BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 THURSDAY SEPTEMBER 27 2002 DISCUSSION FOR 9/27/2002....2 P.M. A GLOOMY AND COOL DAY.... The summit's been in the low clouds all day with light rainfall.... Rainfall has totaled over a half inch by early this afternoon with northeast winds which gusted over 20 MPH for awhile this morning. THE OBSERVATIONS FOR TODAY.... 9/27/2002 FRI BHO SA 1155 W2 X 1/16R-F 153/55/55/0514G23/998/ 8///// 58008 6020/ 70045 10057 20055 BHO SA 1455 W2 X 1/16L-F 143/57/57/0510G16/995/ 8///// 58010 6007/ BHO SA 1755 W2 X 1/16R-F 123/58/58/0609/989/ 8///// 58020 6010/ 10058 20055 THE DATA RECORDED FOR WEDNESDAY SEPTEMBER 25 TEMPERATURES ARE CALENDAR DAY MIDNIGHT TO MIDNIGHT EASTERN STANDARD TIME MAX: 62 MIN: 55 ASOS MAX: 62 ASOS MIN: 55 MEAN: 59 [+ 0] NORMAL HIGH/LOW/MEAN: 68/50/59 SEPTEMBER DEPARTURE TO DATE: +119 deg. SEPTEMBER AVERAGE NOW: 4.4 DEGREES WARMER THAN NORMAL PRECIPITATION FOR 09/27 AS OF 8 A.M. EDT 24 HRS ENDING 8 A.M.......0.45 INS. ASOS......................0.43 INS. SEPTEMBER TOTAL TO DATE...4.65 INS. (standard gage ) DEPARTURE FROM NORMAL....+1.08 INS. SEPTEMBER ASOS TOTAL......N/A PRECIP. TOTAL YEAR 2002...35.21 INS. DEPARTURE FROM NORMAL.....-1.83 INS. ASOS TOTAL FOR 2002.......N/A WIND DATA FOR THURSDAY SEPTEMBER 26, 2002 PEAK GUST ASOS: 20 MPH NE AT 11:09 P.M. EST PEAK GUST 420C: 20 MPH NE AT 11:08 P.M. EST PEAK GUST AERO: 21 MPH NE AT 11:08 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 morning low temp. 55 RECORDS FOR SEPTEMBER 27 HIGH 84 IN 1998 LOW 32 IN 1947 PRECIP 2.26 IN 1962 PEAK GUST 100 SSE IN 1985 (HURRICANE GLORIA ) RECORDS FOR SEPTEMBER 28 HIGH 82 IN 1959 LOW 33 IN 1897,1947 PRECIP 1.53 IN 1956 PEAK GUST 69 NE IN 1962 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 Robert Skilling