KTWX WSR-88D VAD Hodograph and Wind Profile

View the latest Velocity Azimuth Display (VAD) wind profile from the KTWX WSR-88D NEXRAD weather radar near Topeka, KS. The hodograph plots horizontal wind vectors by height above ground, with color-coded altitude layers and optional METAR surface-wind data.

Latest profile valid .

Request and source metadata
URL CALL:    http://www.twisterdata.com/vad/vad.php?radar=KTWX&resolution=high&qc=true&showprofile=true&showmeta=true&showhodo=true&showrings=true&ticmarks=axis&umin=-40&umax=20&vmin=-50&vmax=10&maxheight=12000&dynamicbounds=true&sfcstn=KTOP

RADAR SITE:  KTWX - Topeka, KS (SFC ELEV 417 m AMSL)
NIDS SOURCE: https://tgftp.nws.noaa.gov/SL.us008001/DF.of/DC.radar/DS.48vwp/SI.ktwx/sn.last
NIDS VALID:  2026-08-02 06:49 UTC

SFC STATION: KTOP (METAR)
SFC SOURCE:  https://aviationweather.gov/api/data/metar?ids=KTOP&format=json
SFC VALID:   2026-08-02 06:53 UTC
Decoded surface and VAD profile data

Surface observation

METAR KTOP 020653Z AUTO 00000KT 10SM CLR 21/19 A2995 RMK AO2 SLP135 T02110189

VAD wind profile

QCHeight AGL (m)Speed (kt)Direction (°)RMS (kt)
OK100.00—
OK13219.0164.3
OK19321.0263.7
OK34522.0213.1
OK49723.0212.7
OK55823.0202.7
OK77223.0152.8
OK80224.0142.9
OK101624.0103.2
OK110725.072.9
OK135125.013.4
OK141227.003.2
OK168630.033.6
OK171730.043.8
OK202133.023.6
OK217436.043.3
OK232636.053.5
OK263133.0133.5
OK272233.0153.0
OK293634.0143.6
OK324132.0162.7
OK339331.0193.8
OK354525.0193.1

QC keeps a level only where its wind speed exceeds twice its RMS fit error (the operational 2×RMS signal-to-noise test). FAIL rows are retained here for reference but excluded from QC-filtered plotting. A dash means the product reported no RMS for that level (kept, not assessable).

KTWX WSR-88D NEXRAD VAD hodograph showing the wind profile by height near Topeka, KS, valid 2026-08-02 06:49 UTC