622
FNUS73 KDLH 041934
FWSDLH
SPOT FORECAST FOR BIRCH BAY FIRE...USFS
NATIONAL WEATHER SERVICE DULUTH MN
234 PM CDT THU JUN 4 2026
FORECAST IS BASED ON FORECAST START TIME OF 1800 CDT ON JUNE 04.
IF THERE ARE QUESTIONS OR CONCERNS WITH THIS FORECAST, OR IF
CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL
WEATHER SERVICE IN DULUTH AT 218-729-0653.
DISCUSSION
SCATTERED SHOWERS AND STORMS ARE DEVELOPING TO THE WEST OF THE
FIRE, AND ARE CURRENTLY MOVING NORTHEAST INTO CANADA. THESE ARE
EXPECTED TO REMAIN TO THE NORTHWEST OF THE FIRE UNTIL LATER ON IN
THE AFTERNOON. CURRENT TRAJECTORY SUGGESTS THAT THE STORMS WILL
ARRIVE AFTER 6 PM, BUT WOULDN'T BE SURPRISED IF A STORM OR TWO
POPPED UP FURTHER EAST AND REACHED THE FIRE AT 4-5 PM. SHORT
PERIODS OF HEAVY RAIN, PEA SIZED HAIL, AND ERRATIC, GUSTY WINDS
ARE EXPECTED WITH THESE STORMS. CONDITIONS FOR FRIDAY WILL BE
SIMILAR, BUT RAIN SHOWERS AND STORMS WILL BE WEAKER TOMORROW, AND
MAY STAY TO THE SOUTH COMPLETELY.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
MOSTLY CLOUDY (60-70 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING.
CHANCE OF PCPN......40 PERCENT.
MIN TEMPERATURE.....AROUND 54.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 6 MPH EARLY IN THE EVENING
BECOMING LIGHT. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS EARLY IN THE
EVENING. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS EARLY IN THE EVENING.
MIXING HEIGHT.......4300 FT AGL DECREASING TO 1600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 6 TO 12 MPH.
SMOKE DISPERSAL.....GOOD (43100 KNOT-FT) DECREASING TO POOR TO FAIR
(2100-13100 KNOT-FT).
PCPN AMOUNT.........0.12 INCHES.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......PC PC PC MC MC MC MC MC MC MC MC MC
WEATHER COV.....CHC CHC CHC CHC SCH SCH
WEATHER TYPE....RW RW RW RW RW RW
TSTM COV........CHC SCH SCH SCH
CHC OF PCPN (%).40 30 30 30 20 20 10 10 10 0 0 0
TEMP............76 75 71 67 64 62 61 60 58 57 56 55
RH..............56 60 68 78 84 90 93 93 96 96 96 100
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW W SW
20 FT WIND SPD..6 5 4 3 3 3 3 3 2 2 2 2
20 FT WIND GUST.14 13 9 8 8 7 6 6 6 5 6 6
MIX HGT (KFT)...4.3 1.6 0.9 0.5 0.5 0.4 0.4 0.4 0.5 0.4 0.4 0.4
TRANSP WIND DIR.W SW SW SW SW SW SW SW SW SW W W
TRANSP WIND SPD.12 9 8 8 7 7 6 7 8 8 7 7
SDSPL KT-FT/100043 13 6 4 3 3 2 3 3 3 2 2
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 81.
MIN HUMIDITY........38 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 7 MPH IN THE
LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......1900 FT AGL INCREASING TO 5900 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 16 MPH INCREASING TO 17 TO 18 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO FAIR (2300-15200 KNOT-FT) INCREASING TO
EXCELLENT (75200-91000 KNOT-FT).
PCPN AMOUNT.........0.01 INCHES.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY COVER.......MCLDY PCLDY PCLDY PCLDY MCLDY PCLDY
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0
TEMP............56 63 72 77 78 80
RH..............100 84 57 45 42 38
20 FT WIND......W 2 W 2 W 4 W 6 W 7 NW 7
20 FT WIND GUST.6 6 9 13 14 15
MIX HGT (FT)....400 1000 2900 5200 5400 5700
TRANSPORT WIND..W 7 W 7 W 10 W 15 W 16 W 17
SDSPL KT-FT/10002 6 26 68 75 85
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
MOSTLY CLEAR (5-15 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........96 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 6 MPH IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......5000 FT AGL DECREASING TO 500 FT AGL.
TRANSPORT WINDS.....NORTHWEST 8 TO 17 MPH DECREASING TO 5 TO 7 MPH
OVERNIGHT.
SMOKE DISPERSAL.....EXCELLENT (75600 KNOT-FT) DECREASING TO POOR
(1600-6800 KNOT-FT).
PCPN AMOUNT.........0.00 INCHES.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......PC PC PC PC MCR MCR MCR CLR CLR CLR CLR MCR
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............78 76 72 67 63 61 59 57 55 54 53 52
RH..............40 45 51 61 70 75 80 83 86 90 89 96
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW W W
20 FT WIND SPD..6 6 5 4 4 3 3 3 3 2 3 2
20 FT WIND GUST.14 14 12 9 9 9 8 7 6 6 6 5
MIX HGT (KFT)...5.0 2.4 1.2 0.8 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.5
TRANSP WIND DIR.NW NW N NW NW NW NW NW NW NW NW NW
TRANSP WIND SPD.17 15 12 10 10 9 9 8 7 6 5 5
SDSPL KT-FT/100076 31 12 7 5 4 4 3 3 2 2 2
SATURDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........29 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST AROUND 5 MPH
LATE IN THE MORNING, THEN BECOMING LIGHT LATE
IN THE AFTERNOON.
MIXING HEIGHT.......1900 FT AGL INCREASING TO 6400 FT AGL.
TRANSPORT WINDS.....NORTHWEST 3 TO 10 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (1800-20200 KNOT-FT) INCREASING TO
FAIR TO GOOD (28800-38600 KNOT-FT) LATE IN THE
MORNING, THEN INCREASING TO GOOD (44400-54400
KNOT-FT) LATE IN THE AFTERNOON DECREASING TO
GOOD (33300 KNOT-FT) LATE IN THE AFTERNOON.
PCPN AMOUNT.........0.00 INCHES.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......PC PC PC MCR CLR CLR CLR CLR CLR CLR MCR CLR
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............53 56 61 67 73 77 79 80 82 83 84 85
RH..............93 90 78 63 49 42 38 36 33 31 30 29
20 FT WIND DIR..W W NW NW NW NW NW NW NW NW NW NW
20 FT WIND SPD..2 1 1 2 3 4 4 4 4 3 3 3
20 FT WIND GUST.5 5 5 5 7 8 9 9 9 9 8 7
MIX HGT (KFT)...0.5 0.7 1.9 2.7 3.4 4.1 4.8 5.4 6.0 6.4 6.3 5.5
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW N
TRANSP WIND SPD.5 3 6 7 7 8 9 10 10 9 8 7
SDSPL KT-FT/10002 2 10 16 20 29 39 49 54 52 44 33
FORECASTER...KRYSTAL
REQUESTED BY...JEB BACKE
TYPE OF REQUEST...WILDFIRE
.TAG 2614806.7/DLH
.DELDT 06/04/26
.FORMATTERVERSION 2.0.0
.EMAIL BRINKMANJ@STLOUISCOUNTYMN.GOV,JAYEA@STLOUISCOUNTYMN.GOV,JEB.BACKE@USDA.GOV,BENJAMIN_EVANS@FIRENET.GOV
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