Tuesday, October 7, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, OCTOBER 7, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

WINDS SHIFT TO THE SOUTH OVERNIGHT, GUSTS TO 43
MPH BY EARLY AFTERNOON, SCATTERED SHOWERS ACCOMPANY

As the flow shifted to the south overnight, temperatures
recovered quickly into the 60s after an overnight low
of 53F. A trace of rain was recorded at the 10:00 AM EST
observation with showers at the station, as well as
distant to the SSW and NW-NE.

0.01 inches of rain fell by the 1:00 PM EST observation
following a few spotty rain showers.

Today’s Observations:

7 A.M.
Weather: Scattered altocumulus, scattered cirrus fibratus,
few cumulus in all directions, few stratocumulus lenticularis
in all directions, altocumulus lenticularis in all directions
Temperature: 61F; Dew Point: 57F; Wind: SSE at 17G22 kts
Sea-level pressure: 30.12 ins. Hg, falling, then rising
Visibility: 30 miles, thin fog in all directions
6-hr max temp: 61F
6-hr min temp: 54F
24-hr precip: 0.00 in.
BHO SA 1155 160 SCT 200 SCT 30 201/61/57/1617G22/012/
FEW CU ALQDS FEW SCSL ACSL DSNT ALQDS THN FG ALQDS/
8/841 55002 10061 20054

10 A.M.
Weather: Light rain at station and showers distant SSW and
NW-NE, broken moderate cumulus, broken nimbostratus,
few small cumulus in all directions, thin spots in overcast W and E
Temperature: 65F; Dew Point: 58F; Wind: S at 13G22 kts,
Peak Wind: 26 kts S at 09:07 AM EST
Sea-level pressure: 30.10 ins. Hg, falling, then rising
Visibility: 30 miles, 20 miles NW-NW, obscured by light rain
3-hr precip: Trace
BHO SA 1455 E41 BKN 60 OVC 30R- 193/65/58/1813G22/010/
RB42 SHWRS DSNT SSW AND NW-NE VSBY NW-NE 20 MI
FEW SML CU ALQDS THN SPTS INOVC W AND E PK WND 1726/07/
8/2/// 55008 MANUAL 6000/

1 P.M.
Weather: Scattered cumulus, broken alto/nimbus stratus,
thin overcast of cirrus
Temperature: 70F; Dew Point: 56F; Wind: S at 20G32 kts
Peak Gust: 37 kts S @ 12:29 PM EST
Sea-level pressure: 30.04 ins. Hg, falling, then more slowly
Visibility: 40 miles, light distant haze
6-hr max temp: 70F
6-hr min temp: 61F
6-hr precip: 0.01 in.
BHO SA 1755 29 SCT E80 BKN 280 -OVC 40 173/70/56/1820G32/004/
LGT DSNT HZ ALQDS PK WND 1837/29/
8/121 56020 ASOS 60001 MANUAL 60001 10070 20061

WEATHER SUMMARY FOR MONDAY, OCTOBER 6, 2014

TEMPERATURE (DEGREES F)
MAX…..66    NORMAL…..64
MIN…..42    NORMAL…..47
MEAN….54    NORMAL…..55

DEPARTURE FROM 30-YEAR NORMAL…………………….-1
TOTAL DEPARTURE FOR THE MONTH……………………-15 [-2.7 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………0  DEPARTURE…………0
TOTAL COOLING UNITS FOR THE MONTH……………0  DEPARTURE………..-2
TOTAL COOLING UNITS FOR THE SEASON…………587  DEPARTURE……….-12
TOTAL COOLING UNITS LAST SEASON TO DATE…….700  DIFFERENCE……..-113

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..11  DEPARTURE………..+1
TOTAL HEATING UNITS FOR THE MONTH…………..68  DEPARTURE……….+12
TOTAL HEATING UNITS FOR THE SEASON…………169  DEPARTURE……….-29
TOTAL HEATING UNITS LAST SEASON TO DATE…….163  DIFFERENCE……….+6

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………25 SSE AT  3:38 P.M.
ASOS…………………..28 S   AT  3:57 P.M.
DAVIS………………….27 SSE AT  3:39 P.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………..20 S   AT  5:09 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..21 S   AT  5:08 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….19 S   AT  5:09 P.M.
AVERAGE WIND SPEED AND DIRECTION………….12.1 S
ASOS………………….11.5
DAVIS…………………10.5 SSW (202 degrees)
* Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE……..-0.15
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….2.27  DEPARTURE……..+1.38
ASOS…………..2.28
TOTAL PRECIPITATION FOR THE YEAR……….33.86  DEPARTURE……..-6.11
ASOS………….34.08

PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 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

10/1 56/55/56/-1/…./000/00              33 NE  RMY 36
10/2 55/47/51/-6/…./000/00              30 NE  RMY N/A
10/3 54/46/50/-6/…./000/00              20 NE  RMY 20
10/4 63/52/58/+2/…./000/00              30 SE  RMY 32
10/5 60/45/53/-3/0.00/…/..              26 W   RMY 28
10/6 66/42/54/-1/0.00/…/..              25 SSE RMY N/A

10/7 morning low temp: 53F since midnight; normal low now 46F

DAILY RECORDS FOR OCTOBER 2014:
None so far.

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

RECORDS FOR OCTOBER 7
HIGH 88F IN 1963 (RECORD FOR MONTH)
LOW 30F IN 1904,1986
PRECIP 1.75 INCHES IN 1972
PEAK GUST 54 W IN 2009

RECORDS FOR OCTOBER 8
HIGH 81F IN 1916,1990
LOW 28F IN 1919
PRECIP 2.31 INCHES IN 1891
SNOWFALL TRACE IN 1988, 2001 (EARLIEST DATE)
PEAK GUST 60 MPH NE IN 1996

TODAY’S REPORT PREPARED BY: Brian Fitzgerald