Thursday, August 28, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, AUGUST 28, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

A BEAUTIFUL SUNNY, WARM AND DRY DAY TODAY
A SECOND DAY YESTERDAY WITH HIGH 89F
COLD FRONT PASSES OVERNIGHT WITH BRIEF SHOWER

A beautiful warm, dry late summer day today went
from sunny to partly sunny by this afternoon.
A second day in a row with 89F yesterday has been
followed by warm and much drier air today with the
visibility going up to 75 miles to the northwest
by early afternoon.
A brief rain shower produced only 0.03 inch last
evening as part of a decaying line of eastward moving
showers.

Today’s Observations:

7 A.M.
Weather: Scattered stratocumulus with stratocumulus castellanus
Temperature: 68F; Dew Point: 59F; Wind: NNW at 10 kts,
Sea-level pressure: 29.84 ins. Hg, rising then rising more slowly
Visibility: 60 miles, light distant haze LIG
6-hr max temp: 70F
6-hr min temp: 64F
24-hr precip: 0.03 in.
BHO SA 1155 50 SCT 60 104/68/59/3310/984/ FEW SCCAS ALQDS CLDS DCRSNG
LGT DSNT HZ/ 8/500 51008 MANUAL 70003 ASOS 70002 10070 20064

10 A.M.
Weather: Scattered cumulus fractus/cumulus all quadrants
Temperature: 76F; Dew Point: 54F; Wind: NNW at 12 kts,
Wind: Direction variable NW-NNE
Sea-level pressure: 29.83 ins. Hg, falling slightly
Visibility: 70 miles, light distant haze
BHO SA 1455 CLR 70 101/76/54/3312/983/ CUFRA/CU FRMG ALQDS LGT DSNT HZ
WND 31V02/ 8/100 58003

1 P.M.
Weather: Scattered cumulus, moderate cumulus, broken altocumulus
generated by cumulus
Temperature: 75F; Dew Point: 52F; Wind: NW at 8 kts,
Wind: Variable direction, WNW-N
Sea-level pressure: 29.82 ins. Hg, decreasing, rising slightly
Visibility: 70 miles, except 75 miles NW light distant haze
6-hr max. temp: 80F
6-hr min. temp: 68F
BHO SA 1755 50 SCT E70 BKN 70 097/75/52/3208/982/ MDT CU ALQDS ACCU
ALQDS VSBY NW 75 LGT DSNT HZ WND 30V36/ 8/260 55004 10080 20068

WEATHER SUMMARY FOR WEDNESDAY, AUGUST 27, 2014

TEMPERATURE (DEGREES F)
MAX…..89    NORMAL…..78
MIN…..64    NORMAL…..60
MEAN….77    NORMAL…..69

DEPARTURE FROM 30-YEAR NORMAL…………………….+8
TOTAL DEPARTURE FOR THE MONTH……………………-32 [-1.4 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY………….12   DEPARTURE………..+7
TOTAL COOLING UNITS FOR THE MONTH…………128   DEPARTURE……….-41
TOTAL COOLING UNITS FOR THE SEASON………..465   DEPARTURE……….-55
TOTAL COOLING UNITS LAST SEASON TO DATE……619   DIFFERENCE……..-154

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………23  SW   AT  1:31 P.M.
ASOS…………………..28  SW   AT  1:31 P.M.
DAVIS………………….26  SW   AT  1:31 P.M. RMY 25
FASTEST MILE FOR YESTERDAY………………..18  SW   AT  1:32 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..20  SW   AT  1:33 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….18  SW   AT  1:33 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..12.3 SW
ASOS…………………..12.2
DAVIS………………….11.4 SW [230 deg.] * last of several occurrences…

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.03  DEPARTURE……….-0.08
ASOS…………..0.02
TOTAL PRECIPITATION FOR AUGUST………….1.48  DEPARTURE……….-2.11
ASOS…………..1.43
TOTAL PRECIPITATION FOR THE YEAR……….31.11* DEPARTURE……….-3.47
ASOS………….30.99*
* correction made

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/-6/0.09/459/55              23 W   RMY 23 TSTM
8/16 76/56/66/-5/0.00/640/77              24 SW  RMY 27
8/17 78/60/69/-2/0.01/555/67              21 WNW RMY 23
8/18 77/56/67/-4/0.00/777/94              23 WNW RMY 25
8/19 78/54/66/-4/0.00/816/99              17 WNW RMY 17
8/20 78/58/68/-2/0.00/813/99              15 NE  RMY 15
8/21 76/58/67/-3/T/434/53                 16 ENE RMY 17
8/22 71/60/66/-4/0.07/…/..              17 NE  RMY 19
8/23 71/58/65/-5/0.00/…/..              22 ENE RMY 25
8/24 78/58/68/-2/0.00/…/..              16 ENE RMY N/A
8/25 85/63/74/+5/0.00/…/..              16 NW  RMY 17
8/26 89/62/70/+7/0.00/…/..              20 SSW RMY 23
8/27 89/64/77+8/0.03/…/..               23 SW  RMY 25

8/28 morning low temp: 64F; normal low now 60F

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 28
HIGH 95F IN 1948
LOW 43F IN 1885
PRECIP 1.80 INCHES IN 1922
PEAK GUST 87 MPH SSE IN 1971 (DORIA)

RECORDS FOR AUGUST 29
HIGH 95F IN 1953
LOW 41F IN 1982
PRECIP 2.88 INCHES IN 1962
PEAK GUST 70e MPH S IN 1949

TODAY’S REPORT PREPARED BY: Robert Skilling