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Monday, October 21, 2024

October 21, 2024

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA MONDAY, OCTOBER 21, 2024 ALL TIMES ARE…

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA MONDAY, OCTOBER 21, 2024 ALL TIMES ARE IN EASTERN STANDARD TIME (EST) SUNRISE: 0605E SUNSET:  1652E MAINLY SUNNY AND DRY WITH RECORD WARM TEMPERATURES…. Today has featured plenty of sunshine filtered at times through some mid and upper level clouds. The very warm air mass (for this time of year) continues in place over the region with record high temps being experienced this afternoon. The temperature has reached 81F so far early this afternoon which has established a new record high for the day, beating the old record of 79F set in 1979. Readings are running 20+ degrees above normal today. The dew point is higher today than yesterday, reaching the low 50s early this afternoon. As such, relative humidity levels are a bit higher than they were yesterday. This is good news as a brush fire that started yesterday within the Reservation to the east-northeast of Blue Hill continues to smolder today. The higher moisture content in the air is helping to make it a bit easier to get the fire completely extinguished. The wind has been fairly steady out of mainly a westerly direction, averaging around 10-11mph for the day so far. The peak gust occurred just before the 1pm observation period, with a value of 24mph. Visibility has been lower today than yesterday, in part due to the higher dew point, but mostly due to being stuck under a stagnant high pressure system, thus helping to trap pollution in the low levels of the atmosphere. The view has decreased from around 50 miles early this morning to only around 35-40 miles by early this afternoon. The maximum temperature so far today is 81F, which is 22 degrees above the normal high of 59F. The minimum temperature since midnight is 52F, which is 10 degrees above the normal low of 42F. ————————————————————– Today’s Observations: 7 A.M. Weather: Thin broken cirrus, few altocumulus distant W-NNE Temperature: 57F; Dew Point: 40F; Relative Humidity: 52% Wind: W @ 9 kts Sea-level pressure: 1021.5 mb; 30.17 in. Hg: falling unsteadily Visibility: 50 miles, hazy 6-hr Max temp: 57F 6-hr Min temp: 52F 24-hr Precip:  0.00 inches BHO SA 1155 E250 -BKN 50 215/57/40/2709/017/ FEW AC DSNT W-NNE K PLUME ENE HAZY/ 8/051 52010 10057 20052 10 A.M. Weather: Broken altocumulus, thin broken cirrus Temperature: 69F; Dew Point: 45F; Relative Humidity: 43% Wind: W @ 7 kts Sea-level pressure: 1021.4 mb; 30.16 in. Hg: rising, then falling Visibility: 40 miles, hazy 3-hr Precip: 0.00 inches BHO SA 1455 E85 BKN 250 -BKN 40 214/69/45/2607/016/ HAZY/ 8/051 58001 1 P.M. Weather: Clear, few cirrus all quadrants Temperature: 80F; Dew Point: 52F; Relative Humidity: 33% Wind: WSW @ 9G17 kts Sea-level pressure: 1019.2 mb; 30.10 in. Hg: falling, then more rapidly Visibility: 40 miles, hazy 6-hr Max temp: 81F 6-hr Min temp: 57F 6-hr Precip: 0.00 inches BHO SA 1755 CLR 40 192/80/52/2409G17/010/ FEW CI ALQDS HAZY/ 8/001 58022 10081 20057 ————————————————————– SUMMARY FOR SUNDAY, OCTOBER 20, 2024 TEMPERATURE (DEGREES F) MAX…….76  NORMAL…..60 MIN…….47  NORMAL…..42 MEAN……62  NORMAL…..51 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+11 TOTAL DEPARTURE FOR THE MONTH………………………+5 [+0.1 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025) TOTAL HEATING UNITS FOR YESTERDAY…………….3  DEPARTURE…….-11 TOTAL HEATING UNITS FOR THE MONTH…………..205  DEPARTURE…….-11 TOTAL HEATING UNITS FOR THE SEASON………….275  DEPARTURE…….-59 TOTAL HEATING UNITS LAST SEASON TO DATE……..242  DEPARTURE…….+33 COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024) TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE………0 TOTAL COOLING UNITS FOR THE MONTH…………….0  DEPARTURE……..-7 TOTAL COOLING UNITS FOR THE SEASON………….757  DEPARTURE…….+80 TOTAL COOLING UNITS LAST SEASON TO DATE……..704  DEPARTURE…….+53 PEAK WIND GUST (MPH): Note: Instruments designated #1 = Main Tower, #2 = South Tower, F420C, Contacting, Merlin, and Richards are all on Main Tower. E=Estimated F420C (Official)……….E21 WSW  @   08:56 P.M. VECTOR #1 (1-Sec)……….22 WSW  @   07:56 P.M. VECTOR #2 (1-Sec)……….23 WSW  @   09:10 P.M. DAVIS #1……………….21 WSW  @   08:56 P.M. DAVIS #2 ………………22 WSW  @   08:38 P.M. RMY #1 (Instantaneous)…..23 WSW  @   09:51 P.M. RMY #2 (Instantaneous)…..23 WSW  @   09:10 P.M. MERLIN…………………21 WSW RICHARDS (C5C) (Inst)…..OTS FASTEST MILE: CONTACTING ANEMOMETER/OFFICIAL………………17 WSW  @   09:34 P.M. MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..16      @   11:58 P.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17      @   11:36 P.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 WSW  @   11:58 P.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 WSW  @   10:04 P.M. MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 W    @   11:59 P.M. MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 WSW  @   11:36 P.M. MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS AVERAGE WIND SPEED AND DIRECTION: CONTACTING/OFFICIAL……10.8 WSW [260 total miles] VECTOR #1…………….10.8 VECTOR #2…………….11.3 DAVIS #1……………..11.1 WSW DAVIS #2……………..11.3 W RMY #1……………….10.6 WSW RMY #2……………….11.3 WSW RICHARDS (C5C)………….OTS PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.19 TOTAL PRECIPITATION FOR THE MONTH…………..0.53 DEPARTURE…..-2.95 TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.57 DEPARTURE…..+1.42 ————————————————————– PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN)/SUN(%)/PEAK GUST/VEC1/RMY GUST PEAK GUST: F420C (Official) VEC1: Vector #1 1-second gust RMY:  R.M. Young #1 wind gust recording system (Instantaneous) TSTM: Thunderstorm day (thunder heard some time during day) ….: Data not yet available, records not finalized M:    Missing data 10/1   66/55/61/+3/T/134/19               28 ENE VEC1 28 ENE RMY 29 10/2   66/52/59/+1/T/252/36               21 ENE VEC1 20 ENE RMY 20 10/3   72/52/62/+5/0.00/592/85            23 S   VEC1 23 S   RMY 23 10/4   74/54/64/+7/0.00/452/65            23 SW  VEC1 22 SW  RMY 22 10/5   72/52/62/+5/T/457/66               24 NNW VEC1 23 NNW RMY 24 10/6   65/47/56/0/0.00/655/95             20 SE  VEC1 19 SE  RMY 18 10/7   60/51/56/0/0.27/021/03             29 SSE VEC1 29 SSE RMY 31 10/8   64/45/55/0/0.00/663/97             21 NW  VEC1 21 NW  RMY 21 10/9   64/46/55/0/T/639/94                24 W   VEC1 23 WNW RMY 23 10/10  60/42/51/-4/0.00/616/91            36 NW  VEC1 36 NW  RMY 38 10/11  67/40/54/0/0.00/635/94             28 WSW VEC1 27 WSW RMY 27 10/12  71/48/60/+6/0.00/652/97            44 NW  VEC1 43 NW  RMY 45 10/13  50/44/47/-7/0.20/007/01            32 ENE VEC1 32 ENE RMY 30 10/14  51/38/45/-8/0.06/000/00            35 NW  VEC1 34 WNW RMY 36 10/15  55/35/45/-8/0.00/617/93            31 W   VEC1 30 WNW RMY 31 10/16  56/38/47/-5/0.00/615/93            32 NW  VEC1 31 NW  RMY 32 10/17  54/35/45/-7/0.00/…/..            22 NE  VEC1 22 NE  RMY 20 10/18  59/40/50/-2/0.00/…/..            28 NNE VEC1 28 NE  RMY 27 10/19  72/46/59/+8/0.00/…/..            20 WSW VEC1 19 WSW RMY 19 10/20  76/47/62/+11/0.00/…/..           21 WSW VEC1 22 WSW RMY 23 10/21  The low since midnight is 52F, the daily normal low is 42F. ————————————————————– OCTOBER DAILY RECORDS TO DATE NONE. ————————————————————– DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated) RECORDS FOR OCTOBER 21 HIGH 79F IN 1979 LOW 24F IN 1974 PRECIP 2.34 INCHES IN 1944 SNOWFALL TRACE IN 1895,1907,1941 PEAK GUST 69e MPH S IN 1976 RECORDS FOR OCTOBER 22 HIGH 85F IN 1979 LOW 23F IN 1940 PRECIP 2.38 INCHES IN 2014 SNOWFALL TRACE IN 1969, 2010 PEAK GUST 67 MPH ESE IN 1988 TODAY’S REPORT PREPARED BY: Matt Douglas
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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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