SKYWARN Explained: NWS's Official Volunteer Spotter Program

SKYWARN is a National Oceanic and Atmospheric Administration (NOAA) National Weather Service (NWS) program that was formally established in the late 1960s (NWSI 10-1807), built on a nationwide network of trained volunteer spotters who report hazardous weather to help forecasters make warning decisions. The program’s rules, training scope, and internal procedures are set out in NWS Instruction 10-1807, dated August 17, 2022, which superseded an earlier September 28, 2017 edition of the same directive. The public-facing weather.gov/skywarn/ page describes the same program for a general audience — and states a different current spotter count than the governing instruction does. Both are official NWS sources; this article presents that difference rather than declaring one correct.

This original record-reading guide is a general reading aid, not cited evidence. It does not depict a source record; the article text and source links provide the facts.

Key points

• SKYWARN is described in the governing NWS instruction as “a National Oceanic and Atmospheric Administration’s (NOAA’s) National Weather Service (NWS) program that was formally established in the late 1960s.” (NWSI 10-1807)
• Its volunteer spotters are drawn from groups including amateur radio operators, emergency management and public safety officials, cooperative network (COOP) observers, and Community Collaborative Rain, Hail and Snow Network (CoCoRaHS) observers. (NWSI 10-1807)
• The directive defines an “Integrated Warning Team” as a local or state-level partnership of emergency management, broadcast media, and the NWS working toward a shared warning-improvement goal. (NWSI 10-1807)
• The instruction contains a dedicated section, “2.5 Reporting of False Spotter Reports,” addressing false reports from spotters. (NWSI 10-1807)
• The 2022 instruction states “over 300,000” trained volunteer spotters, while the current public weather.gov/skywarn/ page states “between 350,000 and 400,000” — two different figures from two official NWS sources describing the same program. (NWSI 10-1807; weather.gov/skywarn/)

The governing instruction

The directive that defines SKYWARN internally is titled, in full:

“NATIONAL WEATHER SERVICE INSTRUCTION 10-1807 AUGUST 17, 2022 Operations and Services Service Outreach NWSPD 10-18 THE SKYWARN® WEATHER SPOTTER PROGRAM” (NWSI 10-1807)

This is not the first version of the rule. The instruction itself states:

“This directive supersedes NWSI 10-1807, The SKYWARN Weather Spotter Program, dated September 28, 2017.” (NWSI 10-1807)

This article cites the August 17, 2022 edition — the version published at the directive’s official URL and referenced throughout — which the instruction’s own text states superseded the September 28, 2017 edition. This article does not independently verify whether a still-newer edition has since been issued.

Official program definition

The instruction gives this description of the program itself:

“SKYWARN® (https://www.weather.gov/skywarn/) is a National Oceanic and Atmospheric Administration’s (NOAA’s) National Weather Service (NWS) program that was formally established in the late 1960s. It consists of over 300,000 trained volunteer spotters who provide reports of weather and flooding to help meteorologists and hydrologists make life-saving warning decisions.” (NWSI 10-1807)

Spotter volunteer pool

The instruction identifies the pool that spotters are drawn from:

“Spotters are trained volunteers who provide timely reports of hazardous weather events that impact their communities (e.g., amateur radio operators, emergency management and public safety officials, cooperative network (COOP) observers, Community Collaborative Rain, Hail and Snow Network (CoCoRaHs) observers, and other interested individuals).” (NWSI 10-1807)

Integrated Warning Team defined

The instruction ties spotter reporting to a broader partnership structure it calls an Integrated Warning Team, defining it as:

“the situational awareness of the entire Integrated Warning Team— defined as ‘a local or state-level team that consists of emergency management, broadcast media core partners, and the NWS – a team that shares the common goal and responsibility of improving the warning system and reducing fatalities, injuries and property damage due to natural hazards.’” (NWSI 10-1807)

False spotter report section

The instruction includes a numbered section specifically on this topic, titled:

“2.5 Reporting of False Spotter Reports” (NWSI 10-1807)

This article does not reproduce the section’s procedural content — only the fact that the governing directive treats false spotter reports as a distinct, named topic.

Two official counts of trained spotters

The governing 2022 instruction states the program “consists of over 300,000 trained volunteer spotters” (NWSI 10-1807). The public weather.gov/skywarn/ page, describing the same program, currently states:

“SKYWARN® is a volunteer program with between 350,000 and 400,000 trained severe weather spotters.” (weather.gov/skywarn/)

Both statements come from official NWS sources describing the same nationwide program, and they give different figures. This article does not attempt to determine which count is more current or more accurate — it records both as they appear in their respective official sources.

Outside this article’s scope

This article draws only on the text of NWS Instruction 10-1807 and the public weather.gov/skywarn/ page, and it deliberately stops short of several things. It does not say which of the two spotter counts above is the current or correct one — both are official figures from different documents, and reconciling them is outside what these two sources settle. It does not explain how to enroll in a local SKYWARN spotter class or training session; readers seeking that information should consult their local NWS forecast office directly. It does not reproduce any of the directive’s spotter-safety, storm-observation, or hazard-assessment guidance as advice to follow. And it does not assign a publication date to the weather.gov/skywarn/ public page, which carries no date of its own.

Source links

https://www.weather.gov/media/directives/010_pdfs/pd01018007curr.pdf https://www.weather.gov/skywarn/