Friday, June 13, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, JUNE 13, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

WARM AND HUMID AIR MASS ARRIVING TODAY
LOW CLOUDS, DENSE FOG, LIGHT RAIN AND DRIZZLE
TEMPERATURES AND DEW POINTS RISING THROUGH THE 60’S

A total rainfall of 0.24 inch so far today through 2 P.M. EDT
in morning drizzle and rain, rain showers.Today’s Observations:

7 A.M.
Weather: Obscurement with heavy fog, light drizzle very light,
light rain shower 6:15 to 6:25 A.M. EST
Temperature: 59F; Dew Point: 59F; Wind: ESE at 13 kts,
Sea-level pressure: 29.96 ins. Hg, falling then more slowly
Visibility: 1/16  mile, heavy fog, light drizzle
6-hr max temp: 59F
6-hr min temp: 58F
24-hr precip: 0.01 in.
BHO SA 1155 W2X 1/16L- 147/59/59/1113/996/ PCPN VRY LGT RB15E25/
8//// 56009 MANUAL 6001/ MANUAL 70001 10059 20058

10 A.M.
Weather: Obscurement with heavy fog and light rain
Temperature: 61F; Dew Point: 61F; Wind: E at 7 kts,
Wind: Direction variable ENE-SE
Sea-level pressure: 29.92 ins. Hg, falling then more slowly
Visibility: zero variable to 1/16 mile, heavy fog, light rain
3-hr. precip: 0.20 in.
BHO SA 1455 W2X 0VR-F 131/61/61/1007/992/ VSBY 0V1/16/ WND 07V13/
8//// 56016 MANUAL 6020/ ASOS 60021

1 P.M.
Weather: Obscurement with heavy fog, sky brightening
Temperature: 67F; Dew Point: 66F; Wind: SE at 4 kts,
Sea-level pressure: 29.87 ins. Hg, falling then more rapidly
Visibility: 1/8 mile, 3/4 mile, W-WNW fog
6-hr max temp: 67F
6-hr min temp: 59F
6-hr precip: 0.23 in.
BHO SA 1755 W3X 1/8F 116/67/66/1304/987/ SKY BRGHTNG
STRA DRFTG OVR SMT VSBY W-WNW 3./4 WND LGT RE10/ 8////
58015 MANUAL 60023 ASOS 60024 10067 20059

WEATHER SUMMARY FOR THURSDAY, JUNE 12, 2014

TEMPERATURE (DEGREES F)
MAX…..70    NORMAL…..74
MIN…..56    NORMAL…..56
MEAN….63    NORMAL…..65

DEPARTURE FROM 30-YEAR NORMAL……………………..-2
TOTAL DEPARTURE FOR THE MONTH…………………….+19 [+1.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………2  DEPARTURE……….-1
TOTAL HEATING UNITS FOR THE MONTH…………..25  DEPARTURE………-21
TOTAL HEATING UNITS FOR THE SEASON………..6419  DEPARTURE………+70
TOTAL HEATING UNITS LAST SEASON TO DATE……5767  DIFFERENCE…. ..+652

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..0   DEPARTURE……….-3
TOTAL COOLING UNITS FOR THE MONTH………….26   DEPARTURE……….-1
TOTAL COOLING UNITS FOR THE SEASON…………39   DEPARTURE………-12
TOTAL COOLING UNITS LAST SEASON TO DATE…….60   DIFFERENCE……..-21

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………21  ESE AT   8:11 A.M.
ASOS…………………..22  ESE AT   8:44 A.M.
DAVIS………………….21  E   AT   8:39 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………..16  E   AT   8:41 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..16  ESE AT   8:41 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….15  E   AT   8:41 A.M.
AVERAGE WIND SPEED AND DIRECTION…………. 9.4 ESE
ASOS…………………..9.6
DAVIS………………….8.4 ESE [110 deg] *…LAST IN A SERIES

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M… 0.01  DEPARTURE……….-0.15
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….1.26  DEPARTURE……….-0.71
ASOS…………..1.22
TOTAL PRECIPITATION FOR THE YEAR……….23.60  DEPARTURE……….-1.03
ASOS………….23.74

PRELIMINARY CLIMATE SUMMARY FOR JUNE 2014 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

6/1  72/47/60/-2/0.00/887/98              21 NNW RMY 21
6/2  81/52/67/+5//0.00/879/97             22 SSW RMY 23
6/3  81/57/69/+7/0.00/889/98              25 SSE RMY 28
6/4  64/52/58/-5/0.11/000/00              16 SE  RMY N/A
6/5  60/55/58/-5/0.91/000/00              21 NNW RMY 24
6/6  73/54/64/+1/0.00/655/72              22 WNW RMY 23
6/7  82/56/69/+5/0.00/893/98              21 W   RMY 22
6/8  84/63/74/+10/0.00/702/77             18 SW  RMY N/A
6/9  77/61/69/+5/0.13/046/05              21 WSW RMY 22
6/10 80/56/68/+3/0.10/183/20              29 ENE RMY 33
6/11 69/55/62/-3/T/…/..                 21 ENE RMY 20
6/12 70/56/63/-2/0.00/…/..              21 ESE RMY N/A

6/13  morning low temp: 58F; the normal low is now 56F

DAILY RECORDS FOR JUNE 2014
None so far.

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

RECORDS FOR JUNE 13
HIGH 93F IN 1988
LOW 43F IN 1982
PRECIP 6.07 INS 1998 [Record for month] PEAK GUST 69 MPH N IN 1956

RECORDS FOR JUNE 14
HIGH 93F IN 1956
LOW 41F IN 1912
PRECIP 1.49 INS 1896
PEAK GUST 55 MPH WNW IN 1958

TODAY’S REPORT PREPARED BY: Robert Skilling