Text Products for FWS Issued by ARX

Spot Forecast
Issued by NWS La Crosse, WI
Versions: 1 2 3 4 5 6 7 8 9 10
000
FNUS73 KARX 240901
FWSARX

Spot Forecast for Lawrence Creek North Rx burn...Wisconsin DNR
National Weather Service La Crosse WI
401 AM CDT Wed Apr 24 2024

Forecast is based on ignition time of 0900 CDT on April 24.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (608) 784-8292 if you have questions
or concerns with this forecast.

.DISCUSSION...High pressure moves overhead of the burn site today
with the winds decreasing through the day to around 5 mph or less.
The max temp will climb into the mid 50s with minimum RH values
falling to around 20% by this afternoon. Skies will remain clear
with fair RH recovery tonight. High pressure drifts east on
Thursday as winds increase from the southeast around 10 to 15 mph.
Temps will climb into the low 60s with minimum RH falling in the
low to mid 20% range.


.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Temperature.........35 at ignition...Max 54.
RH..................54 percent at ignition...Min 22 percent.
Wind (20 ft)........Winds northeast at 6 mph at
                    ignition...otherwise Northeast winds 5 to 6 mph
                    in the late morning and early afternoon
                    becoming light.
Mixing height.......2500 ft AGL at ignition...otherwise 4100 ft AGL
                    increasing to 5000 ft AGL late in the
                    afternoon.
Transport winds.....Northeast 5 to 13 mph shifting to the north
                    around 6 mph late in the afternoon.
Smoke dispersal.....Fair /27100 knot-ft/ at ignition. Max...fair
                    /27100 knot-ft/.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth at ignition...max 5.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........4   4   3   3   2   2   2   2   2
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0
Temp............35  40  43  46  49  52  52  54  54
RH..............54  42  36  31  26  24  24  22  23
20 FT wind dir..NE  NE  NE  NE  NE  E   E   E   E
20 FT wind spd..6   6   6   5   5   4   4   4   4
20 FT wind gust.12  11  9   8   7   6   5   5   5
Mix hgt (kft)...2.5 2.7 3.1 3.6 4.1 4.6 4.9 5.0 5.0
Transp wind dir.NE  NE  NE  NE  NE  NE  NE  NE  N
Transp wind spd.13  10  9   7   7   6   6   5   6
Haines index....5   5   5   5   5   5   5   5   5
SDspl kt-ft/100027  24  25  22  25  23  24  20  25

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent). Widespread frost
                    overnight.
CWR.................0 percent.
Temperature.........Min 27.
RH..................Max 72 percent.
Wind (20 ft)........Light winds becoming southeast around 5 mph
                    overnight, then becoming light overnight.
Mixing height.......3400 ft AGL decreasing to 300 ft AGL early in
                    the evening.
Transport winds.....South around 6 mph shifting to the southeast 7
                    to 12 mph early in the evening.
Smoke dispersal.....Fair (24900 knot-ft) early in the evening
                    decreasing to poor (2400 knot-ft) late in the
                    night.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........3      8      17     22     22     19
Weather cov.....                            WIDSPD WIDSPD
Weather type....NONE   NONE   NONE   NONE   FROST  FROST
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............53     48     41     36     32     30
RH..............25     33     46     59     69     69
20 ft wind......E 4    SE 4   SE 3   SE 4   SE 4   SE 3
20 ft wind gust.6      8      9      11     11     8
Mix hgt (ft)....5000   600    400    400    400    300
Transport wind..SW 6   SE 7   SE 10  S 12   S 10   S 9
Haines index....5      5      5      5      5      5
SDspl kt-ft/100025     4      4      4      4      3

.THURSDAY...

Sky/weather.........Sunny (5-15 percent). Widespread frost early in
                    the morning.
CWR.................0 percent.
Temperature.........Max 61.
RH..................Min 23 percent.
Wind (20 ft)........Light winds becoming southeast 5 to 10 mph in
                    the late morning and afternoon.
Mixing height.......2100 ft AGL increasing to 4800 ft AGL late in
                    the morning.
Transport winds.....Southeast 8 to 16 mph.
Smoke dispersal.....Poor (2300 knot-ft) early in the morning
                    increasing to excellent (67500 knot-ft) in the
                    afternoon.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........10     5      4      4      5      8
Weather cov.....WIDSPD
Weather type....FROST  NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............28     34     47     54     58     61
RH..............75     58     38     30     26     23
20 ft wind......SE 3   SE 4   SE 6   SE 8   SE 9   SE 10
20 ft wind gust.7      8      11     13     14     14
Mix hgt (ft)....300    800    2100   3900   4600   4800
Transport wind..S 8    S 9    S 8    SE 10  SE 13  S 16
Haines index....5      5      5      5      5      5
SDspl kt-ft/10002      7      15     35     50     68

$$
Forecaster...JAW
Requested by...Jon Robaidek
Type of request...PRESCRIBED
.TAG 2412046.0/ARX
.DELDT 04/24/24
.FormatterVersion 2.0.0
.EMAIL jon.robaidek@wisconsin.gov
National Weather Service Weather Forecast Office
