW 12/6 28/21/25/- 9/0.11/1.7.../.. 22 NNW 12/7 37/20/29/-5/0/0/.../../.. 37 SSW 12/8 40/25/33/0/0/0/391/71/ 37 WNW Aerovane 41 MPH WNW 12/9 25/8/17/-16/0/0/.../../ 28 NW 12/10 37/17/27/-6/0/0/.../../ 28 SW 12/11 40/25/33/+1/0.37/0/000/00 40 ENE Aerovane 41 MPH ENE lightning in cloud late evening 12/12 morning low temp. 33 degrees...PRECIP THRU 1 P.M. 0.85 INCH .../.. sunshine data not available yet RECORDS FOR DECEMBER 12 HIGH 67 IN 1979 LOW -03 IN 1988 PRECIP 3.94 INS IN 1992 SNOWFALL 20.3 INS IN 1960 PEAK GUST 74 MPH W IN 2000 RECORDS FOR DECEMBER 13 HIGH 60 IN 1984 LOW 00 IN 1893 PRECIP 1.45 INS IN 1983 SNOWFALL 9.0 INS IN 1902 PEAK GUST 81e WNW IN 1976 RECORDS FOR DECEMBER 14 HIGH 62 IN 1901 LOW -06 IN 1893 PRECIP 1.36 INS IN 1953 SNOWFALL 8.0 INS IN 1907 PEAK GUST 78e ENE IN 1941 e = estimated Robert Skilling