289
FNUS73 KDLH 141039
FWSDLH
SPOT FORECAST FOR NWS BLOCK I...USFS
NATIONAL WEATHER SERVICE DULUTH MN
539 AM CDT THU MAY 14 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 CDT ON MAY 14.
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.
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
FRIDAY EVENING...
DISCUSSION
SOUTHERLY WINDS WILL BE GUSTY TODAY AHEAD OF A WARM FRONTAL
PASSAGE LATE THIS AFTERNOON TO EARLY OVERNIGHT. THE SOUTHERLY
WINDS SHOULD GUST TO 20 MPH THIS AFTERNOON. THE LAKE BREEZE
BOUNDARY SHOULD STAY CLOSE TO THE LAKE SUPERIOR SHORELINE, WITH
THE ASSOCIATED NORTHEAST WIND STAYING NORTHWEST OF THE BURN SITE.
RH VALUES TO DROP TO AROUND 29 PERCENT FOR SEVERAL HOURS THIS
AFTERNOON. THE INCOMING WARM FRONT SHOULD BRING IN ADDITIONAL
MOISTURE AND HELP KEEP RH VALUES FROM GETTING ANY DRIER DURING THE
LATE AFTERNOON AND EVENING.
SCATTERED HIGH-BASED RAIN SHOWERS AND AN ISOLATED THUNDERSTORM
PASS OVERHEAD TONIGHT. MOST PLACES MAY SEE A TRACE TO A FEW
HUNDREDTHS OF AN INCH OF RAINFALL, BUT A FEW LUCKY SPOTS GET A
TENTH TO MAYBE A QUARTER-INCH. EXPECT GUSTY AND ERRATIC WINDS NOT
ONLY NEAR THUNDERSTORMS LATE TODAY, BUT ALSO NEAR ANY RAIN SHOWERS
GIVEN THE HIGH-BASED NATURE OF THESE SHOWERS AND DRY AIR BELOW.
DANGEROUS FIRE WEATHER CONDITIONS ARE AHEAD FOR FRIDAY. A FIRE
WEATHER WATCH IS IN EFFECT FOR FRIDAY ACROSS NEARLY THE ENTIRE
NORTHLAND. WEST WINDS ON FRIDAY WILL BE SUSTAINED 10 TO 20 MPH AND
GUST UP TO 30 MPH WITH RELATIVE HUMIDITY VALUES DROPPING AS LOW
AS 24 PERCENT.
TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........29 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 12 MPH WITH
GUSTS TO AROUND 20 MPH.
MIXING HEIGHT.......1500 FT AGL INCREASING TO 5100 FT AGL.
TRANSPORT WINDS.....SOUTH 10 TO 18 MPH INCREASING TO 20 TO 25 MPH
IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO FAIR (3800-18900 KNOT-FT) INCREASING TO
EXCELLENT (63500-101900 KNOT-FT).
PCPN AMOUNT.........0.00 INCHES.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......CLR CLR MCR MCR MCR MCR MCR PC PC PC PC PC
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............44 42 48 53 59 62 65 67 69 69 71 70
RH..............67 70 61 52 45 39 35 32 30 31 29 31
20 FT WIND DIR..SE SE S S S S S S S S S S
20 FT WIND SPD..3 3 4 5 7 8 8 9 10 10 11 10
20 FT WIND GUST.8 11 11 12 14 14 15 16 18 18 19 20
MIX HGT (KFT)...0.4 0.4 0.7 1.5 2.5 4.0 4.8 5.0 5.0 5.1 4.7 4.5
TRANSP WIND DIR.S S S S S S S S S S S S
TRANSP WIND SPD.10 10 13 15 16 18 18 20 21 22 23 25
SDSPL KT-FT/10004 4 8 19 37 64 77 87 97 98 94 102
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT). CHANCE OF RAIN
SHOWERS EARLY IN THE EVENING. SLIGHT CHANCE OF
RAIN SHOWERS LATE IN THE EVENING.
CHANCE OF PCPN......40 PERCENT.
MIN TEMPERATURE.....AROUND 57.
MAX HUMIDITY........67 PERCENT.
WIND (20 FT)........SOUTH WINDS 9 TO 16 MPH. GUSTS UP TO 31 MPH
INCREASING TO 32 MPH OVERNIGHT.
MIXING HEIGHT.......3000 FT AGL DECREASING TO 900 FT AGL EARLY IN
THE EVENING.
TRANSPORT WINDS.....SOUTH 20 TO 28 MPH.
SMOKE DISPERSAL.....GOOD TO EXCELLENT (54800-67700 KNOT-FT)
DECREASING TO POOR TO FAIR (12500-25300
KNOT-FT).
PCPN AMOUNT.........0.03 INCHES.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY COVER.......MCLDY CLOUDY MCLDY MCLDY MCLDY PCLDY
WEATHER COV..... CHANCE S CHC S CHC
WEATHER TYPE....NONE RNSHWR RNSHWR RNSHWR NONE NONE
TSTM COV........
CHC OF PCPN (%).0 40 20 20 10 0
TEMP............68 62 59 58 58 58
RH..............35 47 61 67 60 63
20 FT WIND......S 10 S 10 S 12 S 13 S 16 S 15
20 FT WIND GUST.20 22 26 28 29 28
MIX HGT (FT)....3000 900 900 900 800 800
TRANSPORT WIND..S 22 S 22 S 23 S 26 S 28 SW 24
SDSPL KT-FT/100068 16 18 21 20 17
FRIDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 81.
MIN HUMIDITY........24 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 12 TO 15 MPH WITH GUSTS TO
AROUND 28 MPH.
MIXING HEIGHT.......2200 FT AGL INCREASING TO 5600 FT AGL LATE IN
THE MORNING, THEN INCREASING TO 8900 FT AGL
LATE IN THE AFTERNOON DECREASING TO 6900 FT AGL
LATE IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 22 TO 30 MPH INCREASING TO WEST 36 TO
38 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO GOOD (12000-32400 KNOT-FT) INCREASING
TO GOOD (40900 KNOT-FT) LATE IN THE MORNING, THEN
INCREASING TO EXCELLENT (268300-317800 KNOT-FT)
EARLY IN THE AFTERNOON DECREASING TO EXCELLENT
(214600-246400 KNOT-FT).
PCPN AMOUNT.........0.00 INCHES.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY COVER.......MCLEAR MCLEAR MCLEAR CLEAR CLEAR MCLEAR
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0
TEMP............57 62 67 75 78 77
RH..............64 56 49 32 26 24
20 FT WIND......S 15 SW 13 SW 12 SW 13 SW 13 W 13
20 FT WIND GUST.27 25 23 27 27 28
MIX HGT (FT)....700 1600 2200 5600 8900 7800
TRANSPORT WIND..SW 22 SW 23 SW 22 W 30 W 38 W 36
SDSPL KT-FT/100014 32 42 152 318 246
FORECASTER...LINDA
REQUESTED BY...ANDREW NELSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2613441.3/DLH
.DELDT 05/14/26
.FORMATTERVERSION 2.0.0
.EMAIL ANDREW.L.NELSON@USDA.GOV
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