BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, AUGUST 8, 2007   
ALL TIMES ARE IN EASTERN STANDARD TIME

SHOWERS BRING LESS THAN A QUARTER OF AN INCH THIS MORNING, 
WARM AND HUMID CONDITIONS REMAIN...

Light to moderate showers briefly passed the observatory between 
6 A.M. and 9 A.M., leaving a total of 0.22 inches. The dewpoint 
temperature reached an oppressive 73 degrees by noon and low 
cloudiness was stubborn to clear away.  This allowed an initially 
slow but eventually rapid increase in the air temperature to 84 
degrees early this afternoon. Peak wind gusts reached 37 MPH from 
the S late this morning. As of 1 P.M. the average wind speed for 
the day was approximately 17 MPH from the S.  

Today's observations:
 
7 A.M.   
Weather: Partial obscurement with fog, 
moderate rain showers, briefly heavy rain showers, and fog
Temperature: 70F, Dew point: 70F, Wind: SSE at 08 kts
Sea-level pressure: 29.77 inches Hg, falling 
Visibility: 1/4 mile
Visibility: 1/8 variable 1/2  
6-hour min temp: 70 deg. F
24-hour precip: 0.12 inch     
BHO SA 1155 –X E3 OVC 1/4VRWF 082/70/70/1508/977/ F6 STRA 
DRFTG OVR SMT VSBY 1/8V1/2 BRFLY RW+/ 8/6// 58002 ASOS 60011 
MANUAL 6012/ ASOS 70011 MANUAL 70012 10071 20070  

10 A.M.   
Weather: Broken stratus, stratocumulus and altocumulus  
Temperature: 77F, Dew point: 70F, Wind: S at 18G25 kts 
Wind: Peak gust at 20 past the hour 29 knots S
Wind: Variability SSE-SSW
Sea-level pressure: 29.66 inches Hg, falling
Visibility: 8 miles, hazy
BHO SA 1455 E20 BKN 30 BKN 130 BKN 8 044/77/70/1820G27/966/ 
PK WND 1929/20/ WND 15V21 HAZY/ 8/530 56038 ASOS 60010 MANUAL 6010/ 
 
1 P.M.
Weather: Scattered stratocumulus and cirrus
Temperature: 84F, Dew point: 73F, Wind: SSW at 14G24 kts
Wind: Variability S-WSW
Sea-level pressure: 29.61 ins. and falling
Visibility: 10 miles, hazy
6-hour max. temp: 84 deg. F
6-hour precip: 0.10 in. 
BHO SA 1755 20 SCT 250 SCT 10 027/84/73/2114G24/961/ 
SC/FEW MDT CUFRM TOPS WND 18V24 HAZY/ 8/501 58017 ASOS 60010 MANUAL 
6010/ 10084 20070 
  
WEATHER SUMMARY FOR TUESDAY, AUGUST 7
 
TEMPERATURE (DEGREES F)
MAX.....82    NORMAL.....81 
MIN.....67    NORMAL.....62
MEAN....75    NORMAL.....71
DEPARTURE FROM 30-YEAR NORMAL.........+4
TOTAL DEPARTURE FOR THE MONTH........+29  (+3.9 DEGREES/DAY)
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY..............15  SSE AT 7:52 P.M.    
                   AEROVANE...............13  SSE AT 7:52 P.M.          
                   ASOS...................N/A  #
                   DAVIS..................17  SSW AT N/A               
FASTEST MILE FOR YESTERDAY................09  SSE AT 7:53 P.M. *           
MAXIMUM 2-MINUTE ASOS AVERAGE.............N/A  # 
MAXIMUM 2-MINUTE DAVIS AVERAGE............14  SSW AT N/A                
AVERAGE WIND SPEED AND DIRECTION..........6.5 NE
                   ASOS...................N/A  #
                   DAVIS..................6.5 NE [127 deg. ]   
* last of several occurrences... 

# ASOS WINDS SWITCHED OFF BY NWS 6/6, IT IS NOT KNOWN WHEN 
  THAT DATA WILL RESUME
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.12  DEPARTURE.....-0.01
                         ASOS..............0.11 
TOTAL PRECIPITATION FOR THE MONTH..........0.17  DEPARTURE.....-0.70 
                         ASOS..............0.15    
TOTAL PRECIPITATION FOR THE YEAR..........30.53  DEPARTURE.....+0.24
                   ASOS FOR YEAR..........29.82     

PRELIMINARY CLIMATE SUMMARY FOR AUGUST 2007......CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
 
AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available

8/1  84/67/76/+4/0/782/94     20 NNE   
8/2  92/68/80/+8/0/823/95     21 S     
8/3  92/70/81/+9/0/760/88     28 SSW
8/4  89/71/80/+8/0/827/96     29 WSW  
8/5  80/62/71/-1/0/.../..     23 SSE 
8/6  77/61/69/-3/0.05/129/15  36 SSE Aero 34 MPH SSE TSTM  
8/7  82/67/75/+4/0.12/.../..  15 SSE 

8/8  morning low temp. 70 deg; normal low now 62 deg. 
     morning rainfall through 10 A.M.: 0.22 in.     


NEW DAILY RECORDS FOR AUGUST 2007:  

None to date

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

RECORDS FOR AUGUST 8
HIGH 93F IN 1909,1949
LOW 47F IN 1903
PRECIP 3.08 INCHES IN 1976
PEAK GUST 45 MPH WNW IN 1958

RECORDS FOR AUGUST 9
HIGH 100F IN 1949
LOW 49F IN 1899
PRE 2.65 INS IN 1976
PEAK GUST 90 MPH SW IN 1968

TODAY'S REPORT PREPARED By: Robert Skilling and Eli Melaas