140
FNUS73 KBIS 131651
FWSBIS

Spot Forecast for Lake Nettie...USFWS
National Weather Service Bismarck ND
1151 AM CDT Tue May 13 2025

Forecast is based on ignition time of 0900 CDT on May 13.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

At the moment, winds are generally light and variable, with relative
humidity values around 38 percent. Humidity will fall to under 30
percent through the next few hours, reaching a minimum value around
24 percent by late afternoon. Wind speeds will increase to around 10
to 15 mph by late afternoon, becoming more established out of the west
at the same time, before finally shifting to the north by around 7 PM CDT.
A mostly sunny sky is expected throughout the day, with a high temperature
near 90. Chances for showers and thunderstorms will begin to
increase tonight.

.REST OF TODAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 89.
Min humidity........24 percent.
Wind (20 ft)........Light winds becoming west 10 to 15 mph late in
                    the afternoon.
Mixing height.......6300 ft AGL.
Transport winds.....Southwest 13 to 15 mph shifting to the
                    northwest around 14 mph late in the afternoon.
Smoke dispersal.....Fair (46600 knot-ft) early in the morning
                    increasing to good (75700 knot-ft) in the
                    afternoon.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........34  39  42  39  35  33
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0
Temp............77  78  82  89  89  88
RH..............37  36  30  24  24  24
20 FT wind dir..W   W   W   W   W   NW
20 FT wind spd..2   1   5   13  14  14
20 FT wind gust.10  9   13  20  20  20
Mix hgt (kft)...3.6 4.1 4.7 5.4 6.1 6.3
Transp wind dir.SW  SW  SW  W   W   NW
Transp wind spd.15  14  14  13  14  14
Dispr kt-ft/1K..47  49  56  60  73  76

.TONIGHT...

Sky/weather.........Increasing clouds. Scattered showers and a
                    slight chance of thunderstorms overnight.
CWR.................0 percent increasing to 13 percent after 3 am.
Chance of pcpn......40 percent.
Chance of thunder...31 percent.
Min temperature.....Around 58.
Max humidity........78 percent.
Wind (20 ft)........North winds around 10 to 15 mph in the evening,
                    shifting to the northeast around 10 to 15 mph
                    overnight. Gusty and erratic winds possible near
                    thunderstorms.
Mixing height.......800 ft AGL.
Transport winds.....North 15 to 21 mph shifting to the northeast 20
                    to 21 mph overnight.
Smoke dispersal.....Good (81400 knot-ft) early in the evening
                    decreasing to poor (13700 knot-ft) late in the
                    night.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........34     41     67     69     82     72
Weather cov.....       ISOLTD SCTTRD SCTTRD ISOLTD SCTTRD
Weather type....NONE   RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........                                   SCTTRD
CWR.............0      0      0      0      0      10
Chc of pcpn (%).10     20     30     30     20     40
Chc of thdr (%).0      10     10     10     10     30
Temp............87     81     73     69     66     62
RH..............26     32     41     45     52     62
20 ft wind......NW 14  N 13   N 12   N 12   NE 12  NE 12
20 ft wind gust.20     19     19     18     18     18
Mix hgt (ft)....6300   3500   900    900    800    800
Transport wind..NW 15  N 15   N 17   N 21   NE 20  NE 20
Dispr kt-ft/1K..81     46     14     16     14     14

.WEDNESDAY...

Sky/weather.........Partly to mostly cloudy. Showers likely with a
                    slight chance of thunderstorms in the morning.
                    Then showers with scattered thunderstorms in
                    the afternoon.
CWR.................18 percent increasing to 81 percent in the
                    afternoon.
Chance of pcpn......80 percent.
Chance of thunder...47 percent.
Max temperature.....Around 79.
Min humidity........43 percent.
Wind (20 ft)........North to east winds around 10 to 15 mph. Gusty
                    and erratic winds possible near thunderstorms.
Mixing height.......4500 ft AGL.
Transport winds.....Northeast 17 to 23 mph.
Smoke dispersal.....Poor (16100 knot-ft) early in the morning
                    increasing to good (71300 knot-ft) in the
                    afternoon.

TIME (CDT)      6 AM         10 AM        2 PM
Sky (%).........81           49           56
Weather cov.....NUMRUS       LIKELY       DEFNTE
Weather type....RNSHWR       RNSHWR       RNSHWR
Tstm cov........SCTTRD       S CHC        CHANCE
CWR.............10           20           80
Chc of pcpn (%).60           60           80
Chc of thdr (%).30           20           40
Temp............60           65           76
RH..............69           60           43
20 FT wind......N 12G17      NE 12G18     E 15G20
Mix hgt (ft)....900          1700         4500
Transport wind..NE 21        NE 20        E 17
Dispr kt-ft/1K..16           29           68

$$
Forecaster...BESSON
Requested by...D. Mireles
Type of request...PRESCRIBED
.TAG 2513859.0/BIS
.DELDT 05/13/25
.FormatterVersion 2.0.0
.EMAIL dustin_mireles@fws.gov