Thursday, August 21, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, AUGUST 21, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
CONSIDERABLE LOW CLOUDINESS TODAY AFTER SOME
EARLY MORNING FOG–TEMPS. RISING INTO 70’S
WIND QUITE LIGHT AND VARIABLE
Early morning fog has given way to variable cloudiness today as
temperatures rise through the 70’s. Winds are light and variable
at times.
The air mass is becoming slightly more humid today as dew points
rise to the low to mid 60’s.
Today’s Observations:
7 A.M.
Weather: Broken altocumulus [2 levels) chaotic, broken dense cirrus,
overcast cirrus, line of stratocumulus castellanus ENE-SSE, patches
of stratus dissipating, breaks in overcast, thin spots in overcast
Temperature: 62F; Dew Point: 60F; Wind: ENE at 6 kts
Sea-level pressure: 30.10 ins. Hg, rising steadily
Visibility: 10 miles, except 12 miles NE, thin fog, inversion
present, estimated top 3 hundred of city north
6-hr max temp: 62F
6-hr min temp: 58F
24-hr precip: None
BHO SA 1155 E150 BKN 180 BKN 200 220 OVC 10 194/62/60/0606/010/
SCCAS ENE-SSE FEW LWR STRA DSSPTNG AC CHAOTIC SKY PTCHS DNS CI
BINOVC/THN SPTS IOVC HIER CI VSB VSBY NE INVSN PRSNT ESTMTD TOP 3
HND OVR CTY N THN F ALQDS/ 8/592 52015 10062 20058
10 A.M.
Weather: Overcast variable to broken stratocumulus moderate cumuloform
tops, higher clouds, altocumulus and altocumulus lenticularis are
visible
Temperature: 69F; Dew Point: 62F; Wind: estimated ENE at 3 kts
Wind Speed: Light
Sea-level pressure: 30.10 ins. Hg, about steady
Visibility: 35 miles, except 40 miles, WNW, hazy
BHO 1455 E18 OVC 35 193/69/62/E0403/010/ NMRS BINOVC OVC V BKN
HIER CLDS VSB AC/ACSL VSBY WNW 40 HAZY WND LGT/
8/54/ 50001
1 P.M.
Weather: Broken altocumulus (2 levels) broken dense cirrus,
broken cirrus, moderate cumulus all quadrants
Temperature: 74F; Dew Point: N/A; Wind: NE at 7 kts,
Wind: Variable N-E
Sea-level pressure: 30.08 ins. Hg, falling slightly
Visibility: 30 miles, except 15 miles northeast, fog and stratus
offshore, 25 miles WNW, hazy, SE-SW 35 miles, light haze
6-hr max. temp: 76F
6-hr min. temp: 62F
BHO SA 1755 E100 BKN 150 BKN 200 BKN 250 BKN 30 187/74/XX/0407/008/
MDT CU ALQDS DNS CI W-NW STRA/FG BNK AND VSBY NE 15 WNW 25 HAZY
SE-SW 35 LGT HZ WND 36V08/ 8/272 57006 10076 20062
WEATHER SUMMARY FOR WEDNESDAY, AUGUST 20, 2014
TEMPERATURE (DEGREES F)
MAX…..78 NORMAL…..79
MIN…..58 NORMAL…..62
MEAN….68 NORMAL…..70
DEPARTURE FROM 30-YEAR NORMAL…………………….-2
TOTAL DEPARTURE FOR THE MONTH……………………-38 [-2.1 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..3 DEPARTURE………..-3
TOTAL COOLING UNITS FOR THE MONTH………….90 DEPARTURE……….-43
TOTAL COOLING UNITS FOR THE SEASON………..427 DEPARTURE……….-57
TOTAL COOLING UNITS LAST SEASON TO DATE……572 DIFFERENCE……..-145
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………15 NE AT 1:05 P.M.
ASOS…………………..15 NE AT 2:16 P.M.
DAVIS………………….14 NNE AT 12:21 P.M. RMY 15
FASTEST MILE FOR YESTERDAY………………..11 E AT 7:12 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..12 E AT 2:30 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….11 NNE AT 12:22 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..7.1 NE
ASOS…………………..7.9
DAVIS………………….6.9 E [080 deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE……….-0.13
ASOS…………..0.00
TOTAL PRECIPITATION FOR AUGUST………….1.38 DEPARTURE……….-1.37
ASOS…………..1.35
TOTAL PRECIPITATION FOR THE YEAR……….31.01 DEPARTURE……….-2.73
ASOS………….31.26
PRELIMINARY CLIMATE SUMMARY FOR AUGUST CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/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
8/1 86/63/75/+3/0.00/598/69 25 S RMY 29
8/2 68/59/64/-8/0.11/009/01 21 ESE RMY 22
8/3 71/60/66/-6/0.01/104/12 12 SE RMY 12
8/4 83/64/74/+2/0.00/550/64 20 S RMY 21
8/5 87/66/77/+5/0.00/798/93 17 S RMY 19
8/6 79/64/72/0/0.07/462/54 23 WNW RMY 25
8/7 79/58/69/-3/T/589/69 22 NW RMY 24 TSTM
8/8 82/55/69/-3/0.00/817/96 20 WNW RMY 20
8/9 82/60/71/-1/0.00/730/86 16 WNW RMY 17
8/10 84/63/74/+3/0.00/770/91 15 W RMY N/A
8/11 85/63/74/+3/0.00/667/79 25 S RMY 29
8/12 81/64/73/+2/0.00/387/46 25 SSE RMY N/A
8/13 69/61/65/-6/1.09/000/00 35 ESE RMY 37
8/14 73/57/65/-6/0.00/828/99 27 W RMY 29
8/15 74/56/65/-6/0.09/…/.. 23 W RMY 23 TSTM
8/16 76/56/66/-5/…./…/.. 24 SW RMY 27
8/17 78/60/69/-2/…./…/.. 21 WNW RMY 23
8/18 77/56/67/-4/0.00/…/.. 23 WNW RMY 25
8/19 78/54/66/-4/0.00/…/.. 17 WNW RMY 17
8/20 78/58/68/-2/0.00/.,./.. 15 NE RMY 15
8/21 morning low of 58F; the normal low is now 62F
DAILY RECORDS FOR AUGUST 2014:
None so far.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR AUGUST 21
HIGH 92F IN 1937, 1995
LOW 47F IN 1982
PRECIP 2.84 INCHES IN 1888
PEAK GUST 54 MPH WSW IN 2004
RECORDS FOR AUGUST 22
HIGH 90F IN 1939
LOW 42F IN 1894
PRECIP 2.28 INCHES IN 1935
PEAK GUST 44 MPH SSW IN 1987
TODAY’S REPORT PREPARED BY: Robert Skilling
