FNUS75 KBOU 042039 FWSBOU SPOT FORECAST FOR ZIMMERMAN...USFS NATIONAL WEATHER SERVICE DENVER CO 236 PM MDT FRI SEP 4 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...DAYTIME HEATING AND ENOUGH MOISTURE IN THE ATMOSPHERE HAS GENERATED SCATTERED SHOWERS AND THUNDERSTORMS THIS AFTERNOON. THESE WILL CONTINUE THROUGH 6 PM...WITH A GRADUAL DECREASE THROUGH THE EARLY EVENING HOURS WITH THE LOSS OF DAYTIME HEATING. WINDS WILL BE SPORADIC WITH THE SHOWERS AND STORMS IN THE AREA...AND MOST RAINFALL WILL BE LIGHT. WE HAVE ALREADY SEEN DAYTIME HIGHS TODAY SO TEMPERATURES SHOULD SLOWLY FALL THROUGH THE REST OF THE AFTERNOON WITH HUMIDITIES GRADUALLY IMPROVING. SIMILAR WEATHER CONDITIONS CAN BE EXPECTED SATURDAY WITH MORE SHOWERS AND STORMS IN THE AREA DURING THE AFTERNOON HOURS...AND SEASONAL TEMPERATURE AND HUMIDITY LEVELS. LITTLE CHANGE IN THE OVERALL WEATHER PATTERN IS EXPECTED THROUGH TUESDAY OF NEXT WEEK. BY WEDNESDAY...A WEAK COLD FRONT MAY BACK INTO THE AREA. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED THUNDERSTORMS UNTIL 1500...THEN SCATTERED THUNDERSTORMS. MAX TEMPERATURE.....72-74...SLOWLY FALLING TO 66-68 BY 1700. MIN HUMIDITY........19%...GRADUALLY INCREASING TO 28% BY 1700. 20-FOOT WINDS.......VARIABLE 4-10 MPH...BUT GUSTS TO 30 MPH NEAR SHOWERS AND STORMS. TRANSPORT WINDS.....NORTHWEST 8-12 MPH. MIXING HEIGHT.......12200-13200 FT AGL. SMOKE DISPERSAL.....GOOD. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2100...THEN PARTLY CLOUDY(30-40%). ISOLATED THUNDERSTORMS UNTIL 2100. MIN TEMPERATURE.....43. MAX HUMIDITY........55%. 20-FOOT WINDS.......SOUTHWEST 5-9 MPH. TRANSPORT WINDS.....SOUTHEAST 5-12 MPH UNTIL 2400...THEN SOUTHWEST 4-8 MPH. MIXING HEIGHT.......11600 FT AGL UNTIL 1900....DECREASING TO 200-1000 FT AGL BY 2300. SMOKE DISPERSAL.....GOOD UNTIL 1900...THEN FAIR UNTIL 2000...THEN POOR AFTER 2000. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY... SKY/WEATHER.........PARTLY CLOUDY(30-40%) UNTIL 1300...THEN MOSTLY CLOUDY. SCATTERED THUNDERSTORMS AFTER 1300. MAX TEMPERATURE.....71-74. MIN HUMIDITY........20-22%. 20-FOOT WINDS.......SOUTHWEST 4-6 MPH UNTIL 1000...THEN EAST 6-12 MPH. TRANSPORT WINDS.....WEST UP TO 4 MPH UNTIL 1200...THEN EAST 4-8 MPH. MIXING HEIGHT.......200-1200 FT AGL UNTIL 1000...INCREASING TO 11000-12000 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SUNDAY...MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .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. SLIGHT CHANCE OF THUNDERSTORMS UNTIL 1200...THEN CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 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 09/04-14 80 28 70 20 E 5 2 12357 NW 10 104700 V 09/04-15 82 28 68 23 E 6 10 3 4 NW12 13188 NW 9 105713 V 09/04-16 82 28 67 26 E 6 4 12634 NW 9 97378 G 09/04-17 82 28 66 30 E 5 4 12079 NW 8 89043 G 09/04-18 70 22 65 31 E 3 6 3 3 NW16 11525 NW 8 80708 G 09/04-19 70 22 63 35 E 3 3 8559 N 8 60862 G 09/04-20 70 22 59 39 SE 5 3 5592 E 9 41016 F 09/04-21 57 4 57 42 SE 6 6 3 1 NW15 2626 SE 9 21170 P 09/04-22 57 4 55 45 SE 5 1 1860 SE 8 14771 P 09/04-23 57 1 53 47 S 5 1 1094 S 8 8371 P 09/05-00 34 1 50 51 S 3 3 3 1 N14 329 S 7 1972 P 09/05-01 34 1 48 53 S 5 1 276 S 6 1540 P 09/05-02 34 1 47 54 SW 5 1 223 SW 6 1109 P 09/05-03 43 1 45 55 SW 5 5 3 1 N10 171 SW 5 678 P 09/05-04 43 1 45 54 SW 5 1 169 SW 5 657 P 09/05-05 43 1 45 53 SW 5 1 167 SW 5 635 P 09/05-06 35 5 45 54 SW 5 5 3 1 NE 6 164 SW 5 614 P 09/05-07 35 5 46 53 SW 3 1 479 W 3 723 P 09/05-08 35 5 51 46 SW 2 1 793 W 2 823 P 09/05-09 35 5 56 40 CALM 1 3 1 NE 5 1108 CALM 922 P 09/05-10 35 5 62 34 S 2 1 4196 CALM 5934 P 09/05-11 35 5 64 30 SE 2 1 7284 CALM 10945 P 09/05-12 35 5 67 27 E 3 3 3 1 CALM 10373 NE 2 15957 P 09/05-13 71 30 69 25 E 5 4 10996 E 2 17070 P 09/05-14 71 30 70 24 E 6 4 11618 SE 2 18182 P 09/05-15 71 30 71 22 E 8 8 3 4 W 8 12241 SE 2 19294 P 09/05-16 71 30 70 24 SE 8 4 11618 S 2 25854 P 09/05-17 71 30 69 27 SE 8 4 10996 S 3 32414 P 09/05-18 71 30 69 28 S 13 13 3 4 W 6 10301 S 8 70595 G 09/05-19 71 30 65 32 S 10 4 8301 S 9 62711 G 09/05-20 71 30 61 36 S 8 4 6300 S 12 54828 F 09/05-21 71 30 58 39 S 7 7 2 4 NE 5 4299 S 13 46944 F 09/05-22 71 30 56 43 SW 7 4 3177 S 12 34066 P 09/05-23 71 30 55 46 SW 7 4 2054 SW 12 21187 P 09/06-00 55 0 52 51 SW 8 8 2 1 SE12 931 SW 10 8308 P 09/06-01 55 0 49 55 SW 8 1 695 SW 9 6025 P 09/06-02 55 0 47 57 SW 7 1 458 SW 8 3741 P 09/06-03 55 0 46 57 SW 7 7 3 1 S14 221 SW 8 1458 P 09/06-04 55 0 46 58 SW 7 1 215 SW 8 1524 P 09/06-05 55 0 45 57 SW 8 1 209 SW 9 1591 P 09/06-06 55 0 45 58 SW 8 8 3 1 S10 203 SW 9 1657 P 09/06-07 55 0 47 56 SW 8 1 1308 SW 10 14245 P 09/06-08 55 0 50 52 SW 8 1 2414 SW 12 26834 P 09/06-09 55 0 55 46 SW 8 8 2 1 S18 3519 SW 13 39423 P 09/06-10 55 0 59 41 SW 8 1 5002 SW 13 51985 F 09/06-11 55 0 61 38 SW 9 1 6485 SW 12 64547 G 09/06-12 77 30 64 35 SW 9 9 2 4 S21 7967 SW 12 77109 G 09/06-13 77 30 65 34 SW 9 4 8400 SW 12 83519 G 09/06-14 77 30 66 33 SW 8 4 8834 SW 12 89928 G 09/06-15 77 30 67 33 SW 8 8 2 4 SW17 9267 SW 12 96338 G 09/06-16 77 30 66 34 SW 8 4 8880 SW 12 89153 G 09/06-17 77 30 65 37 SW 9 4 8493 SW 12 81968 G 09/06-18 77 30 65 39 SW 9 9 2 4 SW13 8106 SW 10 74782 G 09/06-19 77 30 61 44 SW 9 4 6482 SW 10 60213 G 09/06-20 77 30 58 47 SW 8 4 4858 SW 10 45643 F 09/06-21 77 30 56 48 SW 8 8 2 4 W10 3234 SW 12 31074 P 09/06-22 77 30 54 49 SW 8 4 2315 SW 12 22519 P 09/06-23 77 30 53 49 SW 9 4 1396 SW 13 13964 P 09/07-00 56 0 50 53 SW 9 9 2 1 NW 8 477 SW 13 5409 P 09/07-01 56 0 48 56 SW 9 1 399 SW 13 4553 P 09/07-02 56 0 47 59 SW 10 1 321 W 14 3696 P 09/07-03 56 0 45 63 SW 10 10 2 1 W 6 243 W 14 2840 P 09/07-04 56 0 45 64 SW 10 1 231 W 13 2561 P 09/07-05 56 0 45 65 SW 9 1 219 W 12 2281 P 09/07-06 56 0 45 67 SW 9 9 2 1 NW 5 207 W 12 2001 P 09/07-07 56 0 46 62 SW 9 1 1224 W 12 11861 P 09/07-08 56 0 50 53 W 9 1 2242 W 12 21721 P 09/07-09 56 0 55 43 W 9 9 2 1 NW 9 3259 W 12 31582 P 09/07-10 56 0 60 37 W 9 1 4952 W 12 53149 F 09/07-11 56 0 62 33 W 10 1 6645 W 13 74717 G 09/07-12 70 28 65 31 W 10 10 2 4 NW 7 8338 W 14 96285 G 09/07-13 70 28 66 29 W 12 4 8794 W 13 97130 G 09/07-14 70 28 67 28 W 13 4 9251 W 13 97975 G 09/07-15 70 28 68 27 W 13 13 2 4 W 6 9707 W 12 98820 G 09/07-16 70 28 68 28 W 10 4 9298 W 12 96067 G 09/07-17 70 28 66 29 SW 7 4 8890 W 13 93313 G 09/07-18 70 28 66 30 SW 2 2 2 4 W12 8482 W 13 90559 G 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...WFO BOULDER REQUESTED BY...GARY BATCHELDER REASON FOR REQUEST...WILDFIRE .TAG 20090904.ZIMME.01/BOU