Saturday, March 12, 2016
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, MARCH 12, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
CLEAR AND DRY MORNING AS COLDER TEMPERATURES GIVE WAY TO
WARMTH.
After finally cooling down last night, with temperatures
dropping below freezing, only a few scattered Cirrostratus
clouds remained.
Visibility stood at 75 miles with Mount Monadanock in full
view for the 7 o’clock ob as cool and dry conditions prevailed.
By today’s 1:00 PM EST observation skies were clearing with
just a few cirrus around after temperatures had climbed up into
the 50’s.
Today’s Observations:
7 A.M.
Weather: Scattered Cirrostratus, Few Cumulus NNE-NE distant
offshore
Temperature: 35F; Dew Point: 26F; Wind: estimated N at 06 kts
Wind: Light
Sea-level pressure: 30.33 ins. Hg, falling then rising but lower
Visibility: 75 miles
6-hr Max temp: 39F
6-hr Min temp: 31F
24-hr precip: T
24-hr snowfall: 0.00 inch
BHO SA 1155 250 SCT 75 274/35/26/3506/033/ FEW SC NNE-NE DSNT
OFFSHR/ 8/508 55001 MANUAL 6000/ 10039 20031
10 A.M.
Weather: Few Cirrostratus all quadrants
Temperature: 45F; Dew Point: 23F; Wind: S at 9 kts,
Sea-level pressure: 30.30 ins. Hg, increasing then decreasing
and lower
Visibility: 70 miles
BHO SA 1455 CLR 70 261/45/23/1809/030/ FEW CS ALQDS 8/008 58013
1 P.M.
Weather: Few Cirrus, Few Cirrostratus
Temperature: 53F; Dew Point: 28F; Wind: SSW at 12 kts,
Sea-level pressure: 30.08 ins. Hg, steady then decreasing
Visibility: 80 miles
6-hr Max temp: 53F
6-hr Min temp: 39F
BHO SA 1755 CLR 80 210/53/28/2012/015/ FEW CI FEW CS/ 8/008
58051 10053 20039
SUMMARY FOR FRIDAY, MARCH 11, 2016
TEMPERATURE (DEGREES F)
MAX…..56 NORMAL…..43
MIN…..38 NORMAL…..25
MEAN….47 NORMAL…..34
DEPARTURE FROM 30-YEAR NORMAL……………………+13
TOTAL DEPARTURE FOR THE MONTH……………………+77 [+6.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..18 DEPARTURE………-13
TOTAL HEATING UNITS FOR THE MONTH………….282 DEPARTURE………-50
TOTAL HEATING UNITS FOR THE SEASON………..3965 DEPARTURE……..-962
TOTAL HEATING UNITS LAST SEASON TO DATE……5085 DIFFERENCE……-1120
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….28 NNW AT 11:32 P.M.
ASOS……………………27 NW AT 11:32 P.M.
DAVIS…………………..24 NW AT 11:32 P.M. RMY 29
FASTEST MILE FOR YESTERDAY…………………17 WNW AT 7:02 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………18 NW AT 11:33 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..17 WNW AT 7:03 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..8.7 NNW
ASOS…………………..8.5
DAVIS………………….7.6 NW [317 Deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….T DEPARTURE……-0.17
ASOS…………..0.27
TOTAL PRECIPITATION FOR THE MONTH……….0.75 DEPARTURE……-1.17
ASOS…………..0.75
TOTAL PRECIPITATION FOR THE YEAR……….10.12 DEPARTURE……-0.22
ASOS………….10.71
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE…….-0.5
TOTAL SNOWFALL FOR THE MONTH…………….0.5 DEPARTURE…….-5.1
TOTAL SNOWFALL FOR THE SEASON…………..38.6 DEPARTURE……-14.5
PRELIMINARY CLIMATE SUMMARY FOR MARCH CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/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
3/1 45/30/38/+7/0.00/0.0/…/.. 54 W AERO 60 W RMY 53
3/2 52/21/37/+6/0.41/0.0/…/.. 44 WNW AERP 47 NW RMY 42
3/3 34/16/25/-7/0.00/0.0/…/.. 30 WNW AERO 36 WNW RMY N/A
3/4 30/24/27/-5/…./…/…/.. 32 N AERO 38 N RMY 34
3/5 35/20/28/-4/0.00/0.0/…/.. 31 N AERO 36 N RMY N/A
3/6 40/25/33/+1/0.00/0.0/…/.. 21 SSE AERO 21 SSE RMY N/A
3/7 49/29/39/+6/0.00/0.0/…/.. 43 SSW AERO 48 SSW RMY 45
3/8 55/35/45/+12/0.00/0.0/…/.. 23 S AERO 24 S RMY N/A
3/9 75/38/57/+24/0.00/0.0/…/.. 32 S AERO 36 S RMY 33
3/10 64/50/57/+24/…./0.0/000/00 31 NNW AERO 38 NNW RMY 32
3/11 56/38/47/+13/T/0.0/…/.. 28 NNW AERO 36 NNW RMY 29
3/12 morning low temp. since midnight 31F; normal now 25F
DAILY RECORDS FOR MARCH 2016
***3/9/16: NEW DAILY RECORD MAXIMUM TEMPERATURE OF 75F,
BREAKS PREVIOUS RECORD OF 71F SET BACK IN 2000.***
***3/10/16: NEW DAILY RECORD HIGH MINIMUM TEMPERATURE OF 50F,
BREAKS PREVIOUS RECORD OF 42F SET AND TIED IN 1977, 2006***
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR MARCH 12
HIGH 72 IN 2012
LOW 2 IN 1885
PRECIP 2.87 INS. IN 1888
SNOWFALL 9.7 INS. IN 1959
PEAK GUST 66 MPH SE IN 1962
RECORDS FOR MARCH 13
HIGH 72 IN 1990
LOW -1 IN 1885
PRECIP 2.47 INS. IN 1993
SNOWFALL 10.0 INS. IN 1993
PEAK GUST 76 MPH ENE IN 1993 [THE “STORM OF THE CENTURY”]
TODAY’S REPORT PREPARED BY: Robert Millette
