771  
FNUS75 KBOU 181217  
FWSBOU  
 
SPOT FORECAST FOR LONG HOLLOW...USDA-FOREST SERVICE  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
617 AM MDT TUE SEP 18 2018  
 
FORECAST IS BASED ON REQUEST TIME OF 0700 MDT ON SEPTEMBER 18.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
THERE WILL BE A CONTINUED LIGHT TO MODERATE  
SOUTHWEST FLOW ALOFT OVER COLORADO. THE AIRMASS WILL BE DRIER  
TODAY WITH NO THUNDERSTORMS EXPECTED. TEMPERATURES WILL BE 1 TO 2  
DEGREES WARMER THAN YESTERSTAY.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1700, THEN PARTLY  
CLOUDY(30-40%).  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 79.  
MIN HUMIDITY........17%.  
WIND (20 FT)........SOUTH WINDS 3-6 MPH UNTIL 1100...THEN SOUTHWEST WINDS 5-11 MPH.  
MIXING HEIGHT.......2800-3800 FT AGL UNTIL 1100. 10500-11500 FT AGL  
AFTER 1300.  
TRANSPORT WINDS.....WEST 15-20 MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1000, THEN FAIR UNTIL 1100, THEN  
GOOD UNTIL 1200, THEN VERY GOOD UNTIL 1500,  
THEN EXCELLENT UNTIL 1600, THEN VERY GOOD.  
HAINES INDEX........5 MODERATE.  
 
FIRE WEATHER TABLE FOR LONG HOLLOW.  
 
+++ DATA IN THE FOLLOWING TABLE HAS BEEN SAMPLED DIRECTLY FROM THE  
FORECAST DATABASE. VALUES IN THE TABLE MAY VARY SLIGHTLY FROM  
INFORMATION IN THE NARRATIVE FORECAST. FEEDBACK WELCOME. +++  
 
FORECAST SC PP WR AT RH 20-FT G H L 15KFT MIXG TRANS VENTL AJTV  
VALID AT % % % F % WIND S I A WIND HGT WIND RATE RATNG  
MPH T L MPH AGL MPH KT-FT  
 
09/18-07 6 0 0 55 41 WSW 9 15 4 1 2635 W 13 28169 P  
09/18-08 6 0 0 58 39 WSW 9 15 4 1 2350 W 13 25972 P  
09/18-09 5 0 0 62 35 WSW 9 15 3 1 2066 W 13 23572 P  
09/18-10 5 1 0 68 28 WSW 9 14 4 1 4523 W 14 55368 F  
09/18-11 5 2 0 73 23 WSW 8 14 4 1 6980 WSW 15 91250 G  
09/18-12 5 3 1 77 19 WSW 8 13 4 1 9437 WSW 16131218 V  
09/18-13 10 3 1 78 18 WSW 8 14 4 1 10190 WSW 16140557 V  
09/18-14 16 3 1 79 17 SW 9 14 5 1 10943 SW 16149728 V  
09/18-15 21 3 1 79 17 SW 9 15 5 1 11696 SW 16158732 E  
09/18-16 28 3 1 79 17 SW 8 14 5 1 11486 SW 15146076 V  
09/18-17 36 3 1 78 17 SW 8 13 5 1 11275 SW 14133780 V  
09/18-18 43 3 1 77 19 SW 7 7 5 1 11064 SW 13121843 V  
09/18-19 41 3 1 73 22 SW 7 7 5 1 9660 WSW 13108627 V  
09/18-20 37 3 1 69 27 WSW 7 7 5 1 8255 WSW 13 94757 G  
09/18-21 35 3 1 65 31 WSW 7 7 5 1 6851 WSW 14 80232 G  
09/18-22 35 3 1 62 35 WSW 7 7 5 1 5917 WSW 13 66963 G  
09/18-23 33 3 1 60 37 WSW 8 8 5 1 4983 WSW 13 54430 F  
09/19-00 32 1 0 59 37 WSW 8 13 5 1 4049 WSW 13 42633 F  
09/19-01 31 1 0 58 38 WSW 9 14 5 1 4131 WSW 14 48917 F  
09/19-02 29 1 0 56 40 WSW 9 15 5 1 4213 WSW 15 55417 F  
09/19-03 28 1 0 55 40 WSW 10 16 5 1 4295 WSW 16 62132 G  
09/19-04 27 1 0 54 40 WSW 10 17 5 1 4042 WSW 16 57979 F  
09/19-05 26 1 0 54 38 WSW 10 17 5 1 3790 WSW 16 53887 F  
09/19-06 22 4 1 54 37 WSW 10 16 5 1 3537 WSW 16 49858 F  
09/19-07 26 4 1 55 37 WSW 9 16 5 1 2774 WSW 15 35315 P  
09/19-08 34 4 1 57 36 WSW 9 15 5 1 2011 WSW 13 22856 P  
09/19-09 38 4 1 61 32 WSW 8 13 5 1 1248 W 12 13096 P  
09/19-10 42 4 1 65 28 WSW 6 6 5 1 3950 WSW 13 44697 F  
09/19-11 49 4 1 70 23 SW 5 5 4 1 6652 SW 14 80741 G  
09/19-12 52 25 5 73 21 SW 3 3 4 2 9355 SW 15121228 V  
09/19-13 60 25 5 73 22 SSW 5 5 4 2 8435 SW 14 99524 G  
09/19-14 75 25 5 72 24 SSW 6 6 3 2 7515 SSW 13 79954 G  
09/19-15 82 25 5 70 28 S 7 7 3 4 6595 SSW 10 62517 G  
09/19-16 83 25 5 67 32 SSW 7 7 3 4 5401 SW 13 58608 F  
09/19-17 84 25 5 66 35 SW 7 7 2 4 4207 WSW 14 51422 F  
09/19-18 84 37 15 63 41 WSW 7 7 2 4 3013 W 16 40960 F  
09/19-19 84 37 15 61 45 WSW 8 13 2 4 2225 WSW 17 33894 P  
09/19-20 83 37 15 58 51 WSW 9 15 3 4 1437 WSW 20 24246 P  
09/19-21 83 37 15 56 55 WSW 10 16 3 2 649 WSW 22 12015 P  
09/19-22 81 37 15 55 57 WSW 10 16 3 2 1244 WSW 20 20815 P  
09/19-23 77 37 15 54 59 WSW 9 15 2 2 1839 WSW 17 27495 P  
09/20-00 75 15 3 53 61 WSW 9 15 2 1 2434 WSW 15 32055 P  
09/20-01 73 15 3 53 63 WSW 9 15 2 1 2040 W 15 25846 P  
09/20-02 69 15 3 52 66 WSW 10 16 3 1 1646 W 14 20030 P  
09/20-03 67 15 3 51 69 WSW 10 16 3 1 1251 W 14 14607 P  
09/20-04 62 15 3 50 67 WSW 10 16 3 1 1416 W 14 16495 P  
09/20-05 52 15 3 49 65 W 9 16 3 1 1580 WNW 14 18376 P  
09/20-06 47 4 1 49 61 W 9 15 3 1 1744 WNW 14 20250 P  
09/20-07 43 4 1 50 59 W 9 15 4 1 1899 WNW 13 21625 P  
09/20-08 34 4 1 52 55 W 9 14 4 1 2053 WNW 13 22932 P  
09/20-09 29 4 1 55 49 W 8 13 5 1 2208 WNW 13 24170 P  
09/20-10 31 4 1 59 38 WNW 6 6 5 1 3897 WNW 12 39205 P  
09/20-11 35 4 1 63 30 NW 3 3 4 1 5587 WNW 10 51236 F  
09/20-12 37 5 1 66 24 CALM 1 4 1 7276 WNW 9 60265 G  
09/20-13 34 5 1 68 21 CALM 0 4 1 7709 W 8 57049 F  
09/20-14 28 5 1 68 20 CALM 0 4 1 8141 W 8 53071 F  
09/20-15 25 5 1 68 20 CALM 1 4 1 8573 WSW 7 48330 F  
09/20-16 29 5 1 67 22 NNE 5 5 4 1 8638 SW 8 59070 F  
09/20-17 37 5 1 66 24 ENE 8 8 4 1 8704 S 9 69966 G  
09/20-18 41 8 2 64 28 E 10 16 4 1 8769 SE 10 81018 G  
09/20-19 39 8 2 61 31 E 10 17 4 1 6284 SE 12 62328 G  
09/20-20 36 8 2 58 33 E 10 16 4 1 3800 E 13 40266 F  
09/20-21 34 8 2 55 37 E 9 15 4 1 1316 E 13 14834 P  
09/20-22 36 8 2 53 41 ESE 9 14 4 1 1306 E 12 13187 P  
09/20-23 41 8 2 51 47 ESE 8 14 3 1 1297 ESE 10 11564 P  
09/21-00 43 8 2 50 52 ESE 8 13 3 1 1287 ESE 9 9962 P  
09/21-01 42 8 2 49 54 ESE 8 8 3 1 1032 SE 8 7581 P  
09/21-02 40 8 2 47 58 ESE 7 7 2 1 776 SSE 8 5400 P  
09/21-03 39 8 2 45 63 ESE 7 7 2 1 521 SSE 8 3420 P  
09/21-04 40 8 2 44 67 SE 7 7 2 1 591 SSE 9 4560 P  
09/21-05 41 8 2 43 73 SE 7 7 2 1 661 SSE 10 5861 P  
09/21-06 41 5 1 43 76 SE 7 7 2 1 731 SSE 12 7324 P  
 
KEY:  
 
FORECAST - MONTH/DAY-HOUR OF FORECAST  
VALID AT - /24-HOUR CLOCK LOCAL TIME/  
SC - SKY COVER /PERCENT/  
PP - PROBABILITY OF PRECIPITATION 0.01 INCH /PERCENT/  
WR - PROBABILITY OF WETTING RAIN 0.10 INCH /PERCENT/  
AT - TEMPERATURE /DEGREES F/  
RH - RELATIVE HUMIDITY /PERCENT/  
20-FT WIND - 20-FOOT WIND /MPH/  
GST - 20-FOOT WIND GUST /MPH/  
HI - HAINES INDEX  
LAL - LIGHTNING ACTIVITY LEVEL  
15KFT WIND - 15000 FEET ABOVE MEAN SEA LEVEL FREE-AIR WINDS /MPH/  
MIXG HGT - MIXING HEIGHT /FEET ABOVE GROUND LEVEL/  
TRANS WIND - TRANSPORT WINDS /MPH/  
VENTL RATE - VENTILATION RATE /KNOT-FEET/  
AJTV RATNG - SMOKE DISPERSION ADJECTIVE RATING  
P - POOR F - FAIR G - GOOD  
V - VERY GOOD E - EXCELLENT  
 

 
FORECASTER...ENTREKIN  
REQUESTED BY...IC- MARK LEEPER  
TYPE OF REQUEST...WILDFIRE  
.TAG 1815921.0/BOU  
 
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