KDAX WSR-88D VAD Hodograph and Wind Profile

View the latest Velocity Azimuth Display (VAD) wind profile from the KDAX WSR-88D NEXRAD weather radar near Sacramento-Davis, CA. 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=KDAX&resolution=high&qc=true&showprofile=true&showmeta=true&showhodo=true&showrings=true&ticmarks=axis&umin=-30&umax=40&vmin=-40&vmax=30&maxheight=12000&dynamicbounds=true&sfcstn=KSAC

RADAR SITE:  KDAX - Sacramento-Davis, CA (SFC ELEV 9 m AMSL)
NIDS SOURCE: https://tgftp.nws.noaa.gov/SL.us008001/DF.of/DC.radar/DS.48vwp/SI.kdax/sn.last
NIDS VALID:  2026-08-02 06:50 UTC

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

Surface observation

METAR KSAC 020653Z AUTO 16003KT 10SM CLR 23/13 A2982 RMK AO2 SLP098 T02280128

VAD wind profile

QCHeight AGL (m)Speed (kt)Direction (°)RMS (kt)
OK103.0160—
FAIL1439.02235.0
OK2049.03014.2
FAIL2965.02744.3
FAIL3576.02785.2
FAIL5705.03123.2
FAIL6006.03043.8
FAIL7225.03223.1
FAIL9055.03233.8
FAIL10588.03164.1
OK12108.03323.6
OK133210.03384.4
FAIL15159.045.0
FAIL17288.065.4
FAIL18207.0215.1
FAIL21246.03515.7
FAIL22167.03115.5
FAIL242911.02896.7
OK273423.02977.1
FAIL279510.02837.9
OK303918.02604.3

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).

KDAX WSR-88D NEXRAD VAD hodograph showing the wind profile by height near Sacramento-Davis, CA, valid 2026-08-02 06:50 UTC