Suppression Forecast
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FNUS71 KPBZ 181052
FWSPBZ

Spot Forecast for SGL 074...PGC
National Weather Service Pittsburgh PA
652 AM EDT Tue Apr 18 2017

Forecast is based on ignition time of 0700 EDT on April 18.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office at (412) 262-1485, if you have questions
or concerns with this forecast.

.Discussion...

High pressure will ensure dry weather into Wednesday. The latter
half of the week will feature increased rain chances as a series
of low pressure systems affect the region.

.TODAY...

Sky/weather.........Sunny (20-30 percent).
Chance of pcpn......0 percent.
LAL.................No Tstms.
Max temperature.....Around 66.
Min humidity........30 percent.
Wind (20 ft)........Light and variable winds.
Mixing height.......0-600 ft AGL...increasing to 7100-8000 ft AGL.
Transport winds.....Northeast 2 to 3 mph...becoming south 2 to 7
                    mph in the late morning and afternoon.
Haines Index........3 to 5...or very low to moderate potential for
                    large plume dominated fire growth.

TIME (EDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........19  18  19  20  22  23  24  25  26  27  28
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1
Temp............41  43  47  52  56  60  62  64  65  66  66
RH..............80  76  64  52  43  38  35  34  32  30  31
20 FT wind dir..E   E   E   E   E   E   SE  S   S   S   S
20 FT wind spd..3   3   3   3   4   3   3   3   3   4   4
20 FT wind gust.10  10  5   5   10  10  10  5   10  10  10
Mix hgt (kft)...0.1 0.6 2.3 4.5 6.4 7.3 7.7 7.7 8.0 7.9 7.1
Transp wind dir.E   E   NE  N   NW  W   W   SW  SW  S   S
Transp wind spd.3   3   3   5   5   3   2   2   3   6   7
Haines index....3   3   3   3   4   4   4   4   4   4   5

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent)...then becoming
                    mostly cloudy (55-65 percent).
Chance of pcpn......10 percent.
LAL.................No Tstms.
Min temperature.....Around 48.
Max humidity........73 percent.
Wind (20 ft)........Light and variable winds...becoming southeast 5
                    to 9 mph early in the evening.
Mixing height.......4800 ft AGL...decreasing to 0-600 ft AGL.
Transport winds.....Southeast 6 to 15 mph...becoming south 8 to 16
                    mph after midnight.
Haines Index........2 to 5...or very low to moderate potential for
                    large plume dominated fire growth.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........28  29  32  35  39  42  51  61  70  69  68  68
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   10  10  10  10  10
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............64  62  59  57  55  54  53  52  51  50  49  48
RH..............33  37  41  46  50  54  58  61  65  68  71  73
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..4   4   5   6   7   8   8   8   8   9   9   9
20 FT wind gust.5   5   10  10  10  10  15  15  15  15  15  15
Mix hgt (kft)...4.8 2.2 0.1 0.1 0.1 0.3 0.4 0.5 0.6 0.5 0.4 0.4
Transp wind dir.S   SE  SE  SE  SE  SE  SE  S   S   S   S   S
Transp wind spd.7   6   6   7   8   9   12  15  16  14  10  8
Haines index....5   5   5   5   5   3   3   3   2   2   2   2

.WEDNESDAY...

Sky/weather.........Mostly cloudy (80-90 percent). A slight chance
                    of showers late in the morning. A chance of
                    showers in the late morning and
                    afternoon...then showers likely late.
Chance of pcpn......60 percent.
LAL.................No Tstms.
Max temperature.....Around 62.
Min humidity........63 percent.
Wind (20 ft)........South winds 7 to 9 mph. Gusts up to 20 mph
                    early in the afternoon.
Mixing height.......400-1800 ft AGL.
Transport winds.....South 10 to 17 mph.
Haines Index........2...or very low potential for large plume
                    dominated fire growth.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........74  81  88  89  91  92  92  92  92  93  93  93
Weather cov.....            SCH CHC CHC CHC CHC CHC CHC CHC LKY
Weather type....            RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
Chc of pcpn (%).10  10  10  20  30  30  40  50  50  50  50  60
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............48  48  48  49  50  52  55  57  59  60  60  61
RH..............75  77  77  76  74  70  68  66  65  64  63  63
20 FT wind dir..SE  SE  SE  S   S   S   S   S   S   S   S   S
20 FT wind spd..9   9   9   9   9   9   9   9   8   8   8   7
20 FT wind gust.15  15  15  15  15  15  20  20  15  15  15  15
Mix hgt (kft)...0.4 0.6 0.7 0.9 1.0 1.1 1.4 1.6 1.8 1.7 1.6 1.3
Transp wind dir.S   SE  SE  SE  SE  SE  S   S   S   S   S   S
Transp wind spd.10  14  16  16  16  15  16  16  17  17  17  16
Haines index....2   2   2   2   2   2   2   2   2   2   2   2

$$
Forecaster...MPK
Requested by...Robert Hall
Type of request...PRESCRIBED
.TAG 1707106.0/PBZ
.EMAIL shopper@pa.gov



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