SHORT-FUSE GUIDANCE

Mesoscale discussions.

The 30-to-90-minute heads-up before watches and warnings exist. This is where severe weather days escalate.
ACTIVE NOW

Current discussions and watches

If a box covers your area on the left map, SPC is actively evaluating it. The right map shows watches already in effect.

Active Mesoscale Discussions

Active Mesoscale Discussions

Active Severe Weather Watches

Active Severe Weather Watches
THE ESCALATION LADDER

Outlook → discussion → watch → warning

Severe weather information arrives in four steps. The outlook (days ahead) says storms are possible. A mesoscale discussion (an hour or two ahead) says SPC is watching a specific area harden. A watch (hours) says organized severe storms are expected — stay reachable. A warning (minutes) says it is happening — act now.

Most people only ever hear the warning. Reading mesoscale discussions puts you one full step ahead of your neighbors — and two ahead of the ones who ignore the watch. Wire your own county in at My Weather.

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Registration is free. Members get personalized feeds by zip code or coordinates as they come online.