--- title: "NOAA tides for photographers: station, datum, time zone" description: "Read NOAA tide tables for beach photography with station identity, height datum, units, and time settings preserved in a source-linked production brief." canonical: "https://scalewithsearch.com/articles/noaa-tide-table-photographer-station-datum-time-zone" --- ## Site navigation - [Scale With Search](https://scalewithsearch.com/) - Services - Services - [AI systems](https://scalewithsearch.com/ai-systems) - [Site build](https://scalewithsearch.com/work#site-build) - [Whole website fix](https://scalewithsearch.com/work#whole-website-fix) - [Content library with SEO](https://scalewithsearch.com/work#content-library) - [Working session](https://scalewithsearch.com/audit) - Start here - [Send your brief](https://scalewithsearch.com/work#send-your-brief) - [Example scope](https://scalewithsearch.com/work#review-the-example-scope) - [Prices and terms](https://scalewithsearch.com/work#prices-and-terms) - Industries - Real estate - [Real estate agents and teams](https://scalewithsearch.com/for/real-estate) - [Platforms, ownership, and IDX](https://scalewithsearch.com/for/real-estate/real-estate-website-platforms-ownership-idx) - [Search, content, and AI](https://scalewithsearch.com/for/real-estate/real-estate-search-content-ai) - [Inquiries, campaigns, and handoffs](https://scalewithsearch.com/for/real-estate/real-estate-website-inquiries-campaigns-handoffs) - [Buyer, seller, and local pages](https://scalewithsearch.com/for/real-estate/real-estate-buyer-seller-local-resources) - [Rules, privacy, and trust](https://scalewithsearch.com/for/real-estate/real-estate-website-rules-privacy-trust) - Browse by business - [Trades and home services](https://scalewithsearch.com/for/#group-trades) - [Health, wellness, and animal care](https://scalewithsearch.com/for/#group-practices) - [Law, finance, and IT](https://scalewithsearch.com/for/#group-professional) - [Marketing and SEO agencies](https://scalewithsearch.com/for/#group-agencies) - [Shops and manufacturers](https://scalewithsearch.com/for/#group-manufacturing) - [Restaurants, shops, studios, and nonprofits](https://scalewithsearch.com/for/#group-local-services) - Chiropractic practices - [Chiropractic and wellness practices](https://scalewithsearch.com/for/chiropractic-and-wellness-practices) - [Chiropractic and physical therapy clinics](https://scalewithsearch.com/for/chiropractic-and-physical-therapy-clinics) - [All industries](https://scalewithsearch.com/for/) - Resources - Free tools - [AI readiness check](https://scalewithsearch.com/check) - [Free tools](https://scalewithsearch.com/tools/) - [Free Starter Kit](https://scalewithsearch.com/kit/business-memory-starter-kit.zip) - Guides - [AI-native library](https://scalewithsearch.com/ai-native) - [Industry intelligence](https://scalewithsearch.com/intelligence) - [Office job guides](https://scalewithsearch.com/guides/) - [Business memory](https://scalewithsearch.com/articles/business-memory-for-ai-agents-guide) - [Agent governance](https://scalewithsearch.com/articles/ai-agent-governance-guide-small-business) - [Migration and ownership](https://scalewithsearch.com/articles/leaving-vendor-ai-memory-guide) - Articles - [All articles](https://scalewithsearch.com/articles/) - [What changed](https://scalewithsearch.com/changes/) - About - Evidence - [Proof](https://scalewithsearch.com/proof) - Scale With Search - [About](https://scalewithsearch.com/about) - [How it works](https://scalewithsearch.com/how-it-works) # NOAA tide tables for photographers: check station, datum, and time zone Before copying a predicted low tide into a beach photography brief, preserve the settings that give the number meaning. Record the station, date, height reference, units, and time basis. Keep the source beside the entry so another producer can reproduce the reading. This guide proposes a way to document that reference. It does not select a shooting location or establish conditions there. Use it with your studio's existing production process. The [photography office guide](/for/photographers) covers the broader handling of approved briefs and staff decisions. Imagine receiving a screenshot that says “low, 06:30, 0.4.” You cannot yet tell which station it describes. You also lack the date, units, height reference, and clock setting. The useful next step is to recover that context before discussing what the image might mean for the shoot. ## Identify the station before reading the curve NOAA's prediction guide identifies stations by name or a seven-digit identifier. Its station selection section explains that predictions depend on data collected and analyzed for a location. [NOAA Tide Predictions Users Guide, station selection, accessed 2026.10.28](https://tidesandcurrents.noaa.gov/noaatidepredictionshelp.html). Copy the displayed name and identifier together. In the production brief, give the shooting location a separate field. Describe why the producer chose that station as a reference. If nobody has established its relevance, write “station relationship unconfirmed.” A short geographic distance does not supply that missing explanation. For example, suppose a fictional producer chooses a station because its name resembles the beach name on the brief. Another producer chooses a different station from a map. Preserve both references until the responsible person resolves the choice. Combining one station's time with another station's height creates an entry neither source supports. Keep the station link with the saved table. A cropped image can support a discussion, but it should not become the only record. If the original page cannot be recovered, identify the missing source in the brief. Do not fill the gap with a more convenient station without recording the change. ## Check what the station can provide NOAA distinguishes harmonic and subordinate prediction stations. Harmonic predictions use the station's harmonic constants. Subordinate predictions apply time and height adjustments to high and low predictions from a reference station. Subordinate stations provide high and low predictions relative to Mean Lower Low Water. [NOAA guide, types of stations](https://tidesandcurrents.noaa.gov/noaatidepredictionshelp.html). That distinction matters when the brief asks for conditions across a whole production window. A list of high and low events does not contain every intermediate reading. Do not manufacture a smooth series by drawing between two entries. If the needed information is absent, describe the absence rather than presenting an invented table. NOAA's product documentation separates the high/low interval from hourly and other supported prediction intervals. It restricts subordinate tide stations to high/low output. [CO-OPS documentation, Interval](https://api.tidesandcurrents.noaa.gov/api/prod/#interval). For a fictional 05:00 to 09:00 shoot window, save the table that contains the relevant events. Label its interval “high/low” if that is what you retrieved. If another producer requests a value at 07:15, check whether the chosen station supplies that interval. The answer can be “this table does not contain that value.” Avoid describing a subordinate station as defective because its output is limited. Record the product available and the question still unanswered. The production team can then decide what additional evidence it needs. ## Preserve datum and units as separate fields A vertical datum supplies a reference for elevations or depths. NOAA defines Mean Lower Low Water, abbreviated MLLW, using each tidal day's lower low water height. Those heights are averaged over the National Tidal Datum Epoch. It is a reference level, not the day's lowest predicted reading. [NOAA datum definitions, MLLW and geodetic datums, accessed 2026.10.28](https://tidesandcurrents.noaa.gov/datum_options.html). Keep the exact datum label beside the height. Keep the unit beside it as well. “0.4 feet relative to MLLW” is a different statement from “0.4 meters relative to MLLW.” Neither statement measures the depth at a photographer's proposed standing position. Consider a fictional comparison with two entries: 0.4 feet relative to MLLW and 0.4 feet relative to another datum. Matching numerals and units do not make these equivalent. The reference levels differ. The producer should obtain comparable source output before trying to calculate a difference. Do not invent a conversion between datums from an unlabeled chart. If the project needs a survey elevation, give that question to the responsible technical person. For a source-reading brief, the immediate task is more modest: preserve the labels and expose any mismatch. A negative predicted height also needs its reference label. It indicates a value below the selected reference, not a statement that a particular beach is dry. Write the signed value as provided. Avoid translating the number into an unsupported description of the scene. ## Read the time setting before moving a time into the brief NOAA offers LST, LST/LDT, and GMT. LST means local standard time without daylight-saving adjustment. LST/LDT applies the daylight-saving adjustment when appropriate. GMT means Greenwich Mean Time. [NOAA guide, time-zone controls](https://tidesandcurrents.noaa.gov/noaatidepredictionshelp.html). Copy the setting exactly. Avoid the label “local” by itself. In your own brief, state whether an entry is the source time or a converted production time. Keep both when the team needs a conversion. Include the calendar date on each side. The following is a hypothetical clock exercise, not a NOAA prediction. Assume a fictional location uses standard time five hours behind GMT. Assume its daylight time is four hours behind GMT. Also assume the example date falls during daylight time. | Display basis | Time for the same fictional event | Meaning in this example | | --- | --- | --- | | LST | 05:30 on July 15 | Standard-time display, GMT minus five hours | | LST/LDT | 06:30 on July 15 | Daylight-adjusted display, GMT minus four hours | | GMT | 10:30 on July 15 | Reference time used for this exercise | These entries describe one instant. If a producer copies 05:30 LST into a daylight-time brief as 05:30 local, the brief shifts the event by one hour. Preserve the original setting before making the conversion. Have a second person check the example against the destination clock convention. The example's offsets are assumptions, not rules for every coast. Do not reuse them for a real station without verification. Around midnight, a conversion can also change the calendar date. For example, under the same fictional daylight offset, 02:30 GMT corresponds to 22:30 on the previous day. Use a 24-hour clock in the working brief if that reduces ambiguity for your team. Retain the source's original display in the evidence copy. A format change should never silently change the time basis. ## Build a brief another producer can inspect Use one source record per station and prediction window. The following fields are a suggested production record, not a NOAA form. Leave unresolved fields visible instead of making the brief appear complete. | Field | What to retain | | --- | --- | | Source | NOAA page link and saved table reference | | Station | Displayed name, identifier, and station type | | Source capture | Date and time the producer retrieved the material | | Prediction window | First and last dates requested, with the displayed time basis | | Height reference | Exact datum label | | Units | Feet or meters as displayed | | Time basis | LST, LST/LDT, or GMT, plus clock display format | | Interval | High/low or the supported interval selected | | Production window | Requested shoot dates and times, separately labeled | | Relevance | Person responsible for the station choice and unresolved limitations | | Decision | Named owner, questions, and next review point | A capture date answers when the producer obtained the material. It does not establish when NOAA last changed the underlying station information. If the source does not supply a revision date, do not turn your retrieval date into one. For the screenshot example, the corrected entry might read: “Fictional station, low prediction, July 15, 06:30 LST/LDT, 0.4 feet relative to MLLW.” Mark it as a training example. A real brief would contain the actual station identifier, original source, and checked settings. Add a short question beside each uncertainty. “Confirm whether this station is relevant to the proposed location” is more useful than a generic “check tides.” Assign that question to a person who can resolve it before the production decision. ## Keep the station reading separate from the location decision A tide reference does not establish waves, currents, access, permits, or property permission at the shooting location. Treat each as a separate production question. NOAA specifically cautions that high or low tide does not reliably identify slack current at most locations. [NOAA FAQ, relationship between tides and tidal currents, accessed 2026.10.28](https://www.tidesandcurrents.noaa.gov/faq.html). Avoid writing “low tide means access is available” in the brief. Instead, record the predicted event and identify who must confirm access. The photographer's preferred composition belongs in the creative plan. It should not replace the evidence required by the people responsible for location and safety decisions. When new information arrives, preserve the earlier source copy and describe what changed. A station change, a corrected time basis, and a new production window are different revisions. Keeping them separate lets the next producer understand the decision without reconstructing the conversation. Use the companion guide on [predicted and observed tides](/articles/predicted-observed-tides-coastal-photography-backup-plan) when the task moves from reading settings to reviewing changing evidence. It explains how to document a comparable observation without treating it as a forecast for the shoot. ## Hand off a source record with a clear owner Before handing over the brief, ask the next producer to locate the original table. Have that person identify the station and explain the time basis. If either step fails, repair the source record before relying on the copied value. Record the decision owner separately from the person who gathered the table. The researcher can explain the source and its settings. The authorized production lead decides how the information affects the job after reviewing the other required evidence. Keep corrected examples in the studio's own reference folder. A recurring mistake, such as dropping the datum from a screenshot, can become a specific checklist item. The [business memory guide](/articles/business-memory-for-ai-agents-guide) describes how to retain those instructions with their source context. The [photographer intelligence overview](/intelligence/photographers) places public condition references beside other production research. Scale With Search can discuss the record and review process within a written scope. Describe the source handoff you need before choosing software. [Discuss the scope](/work) Continue the website review: [AI-native photographers: the first functions to build](/articles/ai-native-photography-first-functions); [Client photo proofing: make image selections unambiguous](/articles/photographer-client-proofing-selection-page); [Copied photography online: prepare removal evidence](/articles/photographer-copied-images-google-removal-evidence); [Build a corporate headshot quote page for your studio](/articles/photographer-corporate-headshot-quote-page); [Should photographers show a home address on Google?](/articles/photographer-home-address-google-business-profile); [Private client gallery on Google: what to check first](/articles/photographer-private-client-gallery-google); [Photography AI rules: data, approvals, and spend](/articles/photography-ai-rules-data-approvals-spend); [Photography gallery SEO: make the work discoverable](/articles/photography-gallery-seo-discovery-check); [Add image licensing details to a photography website](/articles/photography-image-licensing-metadata-website); [Photography mini session booking page checklist](/articles/photography-mini-session-booking-page-checklist); [Check a photography lightbox with a keyboard](/articles/photography-portfolio-lightbox-keyboard-check); [Photography pricing pages: session fees and image files](/articles/photography-pricing-page-session-fee-digital-files); [Photography website colors look washed out: what to check](/articles/photography-website-washed-out-colors); [Predicted and observed tides: prepare a coastal photography backup plan](/articles/predicted-observed-tides-coastal-photography-backup-plan). [photographers, event planners, and travel agents](/for/photographers): website and search resources. ## Related: photographers, event planners, and travel agents - [Client photo proofing: make image selections unambiguous](/articles/photographer-client-proofing-selection-page) - [Copied photography online: prepare removal evidence](/articles/photographer-copied-images-google-removal-evidence) - [Build a corporate headshot quote page for your studio](/articles/photographer-corporate-headshot-quote-page) ---- ```text .|########||. .|########||. .|########||. |##||. .||##|. |##||. .||##|. |##||. .||##|. |#|. .|#|. |#|. .|#|. |#|. .|#|. |#| |#| |#| |#| |#| |#| .#| |#. .#| |#. .#| |#. .#. .#| .#. .#| .#. .#| |#. .#| |#. .#| |#. .#| |# ...... #| |# ...... #| |# ...... #| .# ||#########| #| .# ||#########| #| .# ||#########| #| .#. |######||######|. .#. .#. |######||######|. .#. .#. |######||######|. .#. #. .##|###|##|#|######| .# #. .##|###|##|#|######| .# #. .##|###|##|#|######| .# || |##|#||||||||||||#||#| || || |##|#||||||||||||#||#| || || |##|#||||||||||||#||#| || # |#||||||||||||||||||||#| #. # |#||||||||||||||||||||#| #. # |#||||||||||||||||||||#| #. || |#||||||||||||||||||||||#| || || |#||||||||||||||||||||||#| || || |#||||||||||||||||||||||#| || # .#||||||||||||||||||||||||#| # # .#||||||||||||||||||||||||#| # # .#||||||||||||||||||||||||#| # || ....|||#||||||##|#|||#|#||##||||....|. || || ....|||#||||||##|#|||#|#||##||||....|. || || ....|||#||||||##|#|||#|#||##||||....|. || #. . ....|# ....#||| ||| .#||| ....#. .# #. . ....|# ....#||| ||| .#||| ....#. .# #. . ....|# ....#||| ||| .#||| ....#. .# # . ||||#| .#####|| . .#| .#||| ||||# #. # . ||||#| .#####|| . .#| .#||| ||||# #. # . ||||#| .#####|| . .#| .#||| ||||# #. .| ||||| #. |#|||||. || #. |#||. .||||| || .| ||||| #. |#|||||. || #. |#||. .||||| || .| ||||| #. |#|||||. || #. |#||. .||||| || || |.... #. ....|#. |. ...|. ....|| || || |.... #. ....|#. |. ...|. ....|| || || |.... #. ....|#. |. ...|. ....|| || #. .||||||##||||||##||####|||||||#||||||#| .# #. .||||||##||||||##||####|||||||#||||||#| .# #. .||||||##||||||##||####|||||||#||||||#| .# # .||####|###########################|. # # .||####|###########################|. # # .||####|###########################|. # # .#||||||.#.|| # |. ..# #| #|||||#| # # .#||||||.#.|| # |. ..# #| #|||||#| # # .#||||||.#.|| # |. ..# #| #|||||#| # # .#|||||| .. |# ## |#| ...#|#|||#| # # .#|||||| .. |# ## |#| ...#|#|||#| # # .#|||||| .. |# ## |#| ...#|#|||#| # # .#|||#|# .# .#| #| ##|.#..#|||||#| # # .#|||#|# .# .#| #| ##|.#..#|||||#| # # .#|||#|# .# .#| #| ##|.#..#|||||#| # # .#||||||############|######|||||#| # # .#||||||############|######|||||#| # # .#||||||############|######|||||#| # # |...||#||||||#||||#|#||||||#|||||#||| |.| # # |...||#||||||#||||#|#||||||#|||||#||| |.| # # |...||#||||||#||||#|#||||||#|||||#||| |.| # #. .. ||||# .|||##|. |#| .|| || .|||#. #| # .# #. .. ||||# .|||##|. |#| .|| || .|||#. #| # .# #. .. ||||# .|||##|. |#| .|| || .|||#. #| # .# || | ...|| ...##| | #| .|. |. ##### .. .| || || | ...|| ...##| | #| .|. |. ##### .. .| || || | ...|| ...##| | #| .|. |. ##### .. .| || || ||||| || ||||#| . |. |. |#. ||||| |#| || || || ||||| || ||||#| . |. |. |#. ||||| |#| || || || ||||| || ||||#| . |. |. |#. ||||| |#| || || .# |.....#|....|#.||||.|||##.|#|....||.#||.#. #. .# |.....#|....|#.||||.|||##.|#|....||.#||.#. #. .# |.....#|....|#.||||.|||##.|#|....||.#||.#. #. #.|||||||#############################| ||| .# #.|||||||#############################| ||| .# #.|||||||#############################| ||| .# || ##||#||#||||||#||#||#||#||##. || || ##||#||#||||||#||#||#||#||##. || || ##||#||#||||||#||#||#||#||##. || # .#|||||||||#||#|||||||||||#| # # .#|||||||||#||#|||||||||||#| # # .#|||||||||#||#|||||||||||#| # || |#||||||||||||||||||||||#| || || |#||||||||||||||||||||||#| || || |#||||||||||||||||||||||#| || .# |#||||||||||||||||||||#| #. .# |#||||||||||||||||||||#| #. .# |#||||||||||||||||||||#| #. || |#||||||||||||||||||#| || || |#||||||||||||||||||#| || || |#||||||||||||||||||#| || #. .######|#|#########| .# #. .######|#|#########| .# #. .######|#|#########| .# .#. |#####||||#####| .#. .#. |#####||||#####| .#. .#. |#####||||#####| .#. |# ||########|| #. |# ||########|| #. |# ||########|| #. |# ...... #| |# ...... #| |# ...... #| |#. .#| |#. .#| |#. .#| |#. .#. |#. .#. |#. .#. .#| |#. .#| |#. .#| |#. |#| |#| |#| |#| |#| |#| .|#|. .|#|. .|#|. .|#|. .|#|. .|#|. |##||. .||##| |##||. .||##| |##||. .||##| .||########||. .||########||. .||########||. 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