Monday, April 14, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
MONDAY, APRIL 14, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

TEMPERATURES RISE TO THE LOW 70’S WITH VERY GUSTY WINDS
PEAK WIND GUSTS CLOSE TO 60 MPH SSW EARLY AFTERNOON
MORNING LOW OF 55F WOULD EQUAL RECORD HIGH MINIMUM

The high temperature of 73F was far below the record high
of 80F set this date in 1945.

Winds from the SSW have been steadily increasing with gusts
well past 50 MPH by noon and a 2-minute average reached
44 MPH according to ASOS from SSW at 2:16 P.M.
ASOS had recorded a peak of 59 MPH from SSW at 2:16 P.M. EDT
Our 420C system has recorded 54 MPH.  A couple other recorders
have gusts to 58 to 63 MPH.

We still could equal the record high minimum of 55F which
was recorded early this morning.

Today’s Observations:

7 A.M.
Weather: Overcast dense cirrus, thin spots and small
breaks in the overcast
Temperature: 57F; Dew Point: 53F; Wind: SSW at 18G29 kts.
Wind: Peak wind from S @ 34 kts @ 5:57 A.M.
Sea-level pressure: 30.00 ins. Hg, about steady
Visibility: 30 miles, hazy
6-hr max temp: 57F
6-hr min temp: 55F
24-hr precip: 0.04 inch
BHO SA 1155 E220 OVC 30 160/57/53/2018G29/000/ DNS CI ALQDS
THN SPTS SML BINOVC HAZY PK WND 1934/1057/
8/002 55000 MANUAL 70004 ASOS 70003 10057 20055

10 A.M.
Weather: High thin overcast, few cumulus fractus forming,
few lower cirrus
Temperature: 70F; Dew Point: 54F; Wind: SSW at 24G36 kts,
Wind: Peak wind gust 36 kts SSW @ 9:45 A.M.
Sea-level pressure: 29.99 ins. Hg, falling slightly
Visibility: 35 miles, hazy
BHO SA 1455 300 –OVC 156/70/54/2024G36/999/ CUFRA FRMG FEW LWR CI
HAZY PK WND 2136/45/ WND 16V24 8/107 58004

1 P.M.
Weather: Broken dense cirrus, overcast dense cirrus,
cumulus fractus, cumulus all quadrants, sun dimly visible
Temperature: 71F; Dew Point: 53F; Wind: SSW at 22G37 kts,
Wind: Peak wind from SSW @ 12:20 p.m.
Sea-level pressure: 29.96 ins. Hg, falling then falling more rapidly
Visibility: 35 miles, except 45 miles WNW, distant haze
6-hr max temp: 73F
6-hr min temp: 57F
BHO SA 1755 E200 OVC 145/71/53/2122G37/996/ CUFRA/CU ALQDS DNS CI
ALQDS SUN DMLY VSB SML BINOVC NW VSBY WNW 45 DSNT HZ PK WND 2045/20/
8/102 58011 10073 20057

WEATHER SUMMARY FOR SUNDAY, APRIL 13, 2014

TEMPERATURE (DEGREES F)
MAX…..65    NORMAL…..55
MIN…..45    NORMAL…..37
MEAN….55    NORMAL…..46

DEPARTURE FROM 30-YEAR NORMAL…………………….+9
TOTAL DEPARTURE FOR THE MONTH……………………+60 [+4.0 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..10  DEPARTURE……….-9
TOTAL HEATING UNITS FOR THE MONTH………….221  DEPARTURE………-60
TOTAL HEATING UNITS FOR THE SEASON………..5848  DEPARTURE………+83
TOTAL HEATING UNITS LAST SEASON TO DATE……5287  DIFFERENCE…….+561

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………35  S   AT 10:34 P.M.
AERO…………………..N/A
ASOS…………………..36  S   AT 10:34 P.M.
DAVIS………………….N/A                    RMY N/A
FASTEST MILE FOR YESTERDAY………………..26 SSW  AT 10:53 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..26 SSW  AT 10:53 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….N/A
AVERAGE WIND SPEED AND DIRECTION…………14.7  S
ASOS…………………14.8
DAVIS………………..13.1  S [190 deg] * last of several occurrences…

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.04  DEPARTURE………….-0.12
ASOS…………..0.03
TOTAL PRECIPITATION FOR THE MONTH……….1.21  DEPARTURE………….-0.99
ASOS…………..1.19
TOTAL PRECIPITATION FOR THE YEAR……….16.33  DEPARTURE………….+0.13
ASOS………….16.73

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0  DEPARTURE…………..-0.1
TOTAL SNOWFALL FOR THE MONTH…………….0.0  DEPARTURE…………..-2.0
TOTAL SNOWFALL FOR THE SEASON…………..84.8  DEPARTURE………….+23.1

PRELIMINARY CLIMATE SUMMARY FOR APRIL 2014 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system 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

4/1  48/31/40/-1/0.00/0.0/694/91          29 NNE AERO N/A        RMY N/A
4/2  56/34/45/+4/0.00/0.0/452/69          22 WSW AERO 20 MPH WSW RMY N/A
4/3  55/36/46/+4/0.00/0.0/707/92          23 NNW AERO 22 MPH NW  RMY 25
4/4  47/35/41/-1/0.31/0.0/255/33          26 ESE AERO N/A        RMY 25
4/5  51/33/42/-1/0.19/0.0/186/24          39 WNW AERO N/A        RMY 40
4/6  58/29/44/+1/0.00/0.0/755/97          25 W   AERO N/A        RMY N/A
4/7  59/44/52/+9/0.05/0.0/187/24          28 SSE AERO N/A        RMY N/A
4/8  62/41/52/+8/0.61/0.0/016/02          45 W   AERO N/A        RMY 44
4/9  60/36/48/+4/0.00/0.0/707/90          35 NW  AERO N/A        RMY 36
4/10 57/33/45/0/0.00/0.0/742/94           38 S   AERO N/A        RMY 39
4/11 70/45/58/+13/T/0.0/…/..            32 S   AERO N/A        RMY N/A
4/12 68/44/56/+11/0.00/0.0/…/..         28 W   AERO N/A        RMY 28
4/13 65/45/55/+10/0.04/0.0/…/..         35 S   AERO N/A        RMY N/A

4/14 morning low temp: 55F; the normal low is now 37F

DAILY RECORDS FOR APRIL 2014
None so far.

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

RECORDS FOR APRIL 14
HIGH 80 IN 1945
LOW 21 IN 1923
PRECIP 2.22 IN. IN 1895
SNOWFALL 8.4 IN. IN 1953
PEAK GUST 71e MPH W IN 1943

RECORDS FOR APRIL 15
HIGH 81 IN 1896
LOW 23 IN 1943
PRECIP 1.75 IN. IN 2007
SNOWFALL 1.0 IN. IN 1916, 1962
PEAK GUST 66 MPH E IN 2007

TODAY’S REPORT PREPARED BY: Robert Skilling