BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, NOVEMBER 15, 2009
ALL DATA IN EASTERN STANDARD TIME
MID-NOVEMBER NOR'EASTER BRINGS OVER
2 INCHES OF RAINFALL BREAKING THE
DAILY RAINFALL RECORD FOR NOVEMBER 14TH
PEAK WIND GUSTS REACHED NEAR 40 MPH
The mid-November nor'easter which began
with overcast, windy but dry conditions
on November 13th, became soaking wet and
continued windy early on the 14th. The
record daily rainfall total for the day,
the calendar date of November 14th, of
1.87 inches set in 1972 was broken. The
exact amount has yet to be calculated
but it will be around 2.08 inches. The
rain came down heaviest during the three
hours ending at 10 a.m. A total of 0.90
inch fell during that period. Rain changed
to mostly drizzle later in the day. The
storm total through 7 a.m. today is 2.13 ins.
after some more light drizzle and light
rain shower during the early hours.
Peak wind gusts reached 39 MPH from the
NNE on November 13 and 39 MPH from the NE
early on November 14 before veering to the
east and diminishing during the afternoon.
Temperatures rose through the 50's to a
maximum of 59F just before 7 p.m.; that was
unusually mild for a November noreaster.
Today's observations:
7 A.M.
Weather: Sky obscured by fog, light drizzle ended
during the hour
Temperature: 52F, Dew point: 52F, Wind: NNW at 7 kts,
Sea-level pressure: 29.90 inches Hg, rising
Visibility: 1/16 mile
6-hour minimum temp: 52F
24-hour precipitation: 1.82 inches
BHO SA 1155 W2 X 1/16F 125/52/52/3407/990/
LEUKN/ 8//// 53007 ASOS 60005
ASOS 70188 MANUAL 70182 10054 20052
10 A.M.
Weather: Sky obscured by fog, light drizzle ended at 9:50 a.m.,
sky brightening, sun occasionally dimly visible
Temperature: 54F, Dew point: 54F, Wind: NW at 6 kts,
Sea-level pressure: 29.91 inches Hg, steady
Visibility: 1/16 mile, dense fog
3-hourly precipitation: 0.01 inch
BHO SA 1455 W2 X 1/16F 130/54/54/3206/991/
SKY BRGHTNG SUN OCNL DMLY VSB LE50/ 8////
51005 MANUAL 6001/
WEATHER SUMMARY FOR SATURDAY, NOVEMBER 14
TEMPERATURE (DEGREES F)
MAX.....59 NORMAL.....50
MIN.....49 NORMAL.....35
MEAN....54 NORMAL.....42
DEPARTURE FROM 30-YEAR AVERAGE............+12
TOTAL DEPARTURE FOR THE MONTH.............+44 [+2.9 DEGREES/DAY]
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............11 DEPARTURE.......-12
TOTAL HEATING UNITS FOR THE MONTH...........243 DEPARTURE.......-45
TOTAL HEATING UNITS FOR THE SEASON..........864 DEPARTURE.......-15
TOTAL HEATING UNITS LAST SEASON TO DATE.....777 DIFFERENCE......+87
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY.............39 NE AT 7:15 A.M.
AEROVANE..............38 NE AT 7:15 A.M.
ASOS..................39 NE AT 7:16 A.M.
DAVIS.................40 ENE AT 7:16 A.M.
FASTEST MILE FOR YESTERDAY...............26 NE AT 7:35 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE............28 NE AT 7:36 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE...........28 NE AT 7:36 A.M.
AVERAGE WIND SPEED AND DIRECTION.......15.2 NE
ASOS................14.4
DAVIS...............14.5 ENE [055 DEG]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....1.82 DEPARTURE....+1.66
ASOS..............1.88
TOTAL PRECIPITATION FOR MONTH ............2.19 DEPARTURE....+0.03
ASOS..............2.23
TOTAL PRECIPITATION FOR THE YEAR..........47.30 DEPARTURE....+3.12
ASOS.............48.54
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0 DEPARTURE.....-0.1
TOTAL SNOWFALL FOR THE MONTH................0.0 DEPARTURE.....-1.1
TOTAL SNOWFALL FOR THE SEASON...............3.0 DEPARTURE.....+1.7
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 2009 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust when significant
TSTM: Thunderstorm day (thunder heard some time during day)
....: Data not yet available, records not finalized
11/1 58/44/51/+4/0.05/167/27 22 WNW
11/2 49/42/46/0/T/099/16 29 NE
11/3 57/36/47/+1/0/474/77 32 W AERO 32 MPH W
11/4 49/34/42/-4/0/514/84 24 W
11/5 46/36/41/-4/0.01/006/01 21 N
11/6 47/31/39/-6/0/419/69 38 WNW AERO 38 MPH WNW
11/7 49/29/39/-6/0/575/95 33 S
11/8 66/42/54/+10/0/549/91 31 SSW
11/9 68/49/59/+15/0/486/81 35 S AERO 35 MPH S
11/10 62/50/56/+12/0/000/00 23 SW
11/11 50/43/47/+4/0/113/19 31 NNE
11/12 49/41/45/+2/0/.../.. 34 NE AERO 31 MPH NNE
11/13 49/44/47/+4/0/000/00 39 NNE AERO 37 MPH NNE
11/14 59/49/54/+12/2.08*/000/00 39 NE AERO 38 MPH NE
11/15 our low temperature for this morning was 52F; normal is 35F
NEW DAILY RECORD FOR NOVEMBER 2009
A new daily rainfall record is set for November 14 at about 2.08 inches;
the previous record was 1.87 inches in 1972. *
* the exact new record amount yet to be calculated
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR NOVEMBER 15
HIGH 74 IN 1993
LOW 15 IN 1933
PRECIP 1.66 INCHES IN 1981
SNOWFALL 4.0 IN 1967
PEAK GUST 65 SSE IN 2008
RECORDS FOR NOVEMBER 16
HIGH 73 IN 1927
LOW 8 IN 1933
PRECIP 2.25 INCHES IN 1981
SNOWFALL 2.0 IN 1913
PEAK GUST 78 S IN 1989
TODAY'S REPORT PREPARED BY: Robert Skilling