000 FNUS53 KDTX 032029 FWFDTX FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST MICHIGAN NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 407 PM EDT FRI APR 3 2009 .DISCUSSION... A LOW PRESSURE SYSTEM WILL SLIDE NORTHEASTWARD TONIGHT ACROSS PORTIONS OF ONTARIO AND QUEBEC. WEAK SURFACE RIDGING WILL TRANSLATE ACROSS THE GREAT LAKES ON SATURDAY. ANOTHER STRONG LOW PRESSURE SYSTEM WILL DEVELOP OVER COLORADO...TRACKING ACROSS THE OHIO RIVER VALLEY SUNDAY NIGHT. MIZ047-048-053-060-061-041300- MIDLAND-BAY-SAGINAW-SHIAWASSEE-GENESEE- INCLUDING THE CITIES OF...MIDLAND-BAY CITY-SAGINAW-OWOSSO-FLINT 407 PM EDT FRI APR 3 2009 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT) UNTIL ABOUT 4 AM...THEN BECOMING PARTLY CLOUDY (50-60 PERCENT). AREAS OF DRIZZLE THROUGH ABOUT 7 PM. MIN TEMPERATURE.....29-34. 24 HR TREND......8 DEGREES COOLER. MAX HUMIDITY........89-99 PERCENT. 24 HR TREND......2 PERCENT DRIER. 20-FOOT WINDS.......NORTHWEST 15 TO 20 MPH. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2500-2700 FT AGL. TRANSPORT WINDS.....NORTHWEST 35 TO 40 MPH. VENTILATION INDEX...EXCELLENT (670). PCPN AMOUNT.........0.06-0.10 IN. .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). MAX TEMPERATURE.....43-48. 24 HR TREND......6 DEGREES WARMER. MIN HUMIDITY........44-49 PERCENT. 24 HR TREND......39 PERCENT DRIER. 20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3060-3560 FT AGL. TRANSPORT WINDS.....NORTHWEST 25 TO 30 MPH. VENTILATION INDEX...EXCELLENT (800). PCPN AMOUNT.........NONE. .SATURDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT). MIN TEMPERATURE.....AROUND 30. 24 HR TREND......3 DEGREES COOLER. MAX HUMIDITY........75-85 PERCENT. 24 HR TREND......23 PERCENT DRIER. 20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH...BECOMING NORTH LATE AT NIGHT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......910-1110 FT AGL. TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH...BECOMING NORTHEAST AROUND 10 MPH LATE AT NIGHT. VENTILATION INDEX...POOR (70). PCPN AMOUNT.........NONE. .SUNDAY... SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). A CHANCE OF RAIN OR SNOW BY 11 AM THROUGH 2 PM...THEN RAIN AND SNOW LIKELY. POP...60 PERCENT. MAX TEMPERATURE.....39-44. 24 HR TREND......6 DEGREES COOLER. MIN HUMIDITY........57-62 PERCENT. 24 HR TREND......14 PERCENT WETTER. 20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1740-2240 FT AGL. TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH...INCREASING TO AROUND 20 MPH EARLY IN THE EVENING. VENTILATION INDEX...GOOD (420). PCPN AMOUNT.........0.26-0.50 IN. $$ MIZ049-054-055-062-041300- HURON-TUSCOLA-SANILAC-LAPEER- INCLUDING THE CITIES OF...BAD AXE-CARO-SANDUSKY-LAPEER 407 PM EDT FRI APR 3 2009 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) UNTIL ABOUT 6 AM...THEN BECOMING PARTLY CLOUDY (50-60 PERCENT). RAIN THROUGH ABOUT 7 PM. A CHANCE OF SNOW AND AREAS OF DRIZZLE THROUGH ABOUT 10 PM. A CHANCE OF RAIN AFTER ABOUT 7 PM THROUGH ABOUT 10 PM. POP...100 PERCENT. MIN TEMPERATURE.....30-35. 24 HR TREND......7 DEGREES COOLER. MAX HUMIDITY........98 PERCENT. 24 HR TREND......UNCHANGED. 20-FOOT WINDS.......NORTHWEST 20 TO 25 MPH. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1910-2110 FT AGL. TRANSPORT WINDS.....NORTHWEST 40 TO 45 MPH...DECREASING TO AROUND 35 MPH LATE AT NIGHT. VENTILATION INDEX...EXCELLENT (690). PCPN AMOUNT.........0.26-0.50 IN. .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). MAX TEMPERATURE.....42-47. 24 HR TREND......4 DEGREES WARMER. MIN HUMIDITY........47-57 PERCENT. 24 HR TREND......35 PERCENT DRIER. 20-FOOT WINDS.......NORTHWEST 15 TO 20 MPH...DIMINISHING TO AROUND 10 MPH EARLY IN THE EVENING. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2840-3340 FT AGL. TRANSPORT WINDS.....NORTHWEST 30 TO 35 MPH. VENTILATION INDEX...EXCELLENT (890). PCPN AMOUNT.........NONE. .SATURDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). MIN TEMPERATURE.....26-31. 24 HR TREND......5 DEGREES COOLER. MAX HUMIDITY........78-88 PERCENT. 24 HR TREND......13 PERCENT DRIER. 20-FOOT WINDS.......NORTH 5 TO 10 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1220-1420 FT AGL. TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH...BECOMING NORTH AROUND 10 MPH LATE AT NIGHT. VENTILATION INDEX...POOR (90). PCPN AMOUNT.........NONE. .SUNDAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). A CHANCE OF RAIN OR SNOW BY 11 AM THROUGH 2 PM...THEN RAIN AND SNOW LIKELY. POP...60 PERCENT. MAX TEMPERATURE.....37-42. 24 HR TREND......3 DEGREES COOLER. MIN HUMIDITY........60-70 PERCENT. 24 HR TREND......11 PERCENT WETTER. 20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1530-2030 FT AGL. TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH. VENTILATION INDEX...FAIR (250). PCPN AMOUNT.........0.11-0.25 IN. $$ MIZ063-068>070-075-076-082-083-041300- ST CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE- INCLUDING THE CITIES OF... PORT HURON-HOWELL-PONTIAC-WARREN-ANN ARBOR-DETROIT-ADRIAN-MONROE 407 PM EDT FRI APR 3 2009 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) UNTIL ABOUT 4 AM...THEN BECOMING PARTLY CLOUDY (50-60 PERCENT). AREAS OF DRIZZLE THROUGH ABOUT 7 PM. MIN TEMPERATURE.....31-36. 24 HR TREND......13 DEGREES COOLER. MAX HUMIDITY........88-98 PERCENT. 24 HR TREND......2 PERCENT DRIER. 20-FOOT WINDS.......NORTHWEST 20 TO 25 MPH...DIMINISHING TO 15 TO 20 MPH AFTER MIDNIGHT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2290-2490 FT AGL. TRANSPORT WINDS.....NORTHWEST 40 TO 45 MPH...DECREASING TO AROUND 35 MPH LATE AT NIGHT. VENTILATION INDEX...GOOD (510). PCPN AMOUNT.........0.11-0.25 IN. .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....44-49. 24 HR TREND......1 DEGREE WARMER. MIN HUMIDITY........42-50 PERCENT. 24 HR TREND......31 PERCENT DRIER. 20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH...DIMINISHING TO AROUND 5 MPH EARLY IN THE EVENING. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3080-3580 FT AGL. TRANSPORT WINDS.....NORTHWEST 25 TO 30 MPH. VENTILATION INDEX...EXCELLENT (880). PCPN AMOUNT.........NONE. .SATURDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). MIN TEMPERATURE.....AROUND 30. 24 HR TREND......2 DEGREES COOLER. MAX HUMIDITY........79-89 PERCENT. 24 HR TREND......24 PERCENT DRIER. 20-FOOT WINDS.......NORTHWEST 5 TO 10 MPH...BECOMING NORTH LATE AT NIGHT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......980-1180 FT AGL. TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH...BECOMING NORTHEAST AROUND 10 MPH LATE AT NIGHT. VENTILATION INDEX...POOR (30). PCPN AMOUNT.........NONE. .SUNDAY... SKY/WEATHER.........PARTLY CLOUDY (60-70 PERCENT) UNTIL NOON...THEN BECOMING CLOUDY (85-95 PERCENT). A CHANCE OF RAIN OR SNOW BY 11 AM THROUGH 2 PM...THEN RAIN LIKELY. POP...70 PERCENT. MAX TEMPERATURE.....42-47. 24 HR TREND......3 DEGREES COOLER. MIN HUMIDITY........55-62 PERCENT. 24 HR TREND......10 PERCENT WETTER. 20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1430-1930 FT AGL. TRANSPORT WINDS.....EAST AROUND 10 MPH...BECOMING NORTHEAST AROUND 20 MPH EARLY IN THE EVENING. VENTILATION INDEX...GOOD (420). PCPN AMOUNT.........0.51-0.75 IN. $$ .FORECAST DAYS 3 THROUGH 7... .MONDAY...SNOW AND RAIN. LOWS AROUND 30. HIGHS IN THE UPPER 30S. NORTH WINDS AROUND 15 MPH. .TUESDAY...MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE UPPER 30S. NORTHWEST WINDS AROUND 15 MPH. .WEDNESDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND SNOW SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S. WEST WINDS AROUND 10 MPH. .THURSDAY...PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S. .FRIDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND SNOW. LOWS IN THE MID 30S. HIGHS IN THE LOWER 40S. $$ BT