BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 MONDAY SEPTEMBER 16 2002 DISCUSSION.....9/16/2002... 3 P.M. RAINFALL ADDS UP....TO OVER AN INCH THUNDERSTORMS AND HEAVY RAIN EARLY THIS AFTERNOON... DOWNPOURS...BRINGING COPIOUS RAINFALL ONGOING AT 3 P.M. Despite predictions of inches of rainfall for yesterday and last night the total for the 24 hours period ending this morning was but 0.69 inch. A lot more rain is falling this afternoon along with thunderstorms.. added to that total early this afternoon as some briefly heavy rain A cold frontal passage at 1:41 p.m. with quick wind shift from west to north-northeast and northeast. A heavy shower brought 0.10 inch in just 10 minutes ending 1:32 p.m. A high temp. of 76 was recorded at 1:14 p.m. THE OBSERVATIONS FOR TODAY 9/16..... I9/16/2002 MON BHO SA 1155 E4 OVC 11/2VRW-F 134/68/68/2017G22/993/ STRA DRFTG OVR SMT VSBY 1V2 OCNL HIER HIER CLDS VSB RW- BRFLY RW PK WND 1927/04/ 8/72// 52003 6024/ 70069 10068 20066 BHO SA 1455 5 SCT E20 BKN 35 BKN 100 OVC 10 137/71/69/2313/994/ LINE TCU/SML CBS XTDNG WNW-N BINOVC HIER CLDS VSB NW-N DENSE CI NW-N RWU S-SW VSBY S-SW 8 NW-N 15/ 8/372/ 52003 6000/ BHO SA 1755 -X 30 OVC 1F 135/63/63/0313G18/993/ F5 STRA DRFTNG OVR SMT TCU W OVC PTLY THN VSBY LWRD RPDLY CDNS VRBL VSBY NE 1/4 WSW 6 RB15E35 BRFLY RW+ WNDSHFT 42 FROPA/ 8/2/// 56002 6010/ 10076 20063 THE DATA RECORDED FOR SUNDAY SEPTEMBER 15 .... TEMPERATURES....CALENDAR DAY MIDNIGHT TO MIDNIGHT.... EASTERN STANDARD TIME... MAX: 78 MIN: 67 // ASOS MAX: 78 ASOS MIN: 67 MEAN: 73 [+10] NORMAL HIGH/LOW/MEAN: 73/55/64 SEPTEMBER DEPARTURE TO DATE: +59 DEG. The month is averaging 3.7 degrees WARMER THAN NORMAL... PRECIPITATION....ON 09/16 AS OF 8 A.M. EDT 24 HRS ENDING 8 A.M.......0.69 INS. ASOS......................missing SEPTEMBER TOTAL TO DATE...1.99 INS. DEPARTURE FROM NORMAL....-0.04 INS. SEPTEMBER ASOS TOTAL......missing PRECIP. TOTAL YEAR 2002...32.55 INS. DEPARTURE FROM NORMAL.....-2.95 INS. ASOS TOTAL FOR 2002.......N/A WIND DATA...SUNDDAY SEPTEMBER 15, 2002 PEAK GUST ASOS: 36 MPH SSW AT 12:30 P.M. EDT PEAK GUST 420C: 37 MPH SSW AT 12:30 P.M. EDT PEAK GUST AERO: 38 MPH SSW AT 12:30 P.M. EDT 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/.../../ 22 NW/ TSTM 2 MIN MAX = 17 NW 9/5 73/56/65/-1/0/.../../ 28 NW ASOS 2 MIN MAX = 22 NW 9/6 77/52/65/0/0/.../../ 21 NNW " 2 MIN MAX = 16 NW 9/7 83/61/72/+8/0/.../../ 17 SW " " = 14 SW 9/8 87/61/74/+9/0/.../../ 21 SW " " = 17 SW 9/9 91/65/78/+14/0/.../../ 20 WSW " " = 16 WSW 9/10 89/67/78/+14/0/.../../ 28 SSW " " = 22 SSW 9/11 77/54/66/+2/0/.../../ 58 NW " " = 44 WNW/ Aero gust 62 MPH WNW 9/12 69/48/59/-4/0/.../.../ 37 NW " " = 28 NW / Aero gust 40 MPH WNW RECORDS FOR SEPTEMBER 16 HIGH 91 IN 1939/1941 LOW 39 IN 1984 PRECIP 5.12 INS IN 1933 PEAK GUST 59 MPH SSE IN 1999 RECORDS FOR SEPTEMBER 17 HIGH 86 IN 1991 AND EARLIER YEARS LOW 38 IN 1959 PRECIP 2.73 INS IN 1933 PEAK GUST 60 MPH WNW IN 1999 e = estimated Robert Skilling