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=-40&umax=40&vmin=-40&vmax=40&maxheight=12000&dynamicbounds=true

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:  2026-07-31 22:36 UTC
Decoded surface and VAD profile data

VAD wind profile

QCHeight AGL (m)Speed (kt)Direction (°)RMS (kt)
FAIL11013.01226.7
OK20214.01304.7
OK32412.01603.8
OK50711.01854.9
OK53712.01954.9
OK72014.02294.1
OK81113.02432.2
OK99419.02632.1
OK111619.02621.8
OK133020.02671.7
OK142120.02641.5
OK166521.02651.0
OK172621.02650.9
OK203121.02680.8
OK215221.02730.8
OK233522.02810.9
OK264022.02920.9
OK273222.02961.0
OK294524.02981.4
OK325027.02971.1
OK343331.02981.8
OK355532.02991.1
OK385926.03051.2
OK416425.03141.1
OK425628.03140.8
OK446928.03141.2
OK477426.03130.8
OK507930.03100.7
OK529226.03101.0
OK538326.03101.0
OK568828.03050.8
OK599325.03030.7
OK657223.02922.4
OK660323.02922.4
OK721223.02851.7
OK751729.02861.4
OK782228.02811.8
OK812726.02782.2
OK843126.02772.7
OK904123.02811.8
OK1010821.02752.3
OK1056517.02702.2
OK1208912.02353.8
OK1361321.01851.5

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 2026-07-31 22:36 UTC