Red Alerts

Raspberry Pi Weather Radio

Bringing Tornado Warnings

To Alarm Systems

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Jim Scarborough

@ke4roh

@ke4roh

@ke4roh

@ke4roh

Flickr user caesararum

@ke4roh

@ke4roh

Agenda

• NWS Data
• Implementation
• Quality Assurance
• Market Considerations

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@ke4roh

@ke4roh

@ke4roh

SAME

-WXR-TOR-037051-037085-037093-037163+0030-0532204-KRAH/NWS-

-WXR-TOR-037051-037085-037093-037163+0030-0532204-KRAH/NWS-

-WXR-TOR-037051-037085-037093-037163+0030-0532204-KRAH/NWS-

​

-W⨀R-RWT-0⨀7001-03⨀037-037⨀63-0370⨀9-03707⨀-037085⨀037101-⨀37105-0⨀7125-03⨀135-037⨀45-0371⨀1-03718⨀-037183⨀037185+⨀600-118⨀503-KRA⨀/NWS-⨀⨀⨀ỶỂ␝Iỹ

@ke4roh

NWS Text Header

922�WFUS52 KRAH 242204�TORRAH�NCC051-085-093-163-242230-�/O.NEW.KRAH.TO.W.0014.160224T2204Z-160224T2230Z/��BULLETIN - EAS ACTIVATION REQUESTED�TORNADO WARNING�NATIONAL WEATHER SERVICE RALEIGH NC�504 PM EST WED FEB 24 2016�

UGC

VTEC

@ke4roh

NWS Text Footer

&&��LAT...LON 3484 7935 3488 7934 3552 7871 3545 7862� 3531 7854 3526 7849 3526 7838 3515 7824� 3485 7863 3485 7883 3483 7890 3490 7894� 3495 7904 3483 7919�TIME...MOT...LOC 2203Z 220DEG 56KT 3475 7913��$$��VINCENT�

@ke4roh

NWS Data Channels

• https://alerts.weather.gov - ATOM + CAP ~90 second delay
• https://www.weather.gov - text, quick
• EMWIN over internet - instant, 1Mbps, not direct from NWS
• EMWIN via satellite - instant, direct, $$$
• https://www.google.org/publicalerts - Push, need to check delay

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• Station List, county coverage, frequency

@ke4roh

@ke4roh

Implementation

@ke4roh

@ke4roh

@ke4roh

@ke4roh

Quality Assurance

@ke4roh

Types of tests (for this project)

@ke4roh

@ke4roh

@ke4roh

@ke4roh

Market Considerations

@ke4roh

Who needs this?

• Big box stores
• Big offices
• Schools, day cares
• DOD, USPS…
• Alarm companies

@ke4roh

@ke4roh

Certifications for Alarm Systems

• NFPA 72
• UL 2572

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@ke4roh

https://github.com/ke4roh/RPiNWR

@ke4roh