Wednesday, August 6, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, AUGUST 6, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

SHOWERS AND A FEW THUNDERSTORMS DEVELOP TODAY

An early morning shower left 0.05 inch just before 8 A.M. EDT and
another shower in the late morning brought only 0.01 inch so the
total for the day through 2 P.M. EDT was just 0.06 inch.  More
showers may develop later today.  The high temperature had fallen
just short of 80 with a 79-degree reading recorded through early
this afternoon.

JULY 2014 PRELIMINARY STATS NOW ARE ON WEB PAGE

The July stats are now included on our web page: bluehill.org

Today’s Observations:

7 A.M.
Weather: Broken altocumulus, overcast altocumulus,
altocumulus castellanus in vicinity of station,
small break in overcast W and NNE, shower of rain
5 miles E-ESE moving E, rain shower began and ended
during past hour
Temperature: 66F; Dew Point: 66F; Wind: NNW at 9 kts
Sea-level pressure: 29.85 ins. Hg, falling then rising slightly
Visibility: 10 miles, hazy, except 5 miles E-ESE, in rain shower
6-hr max temp: 68F
6-hr min temp: 65F
24-hr precip: 0.05 in
BHO SA 1155 E70 BKN 85 OVC 10 109/66/66/3409/985/ ACC VC STN
SML BINOVC VC W AND NNE SHRA 5 E-ESE MOVG E VSBY E-ESE 5 WNW 20
THN F ALQDS RB05E35/ 8/08/ 55004 MANUAL 6005/ ASOS 60004
MANUAL 70005 ASOS 70004 10069 20065

10 A.M.
Weather: Scattered cumulus, moderate cumulus, cirrus/dense cirrus
layer E-S, cirrocumulus pileus ESE, cirrus layer E-S
Temperature: 75F; Dew Point: 63F; Wind: WNW at 4 kts,
Wind: Light
Sea-level pressure: 29.86 ins. Hg, rising slightly
Visibility: 15 miles, hazy, 12 miles E-S, hazy, 20 miles, W-N, hazy
BHO SA 1455 45 SCT 220 SCT 250 SCT 15 111/75/63/2904/986/
CU/MDT CU FRMG ALQDS CI/DNS CI/CC PILEUS SE CI LYR E-S
VSBY E-S 12 W-N 20 HAZY WND LGT/ 8/209 52002

1 P.M.
Weather: Scattered cumulonimbi vicinity SW and N-NNE, towering cumulus,
broken altocumulus generated by cumulus, broken cirriform cumulonimbus
top to the south, thunderstorm began 44 past the hour briefly
lightning in cloud WSW, thunderstorm dissipating, light
rain shower, precipitation very light
Temperature: 74F; Dew Point: 65F; Wind: W at 6 kts
Sea-level pressure: 29.82 ins. Hg, falling, then more quickly
Visibility: 12 miles, hazy, except 3 miles WSW, rain shower
6-hr max  temp: 79F
6-hr min. temp: 66F
6-hr precip: 0.01 in.
BHO SA 1755 35 SCT E45 BKN 80 BKN 220 BKN 12TRW- 098/74/65/2706/982/
TB44 WSW MOVG E DSSPTNG BRFLY LGTCC WSW CBS VC WSW/N-NNE VIRGA
TCU/MDT ALQDS ACCG NW CB TOP S VSBY WSW 3 SHRA HAZY ALQDS/
8/362 58013 ASOS 60001 MANUAL 6001/ 10079 20066

WEATHER SUMMARY FOR TUESDAY, AUGUST 5, 2014

TEMPERATURE (DEGREES F)
MAX…..87    NORMAL…..81
MIN…..66    NORMAL…..63
MEAN….77    NORMAL…..72

DEPARTURE FROM 30-YEAR NORMAL…………………….+5
TOTAL DEPARTURE FOR THE MONTH…………………….-4 [-1.0 DEGREE/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY………….12   DEPARTURE……….+5
TOTAL COOLING UNITS FOR THE MONTH………….32   DEPARTURE……….-4
TOTAL COOLING UNITS FOR THE SEASON………..369   DEPARTURE………-18
TOTAL COOLING UNITS LAST SEASON TO DATE……506   DIFFERENCE…….-137

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………17  S    AT  5:33 P.M. *
ASOS…………………..19  SSW  AT  5:10 P.M.
DAVIS………………….18  SSW  AT  5:09 P.M. RMY 19
FASTEST MILE FOR YESTERDAY………………..13  SSW  AT  5:13 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..15  SSW  AT  5:15 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….14  SSW  AT  5:13 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..7.2 S
ASOS…………………..8.0
DAVIS………………….6.6 WSW [240 deg.] * last of several occurrences…

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.05  DEPARTURE……….-0.10
ASOS…………..0.04
TOTAL PRECIPITATION FOR AUGUST………….0.17  DEPARTURE……….-0.58
ASOS…………..0.14
TOTAL PRECIPITATION FOR THE YEAR……….29.80  DEPARTURE……….-1.94
ASOS………….30.05 (corrected)

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/…/..              25 S   RMY 29
8/2  68/59/64/-8/…./…/..              21 ESE RMY 22
8/3  71/60/66/-6/…./…/..              12 SE  RMY 12
8/4  83/64/74/+2/0.00/…/..              20 S   RMY 21
8/5  87/66/77/+5/0.00/…/..              17 S   RMY 19

8/6  morning low of 65F; the normal low is now 63F

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 6
HIGH 95F IN 1931
LOW 48F IN 1934
PRECIP 1.47 INCHES IN 1995
PEAK GUST 44e MPH SSW IN 1940

RECORDS FOR AUGUST 7
HIGH 95F IN 1924
LOW 51F IN 2004
PRECIP 3.32 INCHES IN 1926
PEAK GUST 51 MPH NE 1975

TODAY’S REPORT PREPARED BY: Robert Skilling