503 
FNUS73 KUNR 191038
FWSUNR

Spot Forecast for Fort Meade RX...BLM
National Weather Service Rapid City SD
438 AM MDT Sat Oct 19 2019

Forecast is based on ignition time of 1000 MDT on October 19. 
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Dry and mild conditions expected today. Winds will
be relatively light, making wind direction a difficult forecast.
Westerly winds into early afternoon are expected, but then may
turn more southeast by late afternoon. Chances of wetting rain
increase very late tonight into Sunday, with strong northwest
winds likely Sunday.

.REST OF TODAY...

Sky/weather.........Partly cloudy. 
Temperature.........48 at ignition...Max 58. 
RH..................40 percent at ignition...Min 28 percent. 
Wind (20 ft)........Winds west around 10 mph at ignition...turning
                    southeast by late afternoon. 
CWR.................0 percent. 
LAL.................1. 
Haines Index........4 or low potential for large plume dominated 
                    fire growth. 
Mixing height.......Around 2000 ft agl at ignitions, increasing to
                    7900 to 8400 ft agl by early afternoon.
Transport winds.....West 15 to 20 mph.
Smoke dispersal.....Poor at ignition, increasing to very good by
                    early afternoon. 

TIME (MDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM 
Sky (%).........13  13  22  22  22  50  50  50  
Weather cov.....                                
Weather type....                                
Tstm cov........                                
CWR.............0   0   0   0   0   0   0   0   
LAL.............1   1   1   1   1   1   1   1   
Temp............48  51  52  55  56  57  56  54  
RH..............40  36  33  30  29  28  30  35  
20 FT wind dir..W   W   NW  W   W   W   SE  SE   
20 FT wind spd..9   10  9   8   7   6   6   6                            
Mix hgt (kft)...2.0 3.0 4.0 6.0 7.0 8.0 7.0 3.0 
Transp wind dir.W   W   W   W   W   W   W   W   
Transp wind spd.20  20  16  16  16  16  16  16  
Haines index....3   3   4   4   4   4   4   4   

.TONIGHT...

Sky/weather.........Mostly cloudy. Slight chance of rain in the 
                    evening, then chance of rain overnight. 
Temperature.........Min 38. 
RH..................Max 76 percent. 
Wind (20 ft)........Southeast 5 to 10 mph shifting to the northeast 
                    early in the morning. 
CWR.................20 percent. 
LAL.................1. 
Haines Index........4 or low potential for large plume dominated 
                    fire growth. 
Mixing height.......200 to 700 ft agl. 
Transport winds.....South around 10 mph. 
Smoke dispersal.....Poor. 

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 
Sky (%).........71  71  71  81  81  81  87  87  87  88  88  88  
Weather cov.....                    SCH CHC CHC CHC CHC CHC CHC 
Weather type....                    RN  RN  RN  RN  RN  RN  RN  
Tstm cov........                                                
CWR.............0   0   0   10  10  20  20  20  20  20  20  20 
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............49  47  44  44  44  44  44  43  42  42  41  41
RH..............46  51  55  55  55  57  60  65  65  65  65  65
20 FT wind dir..SE  SE  SE  SE  SE  S   S   S   S   S   SE  NE
20 FT wind spd..6   6   6   6   6   6   7   7   6   6   5   5
Mix hgt (kft)...0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.SE  SE  SE  SE  SE  SE  S   S   S   S   S   S
Transp wind spd.10  10  10  10  10  10  9   9   9   9   9   9
Haines index....4   4   4   4   4   3   3   3   3   3   3   3


.SUNDAY...

Sky/weather.........Mostly cloudy. Rain likely.
Temperature.........Max 44. 
RH..................Min 62 percent. 
Wind (20 ft)........Northwest 15 to 20 mph with gusts to around 30 mph 
                    increasing to 20 to 30 mph with 
                    gusts to around 38 mph in the afternoon. 
CWR.................80 percent. 
LAL.................1. 
Haines Index........3 or very low potential for large plume 
                    dominated fire growth. 
Mixing height.......2500 to 3500 ft agl. 
Transport winds.....Northwest around 20 mph increasing to
                    around 40 mph in the afternoon. 
Smoke dispersal.....Good.

$$
Forecaster...JJ
Requested by...Nate Wiedow
Type of request...PRESCRIBED
.TAG 1917560.0/UNR
.DELDT 10/19/19
.FormatterVersion 1.0.26
.EMAIL nwiedow@blm.gov