Nexus StandardsMaster subsiteHazards
3 areas · /early-warning/

Early Warning and Anticipatory Action

A warning helps only if it reaches people with time to act and if the action it triggers was agreed in advance. This subsite relates alerting protocols, hydrometeorological services and anticipatory-action triggers so that a forecast, a message and a release of funds can be traced to one another. Every artifact of these areas carries a UNI (Unique Nexus Identifier), which identifies and never certifies.

Open the area index See the coupling map
In this subsite10 sections
  1. 01Context mapAn example geography for this subsite.
  2. 02Area index3 areas in Early Warning and Anticipatory Action.
  3. 03Live feeds11 sources named by the areas, every one honest about…
  4. 04Coupling mapEarly Warning and Anticipatory Action among the other…
  5. 05Indicators6 indicators the areas track.
  6. 06Standards that apply5 Nexus Standards across 3 areas.
  7. 07ReadinessWhat GCRI Canada and the two institutions read here.
  8. 08Working groups3 working-group charters proposed, none chartered yet.
Areas
3
0 with a registry row
Nexus Standards
5
listed by the areas
Open standards
11
named and linked, never reproduced
Feeds
11
0 admitted · the rest pending
UNI
requested · not yet allocated
Status
PROPOSEDsubsite created · awaiting go
Last reviewed
area context bank
Cite this page

Nexus Standards (2026). Early Warning and Anticipatory Action: master subsite of the Nexus Standards (PROPOSED areas). https://nexustandards.com/early-warning/. Last reviewed 2026-10-17.

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01Context map

An example geography for this subsite.

Open Earth observation layers framed on southeast asia, as an example geography for early warning and anticipatory action: context for where its records live, never an assessment and never a statement of where the standards apply. Layers, dates and credits are on the map.

The interactive map needs JavaScript; the layer list and sources are below.

Layers 3

Hazards now

Latest available

NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap contributors (ODbL) · Natural Earth

Loading the latest NASA imagery.

Drag to move. Ctrl or ⌘ and scroll, pinch or the buttons to zoom; hover for the values under the pointer; reset returns to the region.

Flood water, active fires, heavy rain and smoke, beside where people live, framed on Southeast Asia.Satellite and model products as NASA publishes them, each with its own date; indicators, not assessments of any place; claim ceiling INTEGRATED.

Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural Earth · NASA EONET · GDACS · USGSSources and licences

  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • VIIRS near-real-time products (flood, land surface temperature, snow cover, corrected reflectance), NASA LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • NASA Fire Information for Resource Management System (FIRMS), VIIRS 375 m active fire product, NASA LANCE; vector tiles via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • GPM IMERG precipitation, NASA Precipitation Processing System; distributed by the NASA Goddard Earth Sciences Data and Information Services Center (GES DISC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • MODIS and VIIRS atmosphere products, NASA LANCE and LAADS DAAC; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Center for International Earth Science Information Network (CIESIN), Columbia University. 2018. Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11. NASA Socioeconomic Data and Applications Center (SEDAC). Licensed under CC BY 4.0. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). CC BY 4.0
  • ASTER GDEM is a product of METI and NASA (ASTER Global Digital Elevation Model V003, NASA LP DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Public domain
  • © OpenStreetMap contributors (ODbL), via NASA GIBS (coastlines, boundaries, roads and place names). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). ODbL
  • Blue Marble, NASA Earth Observatory; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Context on the globe and flat map: coastlines, boundaries, roads and place names from NASA GIBS reference layers (OpenStreetMap data, ODbL, © OpenStreetMap contributors); Blue Marble imagery as an optional base; 3D terrain and the elevation read-out from the ASTER GDEM elevation colour index (5 m to 200 m classes, exaggerated for legibility). Boundaries are drawn as published and imply no position on any territory.
  • Globe: MapLibre GL JS 6.9.1, BSD-3-Clause, © MapLibre contributors.
  • Live: NASA EONET Events are indicative, not official warnings.
  • Live: GDACS (EC JRC / UN OCHA) Events are indicative, not official warnings.
  • Live: USGS Events are indicative, not official warnings.
  • Optional layers (35 sources in the layer list: live, forecast, observed and context) print their provider credit on the map and here when switched on; forecasts are model output and derived indices are estimates.

Layers and dates

  • Flood water, 3-day composite: VIIRS Global Flood Product, NASA LANCE · 14 Oct 2026
  • Active fires and thermal anomalies, last day: VIIRS NOAA-20 375 m (FIRMS), NASA LANCE FIRMS · 13 Oct 2026
  • Precipitation rate, daily mean: GPM IMERG, NASA GES DISC · 12 Oct 2026
  • Aerosol optical depth, daily: VIIRS NOAA-20 Deep Blue AOD, NASA LANCE · 13 Oct 2026
  • Population density, 2020: Population: CIESIN, Columbia University, Gridded Population of the World v4.11 (2018), NASA SEDAC, CC BY 4.0 · static

02Area index

3 areas in Early Warning and Anticipatory Action.

Every area of the subsite with its tier, status, the Nexus Standards it lists, the open standards it names, its feeds and its couplings. Area entries are PROPOSED; registry rows are named where they exist.

Area index · Early Warning and Anticipatory ActionFrom the context bank
  1. 01Early warning and anticipatory actionRisk disciplinesStatusproposedNexus StandardsNS-0 · NS-3 · NS-9 · NS-10 · NS-11Open standards5Feeds5 0 admittedCouplings4
  2. 02Alerting and messagingCross-cutting capabilitiesStatusproposedNexus StandardsNS-10 · NS-11 · NS-3 · NS-9Open standards5Feeds3 0 admittedCouplings3
  3. 03WMO and hydrometeorological servicesMultilateral and institutional technical areasStatusproposedNexus StandardsNS-3 · NS-9 · NS-11Open standards5Feeds3 0 admittedCouplings4

Area index0 of 3 areas have a registry row; the rest are proposed areas with a full context entry and no registry row yet. Feed counts include sources pending admission.

03Live feeds

11 sources named by the areas, every one honest about admission.

Provider, licence, delivery path and register status for each source. A source is live on a public page only after an owner decision admits it; until then it reads pending admission.

Every feed · pending admission

No legal register row admits any of these sources for live display on public pages yet, so nothing is read from them here. A register row that exists records the source for the governed GRIx path; admission for public pages is a separate owner decision.

Admitted
0
none yet
Register row exists
10
recorded for the GRIx path
Proposed row
1
terms to be recorded
Delivery
9 GRIx · 0 plugin · 0 browser · 2 snapshot
GRIx first, then plugin, browser-direct, snapshot
04Coupling map

Early Warning and Anticipatory Action among the other subsites.

30 coupling rows join this subsite's areas to 10 other subsites, counted from the systemicContext rows of the area context bank in both directions. Select a card on the canvas to trace it.

Canvas · couplings with the other subsitesDesign, not a record
Early Warning and Anticipatory Action: couplings with the other subsitesSubsites whose areas record a coupling into Early Warning and Anticipatory Action, the areas of Early Warning and Anticipatory Action with the highest coupling counts, and the subsites its areas couple out to, counted from the systemicContext rows of the area context bank (PROPOSED). A reading aid, not a dependency proof.

Fig.Edge labels count coupling rows. GATE marks a subsite, DONE and RUNNING an area of this subsite. Tags give reading order only. Design, not a record.

Coupled subsiteRowsExample mechanism
Hazards and Disaster Risk Reduction7Mechanism: ensemble forecasts feed triggers; verification statistics determine trigger reliability.Hydrometeorological hazard standards to Early warning and anticipatory action
Finance, Insurance and the Economy4Mechanism: pre-arranged finance releases on trigger activation.Early warning and anticipatory action to Disaster and climate risk finance
Humanitarian Action and Development4Anticipatory action triggers and protocols are recorded in the Early Warning and Anticipatory Action subsite; Grand Bargain anticipatory commitments are tagged to them here.Humanitarian standards alignment to Early warning and anticipatory action
Communities, Learning and Contribution3CAP info blocks per language follow the translation rules; translations are informative and carry translator and date.Alerting and messaging to Translation and localisation
Water and Food Systems3Mechanism: food security triggers drive anticipatory action.Food security and nutrition risk to Early warning and anticipatory action
Data and Evidence2CAP candidates travel as notifications on the WIS2-style topic hierarchy pointing at the resolver, never as the full record.Alerting and messaging to Real-time and streaming data
Digital, Cyber and AI2ITU-T X.1303 bis specifies CAP 1.2; the alerting area profiles CAP once, citing both OASIS and ITU-T publications.ITU and digital connectivity to Alerting and messaging
Governance, Security and Society2Feedback: trust in warnings depends on past false-alarm rates and source authenticity.Early warning and anticipatory action to Information integrity and trust
05Indicators

6 indicators the areas track.

SDG global indicator framework13.1.1Number of deaths, missing persons and directly affected persons attributed to disasters per 100,000 populationSendai Framework MonitorG-1Number of countries that have multi-hazard early warning systemsSendai Framework MonitorG-2Number of countries that have multi-hazard monitoring and forecasting systemsSendai Framework MonitorG-3Number of people per 100,000 covered by early warning information through local governments or national dissemination mechanismsSendai Framework MonitorG-4Percentage of local governments having a plan to act on early warningsSendai Framework MonitorG-5Number of countries with accessible, understandable, usable and relevant disaster risk information and assessment

Indicator names and codes as their stewards publish them; values appear only from a governed GRIx source, never typed into a page.

06Standards that apply

5 Nexus Standards across 3 areas.

Standards that apply · Nexus Standards across, areas downFrom the registry
AreaNS-0NS-3NS-9NS-10NS-11Listed
Early warning and anticipatory actionproposed5
Alerting and messagingproposed4
WMO and hydrometeorological servicesproposed3
Listed, standard proposedListed, standard specified or openNot listedPROPOSED, SPECIFIED, OPEN, PLANNED and WIRED are registry words; none certifies conformance, readiness or equivalence.
12 listed of 15 pairs across 3 areas and 5 standards, from the area context bank (PROPOSED) and standards/INDEX.md.

Standards that applyA filled cell means the area's context entry lists that Nexus Standard. Context entries are PROPOSED; no cell is a conformance, certification or readiness statement.

07Readiness

What GCRI Canada and the two institutions read here.

GCRI Canada evidence pathway

GCRI Canada

Early warning and anticipatory action · GCRI Canada may admit trigger and activation records with verification statistics as research evidence on anticipatory action; GCRI Canada decides under its own evidence and research rules, and no approval is implied.

Alerting and messaging · GCRI Canada analyses warning performance only from CAP records whose sender, identifier and status can be verified.

WMO and hydrometeorological services · GCRI Canada decides under its own evidence rules whether hydromet-derived records are usable; describing WMO systems is not acceptance.

Open the GCRI Canada evidence pathway

Recognition pathway

The Global Risks Forum (GRF)

Early warning and anticipatory action · GRF may record agencies publishing warnings and triggers on the shared profiles as part of the Early Warnings for All dialogue; GRF decides under its own recognition rules, and no recognition or endorsement is implied.

Alerting and messaging · GRF recognises early-warning contributions that hand candidates to the competent authority, not those that issue warnings themselves.

WMO and hydrometeorological services · The Global Risks Forum (GRF) decides under its own rules how early-warning work features in its programmes; this section implies no recognition.

Open the Recognition pathway

Capital pathway

The Global Risks Alliance (GRA)

Early warning and anticipatory action · GRA may read trigger skill and activation records when it considers pre-arranged finance; GRA decides under its own capital-readiness rules, and no approval, rating or investment view is implied.

Alerting and messaging · GRA links parametric triggers to official alert records only through the authority's published messages.

WMO and hydrometeorological services · The Global Risks Alliance (GRA) decides capital readiness under its own criteria; warning-coverage records only inform its reviewers' view of preparedness.

Open the Capital pathway

Each institution decides under its own rules what it reads as evidence; no pathway is an approval, a readiness statement or investment advice.

08Working groups

3 working-group charters proposed, none chartered yet.

Each area proposes a working group with a scope, deliverables and liaison targets; a liaison is sought, never claimed, until the body confirms it in writing.

AreaWorking group scopeDeliverablesLiaison sought
Early warning and anticipatory actionWarning, trigger and activation records with verification, on CAP and WIS 2.0.34WMO, IFRC Anticipation Hub, OCHA anticipatory action team, ITU
Alerting and messagingCAP profile, alert integrity clauses and authority handoff.34OASIS Emergency Management Technical Committee, WMO, ITU-D, IFRC
WMO and hydrometeorological servicesDescribe WMO's systems accurately and build open CAP and WIS 2.0 consumer profiles and test suites that national services could reuse.33WMO (category C information exchange sought; none recorded), OASIS Emergency Management Technical Committee…
09Contribute

Help build Early Warning and Anticipatory Action.

  1. 01

    Charter a working group

    Pick an area above, adopt its proposed charter and file it as a docket under NS-13; editors decide with written reasons. Develop a standard

  2. 02

    Correct or extend an area brief

    Every area entry is PROPOSED: a pull request against the area context bank names the change and its source, peer-reviewed or published statistics.

  3. 03

    Name a source

    Propose a feed with provider, licence and delivery path; Legal/IP records the terms and the owner decides admission. Agents never admit a source.

  4. 04

    Take part at the body

    Contribute to an external standard through its own body's channels; the outcome comes back here as a register change. Movement and contribution

10References

10 sourced references across the areas.

Peer-reviewed sources and published statistics as the area entries cite them, newest first within each type.

  1. peer-reviewedForecast-based financing: an approach for catalyzing humanitarian action based on extreme weather and climate forecastsNatural Hazards and Earth System Sciences · 2015
  2. peer-reviewedThe monetary benefit of early flood warnings in EuropeEnvironmental Science & Policy · 2015
  3. peer-reviewedThe quiet revolution of numerical weather predictionNature · 2015
  4. peer-reviewedGloFAS - global ensemble streamflow forecasting and flood early warningHydrology and Earth System Sciences · 2013
  5. peer-reviewedCommunication of emergency public warnings: A social science perspective and state-of-the-art assessmentOak Ridge National Laboratory (OSTI) · 1990
  6. published statisticsEarly Warnings for AllWorld Meteorological Organization · 2023
  7. published statisticsEarly Warnings for AllWMO · 2022
  8. published statisticsWMO Unified Data Policy Resolution (Res. 1, Cg-Ext(2021))World Meteorological Organization · 2021
  9. standardCommon Alerting Protocol Version 1.2OASIS · 2010
  10. standardCommon Alerting Protocol Version 1.2OASIS Open · 2010
11Risk standards and library

4 risk standards and the library.

The Nexus Risk Standards read in Early Warning and Anticipatory Action and its library: scope, codes, schemas, conformance, governance, templates, crosswalks, change log and how to contribute.

4 standards

Risk standards

C, I and K

Library

Scope and taxonomy

Library

Codes and identifiers

Library

Schemas and data models

Library

Conformance and profiles

Library

Policy and governance

Library

Templates and implementation guides

Library

Crosswalks to external frameworks

Library

Change log and versioning

Library

How to contribute

12Learn and apply

Where Early Warning and Anticipatory Action is taught, worked on and run.

Risk Academy disciplines that teach Early Warning and Anticipatory Action, with their courses; the GCRI Canada, The Global Risks Forum (GRF) and The Global Risks Alliance (GRA) subsites that carry those disciplines; and the Nexus Foundry systems the standards name. Mappings are proposed for review (Risk Academy standards map, 2026-10-17); a link says a page on the same subject exists, never an endorsement or a conformance statement; framework names in course titles are named and linked, never reproduced.

Risk Academy

Disciplines and courses

13Questions

Questions and answers.

Is Early Warning and Anticipatory Action a live subsite?
The owner created it in WordPress; its pages publish as drafts once the owner gives the go. The name is owner-confirmed.
Where do the areas come from?
From the area context bank, one PROPOSED entry per area written as an expert would brief a working group, sourced to published statistics and peer-reviewed references; the Nexus Standards lane owns the canonical registry.
Are any feeds live here?
No. Every feed reads pending admission until an owner decision admits it for public pages.
Nexus Standards

Build Early Warning and Anticipatory Action with us.

Charter a working group, correct a brief or name a source. Area entries are PROPOSED content for the Nexus Standards registry; a UNI identifies and never certifies, and nothing on this site is a certification, an approval or a readiness statement.

Propose a change All twenty subsites

Nexus Standards documents CC BY 4.0 · tooling Apache-2.0 · counsel review pending (DEC-2026-10-16-NEXUS-STANDARDS-OPEN-LICENCE). External standards are named and linked under their own licences; a UNI (Unique Nexus Identifier) identifies, it never certifies. · Generated from the Nexus Standards corpus at commit 437ae044c5cb (2026-10-17); proposed and open.

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