Spot Forecast
Issued by NWS Quad Cities, IA IL

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Spot Forecast for IGH Rx...The Nature Conservancy
National Weather Service Quad Cities IA/IL
533 AM CDT Mon Apr 15 2024

Forecast is based on ignition time of 0600 CDT on April 15.
If conditions become unrepresentative...contact the
National Weather Service Quad Cities at (563) 386-3815.

.DISCUSSION...

Dry conditions continue today before a large system moves in for
tonight, lasting through early Wednesday, bringing widespread
showers and thunderstorms Tuesday and Tuesday night. For today,
abundant sunshine will once again help minimum RH values dip to
around the 25 percent range. Winds will be from the northeast
initially, turning more easterly with time, becoming around 10 to
15 mph.

The Grassland Fire Danger Index -GFDI- does not account for
precipitation that occurs or any snow on the ground. Please
make appropriate adjustments.


.TODAY...

Sky/weather.........Sunny (0-10 percent).
Chance of pcpn......0 percent.
LAL.................No Tstms.
Begin/end of pcpn...
Max temperature.....Around 79.
Min humidity........24 percent.
Max apparent temp...79.
Eye level winds.....Northeast winds around 5 mph shifting to the
                    east 7 to 9 mph in the late morning and
                    afternoon.
Wind shift..........
Wind (20 ft)........East winds 9 to 15 mph.
Mixing height.......4200 ft AGL.
Transport winds.....East 13 to 20 mph increasing to 18 to 20 mph
                    late in the afternoon.
GFDI................6.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........2   3   8   2   1   1   1   0   0   1   1   8
Weather cov.....M   M   M   M   M   M   M   M   M   M   M   M
Weather type....M   M   M   M   M   M   M   M   M   M   M   M
Tstm cov........M   M   M   M   M   M   M   M   M   M   M   M
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............49  51  54  60  64  69  72  74  77  78  79  79
RH..............55  54  50  47  46  36  33  29  25  26  24  24
Aparnt tmp (F)..47  50  53  60  64  69  72  74  77  78  79  79
20 FT wind dir..N   NE  NE  E   E   E   E   E   E   E   E   E
20 FT wind spd..8   9   9   12  13  14  15  15  15  15  15  15
20 FT wind gust.13  14  16  18  20  21  21  21  22  22  23  23
Eye lvl wnd dir.N   NE  NE  E   E   E   E   E   E   E   E   E
Eye lvl wnd spd.5   5   5   7   8   8   9   9   9   9   9   9
Eye lvl wnd gst.8   8   10  11  12  13  13  13  13  13  14  14
Mix hgt (kft)...0.4 0.4 0.4 1.2 2.0 2.6 3.1 3.6 3.8 4.1 4.1 4.2
Transp wind dir.NE  NE  E   E   E   E   E   E   E   E   E   E
Transp wind spd.14  13  15  18  20  20  20  18  18  18  18  20
GFDI............1   2   2   3   4   6   7   8   9   9   10  10
Haines index....4   4   4   4   4   4   4   5   5   5   5   5

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent) then becoming
                    mostly cloudy (65-75 percent). Rain showers and
                    chance of thunderstorms overnight.
Chance of pcpn......80 percent.
LAL.................No Tstms until 2400, then 1-8 strikes until
                    0100, then 9-15 strikes until 0200, then 16-25
                    strikes.
Begin/end of pcpn...
Min temperature.....Around 55.
Max humidity........83 percent.
Max apparent temp...78.
Eye level winds.....East winds 8 to 12 mph with gusts to around 19
                    mph.
Wind shift..........
Wind (20 ft)........East winds 14 to 20 mph with gusts to around 31
                    mph. Gusty and erratic winds expected near
                    thunderstorms overnight. Gusty and erratic
                    winds expected near thunderstorms overnight.
Mixing height.......600 ft AGL.
Transport winds.....East 17 to 25 mph.
GFDI................7.
Haines Index........3 to 5 or very low to moderate potential for
                    large plume dominated fire growth.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........13     31     61     67     82     85
Weather cov.....M      M             S CHC  CHANCE LIKELY
Weather type....M      M      NONE   RNSHWR RNSHWR RNSHWR
Tstm cov........M      M             S CHC  CHANCE CHANCE
Chc of pcpn (%).0      0      0      20     50     70
LAL.............1      1      1      2      4      4
Temp............78     69     65     63     60     58
RH..............28     40     48     54     60     77
Aparnt tmp (F)..78     69     65     63     60     58
20 ft wind......E 14   E 14   E 15   E 17   E 20   E 20
20 ft wind gust.23     24     26     30     31     31
Eye level wind..E 8    E 8    E 9    E 10   E 12   E 12
Eye lvl wnd gst.14     14     16     18     19     19
Mix hgt (ft)....3800   600    600    600    700    1000
Transport wind..E 21   E 17   E 21   SE 23  E 25   SE 25
GFDI............9      7      6      7      7      6
Haines index....5      4      4      4      3      3

.TUESDAY...

Sky/weather.........Mostly cloudy (70-80 percent). Chance of
                    thunderstorms in the morning. Rain showers
                    through the day. Thunderstorms likely in the
                    afternoon.
Chance of pcpn......100 percent.
LAL.................16-25 strikes until 0700, then 9-15 strikes
                    until 1000, then 16-25 strikes until 1300, then
                    >25 strikes.
Begin/end of pcpn...
Max temperature.....Around 73.
Min humidity........77 percent.
Max apparent temp...68.
Eye level winds.....Breezy. Southeast winds 12 to 15 mph shifting
                    to the south around 13 mph late in the
                    afternoon. Gusts up to 38 mph.
Wind shift..........
Wind (20 ft)........Breezy. East winds around 20 mph shifting to
                    the south 21 to 22 mph late in the afternoon.
                    Gusts up to 38 mph. Gusty and erratic winds
                    expected near thunderstorms.
Mixing height.......2000 ft AGL.
Transport winds.....Southeast 26 to 31 mph shifting to the south
                    around 25 mph late in the afternoon.
GFDI................8.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

TIME (CDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........86     86     87     87     80     71
Weather cov.....DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........CHANCE CHANCE CHANCE CHANCE LIKELY LIKELY
Chc of pcpn (%).80     90     90     90     100    100
LAL.............4      3      4      4      5      5
Temp............56     55     60     65     68     68
RH..............80     77     84     84     84     81
Aparnt tmp (F)..56     55     60     65     68     68
20 ft wind......E 20   E 20   E 22   SE 24  SE 23  S 22
20 ft wind gust.30     30     32     36     38     33
Eye level wind..E 12   E 12   E 13   SE 14  SE 14  S 13
Eye lvl wnd gst.18     18     19     22     23     20
Mix hgt (ft)....1200   1300   1400   1600   1900   2000
Transport wind..SE 28  E 29   SE 31  SE 31  SE 29  S 25
GFDI............5      5      6      8      9      7
Haines index....3      2      2      2      3      3

$$
Forecaster...Schultz
Requested by...Dale Maxson
Type of request...PRESCRIBED
.TAG 2410832.0/DVN
.DELDT 04/15/24
.FormatterVersion 2.0.0
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