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Product Timestamp: 2021-05-27 11:58 UTC

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FWSBIS

Spot Forecast for Eckert Ranch South...FWS
National Weather Service Bismarck ND
658 AM CDT Thu May 27 2021

Forecast is based on ignition time of 0700 CDT on May 27. 
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Look for cloudy skies this morning becoming partly sunny by mid to
late morning. East winds 5 to 10 mph this morning will shift southeast
this afternoon. Minimum humidities will drop to around 20 percent
this afternoon. 

.REST OF TODAY...

Sky/weather.........Mostly cloudy then becoming sunny. 
Chance of pcpn......0 percent. 
Max temperature.....Around 57. 
Min humidity........21 percent. 
Wind (20 ft)........East becoming southeast winds 10 to 15 mph. 
Mixing height.......5100 ft AGL. 
Transport winds.....Southeast 5 to 9 mph. 
Smoke dispersal.....Poor (3400 knot-ft) early in the morning 
                    increasing to fair (23900 knot-ft) in the 
                    afternoon. 
Haines Index........3 to 4 or very low to low potential for large 
                    plume dominated fire growth. 

TIME (CDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 
Sky (%).........81  76  73  67  51  19  19  10  6   4   3   
Weather cov.....                                            
Weather type....                                            
Tstm cov........                                            
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   
Temp............39  41  43  45  47  50  52  53  56  57  57  
RH..............62  59  55  49  43  36  31  28  24  22  22  
20 FT wind dir..E   E   E   E   E   E   SE  SE  SE  SE  SE  
20 FT wind spd..5   5   7   8   9   9   10  11  12  11  9   
20 FT wind gust.9   9   9   11  13  14  13  13  14  14  14  
Mix hgt (kft)...0.8 1.5 2.1 2.5 3.2 3.9 4.3 4.8 4.9 5.0 5.1 
Transp wind dir.E   SE  SE  E   E   E   E   E   E   SE  SE  
Transp wind spd.5   6   6   9   6   6   6   6   5   5   5   
Haines index....3   3   4   4   4   3   3   3   4   4   4   
SDspl kt-ft/10003   8   11  20  16  19  22  24  20  20  20  

.TONIGHT...

Sky/weather.........Clear. 
Chance of pcpn......0 percent. 
Min temperature.....Around 33. 
Max humidity........89 percent. 
Wind (20 ft)........South winds 5 to 9 mph. 
Mixing height.......500 ft AGL. 
Transport winds.....Southeast 5 to 12 mph shifting to the south 12 
                    to 16 mph late in the evening. 
Smoke dispersal.....Fair (24900 knot-ft) early in the evening 
                    decreasing to poor (6200 knot-ft) late in the 
                    night. 

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 
Sky (%).........2   2   1   3   3   1   1   1   1   1   0   2   
Weather cov.....                                                
Weather type....                                                
Tstm cov........                                                
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0   
Temp............57  56  54  49  45  42  40  38  37  36  34  33  
RH..............21  23  26  34  40  46  52  64  72  79  85  89  
20 FT wind dir..SE  SE  SE  SE  SE  SE  S   S   S   S   S   S   
20 FT wind spd..9   9   9   8   8   9   9   9   9   9   9   9   
20 FT wind gust.14  13  11  11  10  10  10  12  12  12  13  13  
Mix hgt (kft)...5.0 4.7 4.1 1.1 0.9 0.5 0.5 0.6 0.6 0.6 0.6 0.6 
Transp wind dir.SE  SE  SE  SE  SE  S   S   S   S   S   S   S   
Transp wind spd.5   5   7   7   12  15  16  16  15  15  15  12  
Haines index....4   4   4   4   4   4   3   3   3   4   4   4   
SDspl kt-ft/100020  19  25  7   9   7   7   8   8   8   8   6   

.FRIDAY...

Sky/weather.........Mostly sunny. 
Chance of pcpn......0 percent. 
Max temperature.....Around 65. 
Min humidity........35 percent. 
Wind (20 ft)........South winds 10 to 20 mph. 
Mixing height.......4000 ft AGL. 
Transport winds.....South 12 to 20 mph increasing to 22 to 25 mph 
                    in the late morning and afternoon. 
Smoke dispersal.....Poor (5900 knot-ft) early in the morning 
                    increasing to excellent (84200 knot-ft) in the 
                    afternoon. 
Haines Index........2 to 4 or very low to low potential for large 
                    plume dominated fire growth. 

TIME (CDT)      6 AM      9 AM      NOON      3 PM      
Sky (%).........1         18        19        29        
Weather cov.....                                        
Weather type....NONE      NONE      NONE      NONE      
Tstm cov........                                        
Chc of pcpn (%).0         0         0         0         
Temp............33        46        56        64        
RH..............89        65        47        37        
20 FT wind......S 9G12    S 15G18   S 19G21   S 20G22   
Mix hgt (ft)....600       2100      3200      3800      
Transport wind..S 12      S 22      S 24      S 25      
Haines index....4         3         2         2         
SDspl kt-ft/10006         39        67        84        

$$
Forecaster...HAMILTON
Requested by...D. Marsden
Type of request...PRESCRIBED
.TAG 2113325.0/BIS
.DELDT 05/27/21
.FormatterVersion 1.0.26
.EMAIL dominic_marsden@fws.gov