BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 TUESDAY OCTOBER 29 2002 DISCUSSION FOR TODAY AT 1 P.M. High cirrus clouds seen to the distant south and southwest early this morning spread across the whole sky by early afternoon and thickened to altostratus enough to shut off the bright sunshine of this morning. In addition, our high temperature reached only 43 degrees before the clouds moved in. The morning low of 29 degrees was our lowest temperature thus far this season and was 10 degrees COLDER than normal. The almost two-week period (12 days) from October 14-25th averaged more than 5 degrees colder than normal. The month is now averaging 1.4 degrees colder than normal. THE OBSERVATIONS FOR TODAY.... 10/29/2002 TUE 7 A.M. BHO SA 1155 CLR 75 218/30/22/3310/017/ SC OFFSHR NE-SE FEW CI DSNT S-SW/ 8/501/ 53011 10033 20029 10 A.M. BHO SA 1455 CLR 80 221/39/21/3407/018/ SC ALG/OFFSHR DSNT E-SSE CI DSNT S-W WND 28V03/ 8/505/ 51003 1 P.M. BHO SA 1755 220 SCT E250 OVC 90 203/43/19/3504/013/ FEW SC DSNT E-SSE BINOVC/CLR SKY BND DSNT N-E PARTIAL SOLAR HALO VSBY ESTMTD 100+ SM/ 8/506/ 58018 10043 20030 THE DATA RECORDED FOR MONDAY OCTOBER 28 TEMPERATURES ARE CALENDAR DAY MIDNIGHT TO MIDNIGHT EASTERN STANDARD TIME MAX: 50 MIN: 33 ASOS MAX: 50 ASOS MIN: 33 MEAN: 42 [- 6 ] NORMAL HIGH/LOW/MEAN: 56/40/48 OCTOBER DEPARTURE TO DATE: - 33 deg. OCTOBER AVERAGE: 1.4 DEGREES COLDER THAN NORMAL PRECIPITATION FOR 10/29 AS OF 7 A.M. 24 HRS ENDING 7 A.M.......0.00 INS. ASOS......................0.00 INS. TOTAL FOR 10/26...........1.56 INS. (standard gage )(ASOS 1.46 ) OCTOBER TOTAL ...........4.00 INS. DEPARTURE FROM NORMAL....+0.03 INS. OCTOBER ASOS TOTAL........3.83 INS. PRECIP. TOTAL YEAR 2002...39.48 INS. DEPARTURE FROM NORMAL.....-2.09 INS. ASOS TOTAL FOR 2002....... n/a WIND DATA FOR MONDAY OCTOBER 28, 2002 PEAK GUST ASOS: 23 MPH NW AT 7:47 P.M. PEAK GUST 420C: 27 MPH WNW AT 12:58 P.M. PEAK GUST AERO: 27 MPH WNW AT 12:58 P.M. OCT. 2002 PRELIMINARY DATA....ALL IS CALENDAR DAY DATA.... BELOW IS ORDER OF DATA REPORTED.... MAX/MIN/MEAN/DEP/PRECIP/SUNSHINE/ OFFICIAL 420C WIND GUST Aero = Aerovane recording wind system gust when significantly higher ... data as yet not available for daily sunshine... TSTM = thunderstorm day ASOS TWO MINUTE MAXIMUM WIND ON THE RIGHT FROM THE ASOS IS OUR AUTOMATED SURFACE OBSERVING SYSTEM (ASOS) 10/1 78/58/68/+11/0/649/92/ 29 SW " " = 23 SW 10/2 83/63/73/+16/0.01/618/88/ 27 WSW " " = 21 WSW 10/3 69/50/60/+4/0.07/007/01/ 28 ENE " " = 21 NE 10/4 64/49/57/+1/0.01/028/04/ 32 SE " " = 26 SSE 10/5 78/54/66/+11/0.03/430/62/ 44 S " " = 35 SSE ** 10/6 60/48/54/-1/0/683/99/ 27 NE " " = 20 ENE 10/7 68/49/59/+4/TRACE/206/30 31 NW " " = 25 SSW *** 10/8 57/42/50/-4/0/651/95/ 23 NNW " " = 17 NW 10/9 55/38/47/-7/0/007/01/ 18 SE " " = 14 SE 10/10 60/47/54/+1/0/204/30/ 18 ESE " " = 17 E 10/11 56/50/53/+0/0.18/000/00/ 32 E " " = 22 E 10/12 55/53/54/+1/0.44/000/00/ 37 ENE " " = 26 ENE 10/13 56/54/55/+2/0.35/000/00/ 28 NE " " = 20 NE 10/14 54/37/46/-6/0/655/98/ 33 NW " " = 26 NW 10/15 51/33/42/-10/0/473/71/ 20 ESE " " = 20 ESE 10/16 62/44/53/+2/1.08/000/00/ 59 E " " = 40 ENE **** 10/17 62/43/53/+2/627/95/ 43 WSW " " = 35 W 10/18 55/41/48/-3/631/96/ 27 WNW " " = 21 W 10/19 59/41/50/T/203/31/ 48 S " " = 37 S AERO 52 MPH S 10/20 56/41/49/-1/0/574/88/ 31 W " " = 25 W 10/21 52/34/43/-7/0/539/83/ 25 W " " = 20 NW 10/22 50/30/40/-10/0/466/72/ 16 NW " " = 13 WNW 10/23 43/31/37/-12/0.27/232/36/ 25 NNW " " = 21 NNW snowfall 1.3 ins. 10/24 48/29/39/-10/0/.../../ 17 WNW " " = 15 NW 10/25 48/31/40/-9/0/.../../ 20 E " " = 17 E 10/26 51/40/46/-2/1.56/000/00/ 32 NW " " = 24 NW 10/27 56/39/48/0/0/.../../ 33 WNW " " = 28 WNW 10/28 50/33/42/-6/0/.../../ 27 WNW " " = 20 NW 10/29 morning low 29 degrees... ** Aero peak gust 47 MPH S *** Aero peak gust 36 MPH NW **** Aero peak gust 60 MPH E RECORDS FOR OCTOBER 29 HIGH 74 IN 1989 LOW 23 IN 1891 PRECIP 2.27 INCHES IN 1953 SNOWFALL TRACE IN 1902,1952 PEAK GUST 65 NNW IN 1963 e = estimated Robert Skilling