Thursday, November 6, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, NOVEMBER 6, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

Light rain began early this morning and continues this
afternoon.  The amount as of 1 p.m. is 0.17 inch.
Temperatures are about steady in the mid 40’s with
a very light breeze from the ESE.

Today’s Observations:

7 A.M.
Weather:  Scattered nimbostratus, overcast nimbostratus, ceiling lowering,
light drizzle began 6:45 A.M. intermittent very light
Temperature: 49F; Dew Point: 44F; Wind: SSE at 9 kts
Sea-level pressure: 30.04 ins. Hg, falling then more rapidly
Visibility: 30 miles, except WNW 45 miles, NE 25 miles, hazy
6-hr max temp: 52F
6-hr min temp: 47F
24-hr precip: trace
BHO SA 1155 50 SCT E70 OVC 30L- 174/49/44/1609/004/ CIG LWRG VSBY WNW 45
NE 25 LB45 PCPN VRY LGT/ 8/02/ 58009 MANUAL 6000/ 10052 20047

10 A.M.
Weather: Overcast nimbostratus, light rain, mostly very light
and thin fog
Temperature: 47F; Dew Point: 44F; Wind: SSE at 4 kts
Sea-level pressure: 29.98 ins. Hg, falling then more rapidly
Visibility: 15 miles, except WNW 20 miles, lowering all quadrants
3-hr precip: trace
BHO SA 1455 E55 OVC 15R- 153/47/44/1504/998/ VSBY WNW 20 THN F ALQDS
VSBY LWRG ALQDS PCPN MSTLY VRY LGT/ 8/02/ 58021 MANUAL 6000/

1 P.M.
Weather: Obscurement with heavy fog, light rain occurring
Temperature: 46F; Dew Point: 46F; Wind: at ESE @ 4 kts,
Sea-level pressure: 29.89 ins. Hg, falling then more quickly
Visibility: 1/8 in light rain and heavy fog
6-hr max temp: 49F
6-hr min temp: 45F
6-hr precip: 0.17 inch
BHO SA 1755 W3 X 1/8F 121/46/46/1204/989/ 8//// 58032
MANUAL 6017/ ASOS 60016 10049 20045

WEATHER SUMMARY FOR WEDNESDAY, NOVEMBER 5, 2014

TEMPERATURE (DEGREES F)
MAX…..66   NORMAL…..54
MIN…..50   NORMAL…..37
MEAN….58   NORMAL…..45

DEPARTURE FROM 30-YEAR NORMAL……………………+13
TOTAL DEPARTURE FOR THE MONTH…………………….-1 [-0.2 DEGREE/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………7  DEPARTURE……….-13
TOTAL HEATING UNITS FOR THE MONTH…………..98  DEPARTURE………..+2
TOTAL HEATING UNITS FOR THE SEASON…………520  DEPARTURE………-140
TOTAL HEATING UNITS LAST SEASON TO DATE…….568  DIFFERENCE………-48

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………29 SSW AT 12:39 A.M.
ASOS…………………..32 SSW AT 12.39 A.M.
DAVIS………………….31 SSW AT 12:41 A.M. RMY 32
FASTEST MILE FOR YESTERDAY………………..22 SSW AT 12:43 A.M. *
MAXIMUM 2-MINUTE ASOS AVERAGE……………..24 SSW AT 12:42 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….23 SSW AT 12:44 A.M.
AVERAGE WIND SPEED AND DIRECTION…………12.5 SSW
ASOS…………………12.5
DAVIS………………..11.5 SW (220 degrees)
* Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….trace DEPARTURE……..-0.15
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….1.08  DEPARTURE……..+0.30
ASOS…………..1.12
TOTAL PRECIPITATION FOR THE YEAR……….42.63  DEPARTURE……..-1.92
ASOS………….42.99

PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/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

11/1 45/36/41/-5/…./0.0/000/00              35 NNE RMY N/A
11/2 37/32/35/-11/…./1.8/000/00             46 NW  RMY 49
11/3 50/30/45/-6/0.00/0.0/…/..              39 WNW RMY 43
11/4 61/44/53/+8/0.00/0.0/…/..              28 SSW RMY 32
11/5 66/50/58/+13/0.00/0.0/…/..             29 SSW RMY N/A

11/6 morning low temp: 47F since midnight; normal low now 36F

DAILY RECORDS FOR NOVEMBER 2014:
11/2 – A NEW RECORD DAILY SNOWFALL 1.8 INCHES;
surpasses the previous record of 0.2 ins. in 1906, 1951

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

RECORDS FOR NOVEMBER 6
HIGH 71 IN 1959
LOW 22 IN 1951
PRECIP 1.72 INCHES IN 1907
SNOWFALL 8.0 IN 1894
PEAK GUST 63 W IN 1973

RECORDS FOR NOVEMBER 7
HIGH 75 IN 1938
LOW 21 IN 1930
PRECIP 2.02 INCHES IN 1953
SNOWFALL 3.5 IN 2012
PEAK GUST 69e ENE IN 1953

TODAY’S REPORT PREPARED BY: Robert Skilling