KLWX WSR-88D VAD Hodograph and Wind Profile

View the latest Velocity Azimuth Display (VAD) wind profile from the KLWX WSR-88D NEXRAD weather radar near Sterling-Washington (DC), VA. 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=KLWX&resolution=high&qc=true&showprofile=true&showmeta=true&showhodo=true&showrings=true&ticmarks=axis&umin=-20&umax=30&vmin=-10&vmax=40&maxheight=12000&dynamicbounds=true&sfcstn=KIAD

RADAR SITE:  KLWX - Sterling-Washington (DC), VA (SFC ELEV 89 m AMSL)
NIDS SOURCE: https://tgftp.nws.noaa.gov/SL.us008001/DF.of/DC.radar/DS.48vwp/SI.klwx/sn.last
NIDS VALID:  2026-08-02 09:06 UTC

SFC STATION: KIAD (METAR)
SFC SOURCE:  https://aviationweather.gov/api/data/metar?ids=KIAD&format=json
SFC VALID:   2026-08-02 08:52 UTC
Decoded surface and VAD profile data

Surface observation

METAR KIAD 020852Z 15007KT 10SM FEW020 FEW070 OVC100 24/20 A2987 RMK AO2 SLP112 60000 T02390200 56006 $

VAD wind profile

QCHeight AGL (m)Speed (kt)Direction (°)RMS (kt)
OK107.0150—
OK12413.01575.0
OK21615.01543.5
OK33821.01684.2
OK52124.01823.1
OK58224.01843.6
OK76426.01943.4
OK82527.01983.0
OK103926.01972.2
OK113025.01962.7
OK134424.01901.4
OK143523.01891.4
OK170923.01912.3
OK174023.01922.2
OK204518.01821.8
OK219718.01842.1
OK234918.01892.5
OK265422.02111.6
OK274620.02151.6
OK295918.02181.9
OK326417.02311.6
OK344715.02322.1
OK356916.02251.5
OK387318.02221.6
OK417820.02171.3
OK423921.02161.5
OK448322.02151.6
OK478823.02141.4
OK509327.02171.5
OK530626.02152.5
OK539728.02171.3
OK570228.02231.2
OK600731.02151.2
OK658629.02092.2
OK661730.02161.3

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).

KLWX WSR-88D NEXRAD VAD hodograph showing the wind profile by height near Sterling-Washington (DC), VA, valid 2026-08-02 09:06 UTC