Spot Forecast
Issued by NWS Twin Cities, MN

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080
FNUS73 KMPX 231255
FWSMPX

Spot Forecast for Vermillion Rx...MN DNR
National Weather Service Twin Cities/Chanhassen MN
755 AM CDT Thu May 23 2024

Forecast is based on ignition time of 0800 CDT on May 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

Please contact our office if you have questions or concerns with
this forecast.

.DISCUSSION...
Light winds out of the south at ignition will increase to 10-15
mph this afternoon. RH values are in the upper 60s and low 70s
this morning and will fall between 40-45 percent this afternoon.
Precipitation chances are low today, but showers and thunderstorms
will become likely overnight.

.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent).
Temperature.........60 at ignition...Max 78.
RH..................72 percent at ignition...Min 42 percent.
Wind (20 ft)........Winds south at 3 mph at ignition...otherwise
                    Light winds becoming south 5 to 9 mph in the
                    late morning and afternoon.
Smoke dispersal.....Poor /5400 knot-ft/ at ignition.
                    Max...excellent /98300 knot-ft/.
Mixing height.......600 ft AGL at ignition...otherwise 6200 ft AGL.
Transport winds.....South 10 to 18 mph.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth at ignition...max 5.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM
Sky cover.......PC  PC  MCR PC  PC  PC  PC  PC  PC  PC  MCR MCR
Weather cov.....
Weather type....
Tstm cov........
Temp............60  63  68  71  73  74  75  76  77  77  76  74
RH..............72  72  61  55  49  48  45  43  42  42  45  50
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..3   5   6   7   8   9   9   9   9   9   9   8
20 FT wind gust.8   10  12  13  14  15  15  16  16  16  15  15
Mix hgt (kft)...0.6 1.3 2.2 4.4 5.9 6.2 6.1 6.2 6.1 5.7 4.0 1.9
Transp wind dir.SW  S   S   SW  SW  S   S   S   S   S   S   S
Transp wind spd.10  13  14  15  15  16  15  17  18  18  18  16
Haines index....5   5   5   5   5   5   5   5   5   5   5   5

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (65-75 percent). Showers likely
                    and chance of thunderstorms overnight.
Temperature.........Min 59.
RH..................Max 84 percent.
Wind (20 ft)........Southeast winds 7 to 10 mph. Gusty and erratic
                    winds expected near thunderstorms overnight.
                    Gusty and erratic winds expected near
                    thunderstorms after 3 am.
Smoke dispersal.....Excellent (63800 knot-ft) early in the evening
                    decreasing to poor (7200 knot-ft) late in the
                    night.
Mixing height.......600 ft AGL.
Transport winds.....South 15 to 18 mph.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

.FRIDAY...

Sky/weather.........Mostly cloudy (70-80 percent). Showers in the
                    morning. Chance of thunderstorms through the
                    day. Showers likely in the afternoon.
Temperature.........Max 71.
RH..................Min 58 percent.
Wind (20 ft)........Southeast winds 12 to 14 mph shifting to the
                    west around 16 mph late in the afternoon. Gusty
                    and erratic winds expected near thunderstorms
                    in the morning and early afternoon.
Smoke dispersal.....Poor (12900 knot-ft) early in the morning
                    increasing to excellent (98100 knot-ft) in the
                    afternoon.
Mixing height.......4700 ft AGL.
Transport winds.....South 20 to 22 mph shifting to the west 21 to
                    25 mph in the afternoon.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

$$
Forecaster...Strus
Requested by...Kevin Berens
Type of request...PRESCRIBED
.TAG 2414989.0/MPX
.DELDT 05/23/24
.FormatterVersion 2.0.0
.EMAIL kevin.berens@state.mn.us