Sunday, November 15, 2015

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

DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, NOVEMBER 15, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME

WINDS MUCH DIMINISHED FROM THE OVER 40 MPH YESTERDAY
W-WSW WINDS GUSTING ONLY 20 TO 26 MPH TODAY
TEMPERATURES START AT 31F RISE TO NEAR 50F

The strong and gusty winds of yesterday have diminished
considerably today gusting to only 20 to 26 mph.
Lots of high cloudiness observed today but much of it
thin enough to allow quite a bit of sunshine. Temperatures
up over the coldest day of month yesterday with a high
of 45 degrees and up nearing 50 degrees early this
afternoon.

Today’s Observations:

7 A.M.
Weather: Thin scattered cirrus, altocumulus/altocumulus lenticularis in
all quadrant except NW, lower cirrus/cirrocumulus SE-SW
Temperature: 33F; Dew Point: 26F; Wind: W at 13 kts
Sea-level pressure: 30.21 ins. Hg, rising, then more slowly
Visibility: 75 miles
6-hr Max temp: 33F
6-hr Min temp: 31F
24-hr precip: none
BHO SA 1155 300 -SCT 75 230/33/26/2613/021/ AC/ACSL ALQDS XCPT
NE LWR CI/CC SE-SW LGT DSNT HZ/ 8/041 51019 10033 20031

10 A.M.
Weather: Scattered altocumulus, overcast dense cirrus, thin
spots in overcast, break in overcast distant S-SSW
Temperature: 42F; Dew Point 29F; Wind: W at 9 kts,
Sea-level pressure: 30.19 ins. Hg, falling slightly
Visibility: 80 miles
BHO SA 1455 150 SCT E220 OVC 80 225/42/29/2709/019/ ACSL N-E-S
DNS CI ALQDS THN SPTS IOVC BINOVC DSNT S-SSW/ 8/042 58005

1 P.M.
Weather: Scattered altocumulus, few lenticularis, scattered
dense cirrus all quadrants, thin overcast cirrus
Temperature: 47F; Dew Point 33F; Wind: WSW at 13 kts
Peak Wind: 35 kts W @ 11:20 PM EST
Sea-level pressure: 30.11 ins. Hg, falling then more slowly
Visibility: 70 miles, light distant haze
6-hr max. temp. 48F
6-hr min. temp. 33F
BHO SA 1755 150 SCT 220 SCT 250 OVC 70 197/47/32/2413/011/
250 LYR THN FEW ACSL DNS CI ALQDS BINOVC DSNT SSE-SW/ 8/042
56028 10048 20033

SUMMARY FOR SATURDAY, NOVEMBER 14, 2015

TEMPERATURE (DEGREES F)
MAX…..45   NORMAL…..51
MIN…..31   NORMAL…..34
MEAN….38   NORMAL…..42

DEPARTURE FROM 30-YEAR NORMAL………………….-4
TOTAL DEPARTURE FOR THE MONTH………………..+112  [+7.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..27   DEPARTURE……….+4
TOTAL HEATING UNITS FOR THE MONTH………….178   DEPARTURE……..-111
TOTAL HEATING UNITS FOR THE SEASON…………632   DEPARTURE……..-220
TOTAL HEATING UNITS LAST SEASON TO DATE…….704   DIFFERENCE……..-72

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….40 NW  AT  11:19 A.M. *
ASOS……………………N/A (ERRONEOUS 54)
DAVIS…………………..44 NW  AT  11:17 A.M. RMY 47
FASTEST MILE FOR YESTERDAY…………………32 NW  AT  11:17 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………32 NW  AT  11:17 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..32 NW  AT  11:17 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..17.5 NW
ASOS…………………..16.6
DAVIS………………….14.9 WNW [300 Deg.] * Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…  0.00  DEPARTURE…..-0.16
ASOS……………0.00
TOTAL PRECIPITATION FOR THE MONTH………..0.80  DEPARTURE…..-1.40
ASOS……………0.80
TOTAL PRECIPITATION FOR THE YEAR………..37.63  DEPARTURE…..-8.34
ASOS…………….N/A ***
*** ASOS annual total not available due to erroneous readings

PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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

11/1  59/45/52/+6/T/…/..                  30 SSW RMY 31
11/2  62/47/55/+9/0.00/…/..               24 W   RMY N/A
11/3  71/44/58/+12/0.00/…/..              25 W   RMY 25
11/4  66/49/58/+13/0.00/…/..              22 SSW RMY N/A
11/5  72/51/62/+17/0.00/…/..              31 SW  RMY 36
11/6  71/60/66/+21/0.00/…/..              35 SSW RMY 38
11/7  64/46/55/+10/0.00/…/..              33 WNW RMY 35
11/8  54/39/47/+3/0.00/…/..               26 NW  RMY 30
11/9  59/38/49/+5/0.00/…/..               20 W   RMY 21
11/10 53/45/49/+5/…./000/00               28 NE  RMY N/A
11/11 48/43/46/+3/…./000/00               41 NE  RMY N/A
11/12 55/42/49/+6/…./000/00               28 S   RMY 30
11/13 57/41/49/+6/…./…/..               40 WSW RMY 47
11/14 45/31/38/-4/0.00/…/..               40 NW  RMY 47

11/15 low since midnight is 31F; normal low is now 34F

DAILY RECORDS FOR NOVEMBER 2015

**11/6 DAILY RECORD MAXIMUM TEMPERATURE OF 71F
TIES PREVIOUS RECORD OF 71F SET IN 1959

**11/6 DAILY RECORD HIGH MINIMUM TEMPERATURE OF 60F
BREAKS PREVIOUS RECORD OF 58F SET IN 1938

**11/6 DAILY RECORD HIGH MINIMUM TEMPERATURE OF 60F
TIES PREVIOUS MONTHLY RECORD OF 60F SET ON
11/8/1996

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

RECORDS FOR NOVEMBER 15
HIGH 74 IN 1993
LOW 15 IN 1933
PRECIP 1.66 INCHES IN 1981
SNOWFALL 4.0 IN 1967
PEAK GUST 65 SSE IN 2008

RECORDS FOR NOVEMBER 16
HIGH 73 IN 1927
LOW 8 IN 1933
PRECIP 2.25 INCHES IN 1981
SNOWFALL 2.0 IN 1913
PEAK GUST 78 S IN 1989

TODAY’S REPORT PREPARED BY: Robert Skilling