TW1Analyst

Point Forecast

Open‑Meteo • 7‑Day

Activate FORECAST mode, then click anywhere on the map.

Data: Open‑Meteo

Volume Render

3D Radar Storm Model

Select a radar station, then draw a box on the map.

WebGL2 ray-marched volume

Cross Section

Vertical Radar Slice

Select a radar station first, then press CROSS SECT.

Vertical radar cross section

Settings

Display & Rendering

Rendering

Smooth 2D Radar

Blend adjacent rays and gates instead of NEXRAD's native pie-slice shading.

Smooth Cross Section

Interpolate between azimuths and soften ray-stepping in the vertical slice.

Radar Opacity

Fade the radar overlay to see the base map underneath.

100%

Map Overlays

Range Rings

Concentric range circles around the selected radar site.

Ring spacing

Velocity

Velocity Dealiasing

Unfolds velocity that wraps past the Nyquist limit (e.g. a real +58kt gate reading as -6kt). Experimental — turn off if you see stray flipped range bins or beams.

Storm Relative Motion

Subtracts storm motion from base velocity to help reveal rotation and inbound/outbound couplets.

Storm speed (kt) Direction (° from)

AI Storm Detection Experimental

Enable AI Detection

Scans for rotation couplets (velocity, RHO- and persistence-filtered) and hail cores. Hail cores get a real size estimate (MESH) and severe-hail probability (POSH) via the Witt et al. (1998) NWS/NSSL algorithm, using live atmospheric temperature data. Automated pattern-matching, not a substitute for official warnings.

TW1Analyst

History

Load an archived scan

Date & Time (your local time)

Date Time

Also fetch for that time

Local Storm Reports

Warnings

mPING Reports

TW1Analyst

Radar Products

Select Moment

NEXRAD Level II

Legend

Symbols & Colors

Warnings

Tornado Warning

Severe Thunderstorm Warning

Special Weather Statement

Special Marine Warning

Reports

mPING Reports

NWS Local Storm Reports

TW1Analyst • Legend

Warning

National Weather Service • Active Alert

Headline

Areas Affected

Timing

Source: National Weather Service