KNKX WSR-88D VAD Hodograph and Wind Profile

View the latest Velocity Azimuth Display (VAD) wind profile from the KNKX WSR-88D NEXRAD weather radar near San Diego, 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=KNKX&resolution=high&qc=true&showprofile=true&showmeta=true&showhodo=true&showrings=true&ticmarks=axis&umin=-50&umax=20&vmin=-20&vmax=50&maxheight=12000&dynamicbounds=true&sfcstn=KNKX

RADAR SITE:  KNKX - San Diego, CA (SFC ELEV 291 m AMSL)
NIDS SOURCE: https://tgftp.nws.noaa.gov/SL.us008001/DF.of/DC.radar/DS.48vwp/SI.knkx/sn.last
NIDS VALID:  2026-08-11 02:55 UTC

SFC STATION: KNKX (METAR)
SFC SOURCE:  https://aviationweather.gov/api/data/metar?ids=KNKX&format=json
SFC VALID:   2026-08-11 02:55 UTC
Decoded surface and VAD profile data

Surface observation

METAR KNKX 110255Z 29009KT 10SM BKN060 23/19 A2992 RMK AO2 SLP125 T02330194 58004

VAD wind profile

QCHeight AGL (m)Speed (kt)Direction (°)RMS (kt)
OK109.0290—
OK1369.03372.3
OK1979.004.0
FAIL3198.03517.8
FAIL3495.03152.8
FAIL5626.0335.2
FAIL6236.03343.6
FAIL7454.01166.6
FAIL42505.0813.5
OK580512.0982.5
OK641516.01572.6
OK763418.01702.3
OK824347.01313.2

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).

KNKX WSR-88D NEXRAD VAD hodograph showing the wind profile by height near San Diego, CA, valid 2026-08-11 02:55 UTC