BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 SUNDAY SEPTEMBER 29 2002 DISCUSSION FOR 9/29/2002 NOON EDT After the lousy dreary/tropical weather we have seen in the past few days, its about time we see some typical fall weather. Lows last night fell into the 40's throughout the area. Here at the Hill the mercury dropped to 46 in the shelter and a report from Dedham said the mercury fell to 41. Nothing but clear skies this morning, except for a thin smoke layer that always burdens the horizon early in the day. Visibility is up to around 90 miles as the Monadnocks are visible in the far NW skies. Today we can expect cool temperatures in the lower to mid 60's, but a warm up for the beginning of October may be on the way as temperatures may climb to 80 degrees by early next week. THE OBSERVATIONS FOR TODAY 9/29 8 A.M. BHO SA 1155 CLR 65 248/49/40/0110/026/ FEW CI SSW THN K LYR ALNG HRZN/ 8/001/ 53014 10050 20046 11 A.M. BHO SA 1455 20 SCT 90 258/58/43/1006/029/ MDT CU ALQDS WND LGT AND VRB/ 8/300/ 51010 THE DATA RECORDED FOR SATURDAY SEPTEMBER 28 TEMPERATURES ARE CALENDAR DAY MIDNIGHT TO MIDNIGHT EASTERN STANDARD TIME MAX: 72 MIN: 51 ASOS MAX: 72 ASOS MIN: 51 MEAN: 62 [+4] NORMAL HIGH/LOW/MEAN: 67/49/58 SEPTEMBER DEPARTURE TO DATE: +128 DEGREES SEPTEMBER AVERAGE 4.6 DEGREES ABOVE NORMAL PER DAY PRECIPITATION FOR 09/29 AS OF 8 A.M. EDT 24 HRS ENDING 8 A.M.......0.00 IN ASOS......................0.00 IN SEPTEMBER TOTAL TO DATE...4.92 IN (standard gage) DEPARTURE FROM NORMAL....+1.07 IN SEPTEMBER ASOS TOTAL......N/A PRECIP. TOTAL YEAR 2002...35.48 INS. DEPARTURE FROM NORMAL.....-1.84 INS. ASOS TOTAL FOR 2002.......N/A WIND DATA FOR SATURDAY SEPTEMBER 28, 2002 PEAK GUST ASOS: 48 MPH NE AT 12:02 P.M. EST PEAK GUST 420C: 50 MPH NE AT 12:51 P.M. EST PEAK GUST AERO: 52 MPH NE AT 12:51 P.M. EST SEPT. 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 TSTM = thunderstorm day ASOS TWO MINUTE MAXIMUM WIND ON THE RIGHT... ASOS IS AUTOMATED SURFACE OBSERVING SYSTEM 9/1 66/52/59/-8/0.01/46/06/ 18 ENE ASOS 2 MIN MAX = 15 ENE 9/2 63/59/61/-5/0.87/000/00/ 28 NNE ASOS 2 MIN MAX = 20 NE 9/3 68/63/66/0/0.30/000/00/ 25 NE ASOS 2 MIN MAX = 17 NE 9/4 83/64/74/+8/0.12/406/52/ 22 NW/ ASOS 2 MIN MAX = 17 NW/ TSTM 9/5 73/56/65/-1/0/724/93/ 28 NW ASOS 2 MIN MAX = 22 NW 9/6 77/52/65/0/0/767/99/ 21 NNW " 2 MIN MAX = 16 NW 9/7 83/61/72/+8/0/757/98/ 17 SW " " = 14 SW 9/8 87/61/74/+9/0/754/98/ 21 SW " " = 17 SW 9/9 91/65/78/+14/0/729/95/ 20 WSW " " = 16 WSW 9/10 89/67/78/+14/0/504/66/ 28 SSW " " = 22 SSW 9/11 77/54/66/+2/0/251/33/ 58 NW " " = 44 WNW/ Aero gust 62 MPH WNW 9/12 69/48/59/-4/0/759/100/ 37 NW " " = 28 NW / Aero gust 40 MPH WNW 9/13 79/51/65/+2/0/703/93/ 32 WSW " " = 24 WSW 9/14 83/61/72/+9/0/572/76/ 29 S " " = 23 S 9/15 78/67/73/+10/0.42/023/03/ 37 SSW " " = 30 SSW 9/16 76/58/56/+5/1.01/000/00/ 32 S " " = 21 S 9/17 73/57/65/+3/0.00/.../../ 17 NNW " " = 14 NNW 9/18 74/55/64/+4/0.00/.../../ 21 S " " = 16 SSW 9/19 77/57/67/+6/0.00/.../../ 25 SSW " " = 21 S 9/20 77/57/67/+6/0.00/.../../ 28 SSW " " = 23 SSW 9/21 80/62/71/+11/0.00/.../../ 27 SSW " " = 21 SSW 9/22 81/65/73/+13/0.85/.../../ 27 S " " = 23 S/ TSTM 9/23 75/63/69/+9/0.62/.../../ 31 S " " = 23 S/ TSTM 9/24 63/56/60/+1/0/.../../ 28 NE " " = 18 NE 9/25 68/54/61/+2/0/.../../ 15 ENE " " = 13 NE 9/26 62/55/59/0/0.21/000/00/ 20 NE " " = 14 NE 9/27 71/55/63/+5/0.45/.../../ 41 S " " = 36 S 9/28 72/51/62/+4/0.27/.../../ 50 S " " = 38 S 9/29 MORNING LOW 46 RECORDS FOR SEPTEMBER 29 HIGH 85 IN 1952 LOW 28 IN 1914 PRECIP 2.61 INS. IN 1907 PEAK GUST 51e NW IN 1941 & S IN 1967 RECORDS FOR SEPTEMBER 30 HIGH 84 IN 1986 LOW 31 IN 1992 PRECIP 1.93 IN 1946 PEAK GUST 58 SSE IN 1999 e = estimated Andrew Hoell