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BLUE HILL METEOROLOGICAL OBSERVATORY, MILTON, MASSACHUSETTS 02186
ELEVATION 635 FT. ABOVE MSL....10 MILES SSW OF BOSTON, MA
TUESDAY JULY 30, 2002

DAILY DISCUSSION... 7/30/2002.. 2 P.M.

A new record maximum low temperature may be broken today as our low only 
reached 75 degrees this morning.  The current record maximum low 
temperature is 74 set in 1949.

The top story today at the Observatory is not the heat, rather the 
spectacular cloud cover that remains over our region this afternoon.  As we 
observed the sky at 2 P.M., we noticed that there were 4 levels of clouds 
in the sky! Most noticeably, we could see altocumulus chaotic.

The mercury continues to rise as our high so far today has reached 89 
degrees.  Dewpoints continue to remain in the lower to mid 70's, which make 
the air seem more uncomfortable that normal.

Later in the week we can expect some relief, as temperatures and dewpoints 
may drop slightly.


OBSERVATIONS FOR TODAY.....7/30/02

8 A.M.
BHO SA 1155 E140 BKN 10 070/80/71/1910/974/ HAZY/ 8/030/ 57001 10080 20075

11 A.M.
BHO SA 1455 E120 BKN 12 069/86/71/2913G20/973/ FEW CU FRMG SW AND WNW HAZY/
8/130/ 56003

2 P.M.
BHO SA 1755 50 SCT 80 SCT 130 BKN 250 BKN 25 061/88/70/2815G22/971/ TCU E-S
MDT CU ALQDS AC CHAOTIC LGT HAZE/ 8/291/ 58007 10087 20075


THE DATA RECORDED FOR MONDAY JULY 29TH...
TEMPERATURES....CALENDAR DAY MIDNIGHT TO MIDNIGHT....
EASTERN STANDARD TIME...

MAX : 88  MIN: 69// ASOS MAX: 88  ASOS MIN: 69
NORMAL HIGH AND LOW: 81/63
MEAN  79 [+ 7]
TOTAL DEP. FOR JULY IS + 9 DEG. (near normal)

PRECIPITATION....ON 07/30 AS OF 8 A.M.

24 HRS ENDING 8 A.M.  .   0.00 INS.
ASOS......................0.00 INS.
JULY TOTAL................3.17 INS.
DEP. FRM NORMAL TO DATE..-0.33 INS.
JULY ASOS TOTAL............N/A

PRECIP. TOTAL YEAR 2002: 27.79 INS.
DEPARTURE FROM NORMAL....-1.38 INS.
ASOS TOTAL FOR 2002:       N/A


WIND DATA...MONDAY JULY 29, 2002

PEAK GUST ASOS:   28 MPH W   AT   10:39 A.M  EDT
PEAK GUST 420C:   27 MPH W   AT   10:40 A.M. EDT
PEAK GUST AERO:   27 MPH W   AT   10:40 A.M. EDT


JULY 2002 PRELIMINARY DATA....ALL IS CALENDAR DAY DATA....
BELOW IS ORDER OF DATA REPORTED....
MAX/MIN/MEAN/DEP/PRECIP/SUNSHINE/ OFFICIAL 420C WIND GUST
Aero = Aerovane recording wind system gust when significantly higher
... data as yet not available
TSTM = thunderstorm day

7/1  88/63/76/+7/0/649/71/ 29 W
7/2  91/71/81/+11/0/566/62/ 25 W
7/3  95/76/86/+16/0/821/90/ 20 WNW ***
7/4  96/74/85/+15/0/811/89/ 24 W
7/5  80/63/72/+2/0/865/95/ 36 WNW
7/6  81/59/70/0/0.02/619/68/ 30 N
7/7  74/63/69/-1/0/327/36/ 22 W
7/8  89/64/77/+6/0/744/82/ 27 SW
7/9  90/65/78/+7/0.73/299/33/ 28 NW/ TSTM
7/10 75/57/66/-5/0/833/92/ 30 NW/
7/11 71/51/61/-11/0/877/97/ 29 NW
7/12 79/55/67/-5/0/857/95/ 21 SW
7/13 84/60/72/+1/0/730/81/ 28 SW
7/14 85/63/74/+2/0/621/69/ 23 S
7/15 86/60/73/+1/1.11/548/61/ 71 WNW/SEVERE TSTM ***
7/16 76/59/68/-4/0/664/74/ 29 NW
7/17 83/55/69/-3/0/832/93/ 23 WSW
7/18 89/68/79/+7/0.01/572/64/ 25 W/ TSTM
7/19 74/61/68/-4/0.26/071/08/ 21 E/ TSTM
7/20 71/59/65/-7/0.01/258/29/ 23 NE
7/21 81/58/70/-2/0/685/77/ 27 S
7/22 81/62/72/0/0/692/78/ 33 SSW
7/23 93/68/81/+9/0.83/584/66/ 46 NW/TSTM
7/24 68/57/63/-9/0.02/618/70/ 33 NNE
7/25 72/55/64/-8/0/872/99/ 21 ENE
7/26 70/55/63/-9/0/650/74/ 28 ENE
7/27 71/58/65/-7/0.02/008/01/ 17 SSW
7/28 76/62/69/-3/0.17/061/07/ 24 S/ TSTM
7/29 88/69/82/+10/0/629/72/ 27 W
7/30 MORNING LOW 75

*** 7/3 new record high min. temp. of 76; previous
record was 75 degrees in 1911.
*** 7/15 new record peak wind gust of 71 WNW; previous
record was 60e SSW in 1945; A trace of hail

RECORDS FOR JULY 30
HIGH       99 IN 1949
LOW        51 IN 1956
PRECIP     1.84 1976
PEAK GUST  70e SSW IN 1944

RECORDS FOR JULY 31
HIGH       95 IN 1917
LOW        50 IN 1895,1918
PRECIP     1.34 IN 1892
PEAK GUST  43 SW IN 1971

RECORDS FOR AUGUST 1
HIGH       97 IN 1917
LOW        49 IN 1891
PRECIP     3.61 IN 1927
PEAK GUST  41 NNW IN 1985
e = estimated

Robert Skilling/Andrew Hoell 


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