BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY TUESDAY, NOVEMBER 29, 2016 ALL TIMES ARE IN EASTERN STANDARD TIME WARM FRONT BRINGS TENTH OF AN INCH OF PRECIP. BEFORE 1:00PM Steady rain began after 10:00AM this morning and brought a total of 0.10 in. by the 1:00PM observation. Fog moved in and limited visibility to 3 1/2 miles, varying 4-10 miles southeast and northwest. Temperatures have been quite seasonable today with an overnight low of 37F and a 6-hour max. of 44F at 1:00PM. Winds began shifting south yesterday afternoon and shifted southeast shortly after midnight, remaining there for most of this morning and early afternoon. Gusts up to 30 MPH have been recorded. 7 A.M. Weather: Broken stratocumulus, overcast stratus, inversion present with an estimated top of 200 feet Temperature: 38F; Dew Point: 30F; Wind: ESE at 13 kts Sea-level pressure: 30.19 ins. Hg, falling then rising Visibility: 20 miles, distant fog in all directions 6-hr Max temp: 40F 6-hr Min temp: 37F 24-hr precip: Trace BHO SA 1155 E31 BKN 49 OVC 20 224/38/30/1213/019/ DSNT FG ALQDS INVSN PRSNT ESTMTD TOP 2 HND R-B35E45/ 8/6// 58001 10040 20037 10 A.M. Weather: Scattered stratus fractus, broken stratus, overcast altostratus Temperature: 41F; Dew Point: 35F; Wind: SE at 14G22 kts, Peak Wind: 26 kts (30 MPH) SE at 9:23AM EST Sea-level pressure: 30.14 ins. Hg, falling, then more quickly Visibility: 30 miles 3-hr precip: Trace BHO SA 1455 38 SCT E54 BKN 84 OVC 30 208/41/35/1314G22/014/ PK WND 1326/23/ 8/72/ 58016 MANUAL 600// 1 P.M. Weather: Light drizzle, fog, overcast stratus Temperature: 44F; Dew Point: 43F; Wind: SE at 14G24 kts, Peak Wind: 26 kts (30 MPH) SE at 12:44PM EST Sea-level pressure: 30.08 ins. Hg, falling, then more quickly Visibility: 3 1/2 miles, except variable 4-10 miles SE and NW 6-hr Max temp: 44F 6-hr Min temp: 38F 6-hr precip: 0.10 in. BHO SA 1755 E4 OVC 3 1/2L-F 186/44/43/1418G24/008/ VSBY 4V10 SE AND NW PK WND 1426/44/ 8/6// 58022 MANUAL 6010/ ASOS 60012 10044 20038 SUMMARY FOR MONDAY, NOVEMBER 28, 2016 TEMPERATURE (DEGREES F) MAX.....44 NORMAL.....45 MIN.....28 NORMAL.....30 MEAN....36 NORMAL.....38 DEPARTURE FROM 30-YEAR NORMAL........................-2 TOTAL DEPARTURE FOR THE MONTH.......................+64 [+2.1 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY..............29 DEPARTURE..........+2 TOTAL HEATING UNITS FOR THE MONTH.............577 DEPARTURE.........-65 TOTAL HEATING UNITS FOR THE SEASON............998 DEPARTURE........-207 TOTAL HEATING UNITS LAST SEASON TO DATE.......939 DIFFERENCE........+59 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY...................22 WNW AT 9:47 A.M. ASOS........................23 NW AT 9:48 A.M. DAVIS.......................21 WNW AT 9:47 A.M. RMY 22 FASTEST MILE FOR YESTERDAY.....................15 WNW AT 9:51 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE..................16 NW AT 9:49 A.M. MAXIMUM 2-MINUTE DAVIS AVERAGE.................16 W AT 9:48 A.M. AVERAGE WIND SPEED AND DIRECTION..............9.4 W ASOS.......................9.6 DAVIS......................8.3 W [260 Deg.] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M...Trace DEPARTURE......-0.17 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........1.51 DEPARTURE......-2.93 ASOS..............1.58 TOTAL PRECIPITATION FOR THE YEAR..........35.87 DEPARTURE.....-12.34 ASOS.............36.28 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0 DEPARTURE.......-0.2 TOTAL SNOWFALL FOR THE MONTH..............Trace DEPARTURE.......-2.0 TOTAL SNOWFALL FOR THE SEASON.............Trace DEPARTURE.......-2.3 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST AERO: Aerovane wind recording system gust RMY: R.M. Young wind gust recording system TSTM: Thunderstorm day (thunder heard some time during day) ....: Data not yet available, records not finalized M: Missing data 11/1 55/29/42/-4/0.00/0.0/600/97 22 SSE AERO 22 S RMY N/A 11/2 69/45/57/+11/0.00/0.0/425/69 24 SSW AERO 24 S RMY 26 11/3 65/49/57/+11/0.01/0.0/025/04 38 W AERO 41 W RMY 38 11/4 56/35/46/+1/0.00/0.0/587/96 26 NW AERO 26 NW RMY 30 11/5 55/32/44/-1/0.00/0.0/250/41 24 W AERO 23 W RMY 24 11/6 49/39/44/-1/0.04/T/091/15 23 N AERO 23 N RMY 23 11/7 46/33/40/-5/0.00/0.0/423/70 21 N AERO 21 N RMY 20 11/8 64/36/50/+6/0.00/0.0/590/98 17 W AERO 15 SSW RMY N/A 11/9 60/43/52/+8/T/0.0/090/15 22 NNW AERO 22 NW RMY N/A 11/10 52/34/43/-1/0.00/0.0/507/85 28 SSW AERO 30 SSW RMY 31 11/11 59/35/47/+4/0.00/0.0/565/95 39 NW AERO 44 NW RMY 45 11/12 47/31/39/-4/0.00/0.0/569/96 38 NW AERO 44 NW RMY 23 11/13 59/37/48/+5/0.00/0.0/519/88 23 W AERO 22 W RMY N/A 11/14 66/44/55/+13/0.00/0.0/547/93 24 WSW AERO 22 WSW RMY 25 11/15 57/46/52/+10/1.23/0.0/000/00 32 ENE AERO 33 ENE RMY 35 11/16 57/45/51/+9/0.04/0.0/000/00 26 W AERO 25 W RMY 28 11/17 55/41/48/+7/0.00/0.0/169/29 25 WNW AERO 29 NW RMY 29 11/18 60/38/49/+8/0.00/0.0/580/100 21 NNE AERO 22 N RMY 23 11/19 53/40/47/+6/0.02/0.0/445/77 18 ENE AERO 18 ENE RMY N/A 11/20 46/29/38/-2/0.04/0.0/006/01 37 SW* AERO 40 SW RMY N/A 11/21 36/28/32/-8/T/T/138/24 40 W AERO 44 W RMY 44 11/22 41/28/35/-5/0.00/0.0/.../.. 35 W AERO 37 W RMY 36 11/23 43/28/36/-3/0.00/0.0/542/95 32 WNW AERO 33 WNW RMY N/A 11/24 41/29/35/-4/0.05/T/000/00 15 NNE AERO 13 NNE RMY N/A 11/25 46/38/42/+3/0.08/0.0/000/00 24 SE AERO 23 SE RMY 25 11/26 45/36/41/+3/0.00/0.0/.../.. 18 NW AERO 17 NW RMY 28 11/27 44/30/37/-1/0.00/0.0/.../.. 26 W AERO 26 WNW RMY 29 11/28 44/28/36/-2/0.00/0.0/.../.. 22 WNW AERO 21 WNW RMY 22 11/29 Low temp since midnight is 36F; normal low is now 29F DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 29 HIGH 66 IN 2011 LOW 6 IN 1901 PRECIP 2.69 INCHES IN 1963 SNOWFALL 6.0 INS IN 2012 PEAK GUST 86 SSE IN 1963 RECORDS FOR NOVEMBER 30 HIGH 67 IN 2006 LOW 7 IN 1887, 1929 PRECIP 2.42 INCHES IN 1944 SNOWFALL 10.2 INS IN 1945 PEAK GUST 90 SSW IN 1963 TODAY'S REPORT PREPARED BY: Cecilia Borries-Strigle