827  
FNUS73 KDLH 210420  
FWSDLH  
 
SPOT FORECAST FOR SUPERIOR ENTRY BOAT SAR...ST. LOUIS COUNTY SEARCH AND RESCUE  
NATIONAL WEATHER SERVICE DULUTH MN  
1120 PM CDT SAT JUL 20 2024  
 
FORECAST IS BASED ON FORECAST START TIME OF 2300 CDT ON JULY 20.  
IF THERE ARE QUESTIONS OR CONCERNS WITH THIS FORECAST, OR IF  
CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL  
WEATHER SERVICE IN DULUTH AT 218-729-0653.  
   
DISCUSSION
 
 
NORTHEAST WINDS CONTINUE OVERNIGHT AND THROUGH SUNDAY. WINDS  
SHOULD CONTINUE TO CALM THROUGH SUNDAY MORNING, AND WAVE HEIGHTS  
SHOULD STEADILY COME DOWN. AS WIND DRIVEN WAVES DECREASE,  
LINGERING WAVE SWELL MAY PERSIST. THERE IS A 20 PERCENT CHANCE FOR  
AN ISOLATED RAIN SHOWER, AND SOME LIGHTNING COULD BE POSSIBLE  
(AROUND A 5% CHANCE IN ANY SHOWER THAT DEVELOPS). THE BEST  
CHANCE FOR ANY PRECIPITATION IS AROUND MIDNIGHT, DECREASING  
THROUGH THE EARLY MORNING HOURS. WATER SURFACE TEMPERATURES SHOULD  
STAY STEADY IN THE MID 60S AND MAY SLIGHTLY WARM FURTHER. SOME  
PATCHY FOG COULD DEVELOP THROUGH THE EARLY MORNING HOURS. FOR  
ENROUTE AND AREAL FORECASTS PLEASE CONTACT NWS DULUTH MN.  
   
REST OF TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS OVERNIGHT. PATCHY FOG  
OVERNIGHT.  
CHANCE OF PCPN......20 PERCENT.  
CHANCE OF THUNDER...3 PERCENT.  
MIN TEMPERATURE.....AROUND 56.  
SURFACE WINDS (MPH).NORTHEAST WINDS 7 TO 12 KNOTS.  
WAVE HEIGHT.........WAVES 1 TO 2 FEET.  
WAVE PERIOD.........2 TO 5 SECONDS.  
CEILING (KFT).......2.9 INCREASING TO 25 OVERNIGHT.  
VISIBILITY (SM).....6 DECREASING TO 3.  
LAKE SURFACE TEMP...65 DEGREES FAHRENHEIT.  
WAVE DIRECTION......60.  
 
TIME (CDT) 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY COVER.......MC MC MC MC MC MC MC  
WEATHER COV..... SCH PTY PTY PTY PTY PTY  
WEATHER TYPE.... RW FOG FOG FOG FOG FOG  
TSTM COV........ SCH  
CHC OF PCPN (%).10 20 10 10 0 0 0  
CHC OF THDR (%).0 0 0 0 0 0 0  
TEMP............63 62 61 60 58 58 57  
WAVE PERIOD (S).4 5 5 5 5 5 5  
WAVE HEIGHT (FT)2.5 2 2 1 1 1 1  
CEILING (KFT)...2.9 25 25 25 25 25 25  
VISIBILITY (SM).7 6 6 4 4 5 3  
SURFACE WND DIR.NE NE NE NE NE NE NE  
SURFACE WND SPD.12 10 9 7 7 7 7  
SURFACE WND GST. 11 11 11 10 11 11  
WAVE DIRECTION..060 060 060 060 060 060 060  
WAVE PERIOD (S).5 5 5 5 5 5 5  
WAVE HEIGHT (FT)2.5 2 2 1 1 1 1  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). PATCHY FOG EARLY  
IN THE MORNING.  
CHANCE OF PCPN......0 PERCENT.  
CHANCE OF THUNDER...5 PERCENT.  
MAX TEMPERATURE.....AROUND 67.  
SURFACE WINDS (MPH).NORTHEAST WINDS 8 TO 11 KNOTS.  
WAVE HEIGHT.........WAVES CALM TO 2 FEET.  
WAVE PERIOD.........5 SECONDS.  
CEILING (KFT).......25.  
VISIBILITY (SM).....2.25 INCREASING TO 10.  
LAKE SURFACE TEMP...57 DEGREES FAHRENHEIT.  
WAVE DIRECTION......60.  
 
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY COVER.......MCLDY PCLDY PCLDY MCLEAR MCLEAR MCLEAR  
WEATHER COV.....PATCHY  
WEATHER TYPE....FOG NONE NONE NONE NONE NONE  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0  
CHC OF THDR (%).0 0 0 0 10 10  
TEMP............57 58 61 61 63 66  
WAVE PERIOD (S).5 5 4 4 3 3  
WAVE HEIGHT (FT)1 1 1 2 2 2  
CEILING (KFT)...25 25 25 25 25 25  
VISIBILITY (SM).2.2 10 10 10 10 10  
SURFACE WIND....NE 8 NE 9 NE 10 NE 10 NE 11 NE 11  
SURFACE WND GST.12 13 12 13 13 13  
WAVE DIRECTION..060 060 060 060 060 060  
WAVE PERIOD (S).5 5 4 4 3 3  
WAVE HEIGHT (FT)1 1 1 2 2 2  
 

 
FORECASTER...KETZEL  
REQUESTED BY...JUSTIN LEBLANC  
TYPE OF REQUEST...MARINE  
.TAG 2418571.0/DLH  
.DELDT 07/20/24  
.FORMATTERVERSION 2.0.0  
.EMAIL EMERGENCY@SLCRS.ORG  
 
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