Spot Forecast Issued by NWS Topeka, KS
000
FNUS73 KTOP 191244
FWSTOP
SPOT FORECAST for Redwood Sign Prairie...USFWS
National Weather Service Topeka KS
744 AM CDT Fri Apr 19 2024
Forecast is based on ignition time of 0800 CDT on April 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
.DISCUSSION...
Partly sunny skies and northeasterly surface winds
around 6 mph, becoming variable and near calm tonight.
Good smoke dispersal rates today. Minimum relative
humidity values range from 25% to 28%.
.REST OF TODAY...
Sky/weather.........Mostly sunny.
Chance of pcpn......0 percent.
Temperature.........43 at ignition...Max 62.
RH..................65 percent at ignition...Min 28 percent.
Wind (20 ft)........
Slope/valley.......Winds northeast at 5 mph at
ignition...otherwise Northeast winds 5 to 8
mph.
Mixing height.......500 ft AGL at ignition...otherwise 5500 ft AGL.
Smoke dispersal.....Poor /4800 knot-ft/ at ignition. Max...good
/44000 knot-ft/.
Haines Index........4 or low potential for large plume dominated
fire growth at ignition...max 4.
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......PC PC PC PC PC PC PC PC PC PC
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0
Temp............43 46 52 55 57 58 61 61 61 62
RH..............65 58 45 39 35 31 29 28 28 29
20 FT wind dir..NE NE E NE NE NE NE NE NE NE
20 FT wind spd..5 7 7 8 8 8 8 7 7 7
20 FT wind gust.14 14 14 13 13 9 9 9 8 9
Mix hgt (kft)...0.5 1.5 2.3 3.0 3.7 4.4 4.8 5.2 5.4 5.5
Haines index....4 4 4 4 4 4 4 4 4 4
SDspl kt-ft/10005 19 30 36 41 44 43 41 43 44
.TONIGHT...
Sky/weather.........Partly cloudy then becoming mostly cloudy.
Chance of pcpn......10 percent.
Temperature.........Min 41.
RH..................Max 65 percent.
Wind (20 ft)........
Slope/valley.......Northeast winds 5 to 7 mph in the evening
becoming light, then becoming northeast 5 to 9
mph overnight.
Mixing height.......400 ft AGL.
Smoke dispersal.....Good (40300 knot-ft) early in the evening
decreasing to poor (2000 knot-ft) late in the
night.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky cover.......MCLEAR MCLEAR MCLEAR PCLDY PCLDY MCLDY
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
Chc of pcpn (%).0 0 0 10 10 10
Temp............60 55 49 47 45 43
RH..............30 39 52 57 59 64
20 FT wind dir..NE NE NE NE NE N
20 FT wind spd..7 6 5 4 5 8
20 FT wind gust.8 9 9 7 9
Mix hgt (ft)....5000 500 400 400 500 500
Haines index....4 4 4 4 4 3
SDspl kt-ft/100040 4 3 2 3 6
.SATURDAY...
Sky/weather.........Mostly cloudy.
Chance of pcpn......10 percent.
Temperature.........Max 56.
RH..................Min 38 percent.
Wind (20 ft)........
Slope/valley.......Northeast winds 9 to 11 mph. Gusts up to 20 mph
early in the morning.
Mixing height.......4500 ft AGL.
Smoke dispersal.....Poor (7300 knot-ft) early in the morning
increasing to good (54000 knot-ft) in the
afternoon.
Haines Index........3 or very low potential for large plume
dominated fire growth.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky cover.......MCLDY MCLDY MCLDY MCLDY
Weather cov.....
Weather type....NONE NONE NONE NONE
Tstm cov........
Chc of pcpn (%).10 10 10 10
Temp............42 43 51 54
RH..............65 59 42 39
20 FT wind dir..NE NE NE N
20 FT wind spd..9 11 11 9
20 FT wind gust.18 16 14 13
Mix hgt (ft)....600 2100 3400 4400
Haines index....3 3 3 3
SDspl kt-ft/10009 36 48 53
$$
Forecaster...Jones
Requested by...David Spencer
Type of request...PRESCRIBED
.TAG 2411389.0/TOP
.DELDT 04/19/24
.FormatterVersion 2.0.0
.EMAIL david_spencer@fws.gov