816  
FNUS71 KLWX 291236  
FWSLWX  
 
SPOT FORECAST FOR CORBIN CABIN HELO OPERATION...NPS SHENANDOAH NP  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
836 AM EDT MON MAY 29 2017  
 
FORECAST IS BASED ON INCIDENT TIME OF 0000 EDT ON MAY 30.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
WEAK FRONTS WILL WAVER ACROSS THE AREA THROUGH WEDNESDAY. A FEW  
SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE AT TIMES THROUGH THIS  
TIME, BUT CERTAINLY NO PERIOD WILL BE A WASHOUT. HIGH PRESSURE  
WILL BUILD ACROSS THE AREA ON THURSDAY.  
 
PATCHY FOG MAY BE PRESENT EACH MORNING (EVEN AT AIRPORTS WE ONLY  
FORECAST IT OUT TO 30 HOURS DUE TO FORECASTING CHALLENGES). IF IT  
DOES DEVELOP, IT WILL BURN OFF BY MID MORNING.  
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT), THEN BECOMING  
PARTLY SUNNY (60-70 PERCENT). PATCHY FOG AFTER  
MIDNIGHT. A SLIGHT CHANCE OF SHOWERS LATE IN  
THE MORNING. A CHANCE OF SHOWERS AND  
THUNDERSTORMS EARLY IN THE AFTERNOON.  
MAX TEMPERATURE.....AROUND 74.  
MIN HUMIDITY........55 PERCENT.  
SURFACE WINDS.......WEST WINDS 5 TO 6 MPH AFTER MIDNIGHT, BECOMING  
LIGHT AND VARIABLE, THEN BECOMING SOUTHWEST 5  
TO 8 MPH.  
 
TIME (EDT) MIDNGT 2 AM 4 AM 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........38 40 34 34 40 48 58 65 73  
WEATHER COV..... PATCHY PATCHY PATCHY S CHC CHANCE CHANCE  
WEATHER TYPE....NONE FOG FOG FOG NONE NONE RNSHWR RNSHWR RNSHWR  
TEMP............63 63 61 60 64 68 71 73 73  
RH..............67 67 72 78 70 63 59 55 55  
SURFACE WIND....W 6 W 5 W 4 W 4 SW 5 SW 6 SW 6 SW 6 SW 7  
SURFACE WND GST. 5 5 10 10 10 15  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). A SLIGHT CHANCE  
OF SHOWERS EARLY IN THE MORNING. A CHANCE OF  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS  
EARLY IN THE AFTERNOON.  
MAX TEMPERATURE.....AROUND 71.  
MIN HUMIDITY........47 PERCENT.  
SURFACE WINDS.......WEST WINDS 6 TO 11 MPH.  
 
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........42 45 46 49 56 64  
WEATHER COV..... S CHC S CHC S CHC CHANCE CHANCE  
WEATHER TYPE....NONE RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TEMP............58 61 65 68 70 70  
RH..............72 70 58 52 47 49  
SURFACE WIND....W 7 W 6 W 7 W 8 W 8 W 10  
SURFACE WND GST.10 10 10 15 20 25  
 

 
FORECASTER...SILVERMAN  
REQUESTED BY...CHARLES RUDACILLE  
TYPE OF REQUEST...OTHER  
.TAG 1709943.2/LWX  
 
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