BLUE HILL METEOROLOGICAL OBSERVATORY, MILTON, MASSACHUSETTS 02186 ELEVATION 635 FT. ABOVE MSL....10 MILES SSW OF BOSTON, MA THURSDAY APRIL 04 2002 PLEASE VISIT OUR WEB SITE AT: http://www.bluehill.org/ DAILY DISCUSSION.....4/4/2002 SHOWERS BRING 0.16 INCH OF RAIN LATE WEDNESDAY... Showers began just after 5 p.m. on Wednesday and lasted till just after 10 p.m. with a total rainfall of 0.16 inch. A windshift with the cold front occurred at about 5:15 p.m. with peak gust to 52 MPH WNW on one of our wind systems. The peak gust on the Aerovane system was 45 MPH WNW right after the wind shifted. Freezing cold was recorded this morning at 31 degrees... TODAY'S OBS..... 4/4/2002 THU 7 A.M. BHO SA 1155 CLR 60 200/35/26/3008/012/ SC DSNT WSW-WNW ALG HRZN/ 8/500/ 51021 70016 10035 20031 10 A.M. BHO SA 1455 40 SCT 60 204/43/23/2714G20/013/ WND 25V32/ 8/500/ 50004 1 P.M. BHO SA 1755 50 SCT 70 198/46/21/2914G25/011/ WND 26V32/ 8/500/ 58006 10048 20035 THE DATA RECORDED FOR WEDNESDAY APRIL 3... TEMPERATURES....CALENDAR DAY MIDNIGHT TO MIDNIGHT.... MAX : 66 MIN: 36 // ASOS MAX: 66 ASOS MIN: 36 NORMAL HIGH AND LOW: 51/33 MEAN 51 [ + 9 ] TOTAL DEPARTURE FOR APRIL TO DATE: + 19 deg. MARCH AVERAGED 2.4 DEGREES WARMER THAN NORMAL..... PRECIPITATION....ON 04/04 AS OF 7 A.M. 24 HRS ENDING 7 A.M. . 0.16 IN. ASOS......................0.17 INS. TOTAL FOR APRIL TO DATE...1.18 INS. STD GAGE TOTAL FOR MARCH . .......4.25 INS. STD. GAGE DEP. FROM NORMAL.........-0.54 INS. ASOS MARCH TOTAL..........4.01 INS. PRECIP. TOTAL YEAR 2002: 11.38 INS. DEPARTURE FROM NORMAL....-2.70 INS. SNOWFALL.... ON 04/04 AS OF 7 A.M. 24 HRS ENDING 7 A.M.... 0.0 INS. MARCH TOTAL...............6.8 INS. SEASONAL TOTAL TO DATE. 39.0 INS. WIND DATA....FOR 04/03... PEAK GUST ASOS: 43 MPH S AT 7:13 A.M. PEAK GUST 420C: 43 MPH S AT 7:13 A.M. PEAK GUST AERO: 45 MPH WNW AT 5:13 P.M. APRIL 2002 PRELIMINARY DATA....ALL IS CALENDAR DAY DATA.... MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUNSHINE/ OFFICIAL 420C WIND GUST Aero = Aerovane recording wind system 4/1 56/38/47/+6/1.02/0/244/32/ 54 W 4/2 59/33/46/+4/0/0/582/76/ 37 W 4/3 66/36/51/+9/0.16/0/138/18/ 43 S (Aero 45 MPH WNW ) 4/4 morning low temp. 31 RECORDS FOR APRIL 04 HIGH 71 IN 1950 LOW 12 IN 1954 PRECIP 1.45 IN IN 1987 SNOWFALL: 3.7 INS. IN 1975 PEAK GUST 80 MPH WNW IN 1963 RECORDS FOR APRIL 05 HIGH 81 IN 1928 LOW 15 IN 1995 PRECIP 2.15 INS 1987 SNOWFALL: 4.0 INS. 1898 PEAK GUST 76 MPH WNW IN 1963 e = estimated Robert Skilling