FNUS75 KBOU 061640 FWSBOU SPOT FORECAST FOR VERSITROL SPILL...COUNTY NATIONAL WEATHER SERVICE DENVER CO 1040 AM MDT THU MAY 6 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN UPPER LEVEL WEATHER DISTURBANCE WILL BE MOVING OVER COLORADO TODAY WITH MODERATE TO STRONG SOUTHWESTERLY FLOW ALOFT. AT LOWER LEVELS...A COLD FRONT WILL BE MOVING FROM THE NORTHERN COLORADO BORDER TO CENTRAL COLORADO THROUGH THE AFTERNOON HOURS. AT THE SURFACE...A SURFACE LOW WILL REMAIN OVER SOUTHEASTERN COLORADO THROUGH TONIGHT. SOUTHWESTERLY SURFACE WINDS LATE THIS MORNING WILL BE CHANGING TO NORTHERLY AFTER THE COLD FRONT MOVES THROUGH. AFTERNOON SHOWERS WILL ALSO DEVELOP...ASSOCIATED WITH THE FRONT AND PASSING UPPER LEVEL WEATHER SYSTEM. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........PARTLY CLOUDY(30-40%) UNTIL 1300 THEN MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN OR SNOW SHOWERS AND ISOLATED THUNDERSTORMS AFTER 1400. MAX TEMPERATURE.....52-58. MIN HUMIDITY........16-24%. WIND (20 FT)........BREEZY. SOUTHWEST WINDS 16-24 MPH WITH GUSTS TO 30 MPH. WINDS SHIFTING TO NORTH 18-26 MPH BETWEEN 1200 AND 1500. TRANSPORT WINDS.....WEST 32-40 MPH UNTIL 1200...THEN 40-48 MPH. MIXING HEIGHT.......3500-4000 FT AGL UNTIL 1100. 9500-10000 FT AGL AFTER 1200. SMOKE DISPERSAL.....VERY GOOD UNTIL 1100. EXCELLENT AFTER 1400. HAINES INDEX........2 VERY LOW. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 2400...THEN A SLIGHT CHANCE OF SNOW SHOWERS. MIN TEMPERATURE.....24-30. MAX HUMIDITY........68-76%. WIND (20 FT)........NORTHWEST WINDS 14-22 MPH WITH GUSTS TO 30 MPH UNTIL 2000...THEN 8-14 MPH UNTIL 2400...THEN DOWNSLOPE/DOWNVALLEY 4-10 MPH. TRANSPORT WINDS.....WEST 28-36 MPH UNTIL 2100...THEN LIGHT. MIXING HEIGHT.......9000 FT AGL UNTIL 1900...THEN DROPPING TO 500-1000 FT AGL. SMOKE DISPERSAL.....EXCELLENT UNTIL 1900. POOR AFTER 2100. HAINES INDEX........2 VERY LOW. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%). MAX TEMPERATURE.....48-54. MIN HUMIDITY........20-28%. WIND (20 FT)........UPSLOPE/UPVALLEY 4-10 MPH UNTIL 0900...THEN SOUTHWEST 12-20 MPH WITH GUSTS TO 30 MPH. TRANSPORT WINDS.....SOUTHWEST 12-20 MPH UNTIL 1200...THEN WEST 28-36 MPH. MIXING HEIGHT.......500-1000 FT AGL UNTIL 1000...THEN RISING TO 8500-9000 FT AGL AFTER 1300. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN FAIR UNTIL 1200...THEN EXCELLENT AFTER 1400. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AFTER 1200. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 50S. SOUTH WINDS AROUND 9 MPH WITH GUSTS TO AROUND 20 MPH. .SUNDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 60S. SOUTHWEST WINDS AROUND 13 MPH WITH GUSTS TO AROUND 35 MPH. .MONDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS AFTER 0600 UNTIL 1200. SLIGHT CHANCE OF THUNDERSTORMS AFTER 0600. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS AROUND 13 MPH WITH GUSTS TO AROUND 30 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR VERSITROL SPILL. +++ 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 05/06-10 17 1 51 22 SW 22 1 3722 W 31 141382 V 05/06-11 17 1 53 21 W 25 1 6512 W 39 264575 E 05/06-12 23 10 55 19 W 28 41 2 2 W70 9302 W 48 387768 E 05/06-13 23 10 56 18 W 28 2 9829 W 48 414062 E 05/06-14 20 10 57 17 W 28 2 10356 W 48 440356 E 05/06-15 20 10 58 16 W 26 40 2 2 W73 10883 W 49 466650 E 05/06-16 17 10 58 16 W 26 2 10347 W 49 445265 E 05/06-17 17 10 57 17 W 26 2 9810 W 49 423879 E 05/06-18 67 30 54 18 W 24 37 2 1 W70 9274 W 49 402493 E 05/06-19 67 30 51 21 W 20 1 7427 W 43 300003 E 05/06-20 67 30 47 26 W 14 1 5581 W 36 197514 E 05/06-21 67 30 42 33 W 9 14 2 1 W67 3734 W 29 95025 G 05/06-22 67 30 38 39 W 6 1 2654 W 22 64374 G 05/06-23 67 30 36 45 W 5 1 1573 W 15 33724 P 05/07-00 70 20 33 50 W 3 3 2 1 W67 493 W 7 3074 P 05/07-01 70 20 32 54 W 3 1 471 W 6 2598 P 05/07-02 70 20 30 58 S 3 1 448 S 6 2122 P 05/07-03 70 20 28 62 S 3 3 2 1 W71 426 S 5 1646 P 05/07-04 70 20 28 66 S 3 1 478 S 6 2380 P 05/07-05 70 20 28 68 S 3 1 530 SW 7 3115 P 05/07-06 58 2 28 69 S 3 3 2 1 W70 583 SW 8 3850 P 05/07-07 58 2 30 61 S 5 1 2003 SW 12 28450 P 05/07-08 58 2 32 53 SW 6 1 3423 W 15 53051 F 05/07-09 58 2 36 43 SW 8 8 2 1 W71 4844 W 18 77651 G 05/07-10 58 2 40 35 SW 10 1 6193 W 22 124116 V 05/07-11 58 2 44 30 SW 12 1 7439 W 25 168071 E 05/07-12 49 4 46 26 SW 14 21 2 1 W69 8684 W 28 212026 E 05/07-13 49 4 48 25 SW 16 1 8950 W 30 234849 E 05/07-14 49 4 49 24 W 18 1 9217 W 32 257672 E 05/07-15 49 6 49 23 W 18 28 2 1 W62 9484 W 35 280495 E 05/07-16 49 6 50 23 W 17 1 9168 W 33 266882 E 05/07-17 49 6 49 24 W 15 1 8852 W 33 253269 E 05/07-18 53 6 47 26 W 12 17 2 1 W58 8536 W 32 239656 E 05/07-19 53 6 46 30 SW 9 1 6442 SW 23 163154 E 05/07-20 53 6 42 37 S 7 1 4348 SW 14 86652 G 05/07-21 53 6 39 45 SE 5 5 2 1 W52 2255 S 6 10150 P 05/07-22 53 6 37 51 1 2240 S 8 15044 P 05/07-23 53 6 35 56 1 2224 S 10 19937 P 05/08-00 53 5 34 60 SE 8 13 2 1 W58 2209 S 13 24830 P 05/08-01 53 5 32 63 SE 9 1 2221 S 14 26431 P 05/08-02 53 5 31 65 S 10 1 2232 S 15 28032 P 05/08-03 53 5 30 66 S 12 18 2 1 W63 2244 S 15 29633 P 05/08-04 53 5 30 66 S 12 1 2178 S 15 27860 P 05/08-05 53 5 29 66 S 12 1 2112 S 14 26087 P 05/08-06 53 5 30 65 S 10 16 2 1 W61 2045 S 14 24315 P 05/08-07 53 5 31 62 S 9 1 3058 S 15 43981 F 05/08-08 53 5 37 50 S 9 1 4071 SW 17 63647 G 05/08-09 53 5 42 41 S 8 13 2 1 W55 5084 SW 18 83314 G 05/08-10 53 5 47 34 S 8 1 6750 SW 24 154493 E 05/08-11 53 5 51 30 S 8 1 8415 W 29 225672 E 05/08-12 66 10 55 26 S 8 13 2 1 W55 10081 W 33 296851 E 05/08-13 66 10 57 25 SW 8 1 10582 W 32 292976 E 05/08-14 66 10 58 25 SW 8 1 11084 W 30 289102 E 05/08-15 66 10 58 25 SW 8 13 2 1 W51 11585 SW 29 285228 E 05/08-16 66 10 58 26 S 8 1 11308 SW 29 284101 E 05/08-17 66 10 58 27 S 9 1 11032 SW 30 282975 E 05/08-18 66 10 57 28 S 9 15 2 1 W53 10756 SW 30 281848 E 05/08-19 66 10 54 29 S 8 1 8600 SW 25 207997 E 05/08-20 66 10 50 32 SE 7 1 6444 SW 21 134145 V 05/08-21 66 10 46 35 SE 6 6 3 1 W58 4289 SW 16 60294 G 05/08-22 66 10 43 39 SE 6 1 3684 SW 14 47324 F 05/08-23 66 10 41 45 S 6 1 3079 S 12 34353 P 05/09-00 45 0 39 50 S 6 6 3 1 W56 2474 S 10 21383 P 05/09-01 45 0 37 55 S 6 1 2072 S 9 17284 P 05/09-02 45 0 36 60 S 5 1 1671 SW 9 13185 P 05/09-03 45 0 34 65 SW 5 5 3 1 W53 1270 SW 8 9086 P 05/09-04 45 0 34 68 SW 3 1 1112 SW 9 8340 P 05/09-05 45 0 34 69 W 3 1 955 W 9 7594 P 05/09-06 45 0 34 70 W 3 3 3 1 SW43 797 W 10 6849 P 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 $$ DANKERS...WFO BOULDER REQUESTED BY...PARK COUNTY DISPATCH REASON FOR REQUEST...HAZMAT .TAG 20100506.VERSI.01/BOU