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Saturday, April 6, 2024

April 6, 2024

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SATURDAY, APRIL 6, 2024 ALL TIMES ARE…

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BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SATURDAY, APRIL 6, 2024 ALL TIMES ARE IN EASTERN STANDARD TIME (EST) SUNRISE: 0517E SUNSET:  1816E NOR’EASTER REMNANTS BRING EARLY MORNING SNOW, LIGHT RAIN AND REDUCED VISIBILITY TO BLUE HILL TODAY… This morning there were light snow flurries which tapered off shortly after 8am EST. We had a brief peek of sunshine and then overcast skies moved in again. A band of precipitation from the stalled out system off the coast of Maine brought some early afternoon rain to the region along with intermittent sunshine. It has truly been a ‘typical’ spring day with a little bit of all types of weather today! What hasn’t been typical are the temperatures! The temperature has had a difficult time recovering and the overcast skies and cold, moist air haven’t helped any. We just made it to 41F during the late morning before the rain moved through, causing a dip in the already below normal temperatures. Winds continue to decrease from this week’s nor’easter. The average wind speed so far is around 10mph, primarily out of the NNW. This morning around 10:30am holds the current peak gust spot so far at around 29mph. The wind was fairly active during the morning but has weakened quite a bit in the afternoon. Visibility was around 50 miles during the early morning hours. We were holding at around 20 miles by the final observation, due to the rain and light fog in the area. The maximum temperature so far today is 41F degrees, which is 11 degrees below the normal high of 52F. The minimum temperature since midnight is 33F degrees, which is 2 degrees below the normal low of 35F. ————————————————————– Today’s Observations: 7 A.M. Weather: Light snow, overcast altostratus, few breaks in overcast NW-W, few stratus fractus ENE-SE-SW, virga ENE-E, distant SSW-WSW, precipitation very light, sun dimly visible Temperature: 34F; Dew Point: 34F; Relative Humidity: 98% Wind: NW @ 8 kts Sea-level pressure: 1005.2 mb; 29.68 in. Hg: rising unsteadily Visibility: 50 miles 6-hr Max temp: 36F 6-hr Min temp: 33F 24-hr Precip:  0.02 inches 24-hr Snowfall: Trace Snow Depth: 0.0 inches BHO SA 1155 E90 OVC 50S- 052/34/34/3208/968/ FEW BINOVC NW-N FEW STRFRA ENE-SE-SW VIRGA ENE-E DSNT SSW-WSW PCPN VRY LGT SUN DMLY VSBL TOTAL NEW SNW PST 24 HRS TRACE/ 8/62/ 52015 6001/ 70002 10036 20033 10 A.M. Weather: Overcast stratocumulus Temperature: 39F; Dew Point: 31F; Relative Humidity: 74% Wind: WNW @ 10 kts Sea-level pressure: 1006.2 mb; 29.71 in. Hg: rising unsteadily Visibility: 40 miles 3-hr Precip:  0.00 inches 3-hr Snowfall: 0.0 inches BHO SA 1455 E60 OVC 40 062/39/31/3410/971/ 8/5// 52010 1 P.M. Weather: Light rain, overcast stratus, few stratus fractus N-NE-ESE, precipitation very light, sun dimly visible Temperature: 39F; Dew Point: 37F; Relative Humidity: 92% Wind: NNW @ 6 kts, wind light Sea-level pressure: 1007.0 mb; 29.74 in. Hg: rising steadily Visibility: 20 miles, thin fog all quadrants 6-hr Max temp: 41F 6-hr Min temp: 34F 6-hr Precip:  Trace 6-hr Snowfall: 0.0 inches Snow Depth: 0 inches BHO SA 1755 E50 OVC 20R- 070/39/37/3306/974/ FEW STRFRA N-NE-ESE THN F ALQDS PCPN VRY LGT SUN DMLY VSBL WND LGT/ 8/6// 52008 6000/ 10041 20034 ————————————————————– SUMMARY FOR FRIDAY, APRIL 5, 2024 TEMPERATURE (DEGREES F) MAX…….45   NORMAL…..52 MIN…….31   NORMAL…..34 MEAN……38   NORMAL…..43 DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………-5 TOTAL DEPARTURE FOR THE MONTH……………………-10 [-1.8 DEGREES/DAY] HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024) TOTAL HEATING UNITS FOR YESTERDAY……………38  DEPARTURE…….+16 TOTAL HEATING UNITS FOR THE MONTH…………..137  DEPARTURE…….+21 TOTAL HEATING UNITS FOR THE SEASON…………4778  DEPARTURE……-685 TOTAL HEATING UNITS LAST SEASON TO DATE…….4635  DEPARTURE……+143 PEAK WIND GUST (MPH): Note: Instruments designated #1 = Main Tower, #2 = South Tower, F420C, Contacting, Merlin, and Richards are all Main Tower. E=Estimated F420C (Official)……….E33 WNW  @  01:52 P.M. VECTOR #1 (1-Sec)……….31 WNW  @  01:52 P.M. VECTOR #2 (1-Sec)……….34 WNW  @  01:50 P.M. DAVIS #1……………….33 WNW  @  01:52 P.M. DAVIS #2 ………………32 WNW  @  09:03 A.M. RMY #1 (Instantaneous)…..33 WNW  @  05:20 P.M. RMY #2 (Instantaneous)…..34 W    @  01:34 P.M. MERLIN…………………31 RICHARDS (C5C) (Inst)……33      @  01:52 P.M. FASTEST MILE: CONTACTING ANEMOMETER/OFFICIAL………………23 WNW  @  01:52 P.M. MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..22      @  02:21 P.M. MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..24      @  09:12 A.M. MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………24 W    @  01:52 P.M. MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………24 WNW  @  09:13 A.M. MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..21 WNW  @  01:52 P.M. MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..23 WNW  @  09:13 A.M. MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………22      @  02:22 P.M. AVERAGE WIND SPEED AND DIRECTION: CONTACTING/OFFICIAL……13.5 WNW [324 total miles] VECTOR #1…………….13.1 VECTOR #2…………….14.6 DAVIS #1……………..13.7 WNW DAVIS #2……………..14.4 NW RMY #1……………….12.4 WNW RMY #2……………….14.2 WNW RICHARDS (C5C)………..13.5 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST): TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.02 DEPARTURE…..-0.16 TOTAL PRECIPITATION FOR THE MONTH…………..2.44 DEPARTURE…..+1.59 TOTAL PRECIPITATION FOR THE YEAR (2024)…….22.49 DEPARTURE…..+7.62 SNOWFALL (INCHES) THROUGH THIS MORNING (EST): TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………TRACE DEPARTURE……-0.1 TOTAL SNOWFALL FOR THE MONTH………………..0.7 DEPARTURE……-0.2 TOTAL SNOWFALL FOR THE SEASON (2023-2024)……26.8 DEPARTURE…..-41.0 ————————————————————– PRELIMINARY CLIMATE SUMMARY FOR APRIL CALENDAR DAY DATA DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated) 4/1   56/40/48/+7/0.00/0.0/153/20         20 SSE VEC1 20 SSE RMY 19 4/2   47/35/41/0/0.07/0.0/115/15          25 E   VEC1 25 E   RMY 25 4/3   41/34/38/-4/1.10/T/000/00           53 E   VEC1 53 E   RMY 53 4/4   36/32/34/-8/1.25/0.7/…/..         63 ENE VEC1 64 ENE RMY 68 4/5   45/31/38/-5/0.01/T/…/..           33 WNW VEC1 31 WNW RMY 33 4/6 The low since midnight is 33F, the daily normal low is 35F. ————————————————————– APRIL DAILY RECORDS TO DATE NONE… ————————————————————– DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated) RECORDS FOR APRIL 6 HIGH 82 IN 1921 LOW 16 IN 1982 PRE 1.72 INS IN 1886 SNOW 12.3 INS IN 1982 WIND 71e MPH WNW IN 1940 RECORDS FOR APRIL 7 HIGH 90 IN 2010 LOW 13 IN 1982 PRECIP 1.72 IN. IN 1924 SNOWFALL 4.5 IN. IN 1967, 1996 PEAK GUST 65 MPH WNW IN 1982 TODAY’S REPORT PREPARED BY: Amanda Joly
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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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