Wednesday, January 22, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, JANUARY 22, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
A TOTAL OF 12.1 INCHES BLANKETED GREAT BLUE HILL
WITH SNOW ENDING BY MID MORNING.
Extremely light, fluffy snow fell across the summit of Great Blue Hill totaling
12.1 inches with a liquid content of 0.42 inches of water. This ratio of roughly
29:1 represents very dry snow not normally seen in our region. The bulk of the
snow that fell overnight occurred during temperatures that ranged from 11 to 5
degrees.
Snowfall for the month is now 20.5 inches above normal January totals, and also
20.2 inches above the seasonal average so far this winter.
Today’s Observations:
7 A.M.
Weather: Light snow, overcast nimbostratus, low drifting snow
Temperature: 6F; Dew Point: 1F; Wind: NNW at 14G25 kts
Sea-level pressure: 29.74 ins. Hg, decreasing, then increasing
Visibility: 3/4 of a mile
6-hr. min temp: 6F
6-hr precipitation: N/A
24-hour precipitation: 0.40 inch
24-hr snowfall: 11.6 inches
Total snow depth on ground: 11 inches
BHO SA 1155 E18 OVC 3/4S- 071/6/1/3414G25/974/ TOTAL NEW SNW PST 24 HRS
11.6 INS LW DRFTNG SNW/ 8/02/ 4/011 55009 600// ASOS 60004 MANUAL 70040
ASOS 70028 10008 20005
10 A.M.
Weather: Scattered altostratus, scattered nimbostratus, few altostratus SW-WNW,
sun dimly visible through nimbostratus, snow ended 9:45 A.M.
Temperature: 7F Dew Point: -5F; Wind: NNW at 13G22 kts,
Sea-level pressure: 29.68 ins. Hg, lower then steady
Visibility: 35 miles, 60 miles SW-NNW
BHO SA 1455 35 SCT E50 BKN 35 052/7/-5/3313G22/968/ SE45 FEW AC SW-WNW
LW DRFTNG SNW VSBY SW-NNW 60 MI SUN DMLY VSBL THRU VEIL OF NS/ 8/020 56019
1 P.M.
Weather: Broken cirrostratus, few stratocumulus NE-SE, few cirrocumulus
lenticularis NE
Temperature: 12F; Dew Point: -2F; Wind: NW at 11G22 kts,
Sea-level pressure: 29.63 ins. Hg, decreasing, then more slowly
Visibility: 55 miles
6-hr max. temp: 12F
6-hr min. temp: 5F
6-hr precipitation: 0.02 inch
6-hr snowfall: 0.5 inch
BHO SA 1755 E200 BKN 55 034/12/-2/3211G22/963/ FEW SC NE-SE FEW CCSL NE
TOTAL NEW SNW PST 6 HRS 0.5 IN STORM TOTAL 12.1 INS/ 8/408 55018
ASOS 60002 MANUAL 60002 10012 20005
WEATHER SUMMARY FOR TUESDAY, JANUARY 21, 2014
TEMPERATURE (DEGREES F)
MAX…..23 NORMAL…..34
MIN……8 NORMAL…..17
MEAN….16 NORMAL…..25
DEPARTURE FROM 30-YEAR NORMAL……………………-9
TOTAL DEPARTURE FOR THE MONTH…………………..+58 [+2.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..49 DEPARTURE……….+9
TOTAL HEATING UNITS FOR THE MONTH………….771 DEPARTURE………-57
TOTAL HEATING UNITS FOR THE SEASON………..3048 DEPARTURE………-85
TOTAL HEATING UNITS LAST SEASON TO DATE……2702 DIFFERENCE…….+346
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………29 WNW AT 12:32 A.M.
AERO…………………..30 WNW AT 12:32 A.M.
ASOS…………………..30 WNW AT 12:34 A.M.
DAVIS………………….29 WNW AT 12:34 A.M. RMY 32
FASTEST MILE FOR YESTERDAY………………..22 NNW AT 11:56 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..21 N AT 11:56 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….20 WNW AT 3:08 A.M.
AVERAGE WIND SPEED AND DIRECTION…………10.8 NNW
ASOS…………………11.9
DAVIS…………………9.4 NNW [336 deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.40 DEPARTURE………….+0.26
ASOS…………..0.28
TOTAL PRECIPITATION FOR THE MONTH……….4.56 DEPARTURE………….+1.58
ASOS…………..4.78
TOTAL PRECIPITATION FOR THE YEAR………..4.56 DEPARTURE………….+1.58
ASOS…………..4.78
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…….11.6 DEPARTURE………….+11.1
TOTAL SNOWFALL FOR THE MONTH………….32.2 DEPARTURE………….+20.5
TOTAL SNOWFALL FOR THE SEASON…………47.9 DEPARTURE………….+20.2
PRELIMINARY CLIMATE SUMMARY FOR JANUARY 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: RMY = R.M. Young wind gust recording system added 8/9/2011
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
1/1 26/16/21/-6/0.00/0.0/505/92 25 W AERO 25 MPH W RMY 27
1/2 24/00/12/-15/0.97/10.9/000/00 39 NNE AERO 39 MPH NNE RMY 39
1/3 12/-3/05/-21/0.38/4.7/270/49 36 N AERO 39 MPH N RMY 34
1/4 25/-4/11/-15/0.00/0.0/545/99 35 SSW AERO 37 MPH SSW RMY 38
1/5 42/23/33/+07/0.08/0.0/259 47 30 SE AERO 32 MPH SE RMY 42
1/6 57/25/41/+15/0.29/0.0/006/01 41 S AERO 46 MPH S RMY 48
1/7 25/06/16/-10/0.00/0.0/555/100 44 WNW AERO 46 MPH WNW RMY 42
1/8 21/3/12/-14/0.00/0.0/550/99 28 WSW AERO 29 MPH WSW RMY N/A
1/9 28/13/21/-5/0.00/0.0/540/97 23 WNW AERO 24 MPH WNW RMY 27
1/10 37/17/27/+2/0.05/0.3/000/00 17 SSW AERO 18 MPH SW RMY N/A
1/11 57/37/47/+22/0.67/0.0/000/00 50 S AERO 59 MPH S RMY 59
1/12 51/32/42/+17/0.04/0.0/286/51 41 W AERO 44 MPH W RMY 42
1/13 50/30/40/+15/0.00/0.0/…/.. 33 S AERO 36 MPH S RMY 37
1/14 49/41/45/+20/0.83/0.0/…/.. 35 S AERO 37 MPH S RMY 32
1/15 46/33/40/+15/0.00/0.0/…/.. 24 W AERO 23 MPH W RMY N/A
1/16 40/34/37/+12/0.00/0.0/…/.. 14 ENE AERO 13 MPH ENE RMY 14
1/17 44/33/39/+14/0.00/0.0/…/.. 21 SW AERO 21 MPH SW RMY 22
1/18 37/30/34/+9/0.82/4.2/…/.. 18 E AERO 17 MPH E RMY 18
1/19 32/27/30/+5/0.03/0.5/…/.. 28 SW AERO 35 MPH SW RMY 34
1/20 39/23/31/+6/0.00/0.0/…/.. 38 W AERO 41 MPH W RMY 42
1/21 23/8/16/-9/…./…/…/.. 29 WNW AERO 30 MPH WNW RMY 32
1/22 morning low temp: 6F; the normal low is now 17F
DAILY RECORDS FOR JANUARY 2014
None so far.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR JANUARY 22
HIGH 59F IN 1916
LOW -8F IN 1888,1976
PRECIP 1.24 INS. IN 1891,1987
SNOWFALL 10.0 INS. IN 2005
PEAK GUST 67 MPH W IN 1976
RECORDS FOR JANUARY 23
HIGH 62F IN 1906
LOW -10F IN 1976
PRECIP 2.40 INS. IN 1935
SNOWFALL 14.6 INS. IN 1966
PEAK GUST 85 MPH S IN 1992
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
