Severe Weather Map

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Severe Weather Map

Quick presets

Map

Basemap

Weather overlay

Active layer

Opacity 72%

Animation

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0/0

Smooth preloadBuffers the full visible loop; Quick mode starts sooner.

Map and warning layers

NWS alert polygonsOfficial active watches, warnings and advisories.

Tornado indicatorsHighlights official radar-indicated/observed tornado wording and “tornado possible” warnings.

SPC mesoscale discussionsShort-term forecaster analysis, often focused on the next 1–3 hours.

Storm reportsRecent tornado, hail, wind, flood and winter reports.

Projected storm tracksDraws the next ~60 min path for warnings that report storm motion.

State bordersBold orientation lines.

County bordersLoads only when enabled; shown at closer zoom.

City labelsMore towns appear automatically as you zoom in.

Compare (swipe)

Side-by-side compareDrag the divider to wipe between the active layer and a second one.

Right-side layer

Picking a layer switches compare on automatically. Best with image layers (radar, satellite, forecast fields).

Severe-weather ingredients

Live CAPE, shear and helicity fields from the authoritative SPC Mesoanalysis (opens in a new tab — these aren't available as free in-map tiles).

Alert notifications

Sound for new serious alertsOnly alerts intersecting an enabled watch area.

Desktop notificationsYour browser may require permission and may restrict this on file:// pages.

Watch areas

Name

Radius (miles)

Quick actions

Find a place (city, ZIP or address)

Tap “Click for forecast”, then tap the map — or search a place above.