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Friday, August 12, 2016

August 12, 2016

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, AUGUST…

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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, AUGUST 12, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME

HEAT ADVISORY CONTINUES THROUGH TODAY, DROUGHT CONDITIONS BECOME EXTREME

Another heat advisory was issued for today as temperatures rose to 95F this
afternoon and dew points remained in the low 70s. With an overnight low of 74F,
the average temperature for today is already 14F above normal. Yesterday’s low
of 73F ties the record for high minimum temperature which was set in 1900, and
also tied in 1988.

The National Drought Mitigation Center upgraded the drought to extreme for
portions of the state NW of Boston. Blue Hill remains in a severe drought.

Today’s Observations:

7 A.M.
Weather: Few altocumulus SE-S, scattered cirrocumulus,
scattered cirrus
Temperature: 79F; Dew Point: 71F; Wind: SW at 10G16 kts
Sea-level pressure: 29.89 ins. Hg, rising then falling
Visibility: 40 miles
6-hr Max temp: 79F
6-hr Min temp: 74F
24-hr precip: 0.00 in.
BHO SA 1155 170 SCT 250 SCT 40 122/79/71/2210G16/989/
FEW AC SE-S/ 8/089 50005 10079 20074

10 A.M.
Weather: Scattered cirrus, few cumulus E-N, few altocumulus E-N
Temperature: 88F; Dew Point: 73F; Wind: SW at 10G19 kts
Sea-level pressure: 29.87 ins. Hg, falling, and then less quickly
Visibility: 40 miles
BHO SA 1455 250 SCT 40 114/88/73/2310G19/987/ FEW CU E-N
FEW AC E-N/ 8/152 56008

1 P.M.
Weather: Scattered cumulus, scattered cirrus
Temperature: 95F; Dew Point: 73F; Wind: SW at 15G21 kts,
Peak Wind: 26 kts (30 mph) SW at 12:11PM EST
Sea-level pressure: 29.81 ins. Hg, falling, then more quickly
Visibility: 60 miles
6-hr Max temp: 95F
6-hr Min temp: 79F
BHO SA 1755 37 SCT 250 SCT 60 096/95/73/2215G21/981/ PK WND 2226/11/
8/201 58018 10095 20079

SUMMARY FOR THURSDAY, AUGUST 11, 2016

TEMPERATURE (DEGREES F)
MAX…..93   NORMAL…..80
MIN…..73   NORMAL…..63
MEAN….83   NORMAL…..71

DEPARTURE FROM 30-YEAR NORMAL……………………+12
TOTAL DEPARTURE FOR THE MONTH……………………+28 [+2.3 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..18   DEPARTURE………+11
TOTAL COOLING UNITS FOR THE MONTH………….103   DEPARTURE………+25
TOTAL COOLING UNITS FOR THE SEASON…………577   DEPARTURE……..+148
TOTAL COOLING UNITS LAST SEASON TO DATE…….472   DIFFERENCE…….+105

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….22 SSW AT 4:56 P.M.
AEROVANE………………..21 SSW AT 4:56 P.M.
ASOS……………………22 SSW AT 4:57 P.M.
DAVIS…………………..22 S   AT 4:40 P.M. RMY 22
FASTEST MILE FOR YESTERDAY…………………17 SW  AT 3:13 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………17 SW  AT 3:13 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..16 SSW AT 3:12 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..9.8 SW
ASOS………………….10.0
DAVIS………………….8.9 SW [230 Deg.] * Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…TRACE  DEPARTURE……-0.14
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….0.42  DEPARTURE……-1.17
ASOS…………..0.40
TOTAL PRECIPITATION FOR THE YEAR……….23.61  DEPARTURE……-8.97
ASOS………….23.91

PRELIMINARY CLIMATE SUMMARY FOR AUGUST 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

8/1  75/65/70/-2/0.02/320/37                 21 NE  AERO 20 ENE RMY 20
8/2  71/63/67/-5/0.12/000/00                 16 ENE AERO 16 ENE RMY 16
8/3  81/60/71/-1/0.00/603/70                 18 S   AERO 16 S   RMY 17
8/4  86/61/74/+2/0.00/833/97                 23 S   AERO 22 S   RMY 17
8/5  87/61/74/+2/0.00/823/96                 29 S   AERO 29 S   RMY 30
8/6  88/67/78/+6/T/419/49                    24 SSW AERO 23 SSW RMY 23
8/7  89/65/77/+5/0.00/…/..                 26 WNW AERO 25 WNW RMY 26
8/8  87/63/75/+3/0.00/…/..                 23 W   AERO 21 W   RMY 22
8/9  90/65/78/+6/0.00/…/..                 25 SSW AERO 24 SSW RMY 25
8/10 76/66/71/+0/0.28/…/..                 30 SSW AERO 31 SSW RMY 33
8/11 93/73/83/+12/T/…/..                   22 SSW AERO 21 SSW RMY 22

8/12 Low temp since midnight is 74F; normal low is now 63F

DAILY RECORDS FOR AUGUST 2016
8/11/16: NEW DAILY RECORD HIGH MINIMUM TEMPERATURE OF 73F,
TIES PREVIOUS RECORDS SET IN 1900 AND 1988

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR AUGUST 12
HIGH 99F IN 1944
LOW 48F IN 1930
PRECIP 1.89 INCHES IN 1979
PEAK GUST 50 MPH NE IN 1983

RECORDS FOR AUGUST 13
HIGH 98F IN 1944, 2002
LOW 47F IN 1902, 1957
PRECIP 2.92 INCHES IN 1989
PEAK GUST 52 MPH SSE IN 1963

TODAY’S REPORT PREPARED BY: Cecilia Borries-Strigle and Lizzy Suzedell

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Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
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