FNUS75 KBOU 051829 FWSBOU SPOT FORECAST FOR ZIMMERMAN...USFS NATIONAL WEATHER SERVICE DENVER CO 1211 PM MDT SAT SEP 5 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...VERY LIGHT FLOW ALOFT ATTRIBUTED TO A LARGE NEARLY STATIONARY HIGH PRESSURE RIDGE OVER THE REGION WILL DOMINATE THE REGIONS WEATHER FOR THE NEXT 24 HOURS. BECAUSE OF THIS LIGHT FLOW... ANY THUNDERSTORMS THAT MANAGE TO FORM THIS AFTERNOON WILL BE ESPECIALLY SLOW MOVING. ISOLATED STORMS SHOULD FORM FIRST OVER THE CONTINENTAL DIVIDE BEFORE DRIFTING VERY SLOWLY EAST-NORTHEASTWARD OVER THE NORTHERN FRONT RANGE FOOTHILLS. LITTLE RAINFALL IS ANTICIPATED WITH THESE ISOLATED STORM CELLS...HOWEVER THEY MAY GENERATE GUSTY DOWNBURST WINDS AND OCCASIONAL LIGHTNING. STORMS SHOULD DISSIPATE BY SUNSET. FOR SUNDAY...WE COULD SEE A REPEAT OF TODAY'S WEATHER ALTHOUGH SLIGHTLY STRONGER SOUTHWESTERLY TRANSPORT WINDS WILL MOVE STORMS ALONG AT A FASTER CLIP. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........PARTLY CLOUDY(30-45%). ISOLATED MOSTLY DRY THUNDERSTORMS UNTIL 1500...THEN WIDELY SCATTERED THUNDERSTORMS. MAX TEMPERATURE.....71-76. MIN HUMIDITY........22-27%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1500...THEN SOUTHEAST AROUND 8 MPH. TRANSPORT WINDS.....SOUTHWEST 2-7 MPH. MIXING HEIGHT.......RISING TO 11200-12200 FT AGL BY 1600. SMOKE DISPERSAL.....POOR UNTIL 1300...THEN GOOD AFTER 1500. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (50-60% UNTIL 2100...THEN CLEARING. ISOLATED GUSTY THUNDERSTORMS UNTIL 2030. MIN TEMPERATURE.....43-48. MAX HUMIDITY........58-64%. 20-FOOT WINDS.......SOUTHEAST 5-10 MPH UNTIL 1900...THEN DOWNSLOPE/DOWNVALLEY 2-8 MPH UNTIL 2400...THEN SOUTHWEST 8-13 MPH. TRANSPORT WINDS.....SOUTHWEST 5-10 MPH. MIXING HEIGHT.......10600 FT AGL UNTIL 1900..LOWERING TO 400-900 FT AGL AFTER 2300. SMOKE DISPERSAL.....GOOD UNTIL 2000 THEN POOR AFTER 2100. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SUNDAY... SKY/WEATHER.........PARTLY CLOUDY(30%) IN THE MORNING... THEN BECOMING MOSTLY CLOUDY WITH WIDELY SCATTERED THUNDERSTORMS AFTER 1330. MAX TEMPERATURE.....71-77. MIN HUMIDITY........26-32%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....SOUTHWEST 7-13 MPH. MIXING HEIGHT.......1400-2400 FT AGL UNTIL 1000. 8800-9800 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 1100. GOOD AFTER 1200. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .LABOR DAY...MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .TUESDAY...MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .WEDNESDAY...PARTLY CLOUDY. CHANCE OF THUNDERSTORMS UNTIL 0600... THEN SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR ZIMMERMAN. +++ DATA IN THE FOLLOWING TABLE HAS BEEN SAMPLED DIRECTLY FROM THE DIGITAL DATABASE. VALUES IN THE TABLE MAY NOT AGREE WITH INFORMATION IN THE NARRATIVE FORECAST. INFORMATION CONTAINED IN THIS TABLE SHOULD NOT BE CONSIDERED AN OFFICIAL FORECAST. PLEASE PROVIDE FEEDBACK IF THE INFORMATION IN THIS TABLE HAS BEEN REPRESENTATIVE AND/OR USEFUL. +++ FORECAST SC PP TF RH 20FT G H L 10K MIXG TRAN VENTL AJTV VALID AT % % F % WIND S I A WIND HGT WIND RATE RATNG MPH T L MPH AGL MPH KT-FT 09/05-12 60 10 67 27 E 3 3 3 2 SW 3 10389 SE 2 18402 P 09/05-13 60 10 69 25 E 5 2 11093 SE 3 35300 P 09/05-14 60 10 70 24 E 6 2 11796 S 5 52199 F 09/05-15 74 30 71 22 E 8 8 3 4 W 6 12500 S 7 69097 G 09/05-16 74 30 70 23 SE 8 4 11890 S 7 72269 G 09/05-17 74 30 69 24 SE 8 4 11279 S 8 75441 G 09/05-18 73 20 69 26 S 13 13 2 3 S 3 10669 S 8 78613 G 09/05-19 73 20 65 29 S 10 3 8263 S 9 63910 G 09/05-20 73 20 61 33 S 8 3 5858 S 10 49208 F 09/05-21 73 20 58 39 S 7 7 2 3 W 6 3452 S 12 34506 P 09/05-22 73 0 56 43 SW 7 1 2383 S 10 23655 P 09/05-23 73 0 55 46 SW 7 1 1315 SW 10 12805 P 09/06-00 54 0 52 51 SW 8 8 3 1 SW 2 246 SW 9 1954 P 09/06-01 54 0 49 55 SW 8 1 232 SW 9 1785 P 09/06-02 54 0 47 57 SW 7 1 218 SW 8 1616 P 09/06-03 76 0 46 57 SW 7 7 2 1 SE 5 204 SW 8 1447 P 09/06-04 76 0 46 58 SW 7 1 201 SW 8 1445 P 09/06-05 76 0 45 57 SW 8 1 199 SW 8 1444 P 09/06-06 70 0 45 58 SW 7 7 2 1 S 9 196 W 8 1442 P 09/06-07 70 0 47 56 W 7 1 1133 W 8 7874 P 09/06-08 70 0 50 52 W 7 1 2070 W 8 14305 P 09/06-09 62 0 55 45 W 7 7 2 1 SW12 3006 W 8 20736 P 09/06-10 62 0 60 40 SW 6 1 4717 SW 8 33337 P 09/06-11 62 0 62 37 SW 5 1 6427 S 8 45938 F 09/06-12 77 30 64 34 S 3 3 2 4 SW12 8137 S 8 58538 F 09/06-13 77 30 66 33 S 3 4 8803 S 8 60547 G 09/06-14 77 30 67 32 SW 3 4 9469 S 8 62556 G 09/06-15 77 30 68 32 SW 3 3 2 4 S14 10135 SW 7 64565 G 09/06-16 77 30 67 33 SW 5 4 9596 SW 8 67469 G 09/06-17 77 30 66 36 SW 6 4 9058 SW 9 70374 G 09/06-18 77 30 66 37 SW 7 7 2 4 SW16 8519 SW 10 73278 G 09/06-19 77 30 62 42 SW 7 4 6882 SW 9 57792 F 09/06-20 77 30 59 46 SW 7 4 5244 SW 9 42306 F 09/06-21 77 30 56 48 SW 8 8 2 4 W 7 3606 S 8 26820 P 09/06-22 77 30 55 48 SW 8 4 2604 SW 9 19899 P 09/06-23 77 30 53 49 SW 8 4 1602 SW 10 12978 P 09/07-00 77 30 50 52 SW 8 8 2 4 NW 6 600 SW 12 6058 P 09/07-01 68 0 48 55 SW 8 1 476 SW 10 4635 P 09/07-02 68 0 47 59 SW 8 1 352 SW 10 3213 P 09/07-03 68 0 46 63 SW 8 8 2 1 NW 8 228 W 9 1790 P 09/07-04 68 0 45 64 SW 8 1 217 W 9 1668 P 09/07-05 68 0 45 65 SW 7 1 207 W 8 1546 P 09/07-06 68 0 45 66 W 8 8 2 1 N 9 197 W 8 1424 P 09/07-07 56 0 46 62 W 7 1 1313 W 9 12330 P 09/07-08 56 0 51 52 W 7 1 2430 W 10 23235 P 09/07-09 56 0 56 42 W 7 7 2 1 N 7 3546 W 12 34141 P 09/07-10 56 0 60 36 W 7 1 5177 W 10 43302 F 09/07-11 56 0 63 32 W 7 1 6808 W 9 52462 F 09/07-12 69 30 65 30 W 7 7 2 4 W 3 8439 W 8 61623 G 09/07-13 69 30 67 28 W 7 4 8876 W 8 63970 G 09/07-14 69 30 68 27 W 7 4 9313 W 8 66317 G 09/07-15 69 30 69 26 W 7 7 2 4 W 8 9751 W 8 68663 G 09/07-16 69 30 69 27 W 7 4 9321 W 9 71009 G 09/07-17 69 30 67 29 W 7 4 8892 W 9 73355 G 09/07-18 69 30 67 29 W 7 7 2 4 W12 8463 W 10 75701 G 09/07-19 69 30 63 33 W 7 4 6444 W 10 58045 F 09/07-20 69 30 59 37 SW 7 4 4425 SW 10 40389 F 09/07-21 69 30 57 40 SW 7 7 2 4 W17 2406 SW 10 22733 P 09/07-22 69 30 55 42 SW 7 4 1690 SW 10 15830 P 09/07-23 69 30 53 44 SW 8 4 973 SW 9 8927 P 09/08-00 60 0 50 48 SW 8 8 2 1 W18 256 SW 9 2024 P 09/08-01 60 0 48 51 SW 8 1 228 SW 9 1796 P 09/08-02 60 0 47 53 SW 7 1 199 SW 9 1567 P 09/08-03 60 0 46 55 SW 8 8 2 1 W20 171 SW 9 1338 P 09/08-04 60 0 45 56 SW 7 1 172 SW 9 1350 P 09/08-05 60 0 45 56 SW 8 1 173 SW 9 1361 P 09/08-06 60 0 45 57 SW 8 8 2 1 W16 173 SW 9 1373 P 09/08-07 60 0 46 57 SW 9 1 09/08-08 60 0 50 52 SW 9 1 09/08-09 60 0 54 45 W 9 9 1 09/08-10 60 0 58 37 SW 8 1 09/08-11 60 0 61 33 SW 7 1 09/08-12 72 28 63 29 SW 7 7 09/08-13 72 28 64 27 SW 6 09/08-14 72 28 65 27 SW 5 09/08-15 72 28 66 26 SW 3 3 09/08-16 72 28 65 27 SW 2 09/08-17 72 28 64 28 CALM 09/08-18 72 28 64 30 CALM 0 KEY: FORECAST - MONTH/DAY-HOUR OF FORECAST /24-HOUR CLOCK LOCAL TIME/ VALID AT SC - SKY COVER /PERCENT/ PP - PROBABILITY OF PRECIPITATION /PERCENT/ TF - TEMPERATURE /DEGREES F/ RH - RELATIVE HUMIDITY /PERCENT/ 20FT WIND - 20-FOOT WIND /MPH/ GST - 20-FOOT WIND GUST /MPH/ HI - HAINES INDEX LAL - LIGHTNING ACTIVITY LEVEL 10K WIND - 10000 FEET ABOVE GROUND LEVEL FREE-AIR WINDS /MPH/ MIXG HGT - MIXING HEIGHT /FEET ABOVE GROUND LEVEL/ TRAN 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...BAKER...WFO BOULDER REQUESTED BY...GARY BATCHELDER REASON FOR REQUEST...WILDFIRE .TAG 20090905.ZIMME.01/BOU