346  
FNUS71 KLWX 201834  
FWSLWX  
 
SPOT FORECAST FOR SAR AT PANORAMA...SHENANDOAH NATIONAL PARK  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
234 PM EDT THU AUG 20 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1500 EDT ON AUGUST 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
MULTIPLE ROUNDS OF SHOWERS AND THUNDERSTORMS ARE LIKELY THIS AFTERNOON  
INTO EARLY THIS EVENING. A FRONTAL SYSTEM IS EXPECTED TO STALL NEAR OR  
JUST SOUTHEAST OF THE MID-ATLANTIC, AND ADDITIONAL RIPPLES OF LOW  
PRESSURE RIDING ALONG IT MAY RESULT IN PERIODIC SHOWERS AND A FEW  
THUNDERSTORMS AT TIMES THROUGH THE UPCOMING WEEKEND.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) THEN BECOMING  
MOSTLY SUNNY (30-40 PERCENT). NUMEROUS SHOWERS  
LATE IN THE AFTERNOON. SCATTERED THUNDERSTORMS  
THROUGH THE DAY. SCATTERED SHOWERS LATE IN THE  
AFTERNOON.  
CHANCE OF PCPN......70 PERCENT.  
CHANCE OF THUNDER...42 PERCENT.  
MAX TEMPERATURE.....AROUND 81.  
MIN HUMIDITY........65 PERCENT.  
SURFACE WINDS (MPH).WEST WINDS AROUND 5 MPH.  
 
TIME (EDT) 3PM 4PM 5PM  
SKY (%).........71 40 25  
WEATHER COV.....NUM NUM SCT  
WEATHER TYPE....RW RW RW  
TSTM COV........SCT SCT SCT  
CHC OF PCPN (%).70 70 50  
CHC OF THDR (%).40 40 40  
TEMP............81 80 76  
RH..............65 69 76  
SURFACE WND DIR.W W W  
SURFACE WND SPD.5 5 5  
SURFACE WND GST.12 12 13  
 

 
FORECASTER...ROSA  
REQUESTED BY...L. TUCKER  
TYPE OF REQUEST...SAR  
.TAG 2620098.0/LWX  
.DELDT 08/20/26  
.FORMATTERVERSION 2.0.0  
.EMAIL SHEN_COMMUNICATION@NPS.GOV  
 
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