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Friday, April 25, 2014

April 25, 2014

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

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY FRIDAY, APRIL 25, 2014 ALL TIMES ARE IN EASTERN STANDARD TIME CLEAR AND CALM TODAY WITH CLOUDS ON THE INCREASE FOLLOWING A GUSTY THURSDAY Thursday’s average wind speed of 23.5 MPH (uncorrected) was well above all our station’s average of 14.9 MPH, with gusts exceeding 40 MPH numerous times throughout the morning and early afternoon. A peak of 52 MPH from the NW was observed at 11:57 AM EST. This morning has largely featured very high cirrus fibratus growing denser along with some cirrostratus forming by late morning ahead of tomorrow’s anticipated rain. By 1:00 PM EST today a maximum of 62F had been reached under a thin overcast of cirrus fibratus with a few dense cirrus in all directions. Today’s Observations: 7 A.M. Weather: Thin overcast of cirrus fibratus Temperature: 45F; Dew Point: 26F; Wind: NNW at 9 kts, Sea-level pressure: 30.02 ins. Hg, rising unsteadily Visibility: 80 miles 6-hr max temp: 45F 6-hr min temp: 39F 24-hr precip: none BHO SA 1155 E300 –OVC 80 165/45/26/3309/002/ 8/002 52027 10045 20039 10 A.M. Weather: Scattered dense cirrus, thin overcast of cirrus fibratus Temperature: 55F; Dew Point: 25F; Wind: estimated, NW at 4 kts, Wind Speed and Direction: Light and variable Sea-level pressure: 30.01 ins. Hg, decreasing, then more slowly Visibility: 80 miles BHO SA 1455 250 SCT E300 –OVC 80 161/55/25/E3204/001/ 8/004 56004 1 P.M. Weather: Few dense cirrus in all directions, thin overcast cirrus fibratus Temperature: 59F; Dew Point: 23F; Wind: estimated SW at 6 kts, Wind Speed and Direction: Light and varying  S-NW Sea-level pressure: 29.94 ins. Hg, decreasing Visibility: 80 miles 6-hr max temp: 62F 6-hr min temp: 45F BHO SA 1755 E300 –OVC 80 138/59/23/E2406/994/ FEW DNS CI AQLDS WND LGT AND VRB/ 8/004 56023 10062 20045 WEATHER SUMMARY FOR THURSDAY, APRIL 24, 2014 TEMPERATURE (DEGREES F) MAX…..56    NORMAL…..59 MIN…..38    NORMAL…..41 MEAN….47    NORMAL…..50 DEPARTURE FROM 30-YEAR NORMAL…………………….-3 TOTAL DEPARTURE FOR THE MONTH……………………+49 [+1.8 DEGREES/DAY] HEATING DEGREE DAYS (SEASON JUL TO JUN) TOTAL HEATING UNITS FOR YESTERDAY…………..18  DEPARTURE……….+3 TOTAL HEATING UNITS FOR THE MONTH………….417  DEPARTURE………-51 TOTAL HEATING UNITS FOR THE SEASON………..6044  DEPARTURE………+92 TOTAL HEATING UNITS LAST SEASON TO DATE……5460  DIFFERENCE…….+584 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY………………52 NW  AT  11:57 A.M. AERO…………………..N/A ASOS…………………..53 NW  AT  11:56 A.M. DAVIS………………….51 WNW AT   3:52 P.M. RMY 54 FASTEST MILE FOR YESTERDAY………………..43 NW  AT  11:57 A.M. MAXIMUM 2-MINUTE ASOS AVERAGE……………..37 NW  AT  11:58 A.M. MAXIMUM 2-MINUTE DAVIS AVERAGE…………….35 NW  AT  11:59 A.M. AVERAGE WIND SPEED AND DIRECTION………….23.5 NW ASOS………………….22.4 DAVIS…………………19.8 NW [316 deg] * last of several occurrences… PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE………….-0.13 ASOS…………..0.00 TOTAL PRECIPITATION FOR THE MONTH……….3.20  DEPARTURE………….-0.55 ASOS…………..3.19 TOTAL PRECIPITATION FOR THE YEAR……….18.32  DEPARTURE………….+0.57 ASOS………….18.73 SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0  DEPARTURE………….. 0.0 TOTAL SNOWFALL FOR THE MONTH…………….0.8  DEPARTURE…………..-2.1 TOTAL SNOWFALL FOR THE SEASON…………..85.6  DEPARTURE………….+23.0 PRELIMINARY CLIMATE SUMMARY FOR APRIL 2014 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:  R.M. Young wind gust recording system TSTM: Thunderstorm day (thunder heard some time during day) ….: Data not yet available, records not finalized 4/1  48/31/40/-1/0.00/0.0/694/91          29 NNE AERO N/A        RMY N/A 4/2  56/34/45/+4/0.00/0.0/452/69          22 WSW AERO 20 MPH WSW RMY N/A 4/3  55/36/46/+4/0.00/0.0/707/92          23 NNW AERO 22 MPH NW  RMY 25 4/4  47/35/41/-1/0.31/0.0/255/33          26 ESE AERO N/A        RMY 25 4/5  51/33/42/-1/0.19/0.0/186/24          39 WNW AERO N/A        RMY 40 4/6  58/29/44/+1/0.00/0.0/755/97          25 W   AERO N/A        RMY N/A 4/7  59/44/52/+9/0.05/0.0/187/24          28 SSE AERO N/A        RMY N/A 4/8  62/41/52/+8/0.61/0.0/016/02          45 W   AERO N/A        RMY 44 4/9  60/36/48/+4/0.00/0.0/707/90          35 NW  AERO N/A        RMY 36 4/10 57/33/45/0/0.00/0.0/742/94           38 S   AERO N/A        RMY 39 4/11 70/45/58/+13/T/0.0/111/14            32 S   AERO N/A        RMY N/A 4/12 68/44/56/+11/0.00/0.0/699/88         28 W   AERO N/A        RMY 28 4/13 65/45/55/+10/0.04/0.0/215/27         35 S   AERO N/A        RMY N/A 4/14 73/55/64/+18/0.00/0.0/296/37         55 SW  AERO N/A        RMY 62 4/15 66/38/52/+5/1.22/0.0/000/00          62 S   AERO N/A        RMY 68 4/16 43/28/36/-11/0.43/0.8/…/..         39 NNW AERO N/A        RMY 39 4/17 39/29/34/-13/T/T/…/..              35 NE  AERO N/A        RMY 34 4/18 42/28/35/-13/0.00/0.0/…/..         25 E   AERO N/A        RMY 25 4/19 62/35/49/1/0.00/0.0/…/..           31 NW  AERO N/A        RMY 32 4/20 52/36/44/-5/0.00/0.0/…/..          21 E   AERO N/A        RMY 22 4/21 67/36/52/+3/0.00/0.0/…/..          25 SSW AERO N/A        RMY 26 4/22 72/44/58/+9/0.07/0.0/…/..          32 S   AERO N/A        RMY 33 4/23 52/43/48/-2/0.27/0.0/…/..          47 NW  AERO N/A        RMY 47 4/24 56/38/47/-3/0.00/0.0/…/..          52 NW  AERO N/A        RMY 54 4/25 morning low temp: 39F; the normal low is now 41F DAILY RECORDS FOR APRIL 2014 4/14 – Minimum temperature of 55F EQUALS RECORD HIGH MINIMUM FOR THIS DATE SET IN 1909. DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR APRIL 25 HIGH 83 IN 2009 LOW 24 IN 1892 PRECIP 1.38 IN. IN 1901 SNOWFALL 0.7 IN. IN 2002. PEAK GUST 66 MPH SE IN 1968 RECORDS FOR APRIL 26 HIGH 88 IN 2009 LOW 23 IN 1919 PRECIP 1.64 IN. IN 1931 SNOWFALL 1.0 IN. IN 2000 PEAK GUST 53 MPH SSW IN 1996 TODAY’S REPORT PREPARED BY: Brian Fitzgerald
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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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