Monday, July 14, 2014

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

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

HOT AND HUMID CONDITIONS RETURN, DEW POINTS
REACH THE LOWER 70S WITH SPOTTY SHOWERS

It’s been a humid start to the week with dew points
reaching the lower 70s by early mid morning today. A quick
overnight shower dropped 0.01 inches of new precipitation
followed by another quick shower which dropped an additional
0.01 inches after the 7:00 AM EST observation.

Yesterday’s breezy conditions seemed to keep temperatures
suppressed somewhat, with a high of 82F and a 24 hour average
wind speed of 17.9 MPH.

Visibility today has been kept to less than 30 miles.

Today’s Observations:

7 A.M.
Weather: Broken stratocumulus, overcast alto/nimbostratus,
few stratus/cumulus fractus in all directions,
showers distant WSW-WNW
Temperature: 73F; Dew Point: 69F; Wind: SSW at 9 kts
Sea-level pressure: 29.93 ins. Hg, rising then more slowly
Visibility: 20 miles, 10 miles WSW-WNW and NNW-NNE, thin fog
6-hr max temp: 73F
6-hr min temp: 69F
24-hr precip: 0.01 inches
BHO SA 1155 E15 BKN 20 OVC 20 135/73/69/2009/993/ FEW ST/CUFRA ALQDS
SHWRS DSNT WSW-WNW VSBY WSW-WNW AND NNW-NNE 10 MI THN FG ALQDS/
8/72/ 51015 MANUAL 70001 10073 20069

10 A.M.
Weather: Scattered cumulus, scattered altocumulus, broken cirrus,
few cumulus fractious all quadrants
Temperature: 79F; Dew Point: 69F; Wind: estimated SW at 5 kts
Wind Speed: Light
Sea-level pressure: 29.93 ins. Hg, rising, then falling, the same
Visibility: 25 miles, hazy in all directions
3-hr precip: 0.01 inches
BHO SA 1455 50 SCT 80 SCT E250 BKN 25 135/79/69/E2205/993/
FEW CUFRA ALQDS HAZY WND LGT/ 8/841 50000 ASOS 60001 MANUAL 60001

1 P.M.
Weather: Scattered stratocumulus, broken altostratus,
overcast altostratus, few cumulus in all directions
Temperature: 82F; Dew Point: 70F; Wind: SW at 10 kts,
Sea-level pressure: 29.91 ins. Hg, falling then more quickly
Visibility: 20 miles, hazy in all directions
6-hr max temp: 83F
6-hr min temp: 72F
6-hr precip: 0.01 inches
BHO SA 1755 35 SCT E100 BKN 160 OVC 20 129/82/70/E2210/991/
FEW CU ALQDS HAZY/ 8/82/ 58006 ASOS 60001 MANUAL 60001 10083 20072

WEATHER SUMMARY FOR SUNDAY, JULY 13, 2014

TEMPERATURE (DEGREES F)
MAX…..82    NORMAL…..81
MIN…..64    NORMAL…..63
MEAN….73    NORMAL…..72

DEPARTURE FROM 30-YEAR NORMAL…………………….+1
TOTAL DEPARTURE FOR THE MONTH……………………+34 [+2.4 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..8   DEPARTURE……….+1
TOTAL COOLING UNITS FOR THE MONTH…………116   DEPARTURE………+31
TOTAL COOLING UNITS FOR THE SEASON………..225   DEPARTURE………+11
TOTAL COOLING UNITS LAST SEASON TO DATE……287   DIFFERENCE……..-62

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………31 S   AT 12:28 P.M.
ASOS…………………..35 S   AT 12:30 P.M.
DAVIS………………….33 SSW AT 12:28 P.M. RMY 35
FASTEST MILE FOR YESTERDAY………………..26 S   AT 1:49 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..26 SSW AT 12:42 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….25 SSW AT 12:42 P.M.
AVERAGE WIND SPEED AND DIRECTION………….17.9 S
ASOS………………….18.0
DAVIS…………………16.2 SSW [196 deg]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.01  DEPARTURE……….-0.13
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….2.81  DEPARTURE……….+1.29
ASOS…………..2.80
TOTAL PRECIPITATION FOR THE YEAR……….27.36  DEPARTURE……….-1.13
ASOS………….27.66

PRELIMINARY CLIMATE SUMMARY FOR JULY 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

7/1  85/66/76/+6/0.00/695/76              31 SSW RMY 36
7/2  89/69/79/+9/T/639/70                 33 SSW RMY 38
7/3  91/68/80/+9/0.05/611/67              29 W   RMY 30  TSTM
7/4  72/61/67/-4/2.48/027/03              28 N   RMY N/A TSTM
7/5  77/55/66/-5/0.27/738/81              36 NW  RMY N/A
7/6  83/61/72/+1/0.00/892/98              29 SW  RMY 33
7/7  85/65/75/+4/T/563/62                 33 SW  RMY 38  TSTM [NO RAIN] 7/8  89/70/80/+8/0.00/763/84              31 SW  RMY 38
7/9  86/70/78/+6/0.00/779/86              28 SSW RMY N/A
7/10 80/65/73/+1/0.00/…/..              16 NW  RMY N/A
7/11 76/62/69/-3/0.00/…/..              22 NE  RMY N/A
7/12 85/60/73/+1/0.00/…/..              21 S   RMY 25
7/13 82/64/73/+1/…./…/..              31 S   RMY 35

7/14: morning low of 69F; the normal low is now 63F

DAILY RECORDS FOR JULY 2014
7/4- NEW DAILY RECORD RAINFALL OF 2.48 ins;
surpasses previous record of 1.78 ins. in 1950

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

RECORDS FOR JULY 14
HIGH 98F IN 1952
LOW 51F IN 1895, 1937
PRECIP 1.97 INS IN 1960
WIND 110e MPH NW IN 1942 [RECORD FOR MONTH]

RECORDS FOR JULY 15
HIGH 94F IN 1995
LOW 50F IN 1929, 1930
PRECIP 1.64 INS IN 1896
WIND 71 MPH WNW IN 2002

TODAY’S REPORT PREPARED BY: Brian Fitzgerald