Spot Forecast Issued by NWS Twin Cities, MN
000
FNUS73 KMPX 211518
FWSMPX
Spot Forecast for Dunnville barrens...OTHER
National Weather Service Twin Cities/Chanhassen MN
1018 AM CDT Thu Mar 21 2024
Forecast is based on ignition time of 1100 CDT on March 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
Please contact our office if you have questions or concerns with
this forecast.
.DISCUSSION...
Current RH values are dry (25-30%) and drop close to 20% by late
afternoon due to daytime heating. Temperatures will generally stay
around freezing today, if not slightly above during the afternoon.
Winds right now are very light (less than 5 mph), and will stay
that way before increasing slightly into the evening. Winds will
vary between a southeasterly and southerly direction throughout
the day. A snow flurry or two could fall this morning and
afternoon, but any major precip won`t move through until after
10pm tonight.
.REST OF TODAY...
Sky/weather.........Mostly cloudy (80-90 percent).
Temperature.........29 at ignition...Max 36.
RH..................29 percent at ignition...Min 27 percent.
Wind (20 ft)........Winds southwest at 2 mph at
ignition...otherwise Light winds becoming south
around 5 mph late in the afternoon, then
becoming light late in the afternoon.
Smoke dispersal.....Fair /16600 knot-ft/ at ignition. Max...fair
/22900 knot-ft/.
Mixing height.......4200 ft AGL at ignition...otherwise 4600 ft
AGL.
Transport winds.....West around 5 mph shifting to the southwest 5
to 6 mph late in the afternoon.
Haines Index........4 or low potential for large plume dominated
fire growth at ignition...max 4.
TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P
Sky cover.......CDY CDY MC MC MC MC MC MC MC CDY CDY CDY
Weather cov..... SCH SCH SCH CHC LKY
Weather type.... SN SN SN SN SN
Tstm cov........
Temp............29 31 32 34 35 35 36 35 34 33 32 31
RH..............29 28 27 27 28 30 30 33 36 41 47 53
20 FT wind dir..SW SW SW SW S S S S SE SE SE SE
20 FT wind spd..2 2 3 3 3 5 3 3 3 3 5 3
20 FT wind gust.6 5 6 7 6 6 6 6 6 7 7 7
Mix hgt (kft)...4.2 4.3 4.5 4.5 4.5 4.6 4.4 4.4 2.7 0.6 0.9 1.3
Transp wind dir.W W W SW SW SW S S S SE SE SE
Transp wind spd.5 5 5 5 5 6 5 5 5 5 7 7
Haines index....4 4 4 4 4 4 4 4 3 3 3 3
.TONIGHT...
Sky/weather.........Cloudy (85-95 percent). Snow.
Temperature.........Min 27.
RH..................Max 88 percent.
Wind (20 ft)........Light winds becoming southeast around 5 mph
late in the evening, then becoming light late
in the evening becoming east 5 to 6 mph
overnight.
Smoke dispersal.....Fair (17500 knot-ft) early in the evening
decreasing to poor (2200 knot-ft) late in the
night.
Mixing height.......600 ft AGL.
Transport winds.....Southeast 5 to 8 mph shifting to the east 7 to
10 mph overnight.
Haines Index........2 to 4 or very low to low potential for large
plume dominated fire growth.
$$
Forecaster...Dettmann
Requested by...Burn boss
Type of request...PRESCRIBED
.TAG 2408112.0/MPX
.DELDT 03/21/24
.FormatterVersion 2.0.0
.EMAIL Kyle.coopman@wisconsin.gov