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Thursday, December 19, 2013

December 19, 2013

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

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, DECEMBER 19, 2013 ALL TIMES ARE IN EASTERN STANDARD TIME THE WARMING TREND BEGINS TODAY ON INCREASING SW WINDS WIND GUSTS TO WELL OVER 30 MPH AND A FEW OVER 40 MPH TEMPERATURES RISING PAST 40 DEGREES AFTER LONG COLD SPELL The end of a 12-day stretch of below normal temperatures came yesterday after beginning December 7.  Today the mean temperature will average a few degrees above normal for quite a nice change for those of us who do not like the early arrival of winter temperatures.  Official astronomical winter begins with the winter solstice around noon this Saturday. The 10-inch snow cover here on the summit will be steadily melting down as this warmer than normal trend is expected to last through the coming weekend. Today’s Observations: 7 A.M. Weather: Overcast altocumulus, breaks in overcast, hazy Temperature: 27F; Dew Point: 19F; Wind: SW at 12 kts, Sea-level pressure: 30.08 ins. Hg, about steady Visibility: 15 miles, hazy 6-hr. min temp: 22F 24-hr precip: none 24-hr snowfall: none Snow on ground: 10 inches BHO SA 1155 E95 OVC 15 187/27/19/2312/008/ BINOVC HAZY/ 8/07/ 4/010 51001 10027 20022 10 A.M. Weather: Clear, altocumulus, cirrus NW-E, hazy Temperature: 32F; Dew Point: 20F; Wind: SW at 15 kts, Wind: Gust to 24 kts past hour Sea-level pressure: 30.07 ins. Hg, falling slightly but more rapidly Visibility: 15 miles, except 20 miles WNW, hazy BHO SA 1455 CLR 15 182/32/20/2215/007/ AC/CI NW-E VSBY WNW 20 HAZY ALQDS WND GST TO 24 KTS PST HR/ 8/041 58005 1 P.M. Weather: Clear, few cirrus, hazy Temperature: 40F; Dew Point: 22F; Wind: SW at 15G19 kts, Wind: Peak wind 28 kts from SW @ 12:21 P.M., Wind: Direction variable SSW-W Sea-level pressure: 29.98 ins. Hg, falling then more slowly Visibility: 30 miles, hazy 6-hr max. temp. 41F BHO SA 1755 CLR 30 153/40/22/2315G19/998/ FEW CI HAZY PK WND 2328/21 WND 20V27 8/001 56029 10041 20026 WEATHER SUMMARY FOR WEDNESDAY, DECEMBER 18, 2013 TEMPERATURE (DEGREES F) MAX…..32    NORMAL…..38 MIN…..15    NORMAL…..23 MEAN….24    NORMAL…..31 DEPARTURE FROM 30-YEAR NORMAL………………….-7 TOTAL DEPARTURE FOR THE MONTH…………………-74 [-4.3 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY…………..41  DEPARTURE………+6 TOTAL HEATING UNITS FOR THE MONTH………….640  DEPARTURE……..+72 TOTAL HEATING UNITS FOR THE SEASON………..1864  DEPARTURE……..+34 TOTAL HEATING UNITS LAST SEASON TO DATE……1601  DIFFERENCE……+263 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY………………29 WNW AT 12:28 P.M. * AERO…………………..30 NW  AT  8:48 A.M. ASOS…………………..30 NW  AT  8:49 A.M. DAVIS………………….28 WNW AT 12:27 P.M. RMY 29 FASTEST MILE FOR YESTERDAY………………..23 WNW AT 12:28 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE……………..22 WNW AT 12:29 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE…………….20 WNW AT 12:27 P.M. AVERAGE WIND SPEED AND DIRECTION…………14.8 NW ASOS…………………14.9 DAVIS………………..12.7 WNW [300 degrees] * last of several occurrences… PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE………….-0.16 ASOS…………..0.00 TOTAL PRECIPITATION FOR THE MONTH……….3.25  DEPARTURE………….+0.32 ASOS…………..3.27 TOTAL PRECIPITATION FOR THE YEAR……….49.85  DEPARTURE………….-1.61 ASOS…………..N/A** ** ASOS malfunctioned during storm on 2/8-9, leading to erroneous totals SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M…….0.0     DEPARTURE………….-0.4 TOTAL SNOWFALL FOR THE MONTH…………15.0*    DEPARTURE………….+8.3 TOTAL SNOWFALL FOR THE SEASON………..15.2     DEPARTURE………….+5.9 The recent storm total of 5.9 now corrected to 6.8 ins. PRELIMINARY CLIMATE SUMMARY FOR DECEMBER 2013 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 12/1  45/30/38/+1/0.28/T/000/00           22 SSE AERO 23 MPH SSE RMY 23 12/2  38/34/36/0/T/0.0/000/00             15 NW  AERO 15 MPH NW  RMY 16 12/3  45/32/39/+3/0.00/0.0/284/51         18 NNW AERO 18 MPH NNW RMY 20 12/4  43/29/36/+1/0.00/0.0/389/70         21 WNW AERO 21 MPH WNW RMY 21 12/5  53/38/46/+11/0.02/0.0/000/00        36 S   AERO 40 MPH S   RMY 39 12/6  55/33/44/+9/0.38/T/000/00           25 SSW AERO 28 MPH SSW RMY N/A 12/7  40/26/33/-1/0.12/T/287/52           23 NW  AERO 25 MPH NW  RMY N/A 12/8  30/22/26/-8/T/T/039/07              25 NW  AERO 27 MPH NW  RMY N/A 12/9  41/25/33/-1/0.35/0.6/000/00         28 E   AERO 28 MPH E   RMY 24 12/10 33/21/27/-6/0.14/2.1/000/00         28 W   AERO 28 MPH W   RMY 28 12/11 28/19/24/-9/0.00/0.0/345/63         27 SW  AERO 28 MPH SW  RMY 27 12/12 23/14/19/-14/0.00/0.0/…/..        28 WNW AERO 31 MPH NW  RMY 30 12/13 28/14/21/-11/0.00/0.0/…/..        31 W   AERO 32 MPH W   RMY 33 12/14 28/9/19/-13/0.45/4.8/000/00         30 E   AERO 26 MPH E   RMY N/A 12/15 36/21/29/-3/0.98/2.0/…/..         48 NE  AERO 50 MPH NE  RMY 51 12/16 27/14/21/-10/0.00/0.0/…/..        36 W   AERO    MPH W   RMY N/A 12/17 23/7/15/-16/0.53/5.5/…/..         28 N   AERO 30 MPH N   RMY 28 12/18 32/15/24/-7/0.00/0.0/…/..         29 WNW AERO 30 MPH NW  RMY 29 12/19  morning low temp: 22F; the normal low is now 23F DAILY RECORDS FOR DECEMBER 2013 None so far. DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR DECEMBER 19 HIGH 59 IN 1899 LOW -1 IN 1919 PRECIP 2.06 INS. IN 1986 SNOWFALL 14.1 INS. IN 1945 PEAK GUST 68 NE IN 1986 RECORDS FOR DECEMBER 20 HIGH 61 IN 1957 LOW -16 IN 1942 PRECIP 1.69 INS. IN 1936 SNOWFALL 13.7 INS. IN 2009 PEAK GUST 75 MPH S IN 2002 TODAY’S REPORT PREPARED BY: Robert Skilling
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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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