Text Products for FWS Issued by EWX

Spot Forecast
Issued by NWS Austin/San Antonio, TX
Versions: 1 2

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FNUS74 KEWX 121341
FWSEWX

Spot Forecast for J17 Piles...Austin Fire
National Weather Service Austin/San Antonio TX
841 AM CDT Fri Apr 12 2024

Forecast is based on ignition time of 0900 CDT on April 12.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Winds are currently light and terrain dominated near the burn area.
However, around the time of ignition winds will trend to a more southerly
direction and remain from the south through today. Some gusts will
also occur, especially from late morning through the afternoon hours.
Highs today will be around 81 degrees under sunny skies along with
minimum humidity levels near 34 percent. South winds remain in place
tonight and this will keep moisture in place for excellent humidity
recovery Saturday morning. Expect more low clouds from late tonight
through most of Saturday morning as well. South winds will increase
again on Saturday, with gusty conditions from late morning through
late afternoon.

.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent high clouds).
CWR.................0 percent.
LAL.................No Tstms.
Max temperature.....Around 81.
Min humidity........34 percent.
Eye level winds.....South winds 8 to 13 mph with gusts to 16 mph.
Wind (20 ft)........
 Slope/valley.......South winds 6 to 12 mph with gusts to 14 mph.
Mixing height.......Increasing to 5100 ft AGL.
Transport winds.....South 11 to 21 mph.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........4   6   21  7   11  12  15  8   14
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1
Temp............60  66  70  75  78  79  81  81  81
RH..............67  56  47  40  37  36  34  35  35
20 FT wind dir..S   S   S   S   S   S   S   S   S
20 FT wind spd..7   10  13  14  14  14  14  14  14
20 FT wind gust.12  16  18  20  21  20  20  20  21
Eye lvl wnd dir.S   S   S   S   S   S   S   S   S
Eye lvl wnd spd.4   6   8   8   8   8   8   8   8
Eye lvl wnd gst.7   10  11  12  13  14  16  15  13
Mix hgt (kft)...1.1 1.4 2.0 3.4 4.0 4.3 4.8 5.1 4.1
Transp wind dir.S   S   S   S   S   S   S   S   S
Transp wind spd.10  13  15  17  18  18  18  18  17
Haines index....5   5   5   5   5   5   5   5   5

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent high clouds)
                    then becoming mostly cloudy after Midnight
                    (55-65 percent low clouds).
CWR.................0 percent.
LAL.................No Tstms.
Min temperature.....Around 57.
Max humidity........100 percent.
Eye level winds.....South winds up to 8 mph.
Wind (20 ft)........
 Slope/valley.......South winds 6 to 12 mph.
Mixing height.......Decreasing to 500 ft AGL.
Transport winds.....South 12 to 17 mph.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........18  16  19  30  37  42  58  59  61  55  52  60
Weather cov.....
Weather type....
Tstm cov........
CWR.............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............79  77  71  67  65  63  62  61  60  59  58  58
RH..............39  43  51  59  60  67  72  78  81  87  93  93
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..13  14  12  10  12  13  13  10  10  9   8   7
20 FT wind gust.20  21  17  17  17  18  18  16  14  14  12  10
Eye lvl wnd dir.S   S   S   S   S   S   S   S   S   S   S   S
Eye lvl wnd spd.8   8   7   6   7   8   8   6   6   5   5   4
Eye lvl wnd gst.12  13  10  10  10  11  11  10  8   8   7   6
Mix hgt (kft)...2.3 1.3 1.1 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.17  16  16  16  16  16  16  16  15  14  13  12
Haines index....5   5   5   5   5   5   4   4   4   4   4   4

.SATURDAY...

Sky/weather.........Partly sunny (45-55 percent).
CWR.................0 percent.
LAL.................No Tstms.
Max temperature.....Around 82.
Min humidity........43 percent.
Eye level winds.....South winds up to 10 mph increasing to 11 to 15
                    mph with gusts near 20 mph by early afternoon.
Wind (20 ft)........
 Slope/valley.......South winds 6 to 12 mph increasing to 13 to 16
                    mph with gusts near 26 mph.
Mixing height.......Increasing to 4600 ft AGL.
Transport winds.....South 12 to 20 mph increasing to 21 to 23 mph
                    in the afternoon.
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 (%).........65  67  62  64  70  54  49  43  40  36  33  36
Weather cov.....
Weather type....
Tstm cov........
CWR.............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............58  57  59  62  66  71  76  79  81  82  82  81
RH..............96  100 96  93  84  71  58  50  46  43  43  43
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..7   7   8   10  13  14  16  18  20  18  18  18
20 FT wind gust.10  10  12  15  18  22  24  26  28  28  26  26
Eye lvl wnd dir.S   S   S   S   S   S   S   S   S   S   S   S
Eye lvl wnd spd.4   4   5   6   8   8   10  11  12  11  11  11
Eye lvl wnd gst.6   6   7   9   11  13  14  16  18  19  16  16
Mix hgt (kft)...0.5 0.5 0.8 1.4 1.7 2.2 3.2 3.7 3.9 4.3 4.6 3.9
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.12  12  13  15  17  20  22  23  23  23  22  21
Haines index....4   4   4   4   4   4   5   5   5   5   5   5

$$
Forecaster...24
Requested by...S.Gibbon
Type of request...PRESCRIBED
.TAG 2410476.0/EWX
.DELDT 04/12/24
.FormatterVersion 2.0.0
.EMAIL steven.gibbon@austintexas.gov
National Weather Service Weather Forecast Office
