FNUS73 KMPX 281254 FWSMPX SPOT FORECAST FOR ST CROIX SAVANNA SNA...MN DNR NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 754 AM CDT WED APR 28 2010 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 28. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A LARGE AREA OF LOW PRESSURE IS EXPECTED TO DEVELOP ACROSS THE PLAINS TODAY AND CAUSE SOUTHEAST WINDS TO INCREASE BY AFTERNOON...AND CONTINUE THROUGH THURSDAY BEFORE A FRONTAL BOUNDARY MOVES CLOSER TO THE AREA...AND THE PRESSURE GRADIENT LESSENS. LOW HUMIDITY VALUES WILL LIKELY ACCOMPANY THE SOUTHEAST WINDS AND CREATE DANGEROUS FIRE WEATHER CONDITIONS. INCREASING MOISTURE BY LATER TONIGHT...AND INTO THURSDAY WILL SLOWLY MODIFY HUMIDITY LEVELS... ALONG WITH A CHANCE OF PRECIPITATION. .TODAY... SKY/WEATHER.........MOSTLY SUNNY. TEMPERATURE.........51 AT IGNITION...MAX 68. MIN HUMIDITY........34 PERCENT AT IGNITION...MIN 21 PERCENT. WIND (20 FT)........WINDS SOUTHEAST AT 8 MPH AT IGNITION...OTHERWISE SOUTHEAST WINDS 10 TO 15 MPH. HAINES INDEX........5 OR MODERATE AT IGNITION...MAX 5. SMOKE DISPERSAL.....POOR TO GOOD (2600-45600) INCREASING TO EXCELLENT (105700-110200). MIXING HEIGHT.......300-2000 FT AGL INCREASING TO 7000-8200 FT AGL. MIXING WINDS........SOUTH 13 TO 21 MPH. TIME (CDT) 8 AM 10 AM NOON 2 PM 4 PM 6 PM SKY (%).........CLEAR MCLEAR MCLEAR MCLEAR PCLDY PCLDY WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............41 51 60 65 68 67 RH..............47 34 25 22 21 25 20 FT WIND......SE 5 SE 7 SE 10 S 12 S 14 SE 14 20 FT WIND GUST. 10 15 20 20 25 HAINES INDEX....5 5 5 5 4 4 .TONIGHT... MAX HUMIDITY........68 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 11 TO 16 MPH WITH GUSTS TO AROUND 25 MPH. .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF PRECIPITATION 20 PERCENT. MAX TEMPERATURE.....71. MIN HUMIDITY........46 PERCENT. WIND (20 FT)........SOUTH WINDS 17 TO 22 MPH. $$ FORECASTER...RICHARDSON REQUESTED BY...RUSS SMITH TYPE OF REQUEST...PRESCRIBED .TAG 20100428.STCRO.01/MPX