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Welcome to LMKwhen

LMKwhen is a weather alerting platform that monitors your locations against official NWS watches and warnings, SPC severe weather outlooks, and NDFD gridded forecasts — and notifies you via SMS, email, or Slack the moment conditions match your thresholds.

Who is LMKwhen for?​

  • Property managers — monitor multiple properties for severe weather, freeze events, or high winds that could affect tenants or maintenance schedules
  • Contractors — get advance notice of conditions that could stop work (wind gusts, lightning risk, heat stress)
  • Weather enthusiasts — build custom alert rules across forecast products and get notified on your terms

How it works​

  1. Add locations — search by address or drop a pin on the map
  2. Set alert rules — choose from NWS alerts, SPC outlooks, or NDFD forecast thresholds
  3. Receive notifications — via SMS, email, or Slack when conditions match

Next steps​