The Bridge

Real-time rainfall accumulation across CONUS at high resolution — 1, 3, 6, 24-hour, and multi-day blends.

Weather Prediction Center forecasts for 6hr through 168hr (7-day) precipitation totals.

Community Collaborative Rain, Hail & Snow — 20,000+ volunteers reporting daily rainfall measurements.

Operational portal for river forecasts, flood guidance, and watershed hydrology — replaced AHPS in 2024.

Daily snow depth, snow water equivalent, and snowfall analyses across CONUS — satellite + ground blend.

Weather Prediction Center's winter desk — probabilistic snow, freezing rain, and ice forecasts to 72 hours.

The authoritative US drought map — weekly D0–D4 categorical severity at county resolution.

NOAA's official climate data archive — station-level temperature, precipitation, and wind back to 1750.

Every recorded tornado, severe storm, hurricane, and flood back to 1950 — searchable by event and location.

Iowa Environmental Mesonet — surface observations and the full NWS text-product archive going back decades.

ERA5 reanalysis explorer — custom maps and time series of any atmospheric variable, 1940 to present.

Cameron Beccario's iconic interactive globe — animated wind, currents, waves, and atmospheric chemistry.

Build custom reanalysis composite maps for any date range and any atmospheric variable, 1948 to present.

The canonical dictionary of atmospheric sciences — maintained by the American Meteorological Society.

NWS's free online meteorology curriculum — fundamentals through synoptic, tropical, radar, and satellite.

UCAR's long-standing real-time weather gateway — dense, text-forward, comprehensive operational products.

The gold-standard state mesonet — 120 Oklahoma stations reporting weather and soil data every 5 minutes.

Kentucky's statewide mesoscale observation network — 70+ stations reporting 5-minute weather and soil data.

Texas Tech's mesonet covering West Texas and eastern New Mexico — 150+ stations in supercell country.

The research group that defined modern atmospheric-river science — IVT, ensemble plumes, landfall tool.

AR scale (Cat 1–5) forecasted at every West Coast landfall point over the next 7 days, ensemble-driven.

NOAA's Volcanic Ash Advisory Center — advisories for ash clouds threatening aviation and Pacific shipping.

Global array of 4,000+ autonomous ocean profilers reporting temperature and salinity every 10 days.

Near-real-time AIS positions for tens of thousands of vessels worldwide — Oceana + Google partnership.

Amtrak's network of weather stations along major rail routes — real-time air and rail-head temperature.

FHWA's Road Weather Management Program — the federal authority on weather-related highway operations.

California's real-time road map — live cameras, chain controls, lane closures, and CHP incidents.

FHWA's national road-weather portal — real-time observations from RWIS roadside stations across the country.