500  
FNUS74 KMRX 211055  
FWSMRX  
 
SPOT FORECAST FOR GREAT SMOKEY MOUNTAINS ECLIPSE EVENT...NPS  
NATIONAL WEATHER SERVICE MORRISTOWN TN  
655 AM EDT MON AUG 21 2017  
 
FORECAST IS BASED ON INCIDENT TIME OF 0700 EDT ON AUGUST 21.  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE...AT 1-800-697-0075. IF POSSIBLE...PLEASE PROVIDE FEEDBACK  
FOR EVERY SPOT FORECAST REQUEST.  
   
DISCUSSION
 
 
A RIDGE OF HIGH PRESSURE WILL REMAIN ACROSS THE TENNESSEE VALLEY AND  
SOUTHERN APPALACHIANS PRODUCING MOSTLY DRY CONDITIONS, EXCEPT FOR A SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS ACROSS THE HIGHER ELEVATIONS.  
PRECIPITATION CHANCES WILL INCREASE BY MID WEEK AS THE NEXT COLD FRONT MOVES IN.  
   
REST OF TODAY
 
 
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
CHANCE OF PCPN......20 PERCENT.  
MAX TEMPERATURE.....AROUND 86.  
MIN HUMIDITY........51 PERCENT.  
MAX APPARENT TEMP...87.  
SURFACE WINDS.......SOUTH WINDS AROUND 5 MPH EARLY IN THE MORNING  
BECOMING LIGHT.  
MIXING HEIGHT MSL...9100 FT MSL.  
BOTTOM MIX HGT AGL..9099 FT AGL.  
TOP MIX HGT AGL.....9099 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 1 MPH.  
DISPERSION..........7.  
RAINFALL AMOUNT.....0.04 INCHES.  
SNOWFALL AMOUNT.....0.0 INCHES.  
 
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM  
SKY (%).........13 9 8 5 3 11 26 34 52 55 57 53 51  
WEATHER COV..... SCH SCH SCH SCH SCH SCH  
WEATHER TYPE.... RW RW RW RW RW RW  
TSTM COV........ SCH SCH SCH SCH SCH SCH  
CHC OF PCPN (%).0 10 10 10 10 10 10 20 20 20 20 20 20  
TEMP............65 67 70 74 77 80 82 83 80 84 85 84 83  
RH..............97 87 81 74 67 60 55 53 58 53 51 53 57  
APARNT TMP (F)..65 67 70 74 77 82 83 84 82 86 87 86 85  
SURFACE WND DIR.S S S W NW NW N N N E E SE SE  
SURFACE WND SPD.5 4 3 2 2 2 3 3 3 2 2 2 3  
SURFACE WND GST.10 5 5 5 5 5 5  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE  
EVENING.  
CHANCE OF PCPN......20 PERCENT.  
MIN TEMPERATURE.....AROUND 66.  
MAX HUMIDITY........93 PERCENT.  
MAX APPARENT TEMP...82.  
SURFACE WINDS.......LIGHT WINDS BECOMING SOUTH 5 TO 6 MPH LATE IN  
THE EVENING.  
MIXING HEIGHT MSL...  
BOTTOM MIX HGT AGL..  
TOP MIX HGT AGL.....  
TRANSPORT WINDS.....  
DISPERSION..........  
RAINFALL AMOUNT.....0.02 INCHES.  
SNOWFALL AMOUNT.....0.0 INCHES.  
 
TIME (EDT) 8 PM 10 PM MIDNGT 2 AM 4 AM 6 AM  
SKY (%).........38 35 33 31 39 39  
WEATHER COV.....S CHC S CHC S CHC  
WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).20 20 20 10 10 10  
TEMP............80 75 72 70 69 67  
RH..............62 71 79 84 84 90  
APARNT TMP (F)..82 75 72 70 69 67  
SURFACE WIND....SE 3 S 3 S 4 S 6 S 5 S 5  
SURFACE WND GST.5 5 5 10 10 10  
   
TUESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE LATE MORNING AND  
AFTERNOON.  
CHANCE OF PCPN......20 PERCENT.  
MAX TEMPERATURE.....AROUND 87.  
MIN HUMIDITY........51 PERCENT.  
MAX APPARENT TEMP...89.  
SURFACE WINDS.......SOUTHWEST WINDS AROUND 5 MPH.  
MIXING HEIGHT MSL...4900 FT MSL.  
BOTTOM MIX HGT AGL..4899 FT AGL.  
TOP MIX HGT AGL.....4899 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 8 MPH.  
DISPERSION..........23.  
RAINFALL AMOUNT.....0.08 INCHES.  
SNOWFALL AMOUNT.....0.0 INCHES.  
 
TIME (EDT) 8 AM 11 AM 2 PM 5 PM  
SKY (%).........33 36 46 44  
WEATHER COV..... S CHC S CHC  
WEATHER TYPE....NONE NONE RNSHWR RNSHWR  
TSTM COV........ S CHC S CHC  
CHC OF PCPN (%).10 10 20 20  
TEMP............68 78 85 86  
RH..............93 71 55 51  
APARNT TMP (F)..68 78 88 88  
SURFACE WIND....S 5G10 W 5G10 W 5G10 W 5G10  
 

 
FORECASTER...DAVID HOTZ  
REQUESTED BY...DENVER INGRAM  
TYPE OF REQUEST...OTHER  
.TAG 1714663.0/MRX  
 
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