587
FNUS73 KGRB 220921
FWSGRB
SPOT FORECAST FOR TATANKA...USFS
NATIONAL WEATHER SERVICE GREEN BAY WI
421 AM CDT WED APR 22 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS OR CONCERNS WITH
THIS FORECAST.
DISCUSSION
HIGH PRESSURE TRACKS THROUGH THE REGION TODAY. RHS WILL DROP INTO
THE 20 TO 30 PERCENT RANGE WITH TEMPERATURES TRENDING MUCH WARMER
INLAND FROM LAKE MICHIGAN. ANYONE PLANNING BURNS NEAR LAKE
MICHIGAN OR THE BAY THE NEXT COUPLE DAYS SHOULD EXPECT LAKE
BREEZES TO DEVELOP IN THE LATE MORNING AND AFTERNOON. LAKE BREEZES
WILL BRING COOLER TEMPERATURES, ONSHORE WINDS (E-SE), HIGHER RH
AND POOR SMOKE DISPERSAL TO LAKESHORE AREAS.
THURSDAY WILL BE THE WINDIEST DAY OF THE WEEK, WITH SOUTH WINDS
FORECAST TO GUST 20 TO 30 MPH. THE NEXT ROUND OF WIDESPREAD RAIN
AND THUNDERSTORMS COMES THURSDAY NIGHT INTO FRIDAY.
REST OF TODAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 68.
MIN HUMIDITY........20 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH AROUND 5 MPH LATE IN
THE AFTERNOON.
MIXING HEIGHT.......3400 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 14 MPH.
SMOKE DISPERSAL.....POOR (1600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (37200 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........2 1 1 1 11 13 9 10 17 13 6
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............36 42 47 54 59 62 66 67 68 68 68
RH..............67 55 45 36 30 26 22 21 20 21 22
20 FT WIND DIR..SE SE SE SE S S S S S S S
20 FT WIND SPD..1 1 2 2 3 3 4 5 5 5 5
20 FT WIND GUST.5 5 6 8 9 11 12 13 13 14 13
MIX HGT (KFT)...0.4 0.6 1.1 1.8 2.3 2.5 3.0 3.2 3.4 3.4 3.1
TRANSP WIND DIR.SE SE SE SE S S S S S S S
TRANSP WIND SPD.5 6 7 7 7 7 7 8 10 13 14
SDSPL KT-FT/10002 3 7 11 14 15 18 23 31 37 37
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT).
MIN TEMPERATURE.....AROUND 44.
MAX HUMIDITY........79 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS AROUND 5 MPH EARLY IN THE
EVENING BECOMING LIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....SOUTH 13 TO 15 MPH.
SMOKE DISPERSAL.....GOOD (33400 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (5200 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........9 5 9 15 24 33 34 50 48 54 61 56
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............66 64 58 54 52 50 48 46 46 45 45 46
RH..............26 29 37 43 46 50 51 53 53 60 65 68
20 FT WIND DIR..S S SE SE SE SE SE SE SE S S S
20 FT WIND SPD..5 5 5 5 4 4 4 4 4 4 4 4
20 FT WIND GUST.14 14 14 14 14 14 14 14 14 14 14 14
MIX HGT (KFT)...2.6 0.8 0.6 0.7 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.S S S S S S S S S S S S
TRANSP WIND SPD.15 13 13 14 14 13 13 14 15 15 13 13
SDSPL KT-FT/100033 9 7 8 7 5 5 6 7 7 6 6
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........43 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 10 MPH. GUSTS UP TO 25 MPH IN
THE LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......4300 FT AGL.
TRANSPORT WINDS.....SOUTH 14 TO 22 MPH INCREASING TO 22 TO 25 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (6000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (93500 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........58 61 57 55 53 53 52 52 42 33 23 28
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............46 47 51 55 59 64 67 71 73 74 75 74
RH..............73 79 77 72 67 60 56 51 48 46 43 44
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..5 5 5 5 6 7 8 9 9 9 10 9
20 FT WIND GUST.14 14 15 16 18 19 20 21 22 22 23 22
MIX HGT (KFT)...0.5 0.5 1.1 1.5 1.8 2.2 2.7 3.1 3.7 4.2 4.3 3.5
TRANSP WIND DIR.S S S S S S S S S S S S
TRANSP WIND SPD.14 14 16 17 18 20 21 22 24 25 25 22
SDSPL KT-FT/10006 6 16 22 28 37 48 59 78 92 94 67
FORECASTER...KURIMSKI
REQUESTED BY...CHAD HOWARD
TYPE OF REQUEST...PRESCRIBED
.TAG 2610970.1/GRB
.DELDT 04/22/26
.FORMATTERVERSION 2.0.0
.EMAIL CHAD.HOWARD@USDA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page