FNUS73 KDLH 041720 FWSDLH SPOT FORECAST FOR TICK POPPER 21...USFS NATIONAL WEATHER SERVICE DULUTH MN 1220 PM CDT WED APR 4 2012 FORECAST IS BASED ON IGNITION TIME OF 1220 CDT ON APRIL 04. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... VERY DRY HUDSON BAY HIGH IS BUILDING TOWARD AND OVER LAKE SUPERIOR. THE DRY AIR IS ALLOWING INLAND TEMPERATURES TO RISE RAPIDLY UNDER COMPLETELY CLEAR SKIES. THE PRESSURE GRADIENT IS STILL WEAK SO WINDS WILL NOT COME UP VERY MUCH UNTIL LATER THIS AFTERNOON. THE SAME BASIC WEATHER PATTERN...WITH COMPLETELY CLEAR SKIES WILL CONTINUE THURSDAY. AT THAT TIME...THE HUDSON BAY HIGH WILL HAVE HAD TIME TO ESTABLISH STRONG HIGH PRESSURE OVER LAKE SUPERIOR...WITH RAPIDLY WARMING INLAND TEMPERATURES ENHANCING INCREASINGLY STRONG ONSHORE WINDS THURSDAY AFTERNOON. TONIGHT... CLEAR SKIES AND DRY AIR WILL ALLOW RAPID COOLING THIS EVENING WHICH WILL CUT OFF THE WINDFLOW AND RESULT IN POOR SMOKE DISPERSION. .TODAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....56-60. MIN HUMIDITY........24 PERCENT. WIND (20 FT)........NORTHEAST WINDS 4 TO 8 MPH INCREASING TO 9 TO 10 MPH IN THE AFTERNOON. MIXING HEIGHT.......1000 FT AGL INCREASING TO 3000 FT AGL LATE IN THE MORNING...THEN INCREASING TO 4000 FT AGL EARLY IN THE AFTERNOON DECREASING TO 2900 FT AGL LATE IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH BECOMING NORTHEAST IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....POOR (5800) INCREASING TO GOOD (32000) LATE IN THE MORNING...THEN INCREASING TO GOOD (45000) EARLY IN THE AFTERNOON DECREASING TO GOOD (37600) LATE IN THE AFTERNOON. TIME (CDT) NOON 2 PM 4 PM 6 PM TEMP............46 54 57 56 RH..............34 27 25 25 20 FT WIND DIR..NE NE NE NE 20 FT WIND SPD..7 9 9 9 20 FT WIND GUST.10 14 14 14 .TONIGHT... SKY/WEATHER.........CLEAR. AREAS OF FROST AFTER MIDNIGHT. MIN TEMPERATURE.....25-30. MAX HUMIDITY........85 PERCENT. WIND (20 FT)........EAST WINDS 5 TO 9 MPH. MIXING HEIGHT.......1100 FT AGL DECREASING TO 300 FT AGL IN THE LATE EVENING AND OVERNIGHT. TRANSPORT WINDS.....EAST 10 TO 15 MPH. SMOKE DISPERSAL.....FAIR (13900) DECREASING TO POOR (1800) IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM TEMP............49 42 38 34 31 29 RH..............30 41 50 61 72 81 20 FT WIND DIR..NE NE NE E E E 20 FT WIND SPD..8 7 6 5 5 5 20 FT WIND GUST.13 10 8 7 6 6 .THURSDAY... SKY/WEATHER.........SUNNY. AREAS OF FROST EARLY IN THE MORNING. MAX TEMPERATURE.....43-48. MIN HUMIDITY........34 PERCENT. WIND (20 FT)........NORTHEAST WINDS 6 TO 10 MPH INCREASING TO 11 TO 13 MPH IN THE AFTERNOON. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM TEMP............28 33 39 43 45 45 RH..............85 66 48 39 35 35 20 FT WIND DIR..E NE NE NE NE NE 20 FT WIND SPD..5 7 9 10 11 12 20 FT WIND GUST.7 10 14 16 18 21 $$ FORECASTER...PETER REQUESTED BY...STEVE RADAJ TYPE OF REQUEST...PRESCRIBED .TAG 20120404.TICKP.01/DLH