FNUS73 KOAX 191100 FWSOAX SPOT FORECAST FOR FOLSOM POINT...POTTAWATTAMIE COUNTY CONSERVATION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 600 AM CDT TUE MAY 19 2009 FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON MAY 19. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... WINDY CONDITIONS WILL PREVAIL TODAY WITH A STRONG SOUTH WIND INCREASING TO 25 TO 30 MPH BY LATE MORNING...WITH GUSTS AS HIGH AS 40 MPH THROUGH THE AFTERNOON. A WIND ADVISORY IS IN EFFECT FOR THE AREA FROM NOON THROUGH 8 PM...AND THE GRASSLAND FIRE DANGER INDEX IS IN THE VERY HIGH CATEGORY DUE TO MINIMUM RELATIVE HUMIDITIES DROPPING TO THE UPPER 20S THROUGH PEAK HEATING. NEARLY IDENTICAL CONDITIONS ARE FORECAST FOR WEDNESDAY...HOWEVER THE FRONT SHOULD EASE SOUTHWARD INTO THE AREA WEDNESDAY NIGHT WITH A THREAT FOR THUNDERSTORMS BY DAYBREAK THURSDAY. IT WILL BE COOLER WITH A DAILY THREAT FOR RAIN THURSDAY THROUGH SUNDAY. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). MAX TEMPERATURE.....81 AT IGNITION...MAX 86. MIN HUMIDITY........33 PERCENT AT IGNITION...MIN 28 PERCENT. 20-FOOT WINDS.......WINDS SOUTH AT 24 MPH AT IGNITION...OTHERWISE BREEZY. SOUTH WINDS 12 TO 21 MPH INCREASING TO 23 TO 26 MPH LATE IN THE MORNING. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 5. MIXING HEIGHT.......300-2100 FT AGL INCREASING TO 2700-4000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 17 TO 26 MPH INCREASING TO 28 TO 36 MPH IN THE LATE MORNING AND AFTERNOON. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........8 6 6 0 4 3 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............58 67 75 81 85 86 RH..............77 55 41 33 28 28 20 FT WIND......S 12 S 16 S 21 S 24 S 26 S 26 20 FT WIND GUST.15 25 30 35 35 35 HAINES INDEX....4 4 4 5 5 5 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT). MIN TEMPERATURE.....MIN 61. MAX HUMIDITY........MAX 75 PERCENT. 20-FOOT WINDS.......BREEZY. SOUTH WINDS 17 TO 25 MPH. GUSTS UP TO 30 MPH AFTER MIDNIGHT. HAINES INDEX........4 TO 5 OR OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2800-3800 FT AGL DECREASING TO 500-1800 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....SOUTH 28 TO 36 MPH DECREASING TO AROUND 26 MPH EARLY IN THE MORNING. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........6 6 7 7 8 8 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............84 76 71 67 64 62 RH..............36 46 54 61 67 73 20 FT WIND......S 25 S 23 S 21 S 18 S 17 S 17 20 FT WIND GUST.35 30 30 30 25 25 HAINES INDEX....5 4 4 4 4 4 .WEDNESDAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). MAX TEMPERATURE.....MAX 86. MIN HUMIDITY........MIN 28 PERCENT. 20-FOOT WINDS.......BREEZY. SOUTH WINDS 20 TO 28 MPH. HAINES INDEX........4 TO 5 OR OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......400-2100 FT AGL INCREASING TO 2400-3800 FT AGL IN THE LATE MORNING AND AFTERNOON. TRANSPORT WINDS.....SOUTH 29 TO 37 MPH INCREASING TO 39 TO 43 MPH IN THE LATE MORNING AND AFTERNOON. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........8 8 8 8 12 16 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............61 69 76 82 85 86 RH..............75 57 44 37 28 28 20 FT WIND......S 20 S 23 S 26 S 28 S 28 S 28 20 FT WIND GUST.30 30 35 35 35 35 HAINES INDEX....4 4 4 5 5 5 .FORECAST DAYS 3 THROUGH 5... .THURSDAY... NOT AS WARM. MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS AROUND 60. HIGHS IN THE LOWER 70S. SOUTH WINDS AROUND 14 MPH. .FRIDAY... MOSTLY CLOUDY WITH SCATTERED THUNDERSTORMS AND CHANCE OF SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 70S. NORTHEAST WINDS AROUND 9 MPH. .SATURDAY... MOSTLY CLOUDY. SCATTERED THUNDERSTORMS AND CHANCE OF SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S. EAST WINDS AROUND 7 MPH. $$ FORECASTER...NWS OMAHA/VALLEY REQUESTED BY...CHAD GRAEVE TYPE OF REQUEST...PRESCRIBED .TAG 20090519.FOLSO.01/OAX