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Saturday, September 21, 2013

September 21, 2013

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, SEPTEMBER…

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, SEPTEMBER 21, 2013 ALL TIMES ARE IN EASTERN STANDARD TIME WARM WITH INCREASING CLOUDS AND HUMIDITY TODAY… TODAY IS THE 75TH ANNIVERSARY OF THE GREAT NEW ENGLAND HURRICANE OF 1938… While the weather remains comfortable today, a change is on the way tonight and tomorrow as a cold front approaches.  Ahead of the front the dew point has increased to the upper 50’s with the wind increasing from the S-SSW. Dense fog shrouded the summit early this morning, though this lifted by mid-morning, and the visibility has climbed to near 70 miles at mid-day under a partly sunny sky. The winds continue to increase at early afternoon with a peak gust so far to 30 mph S recorded at 2:22 PM EDT. Today marks the 75th anniversary of the Great New England Hurricane of 1938. The day was warm and humid with a high temperature of 77 degrees. As the wind increased during the afternoon one wind recorder was destroyed, but another survived as the storm passed in the late afternoon and recorded a 5-minute average wind on the summit of 121 mph from the south at 6:11 to 6:16 PM. From this, a peak gust was calculated at 186 mph (with an estimated error of +/- 30 or 40 mph). Other 5-minute average wind speeds to 119 mph (at 6:01 to 6:06 PM) and 116 mph (at 5:01 to 5:06 PM) were also record. The center of the tropical cyclone traveled well to the west of the area, bisecting Long Island before traveling rapidly northward through western CT, western MA, and western VT.  Consequently, despite the almost unimaginable wind, only 0.13 inch of rainfall was recorded that afternoon, though a total of about four inches of rain had fallen in the preceding days. The minimum sea-level pressure at the Observatory was 29.01 inches at 5:17 PM. A portion of the hand-written records from this day can be found on bluehillobservatory.org in the member content area. Today’s Observations: 7 A.M. Weather: Sky partly obscured in dense fog, overcast stratus, overcast partly thin, higher clouds occasionally visible, stratus drifting over summit, sun occasionally dimly visible Temperature: 59F; Dew Point: 58F; Wind: S at 10 kts Sea-level pressure: 30.01 ins. Hg, falling then increasing Visibility: 1/8 mile, variable 1/16 to 1/4 mile 6-hr min. temp: 57F BHO SA 1155 –X E2 OVC 1/8VF 162/59/58/1810/001/ F5 OVC PRTLY THN HIR CLDS OCNLY VSBL STRA DRFTG OVR SMT SUN OCNLY DMLY VSBL VSBY 1/16V1/4/ 8/531 55007 10059 20057 10 A.M. Weather: Scattered stratocumulus, scattered altocumulus, thin scattered cirrus Temperature: 69F; Dew Point: 59F; Wind: S at 16G21 kts Sea-level pressure: 29.98 ins. Hg, rising Visibility: 70 miles, light distant haze BHO SA 1455 30 SCT 120 SCT 250 –SCT 70 152/69/59/1916G21/998/ FEW CUFRA VCNTY STN LGT DSNT HZ/ 8/531 58010 1 P.M. Weather: Broken stratocumulus (2 layers), broken cirrus, few lower stratocumulus Temperature: 71F; Dew Point: 60F; Wind: S at 17G24 kts Sea-level pressure: 29.91 ins. Hg, falling Visibility: 70 miles, light distant haze 6-hr max. temp: 72F BHO SA 1755 E30 BKN 40 BKN 250 BKN 70 128/71/60/1917G24/991/ FEW LWR SC LGT DSNT HZ/ 8/501 56024 10072 20059 WEATHER SUMMARY FOR FRIDAY, SEPTEMBER 20, 2013 TEMPERATURE (DEGREES F) MAX…..78    NORMAL…..71 MIN…..54    NORMAL…..53 MEAN….66    NORMAL…..62 DEPARTURE FROM 30-YEAR NORMAL………………….+4 TOTAL DEPARTURE FOR THE MONTH…………………-10 [-0.7 DEGREE/DAY] COOLING DEGREE DAYS (SEASON JAN TO DEC) TOTAL COOLING UNITS FOR YESTERDAY…………..1   DEPARTURE……….0 TOTAL COOLING UNITS FOR THE MONTH………….55   DEPARTURE………+4 TOTAL COOLING UNITS FOR THE SEASON………..695   DEPARTURE…….+107 TOTAL COOLING UNITS LAST SEASON TO DATE……765   DIFFERENCE…….-70 HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL COOLING UNITS FOR YESTERDAY…………..0   DEPARTURE………-5 TOTAL COOLING UNITS FOR THE MONTH………….64   DEPARTURE……..+12 TOTAL COOLING UNITS FOR THE SEASON…………76   DEPARTURE………-1 TOTAL COOLING UNITS LAST SEASON TO DATE…….33   DIFFERENCE…….+43 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY………………18 SSW AT 11:57 P.M. * AERO…………………..18 SSW AT 11:57 P.M. * ASOS…………………..20 SSW AT 11:56 P.M. DAVIS………………….N/A                    RMY 23 FASTEST MILE FOR YESTERDAY………………..16 SSW AT 11:56 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE……………..16 S   AT 11:57 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE…………….N/A AVERAGE WIND SPEED AND DIRECTION………….8.3 SSW ASOS………………….7.2 DAVIS…………………7.0 SW [222 degrees] * last of several occurrences… PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00   DEPARTURE………….-0.14 ASOS…………..0.00 TOTAL PRECIPITATION FOR THE MONTH……….3.52   DEPARTURE………….+0.93 ASOS…………..3.63 TOTAL PRECIPITATION FOR THE YEAR……….41.53   DEPARTURE………….+3.92 ASOS…………..N/A* *ASOS malfunctioned during storm on 2/8-9, leading to erroneous totals PRELIMINARY CLIMATE SUMMARY FOR SEPTEMBER 2013 CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/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 9/1  76/67/72/+4/2.32/008/01         33 S   AERO 39 MPH S   RMY 38   TSTM 9/2  79/67/73/+5/0.43/056/07         30 SSE AERO 33 MPH SSE RMY N/A  TSTM 9/3  79/61/70/+3/0.00/219/28         28 S   AERO 29 MPH S   RMY 30   TSTM 9/4  78/57/68/+1/0.00/733/94         24 W   AERO 25 MPH W   RMY 25 9/5  66/51/59/-8/0.08/179/23         20 NNE AERO 20 MPH NNE RMY 21 9/6  68/46/57/-10/0.00/751/97        18 WSW AERO 17 MPH WSW RMY N/A 9/7  78/51/65/-1/0.00/594/77         20 WSW AERO 21 MPH WSW RMY 21 9/8  74/50/62/-4/0.00/646/84         31 NW  AERO 33 MPH NW  RMY 32 9/9  69/47/58/-8/T/529/69            23 SW  AERO 23 MPH SSW RMY N/A 9/10 73/56/65/0/0.03/007/01          30 S   AERO 32 MPH S   RMY 33 9/11 93/68/81/+16/0.00/654/86        25 SW  AERO 27 MPH SW  RMY N/A 9/12 85/66/76/+11/0.47/455/60        32 S   AERO 33 MPH S   RMY 34   TSTM 9/13 79/58/69/+5/0.17/242/32         24 NNW AERO 25 MPH NNW RMY 23 9/14 67/52/60/-4/0.00/361/48         21 NW  AERO 21 MPH NW  RMY 21 9/15 70/48/59/-5/0.00/547/73         17 WSW AERO 18 MPH WSW RMY 20 9/16 66/46/56/-7/0.02/179/24         29 NNW AERO 31 MPH NNW RMY 30 9/17 60/40/50/-13/0.00/722/97        27 NNE AERO 27 MPH NNE RMY 26 9/18 73/47/60/-2/0.00/726/98         18 W   AERO 18 MPH WSW RMY 20 9/19 78/51/65/+3/0.00/…/..         17 WSW AERO 16 MPH WSW RMY 18 9/20 78/54/66/+4/0.00/…/..         18 SSW AERO 18 MPH SSW RMY 23 9/21 morning low temp: 57F; the normal low is now 53F DAILY RECORDS FOR SEPTEMBER 2013 9/1  – NEW DAILY RECORD MAXIMUM PRECIPITATION OF 2.32 INCHES; surpasses previous record of 1.60 inches set in 1927 9/11 – TIED DAILY RECORD MAXIMUM HIGH TEMPERATURE OF 93F; ties record of 93F set in 1983 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR SEPTEMBER 21 HIGH 91 IN 1895 LOW 35 IN 1929, 1956, 1962 PRECIP 5.58 INS IN 1961 (HURRICANE ESTHER; RETURNED AS TS SEPT 25-26TH) PEAK GUST 186 MPH S IN 1938 (GREAT NEW ENGLAND HURRICANE; CALCULATED GUST, STATION RECORD) RECORDS FOR SEPTEMBER 22 HIGH 90F IN 1895, 1914 LOW 30F IN 1904 (Earliest freeze) PRECIP 1.16 INCHES IN 2001 PEAK GUST 60 MPH SSW IN 1989 TODAY’S REPORT PREPARED BY: Mike Iacono
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Blue Hill Observatory & Science Center · Legal

Data Use & Privacy Policy

Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
Part I — Data Use Policy
§ 01

Ownership and Proprietary Rights

All observational records, compiled datasets, metadata, database structures, and related materials provided by the Blue Hill Observatory & Science Center are the exclusive property of the Blue Hill Observatory & Science Center. The Observatory has maintained continuous weather observations at the summit of Great Blue Hill since 1885, and the entirety of that record — its compilation, structure, curation, and organization — constitutes a proprietary database protected under applicable United States law, including copyright law and common law database protections.

All rights not expressly granted in this Policy are reserved by the Observatory. No access to or use of Observatory data shall be construed as a waiver of any rights or as a license to use data beyond the scope expressly stated herein.

§ 02

Governing Law and Jurisdiction

This Policy shall be governed by and construed in accordance with the laws of the Commonwealth of Massachusetts, without regard to its conflict of law provisions. For interactions with international users, this Policy shall apply to the maximum extent permitted by applicable local law.

Any dispute arising from or related to this Policy shall be subject to the exclusive jurisdiction of the state and federal courts located in Norfolk County, Massachusetts. By accessing Observatory data, all users consent to personal jurisdiction in Massachusetts and waive any objection to the venue or inconvenience of such forum.

§ 03

Permitted Uses

Observatory data are made available for the following limited, non-commercial purposes only:

  • Personal study and analysis
  • Educational classroom use
  • Student projects
  • Non-commercial academic research
  • Publication of analyses, figures, models, or conclusions derived from the data, subject to the attribution requirements of Section 4

All other uses require prior written authorization from the Observatory.

§ 04

Attribution Requirement

Any use of Observatory data in any published, presented, or publicly distributed work must include the following verbatim acknowledgment:

“Data provided by the Blue Hill Observatory & Science Center, Milton, Massachusetts. Continuous weather observations since 1885.”

Failure to include proper attribution is a material violation of this Policy.

§ 05

Prohibited Uses

Unless explicitly authorized in writing, Users may not:

  • Resell, license, sublicense, or commercially exploit Observatory data in any form
  • Redistribute the dataset in whole or in part to any third party
  • Publish the dataset for download by third parties
  • Host, mirror, or archive the dataset on any external website, repository, or storage service
  • Upload the dataset to any public or institutional data repository
  • Provide the data through APIs, automated services, or subscription platforms
  • Incorporate the data into any commercial product, software, application, or service
  • Use the data for AI or machine learning systems intended for commercial use or external distribution
  • Use the data to create derivative datasets that enable reconstruction of the underlying observations
§ 06

Commercial Licensing

Organizations seeking to use Observatory data for commercial purposes must obtain a license prior to any such use. Licensing inquiries: data@bluehill.org.

§ 07

Automated Access

Automated scraping, bulk harvesting, or systematic downloading of Observatory data is strictly prohibited without prior written authorization.

§ 08

Enforcement and Remedies

Violation of this Policy may result in immediate revocation of data access, pursuit of legal remedies available under United States law, and referral to applicable authorities. The Observatory reserves all rights to seek injunctive relief, damages, and attorneys’ fees in connection with any unauthorized use of its data.

Part II — Privacy Policy
§ 09–10

Scope & Information Collected

This section governs the collection, use, storage, and disclosure of personal information from visitors to the Blue Hill Observatory website and users of its data services. The Observatory may collect contact information (name, email, organization) when voluntarily submitted, usage data including IP addresses and pages visited, and data download records.

§ 11–12

How We Use Information & Retention

Information is used solely for: responding to inquiries and licensing requests; monitoring and enforcing compliance with this Policy; improving website performance; and communicating Observatory news to opted-in users. The Observatory does not sell, rent, or share personal information with third parties for marketing purposes. Data access records may be retained indefinitely for compliance and enforcement purposes.

§ 13

International Users and Data Transfers

The Observatory is located in the United States. International users acknowledge their information will be processed in the United States under U.S. law. Users requiring specific data processing agreements under non-US law must contact data@bluehill.org before accessing data.

§ 14–16

Cookies, Security & Children’s Privacy

The Observatory website may use cookies for analytics and functionality. By continuing to use the site, users consent to cookie use. The Observatory implements reasonable measures to protect personal information but cannot guarantee absolute security. Observatory data services are not directed at children under 13.

Part III — General Provisions
§ 17–20

Modifications, Severability, Entire Agreement & Contact

The Observatory reserves the right to modify this Policy at any time. Updated versions will be posted at bluehill.org. Continued use of Observatory data following any modification constitutes acceptance of the revised Policy. This Policy constitutes the entire agreement between the User and the Observatory. Questions and licensing inquiries: Blue Hill Observatory & Science Center, Milton, Massachusetts — data@bluehill.org

By accessing, downloading, or using any Blue Hill Observatory data or services, you acknowledge that you have read, understood, and agree to be bound by this Policy.
Effective January 1, 2025 · Blue Hill Observatory & Science Center · Milton, Massachusetts
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