339
FNUS73 KFGF 282044
FWSFGF

Spot Forecast for Horace Aluminum Phosphene Spill...ND DES
National Weather Service Grand Forks ND
344 PM CDT Fri Mar 28 2025

Forecast is based on forecast start time of 1600 CDT on March 28.
If conditions become unrepresentative, contact the National Weather
Service.

Please call the NWS in Grand Forks at 701-795-5127 for additional
information and monitor our website (www.weather.gov/fgf) or NOAA
All-Hazards Radio for the latest updates.

.DISCUSSION...

A few rain showers or drizzle early this evening, then conditions
are expected to become more dry after midnight. Temperatures are
expected to remain above freezing during the precipitation and
any rain is expected to remain liquid. Temperatures will fall
below freezing after midnight. Winds will remain from the north at
15 to 25 mph throughout the night and into Saturday.

Hysplit run can be found at:
https://www.hysplit-pub.noaa.gov/hysplitpublic-
bin/hyresults.pl?jobidno=24865

.TONIGHT...

Sky/weather.........Cloudy (85-95 percent). Rain likely early in
                    the evening, then chance of rain early in the
                    evening. Slight chance of rain late in the
                    evening.
Chance of pcpn......60 percent.
Min temperature.....Around 30.
Max humidity........92 percent.
Surface winds (mph).North winds 17 to 22 mph.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........93  94  95  94  95  91  93  90  92  91  90  89
Weather cov.....LKY CHC CHC SCH
Weather type....RN  RN  RN  RN
Tstm cov........
Chc of pcpn (%).60  50  30  20  10  10  10  0   0   0   0   0
Temp............39  38  39  38  37  36  35  35  34  34  34  33
RH..............85  88  89  89  85  89  89  89  89  89  89  89
Surface wnd dir.N   N   N   N   N   N   N   N   N   N   N   N
Surface wnd spd.17  22  22  22  22  22  17  17  17  17  17  17
Surface wnd gst.26  28  30  29  28  28  26  25  24  23  22  22

.SATURDAY...

Sky/weather.........Cloudy (85-95 percent).
Chance of pcpn......10 percent.
Max temperature.....Around 40.
Min humidity........64 percent.
Surface winds (mph).Northeast winds around 17 mph.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........89  89  92  93  90  90  90  87  86  86  87  90
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   10  10
Temp............32  32  32  31  33  35  36  37  38  39  39  39
RH..............92  85  85  85  78  72  72  70  67  67  64  67
Surface wnd dir.N   N   N   N   N   NE  NE  NE  NE  NE  NE  NE
Surface wnd spd.17  17  17  17  17  17  17  17  17  17  17  17
Surface wnd gst.22  22  23  24  24  24  24  24  24  25  25  25

.SATURDAY NIGHT...

Sky/weather.........Cloudy (90-100 percent). Chance of rain early
                    in the evening, then chance of snow early in
                    the evening.
Chance of pcpn......50 percent.
Min temperature.....Around 28.
Max humidity........88 percent.
Surface winds (mph).Northeast winds around 17 mph with gusts to
                    around 26 mph.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........92  92  93  94  95  94  93  93  92  91  91  91
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....RN  RN  SN  SN  SN  SN  SN  SN  SN  SN  SN  SN
Tstm cov........
Chc of pcpn (%).30  50  50  50  50  50  50  40  40  40  40  40
Temp............40  38  37  35  34  34  33  33  32  31  30  29
RH..............67  70  75  78  82  82  85  82  83  86  88  88
Surface wnd dir.NE  NE  NE  NE  NE  NE  N   N   N   N   N   N
Surface wnd spd.17  17  17  17  17  17  17  17  17  17  17  17
Surface wnd gst.24  24  23  23  23  23  24  24  25  26  26  26

.SUNDAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    mostly sunny (40-50 percent). Chance of snow
                    early in the morning, then slight chance of
                    snow in the morning.
Chance of pcpn......40 percent.
Max temperature.....Around 41.
Min humidity........52 percent.
Surface winds (mph).Breezy. North winds 22 to 28 mph.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........90  84  82  80  78  72  65  59  54  48  43  40
Weather cov.....CHC SCH SCH SCH SCH SCH SCH
Weather type....SN  SN  SN  SN  SN  SN  SN
Tstm cov........
Chc of pcpn (%).40  20  20  20  20  20  20  10  10  10  10  10
Temp............29  28  29  30  31  33  34  36  37  39  39  39
RH..............88  88  85  78  75  69  63  59  55  53  52  53
Surface wnd dir.N   N   N   N   N   N   N   N   N   N   N   N
Surface wnd spd.22  22  22  22  22  28  28  28  28  28  28  28
Surface wnd gst.28  28  30  31  32  33  33  33  33  33  33  33

$$
Forecaster...JR
Requested by...Watch Center
Type of request...HAZMAT
.TAG 2508358.0/FGF
.DELDT 03/28/25
.FormatterVersion 2.0.0
.EMAIL watchcenter@nd.gov