KNQA WSR-88D VAD Hodograph and Wind Profile

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

RADAR SITE:  KNQA - Memphis, TN (SFC ELEV 103 m AMSL)
NIDS SOURCE: https://tgftp.nws.noaa.gov/SL.us008001/DF.of/DC.radar/DS.48vwp/SI.knqa/sn.last
NIDS VALID:  2026-08-11 01:58 UTC

SFC STATION: KNQA (METAR)
SFC SOURCE:  https://aviationweather.gov/api/data/metar?ids=KNQA&format=json
SFC VALID:   2026-08-11 01:50 UTC
Decoded surface and VAD profile data

Surface observation

METAR KNQA 110150Z 16006KT 10SM CLR 29/23 A3005

VAD wind profile

QCHeight AGL (m)Speed (kt)Direction (°)RMS (kt)
OK106.0160—
OK11014.01804.3
OK20217.01794.0
OK32418.01984.9
OK50721.01893.6
OK53718.01973.9
OK72017.02023.8
OK81119.02004.1
OK99418.02065.1
OK111617.02063.3
OK133018.02124.4
OK142117.02163.5
OK166518.02244.6
OK172617.02293.7
OK203117.02453.1
OK215216.02473.6
OK233515.02553.2
OK264011.02832.1
OK273211.02932.8
OK294510.03122.5
OK325014.0133.4

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).

KNQA WSR-88D NEXRAD VAD hodograph showing the wind profile by height near Memphis, TN, valid 2026-08-11 01:58 UTC