081  
FNUS73 KAPX 290713  
FWSAPX  
 
SPOT FORECAST FOR TIN BRIDGE...MDNR  
NATIONAL WEATHER SERVICE GAYLORD MI  
313 AM EDT SAT APR 29 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 1200 EDT ON APRIL 29.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (989) 732-9306, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
SURFACE RIDGING BUILDING INTO NORTHERN MICHIGAN WILL  
PROVIDE OUR AREA WITH A MAINLY DRY AND COOL SATURDAY. WIDESPREAD  
PRECIP WILL DEVELOP TONIGHT FROM SOUTH TO NORTH AS DEEP MOISTURE  
SURGES NORTHWARD AHEAD OF A WARM FRONT ASSOCIATED LOW PRESSURE  
DEVELOPING OVER THE SOUTHERN PLAINS. HEAVY RAINFALL IS EXPECTED FOR  
SUNDAY AND SUNDAY NIGHT AS THIS SYSTEM SLOWLY PUSHES NORTHWARD  
TOWARD THE WESTERN GREAT LAKES REGION.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).  
TEMPERATURE.........45 AT IGNITION...MAX 51.  
RH..................45 PERCENT AT IGNITION...MIN 36 PERCENT.  
WIND (20 FT)........WINDS NORTH AT 6 MPH AT IGNITION...OTHERWISE  
LIGHT WINDS BECOMING NORTH 5 TO 6 MPH EARLY IN  
THE MORNING.  
MIXING HEIGHT.......3500 FT AGL AT IGNITION...OTHERWISE 2500-4100  
FT AGL.  
TRANSPORT WINDS.....NORTHEAST 12 TO 15 MPH.  
VENT RATE...........GOOD /500 AT IGNITION. MAX...GOOD /500/.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH AT IGNITION...MAX 5.  
 
TIME (EDT) 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........35 40 41 44 49 52  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............45 47 49 50 51 51  
RH..............45 42 39 37 36 36  
20 FT WIND DIR..N N N N N N  
20 FT WIND SPD..6 6 6 6 6 6  
20 FT WIND GUST.10 10 10 10 10 10  
MIX HGT (KFT)...3.5 3.8 4.0 4.1 4.1 4.0  
TRANSP WIND DIR.N N N N NE NE  
TRANSP WIND SPD.14 14 14 13 12 12  
HAINES INDEX....4 5 5 5 5 5  
VRATE/100.......5 5 5 5 5 5  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN  
IN THE EVENING, THEN RAIN AFTER MIDNIGHT.  
TEMPERATURE.........MIN 36.  
RH..................MAX 89 PERCENT.  
WIND (20 FT)........NORTHEAST WINDS 5 TO 6 MPH EARLY IN THE EVENING  
BECOMING LIGHT, THEN BECOMING EAST 5 TO 6 MPH  
AFTER MIDNIGHT.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........59 68 78 86 92 95 96 96 96 97 98 99  
WEATHER COV..... SCH SCH SCH CHC CHC LKY LKY DEF DEF LKY  
WEATHER TYPE.... RN RN RN RN RN RN RN RN RN RN  
TSTM COV........  
TEMP............50 48 46 44 42 40 39 38 38 38 37 37  
RH..............37 42 47 53 57 64 70 73 76 79 85 85  
20 FT WIND DIR..N N NE NE NE NE NE E E E E E  
20 FT WIND SPD..6 6 5 4 4 3 4 5 6 6 6 6  
20 FT WIND GUST. 5 5 5 5  
 

 
FORECASTER...MONIQUE RUNYAN  
REQUESTED BY...DON KLINGLER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1707983.0/APX  
 
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