BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 MONDAY OCTOBER 21 2002 DISCUSSION FOR 10/21/2002....AT 2 P.M. (13E ) OCTOBER COOLING TREND CONTINUES... COOLER THAN NORMAL BY ONE DEGREE DURING THE PAST TWO WEEKS... Despite the fact that the first five days of October were very much on the warm side of normal a persistent cooling trend starting October 6th has continued and resulted in temperatures averaging one degree BELOW normal over the past two weeks. This is quite a reversal of the warm temperature regime that prevailed over the past two months. The month of October is now only ONE degree on the plus side of normal. The month is still slightly on the dry side with 2.17 inches now 0.63 inch BELOW normal. THE OBSERVATIONS FOR TODAY.... 10/21/2002 MON 8 A.M. BHO SA 1155 150 SCT 180 -BKN 250 -OVC 40 174/39/33/2714/004/ FEW CC OVHD BINOVC W-N-NE/ 8/078/ 53006 10043 20037 11 A.M. BHO SA 1455 180 SCT 200 SCT 250 -SCT 65 185/49/30/2915G22/007/ NMRS SC FRMG W-NW FEW SC ALQDS FEW CC DENSE CI E-S/ 8/542/ 50011 2 P.M. BHO SA 1755 150 SCT 180 SCT 220 SCT 300 -SCT 80 181/51/27/3014G22/006/ SC ALQDS ACSL/CCSL E-S-W WND 26V32/ 8/549/ 58004 10052 20039 THE DATA RECORDED FOR SUNDAY OCTOBER 20 TEMPERATURES ARE CALENDAR DAY MIDNIGHT TO MIDNIGHT EASTERN STANDARD TIME MAX: 56 MIN: 41 ASOS MAX: 56 ASOS MIN: 41 MEAN: 49 [- 1] NORMAL HIGH/LOW/MEAN: 59/41/50 OCTOBER DEPARTURE TO DATE: + 23 deg. OCTOBER AVERAGE: ONE DEGREE WARMER THAN NORMAL PRECIPITATION FOR 10/21 AS OF 8 A.M. EDT 24 HRS ENDING 8 A.M.......0.00 INS. ASOS......................0.00 INS. OCTOBER TOTAL ...........2.17 INS. DEPARTURE FROM NORMAL....-0.63 INS. OCTOBER ASOS TOTAL........2.12 INS. PRECIP. TOTAL YEAR 2002...37.65 INS. DEPARTURE FROM NORMAL.....-2.75 INS. ASOS TOTAL FOR 2002....... n/a WIND DATA FOR SUNDAY OCTOBER 20, 2002 PEAK GUST ASOS: 30 MPH W AT 1:07 P.M. PEAK GUST 420C: 31 MPH W AT 1:15 P.M. ** PEAK GUST AERO: 33 MPH W AT 1:10 P.M. ** last of several occurrences 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/.../../ 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/.../../ 33 NW " " = 26 NW 10/15 51/33/42/-10/0/.../../ 20 ESE " " = 20 ESE 10/16 62/44/53/+2/1.08/000/00/ 59 E " " = 40 ENE **** 10/17 62/43/53/+2/.../../ 43 WSW " " = 35 W 10/18 55/41/48/-3/.../../ 27 WNW " " = 21 W 10/19 59/41/50/T/.../../ 48 S " " = 37 S AERO 52 MPH S 10/20 56/41/49/-1/0/.../../ 31 W " " = 25 W 10/21 morning low 37 degrees... ** Aero peak gust 47 MPH S *** Aero peak gust 36 MPH NW **** Aero peak gust 60 MPH E RECORDS FOR OCTOBER 21 HIGH 79 IN 1979 LOW 24 IN 1974 PRECIP 2.39 IN 1944 SNOWFALL TRACE IN 1895,1907,1940 PEAK GUST 69e MPH S IN 1976 RECORDS FOR OCTOBER 22 HIGH 85 IN 1979 LOW 22 IN 1940 PRECIP 1.37 IN 1898 SNOWFALL trace IN 1969 PEAK GUST 67 MPH ESE IN 1988 e = estimated Robert Skilling