325
FNUS71 KLWX 122120
FWSLWX
SPOT FORECAST FOR A250...DOI
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
520 PM EDT FRI JUN 12 2026
FORECAST IS BASED ON FORECAST START TIME OF 1800 EDT ON JUNE 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
..SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM
DISCUSSION
THUNDERSTORMS HAVE CAUSED COOLER CONDITIONS, BUT THE HUMIDITY REMAINS
HIGH.
AS OF 5:10 PM, A STRONG THUNDERSTORM OVER FAIRFAX COUNTY IS APPROACHING.
THIS WILL MOVE THROUGH THE DISTRICT OF COLUMBIA AROUND 5:45 TO 6:30 PM.
THERE MAY BE A BRIEF LULL BUT ANOTHER ROUND OF SCATTERED STORMS MAY MOVE
THROUGH BETWEEN 7 PM AND 9 PM. LIGHTNING AND GUSTY WINDS AROUND 30 MPH
WILL ACCOMPANY THESE STORMS, AND THERE IS A CHANCE FOR A SEVERE STORM
DURING THIS TIME WITH WIND GUSTS AROUND 60 MPH.
THE THREAT FOR CONVECTION WILL WANE AFTER 9 PM.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THIS EVENING (60-90 PERCENT) THEN BECOMING
MOSTLY CLEAR (15-25 PERCENT) OVERNIGHT. LIKELY SHOWERS AND
CHANCE FOR A THUNDERSTORM THROUGH 9 PM.
CHANCE OF PCPN......50 PERCENT.
CHANCE OF THUNDER...46 PERCENT.
MIN TEMPERATURE.....AROUND 67.
MAX HUMIDITY........84 PERCENT.
SURFACE WINDS (MPH).WEST WINDS 5 TO 8 MPH WITH GUSTS TO AROUND 22
MPH BECOMING LIGHT.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........90 70 85 85 62 67 51 53 45 51 31 8
WEATHER COV.....LKY ISO SCT ISO
WEATHER TYPE....RW RW RW RW
TSTM COV........CHC SCHC CHC CHC
CHC OF PCPN (%).70 20 30 30 10 0 0 0 0 0 0 0
CHC OF THDR (%).40 10 30 30 10 0 0 0 0 0 0 0
TEMP............82 82 81 80 79 78 76 75 73 71 69 69
RH..............80 65 77 77 79 79 79 79 79 81 84 81
SURFACE WND DIR.VAR VAR W W NW NW NW NW NW NW NW NW
SURFACE WND SPD.5 8 6 5 5 5 5 5 5 5 5 3
SURFACE WND GST.10 16 15 12 9 10 10 10 12 10 10 9
FORECASTER...LASORSA
REQUESTED BY...LIA MCDONALD
TYPE OF REQUEST...OTHER
.TAG 2615422.0/LWX
.DELDT 06/12/26
.FORMATTERVERSION 2.0.0
.EMAIL LIA_MCDONALD@IOS.DOI.GOV
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