BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY MONDAY, NOVEMBER 18, 2013 ALL TIMES ARE IN EASTERN STANDARD TIME SOME SIGNIFICANT RAINFALL EARLY TODAY TEMPERATURES RISE TO MID-60'S Light rain showers and some light drizzle began late Sunday but only amounted to 0.06 inch by midnight with an additional 0.04 through 6:00 A.M. this morning. However, moderate to occasionally heavy rain and rain showers fell during the hour from 6:00 to 7:00 A.M. bringing an additional 0.22 inch for an event total of 0.32 inch through 7:00 A.M. An additional 0.03 gave an event total of 0.35 inch. High temperatures have risen into the very mild mid-60's early this afternoon after an extremely mild morning low of 57F. Today's Observations: 7 A.M. Weather: Broken stratofractus, overcast nimbostratus, light rain, moderate to heavy rain past hour becoming light rain at 6:54 A.M., thin fog Temperature: 61F; Dew Point: 61F; Wind: SSW at 22G36 kts, Wind Peak wind S at 37 kts at 6:37 A.M., Wind: Direction veering gradually, Sea-level pressure: 29.57 ins. Hg, falling then more slowly Visibility: 2 1/2 miles, light rain and fog 6-hr min temp: 58F 24-hr rainfall: 0.32 inch BHO SA 1155 E6 BKN 18 OVC 21/2R-F 013/61/61/2022G36/957/ VSBY INCRSNG R/R+ PST HR BCMG R-54 PK WND 1937/37/ WND GRDLY VEERING/ 8/72/ 56042 MANUAL 60025 ASOS 60026 MANUAL 70032 ASOS 70032 10062 20058 10 A.M. Weather: Scattered stratocumulus, broken altocumulus, few cumulus and line of moderate cumulus distant NW-NNW, altocumulus castellanus and floccus and lenticularis in vicinity S-SW, rain ended at 9:10 A.M. Temperature: 58F; Dew Point: 47F; Wind: WSW at 18G24 kts, Wind: Direction variable SSW-W Sea-level pressure: 29.57 ins. Hg, rising slightly Visibility: 60 miles, light distant haze, mountain in cloud 70 NW, virga distant E 3-hr precip: 0.03 inch BHO SA 1455 55 SCT E95 BKN 60 015/58/47/2418G24/957/ FEW CU AND LINE MDT CU DSNT NW-NNW FEW ACSL/ACC VC STN S-SW VIRGA DSNT E WND 21V27 RE10/ 8/880 51002 MANUAL 6003/ ASOS 60004 1 P.M. Weather: Clear, few distant small cumulus, cumulus fractus, altocumulus layer distant E-SE, altocumulus castellanus distant ENE-ESE, few altocumulus lenticularis NE and distant SSE-SSW Temperature: 64F; Dew Point: 43F; Wind: WSW at 11 kts Sea-level pressure: 29.56 ins. Hg, falling slightly Visibility: 80 miles, light distant haze 6-hr max temp: 64F 6-hr precip: 0.03 inch BHO SA 1755 CLR 80 009/64/43/2411/956/ FEW DSNT CUFRA/SML CU AC LYR DSNT ENE-SSE ACC DSNT ENE-ESE FEW ACSL NE AND DSNT SSE-SSW LGT DSNT HZ WND 20V27/ 8/180 56006 ASOS 60004 MANUAL 6003/ 10064 20057 WEATHER SUMMARY FOR SUNDAY, NOVEMBER 17, 2013 TEMPERATURE (DEGREES F) MAX.....59 NORMAL.....50 MIN.....42 NORMAL.....33 MEAN....51 NORMAL.....41 DEPARTURE FROM 30-YEAR NORMAL.....................+10 TOTAL DEPARTURE FOR THE MONTH......................+8 [+0.3 DEGREE/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY..............14 DEPARTURE........-10 TOTAL HEATING UNITS FOR THE MONTH.............351 DEPARTURE.........-8 TOTAL HEATING UNITS FOR THE SEASON............828 DEPARTURE........-94 TOTAL HEATING UNITS LAST SEASON TO DATE.......791 DIFFERENCE.......+37 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY..................23 SSE AT 11:33 P.M. AERO.......................25 SSE AT 11:51 P.M. * ASOS.......................25 S AT 11:33 P.M. DAVIS......................24 SSE AT 11:33 P.M. RMY N/A FASTEST MILE FOR YESTERDAY....................18 SSE AT 11:20 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.................17 S AT 11:59 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE................17 SSE AT 11:21 P.M. AVERAGE WIND SPEED AND DIRECTION............10.5 SSE ASOS......................9.9 DAVIS.....................9.5 SSE [150 degrees] * last of several occurrences... PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.32 DEPARTURE............+0.16 ASOS..............0.32 TOTAL PRECIPITATION FOR THE MONTH..........0.98 DEPARTURE............-1.69 ASOS..............0.96 TOTAL PRECIPITATION FOR THE YEAR..........43.99 DEPARTURE............-2.45 ASOS..............N/A** **ASOS malfunctioned during storm on 2/8-9, leading to erroneous totals SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M.......0.0 DEPARTURE.............-0.1 TOTAL SNOWFALL FOR THE MONTH.............0.2 DEPARTURE.............-0.5 TOTAL SNOWFALL FOR THE SEASON............0.2 DEPARTURE.............-0.8 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 2013 CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST AERO: Aerovane wind recording system gust RMY: RMY = R.M. Young wind gust recording system added 8/9/2011 TSTM: Thunderstorm day (thunder heard some time during day) ....: Data not yet available, records not finalized 11/1 68/56/62/+16/0.10/0.0/012/02 60 SSW AERO N/A N/A RMY 66 11/2 65/49/57/+11/0.00/0.0/296/48 22 WSW AERO N/A N/A RMY 23 11/3 49/30/40/-6/0.06/T/135/22 23 N AERO N/A N/A RMY N/A 11/4 42/27/35/-10/0.00/0.0/588/96 24 NNE AERO N/A N/A RMY 25 11/5 50/29/40/-5/0.00/0.0/487/80 16 SSW AERO N/A N/A RMY 17 11/6 59/40/50/+5/0.00/0.0/419/69 30 SSW AERO 31 MPH SSW RMY 33 11/7 65/37/51/+6/0.31/0.0/079/13 33 SW AERO 37 MPH SW RMY 37 11/8 48/31/40/-4/T/T/0.0/421/70 37 WNW AERO 37 MPH WNW RMY 39 11/9 44/29/37/-7/0.00/0.0/366/61 25 WNW AERO 25 MPH WNW RMY 29 11/10 52/40/46/+2/0.08/0.0/108/18 31 WNW AERO 33 MPH WNW RMY N/A 11/11 51/36/44/+1/0.00/0.0/.../.. 36 WNW AERO 37 MPH WNW RMY 37 11/12 48/24/36/-7/0.11/0.2/000/00 42 SW AERO 43 MPH SW RMY 43 11/13 35/21/28/-15/0.00/0.0/.../.. 29 NW AERO 30 MPH NW RMY 30 11/14 49/26/38/-4/0.00/0.0/.../.. 25 SW AERO 25 MPH SW RMY 28 11/15 59/38/49/+7/0.00/0.0/.../.. 24 S AERO 25 MPH S RMY 26 11/16 59/40/50/+8/0.00/0.0/.../.. 20 WSW AERO 20 MPH WSW RMY N/A 11/17 59/42/51/+10/..../.../000/00 23 SSE AERO 25 MPH SSE RMY N/A 11/18 morning low temp: 58F; the normal low is now 33F DAILY RECORDS FOR NOVEMBER 2013 None so far. DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 18 HIGH 72 IN 1963 LOW 10 IN 1936 PRECIP 1.80 INS IN 1929 SNOWFALL 6.3 INS IN 1980 PEAK GUST 60 SW IN 1987 RECORDS FOR NOVEMBER 19 HIGH 72 IN 1941 LOW 10 IN 1936 PRECIP 1.92 INCHES IN 1926 SNOWFALL 11.0 INS IN 1986 PEAK GUST 59e E IN 1945 TODAY'S REPORT PREPARED BY: Robert Skilling