Meteorology · Ship Routing · Observation
Radar

Radar

Ground-based scanning — precipitation mosaics, NEXRAD products, the storm-reports ledger, plus the lightning, fire, and aviation tools that pair with active weather. Satellite imagery is on its own page.

NWS National Radar

NOAA · Live national mosaic

National radar composite from 160+ NEXRAD sites, updated every 5 minutes, with storm-based warnings overlaid.

5-minute update Launch radar →

MRMS Composite

NSSL · Research-grade

NSSL's mosaic that blends NEXRAD with satellite, lightning, and surface observations — higher resolution than NWS radar.

2-minute update Launch MRMS →

College of DuPage NEXLAB

Academic · Educational

The academic radar viewer forecasters cut their teeth on — individual sites, mosaics, legacy display, every product.

Today's Storm Reports

SPC · Live storm reports

Preliminary storm reports from SPC — tornado touchdowns, hail, wind damage as they're called in.

Rolling daily Launch reports →

LightningMaps

Academic · Blitzortung network

Real-time global lightning from the Blitzortung volunteer network — 1,000+ stations, updated in under 30 seconds.

Sub-minute update Launch LightningMaps →

GOES GLM

NOAA · Geostationary Lightning Mapper

Real-time lightning flashes detected from space by GOES, overlaid on visible and IR imagery for CONUS and the ocean basins.

Continuous Launch GLM →

HRRR Smoke

NOAA ESRL · High-resolution smoke model

HRRR model with fire-and-smoke component — transport, surface concentrations, and optical depth to 48 hours at 3 km.

Hourly runs Launch HRRR Smoke →

NIFC Active Fires

NIFC · Interagency fire center

National Interagency Fire Center's operational portal — active fires, perimeters, evacuations, fire-weather outlooks.

Daily updates Launch NIFC →

AirNow

EPA + NOAA · Air quality index

Real-time US air quality — PM2.5, ozone, AQI by location, plus plume forecasts during fire events. EPA + NOAA.

NWS Fire Weather

NOAA NWS · Red Flag, spot forecasts

NWS fire-weather portal — Red Flag Warnings, Fire Weather Watches, spot forecasts, and fuel moisture conditions.

Aviation Weather Center

NOAA AWC · Operational aviation hub

NOAA's Aviation Weather Center — radar, satellite, METARs, TAFs, prog charts, turbulence, icing, and PIREPs in one map.

Continuous Launch AWC →

G-AIRMETs

NOAA AWC · Graphical AIRMETs

Graphical AIRMETs — moderate icing, turbulence, IFR ceilings, mountain obscuration, and surface winds.

Every 6 hours Launch G-AIRMETs →

SIGMETs

NOAA AWC · Significant meteorological info

SIGMETs — severe turbulence, severe icing, volcanic ash, widespread dust, and thunderstorms. The advisory that reroutes flights.

As warranted Launch SIGMETs →

Turbulence Forecast

NOAA AWC · GTG graphical

Graphical Turbulence Guidance — 3D forecasts of clear-air, mountain-wave, and convective turbulence to 45,000 ft.

Radar products from the National Weather Service, NOAA National Severe Storms Lab, the Storm Prediction Center, and College of DuPage (academic). Lightning from Blitzortung (crowd-sourced) and NOAA GOES GLM. Fire and air-quality data from the NOAA Earth System Research Lab, National Interagency Fire Center, EPA, and NWS Fire Weather. Aviation weather from NOAA's Aviation Weather Center. Geostationary sector imagery and research-grade satellite tools live on the Satellites page.