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Monday, November 25, 2013

November 25, 2013

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

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY MONDAY, NOVEMBER 25, 2013 ALL TIMES ARE IN EASTERN STANDARD TIME UNSEASONABLY COLD EARLY SEASON ARCTIC AIR MASS BRINGS NEAR RECORD COLD MAXIMUM TEMPERATURE SUNDAY WEST-NORTHWEST TO NORTHWEST WINDS GUST OVER 50 MPH DEW POINT TEMPERATURES DROP TO NEGATIVE SINGLE NUMBERS An unusually strong Arctic high pressure system which was centered along the North Dakota-Canada border early Saturday morning had a central pressure of 1050 millibars or 31.00 inches. Low temperatures dropped to 22 below zero in North Dakota certainly unusually cold even for that location this early in the season. The Arctic cold front moved through New England Saturday night. Here at the Observatory temperatures fell to 27 degrees by midnight Saturday which actually became the high for Sunday, yesterday, November 24, when the record low maximum was just one degree below that reading at 26 degrees November 24, 1936. Actually the coldest maximum temperature this early in the season is 21 on November 23, 1888. Yesterday’s daytime afternoon maximum was 26 degrees. Dew points continued in single numbers below zero today, most unusual for November.  Relative humidity dropped to 20 to 25%. Today’s Observations: 7 A.M. Weather: Scattered altocumulus lenticularis, scattered cirrus, thin scattered cirrus, few stratocumulus distant S offshore, all clouds NW-E except distant stratocumulus S Temperature: 14F; Dew Point: -2F; Wind: WNW at 12 kts. Wind: Gust to 20 kts past hour Sea-level pressure: 30.33 ins. Hg, increasing then more rapidly Visibility: 75 miles, light distant haze 6-hr min temp: 14F BHO SA 1155 180 SCT 220 SCT 250 -SCT 75 270/14/-2/2912/033/ FEW SC DSNT S ALG HRZN PTCHS ACSL NW-E CLDS AC/CI ALL NW-E LGT DSNT HZ GST 20 KTS PST HR WNDCHILL ZERO/ 8/541 52022 10017 20014 10 A.M. Weather: Clear, few altocumulus/altocumulus lenticularis distant WSW-NW, few cirrus distant SSW-W Temperature: 22F; Dew Point: -5F; Wind: WNW at 11 kts. Sea-level pressure: 30.37 ins. Hg, increasing then increasing more slowly Visibility: 80 miles BHO SA 1455 CLR 80 283/22/-5/2911/037/ FEW AC/ACSL DSNT WSW-NW FEW CI DSNT SSW-W LGT DSNT HZ WND 26V33/ 8/041 51013 1 P.M. Weather: Clear, few altocumulus lenticularis distant WNW, cirrus mostly distant SE-SW-NW Temperature: 30F; Dew Point: -6F; Wind: WNW at 12 kts, Wind: Direction variable W-NNW Sea-level pressure: 30.34 ins. Hg, falling then more slowly Visibility: 80 miles BHO SA 1755 CLR 80 274/30/-6/3012/034/ FEW ACSL DSNT WNW CI MSTLY DSNT SE-SW-NW WND 26V33/8/041 56009 10031 20014 WEATHER SUMMARY FOR SUNDAY, NOVEMBER 24, 2013 TEMPERATURE (DEGREES F) MAX…..27    NORMAL…..47 MIN…..17    NORMAL…..31 MEAN….22    NORMAL…..39 DEPARTURE FROM 30-YEAR NORMAL…………………-17 TOTAL DEPARTURE FOR THE MONTH…………………-10 [-0.6 DEGREE/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY…………..43  DEPARTURE……..+17 TOTAL HEATING UNITS FOR THE MONTH………….544  DEPARTURE……..+10 TOTAL HEATING UNITS FOR THE SEASON………..1021  DEPARTURE……..-76 TOTAL HEATING UNITS LAST SEASON TO DATE…….960  DIFFERENCE…….+61 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY………………53 NW  AT  3:34 P.M. AERO…………………..59 NW  AT  3:34 P.M. ASOS…………………..58 NW  AT  3:35 P.M. DAVIS………………….54 W   AT  2:33 P.M. RMY 57 FASTEST MILE FOR YESTERDAY………………..42 NW AT 2:41 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE……………..38 NW  AT  3:36 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE…………….36 WNW AT  2:41 P.M. AVERAGE WIND SPEED AND DIRECTION…………24.8 WNW ASOS………………….23.5 DAVIS…………………21.2 WNW [300 degrees] 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……….1.23   DEPARTURE…………-2.56 ASOS…………..1.22 TOTAL PRECIPITATION FOR THE YEAR……….44.24   DEPARTURE…………-3.32 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………….-0.2 TOTAL SNOWFALL FOR THE MONTH………….0.2     DEPARTURE………….-1.2 TOTAL SNOWFALL FOR THE SEASON…………0.2     DEPARTURE………….-1.5 PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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 11/1  68/56/62/+16/0.10/0.0/012/02        60 SSW AERO N/A N/A    RMY 66 11/2  65/49/57/+11/0.00/0.0/296/48        22 WSW AERO N/A N/A    RMY 23 11/3  49/30/40/-6/0.06/T/135/22           23 N   AERO N/A N/A    RMY N/A 11/4  42/27/35/-10/0.00/0.0/588/96        24 NNE AERO N/A N/A    RMY 25 11/5  50/29/40/-5/0.00/0.0/487/80         16 SSW AERO N/A N/A    RMY 17 11/6  59/40/50/+5/0.00/0.0/419/69         30 SSW AERO 31 MPH SSW RMY 33 11/7  65/37/51/+6/0.31/0.0/079/13         33 SW  AERO 37 MPH SW  RMY 37 11/8  48/31/40/-4/T/T/0.0/421/70          37 WNW AERO 37 MPH WNW RMY 39 11/9  44/29/37/-7/0.00/0.0/366/61         25 WNW AERO 25 MPH WNW RMY 29 11/10 52/40/46/+2/0.08/0.0/108/18         31 WNW AERO 33 MPH WNW RMY N/A 11/11 51/36/44/+1/0.00/0.0/500/84         36 WNW AERO 37 MPH WNW RMY 37 11/12 48/24/36/-7/0.11/0.2/000/00         42 SW  AERO 43 MPH SW  RMY 43 11/13 35/21/28/-15/0.00/0.0/591/100       29 NW  AERO 30 MPH NW  RMY 30 11/14 49/26/38/-4/0.00/0.0/536/91         25 SW  AERO 25 MPH SW  RMY 28 11/15 59/38/49/+7/0.00/0.0/393/67         24 S   AERO 25 MPH S   RMY 26 11/16 59/40/50/+8/0.00/0.0/363/62         20 WSW AERO 20 MPH WSW RMY N/A 11/17 59/42/51/+10/0.07/0.0/000/00        23 SSE AERO 25 MPH SSE RMY N/A 11/18 65/46/56/+15/0.28/0.0/400/69        40 SSW AERO 40 MPH S   RMY N/A 11/19 46/28/37/-4/0.00/0.0/428/74         46 WNW AERO 46 MPH WNW RMY 46 11/20 40/25/33/-7/0.00/0.0/…/..         23 NW  AERO 22 MPH NW  RMY 22 11/21 46/26/36/-4/0.00/0.0/…/..         16 SW  AERO 16 MPH SW  RMY N/A 11/22 46/39/43/+3/0.22/0.0/…/..         17 WSW AERO 18 MPH SW  RMY N/A 11/23 46/27/37/-2/0.00/0.0/…/..         40 WNW AERO 44 MPH WNW RMY 48 11/24 27/17/22/-17/0.00/0.0/…/..        53 NW  AERO 59 MPH NW  RMY 57 11/25  morning low temp: 14F; the normal low is now 31F DAILY RECORDS FOR NOVEMBER 2013 None so far. DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR NOVEMBER 25 HIGH 71 IN 1979 LOW 13 IN 1938 PRECIP 3.10 INCHES IN 1983 SNOWFALL 8.0 INS IN 1888 PEAK GUST 94e E IN 1950 RECORDS FOR NOVEMBER 26 HIGH 66 IN 1979 LOW 6 IN 1938 PRECIP 2.22 INS IN 1888 SNOWFALL 3.0 INS IN 1974 PEAK GUST 78 SSE IN 1964 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
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  • 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
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§ 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

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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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