46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
let alerts = msg.payload.features
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// Filter for Severe Thunderstorm Warnings
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let ts = alerts.filter(function(alert) {
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if (alert.properties &&
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alert.properties.event === "Severe Thunderstorm Warning") {
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return true
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}
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})
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// Filter for Severe Thunderstorm Warnings with tornado detection
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// that have a tornado possible parameter
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let tstp = alerts.filter(function(alert) {
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if (alert.properties &&
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alert.properties.event === "Severe Thunderstorm Warning" &&
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alert.properties.parameters &&
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alert.properties.parameters.tornadoDetection &&
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alert.properties.parameters.tornadoDetection.length > 0) {
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let tornadoPossible = alert.properties.parameters.tornadoDetection[0]
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return tornadoPossible === "POSSIBLE"
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}
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})
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// Filter for Tornado Warnings
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let tornado = alerts.filter(function(alert) {
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if (alert.properties &&
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alert.properties.event === "Tornado Warning") {
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return true
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}
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})
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// If there are any alerts, return them
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msg.ts = ts
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msg.ts_count = ts.length
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msg.tstp = tstp
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msg.tstp_count = tstp.length
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msg.tornado = tornado
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msg.tornado_count = tornado.length
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return msg |