Friday, November 28, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, NOVEMBER 28, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
LIGHT SNOWFALL BRINGS ABOUT 2 INCHES OF NEW SNOW
CLEARING AND COOL THIS AFTERNOON
Light, fluffy snow fell here at the summit last night and into this morning.
At the 7:00 A.M. observation, 1.5 inches of new snow were measured, and an
additional 0.4 inches fell after that time for a total of 1.9 inches of snow.
The total melted precipitation was 0.10 inches, which equates to a 19:1
snow to liquid ratio.
Behind the snowfall, there has been clearing this afternoon, with the sky
generally partly cloudy, dotted by stratocumulus clouds. Temperatures
remain on the cool side, hovering at or below the freezing mark for most
of the day, with 32F being the high temperature so far. Winds have been
steady at about 10mph out of the NW, occasionally gusting to 20-25mph.
The visibility has improved from a snowy 5-10 miles this morning to a clear
65 miles this afternoon.
Today’s Observations:
7 A.M.
Weather: Light snow, scattered stratus fractus, overcast nimbostratus
Temperature: 27F; Dew Point: 24F; Wind: NW at 11 kts
Sea-level pressure: 30.00 ins. Hg, rising then rising more rapidly
Visibility: 8 miles, light snow and fog
6-hr max temp: 27F
6-hr min temp: 26F
24-hr precip: 0.08 in.
24-hr snowfall: 1.5 in.
BHO SA 1155 10 SCT E30 OVC 8S-F 160/27/24/3311/000/ NEW SNW PST 24 HRS
1.5 INS/ 8/72/ 4/002 53015 ASOS 60003 70007 MANUAL 70008 10027 20026
10 A.M.
Weather: Scattered stratus fractus, broken stratocumulus broken
altostratus, cumulus distant SSE-NW, Sun dimly visible
Temperature: 28F; Dew Point: 23F; Wind: NW at 10 kts
Sea-level pressure: 30.04 ins. Hg, rising then rising more slowly
Visibility: 50 miles, except 30 miles SE
3-hr precip: 0.02 in
3-hr snowfall: 0.4 in.
BHO SA 1455 10 SCT E15 BKN 100 BKN 50 174/28/23/3310/004/ CU DSNT SSE-NW
SUN DMLY VSBL NEW SNW PST 3 HRS 0.4 INS VSBY SE 30/ 8/570 51014
ASOS 60002 MANUAL 60002
1 P.M.
Weather: Scattered stratocumulus, scattered altocumulus
Temperature: 32F; Dew Point: 22F; Wind: NW at 11 kts
Sea-level pressure: 30.03 ins. Hg, falling slightly
Visibility: 65 miles
6-hr max temp: 32F
6-hr min temp: 26F
6-hr precip: 0.02 in.
BHO SA 1755 35 SCT 100 SCT 65 171/32/22/3211/003/ 8/550 58003
ASOS 60002 MANUAL 60002 10032 20026
SUMMARY FOR THURSDAY, NOVEMBER 27, 2014
TEMPERATURE (DEGREES F)
MAX…..36 NORMAL…..46
MIN…..27 NORMAL…..30
MEAN….32 NORMAL…..38
8DEPARTURE FROM 30-YEAR NORMAL…………………….-6
TOTAL DEPARTURE FOR THE MONTH…………………….-23 [-1.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..33 DEPARTURE………..+6
TOTAL HEATING UNITS FOR THE MONTH………….637 DEPARTURE……….+22
TOTAL HEATING UNITS FOR THE SEASON………..1059 DEPARTURE………-119
TOTAL HEATING UNITS LAST SEASON TO DATE……1107 DIFFERENCE………-48
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………29 N AT 1:21 A.M.
ASOS…………………..37 N AT 1:21 A.M.
DAVIS………………….29 N AT 1:21 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………..22 NNW AT 1:00 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..23 NNW AT 1:01 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….19 NNW AT 1:01 A.M.
AVERAGE WIND SPEED AND DIRECTION………….9.6 NW
ASOS………………….9.5
DAVIS…………………7.4 NW (323 degrees)
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.08 DEPARTURE…..-0.08
ASOS…………..0.07
TOTAL PRECIPITATION FOR THE MONTH……….6.19 DEPARTURE…..+1.92
ASOS…………..6.30
TOTAL PRECIPITATION FOR THE YEAR……….47.74 DEPARTURE…..-0.30
ASOS………….48.17
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….1.5 DEPARTURE……+1.4
TOTAL SNOWFALL FOR THE MONTH…………….8.3 DEPARTURE……+6.5
TOTAL SNOWFALL FOR THE SEASON……………8.3 DEPARTURE……+6.2
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/SUN(MIN.)/SUN(%)/ PEAK GUST/RMY 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
11/1 45/36/41/-5/0.79/0.0/000/00 35 NNE RMY N/A
11/2 37/32/35/-11/0.29/1.8/000/00 46 NW RMY 49
11/3 50/30/45/-6/0.00/0.0/584/95 39 WNW RMY 43
11/4 61/44/53/+8/0.00/0.0/208/34 28 SSW RMY 32
11/5 66/50/58/+13/0.00/0.0/006/01 29 SSW RMY N/A
11/6 52/45/49/+4/0.58/0.0/000/00 23 NE RMY 24
11/7 46/34/40/-5/0.00/0.0/079/13 39 NW RMY 42
11/8 47/30/39/-5/0.00/0.0/555/92 24 W RMY 25
11/9 56/38/47/+3/0.00/0.0/204/34 23 SSW RMY N/A
11/10 58/40/49/+5/0.00/0.0/592/99 17 S RMY 20
11/11 61/43/52/+9/0.00/0.0/358/60 22 S RMY 25
11/12 59/40/50/+7/0.00/0.0/095/16 22 W RMY 25
11/13 49/32/41/-2/0.08/T/450/76 21 NW RMY N/A
11/14 41/27/34/-8/0.29/3.5/442/75 23 NW RMY 27
11/15 37/24/31/-11/0.00/0.0/569/97 23 NW RMY 23
11/16 39/26/33/-9/0.00/0.0/012/02 17 S RMY 19
11/17 52/34/43/+2/1.67/0.0/000/00 29 ENE RMY 31
11/18 44/23/34/-7/0.00/0.0/494/85 33 W RMY 39
11/19 35/19/27/-14/0.00/0.0/544/94 31 WSW RMY N/A
11/20 47/26/37/-3/0.00/0.0/542/94 35 WSW RMY 41
11/21 34/22/28/-12/0.00/0.0/569/99 31 WNW RMY 39
11/22 43/20/32/-8/0.00/0.0/…/.. 32 SW RMY 36
11/23 58/40/49/+10/0.00/0.0/…/.. 26 SW RMY N/A
11/24 63/43/53/+14/0.60/0.0/…/.. 44 S RMY 53
11/25 61/44/53/+14/0.00/0.0/…/.. 28 SW RMY 30
11/26 44/31/38/+0/…./…/000/00 41 NE RMY 46
11/27 36/27/32/-6/…./…/…/.. 29 N RMY N/A
11/28 morning low temp: 26F since midnight; the normal low is now 30F
DAILY RECORDS FOR NOVEMBER 2014:
11/2 – A NEW RECORD DAILY SNOWFALL: 1.8 INCHES;
surpasses the previous record of 0.2 ins. in 1906, 1951
11/14 – DAILY SNOWFALL RECORD EQUALED: 3.5 INCHES;
ties previous record on this date in 1997
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR NOVEMBER 28
HIGH 70 IN 1990
LOW 10 IN 1901,1930,1936
PRECIP 1.84 INCHES IN 1889
SNOWFALL 3.0 INS IN 1917
PEAK GUST 90 SSW IN 1958
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
TODAY’S REPORT PREPARED BY: Jonathan O’Brien
