365
FNUS71 KPBZ 111542
FWSPBZ

Spot Forecast for Nursery Bottom RX...USDA FS, WV-MOF
National Weather Service Pittsburgh PA
1142 AM EDT Tue Mar 11 2025

Forecast is based on ignition time of 0800 EDT on March 12.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...
Fire weather conditions will be slight less prevalent than the
day prior. Wednesday will start mostly clear with light southeast
flow with sustained winds around 5 mph. Through the day the winds
will increase out of the southwest, with the potential for some
gusts from the west as winds travel up- valley. The highest winds
are expected between noon and 4pm, with the highest wind gusts of
15mph to 20mph. Relative humidities are expected to drop from the
60s in the morning to low 30s by late afternoon. Some high clouds
may filter in for the afternoon.

Overnight relative humidities are expected to recover to the upper
60s and low 70s with winds calming. Into Thursday, relative
humidities are expected to drop into the 30s once again in the
afternoon with decreasing clouds. Winds are forecast to be
slightly calmer than Wednesday, gusting to 10 to 15 mph out of
the west- southwest.

.WEDNESDAY...

Sky/weather.........Sunny (15-25 percent).
Chance of pcpn......0 percent.
Max temperature.....Around 73.
Min humidity........28 percent.
Wind (20 ft)........Light winds becoming southwest around 5 mph in
                    the afternoon.
Mixing height.......6400 ft AGL.
Transport winds.....Southwest 9 to 17 mph increasing to 20 to 21
                    mph in the afternoon.
LVORI...............2.
ADI.................16 early in the morning increasing to 146 in
                    the afternoon.

TIME (EDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........28  11  7   6   12  17  23  26  29  32
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0
Temp............47  49  56  60  64  68  71  72  73  73
RH..............69  68  57  51  44  37  33  30  29  28
20 FT wind dir..SE  SE  S   SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..1   2   2   2   3   5   5   6   5   5
20 FT wind gust.6   6   7   8   10  11  12  12  11  10
Mix hgt (kft)...1.2 1.3 2.6 3.3 4.3 5.2 5.8 6.3 6.3 6.4
Transp wind dir.S   S   SW  SW  SW  SW  SW  W   W   W
Transp wind spd.10  9   13  14  17  20  21  21  21  21
LVORI...........3   3   1   1   1   1   1   1   1   1
ADI.............16  16  41  56  87  117 135 144 144 146

.WEDNESDAY NIGHT...

Sky/weather.........Partly cloudy (30-40 percent) then becoming
                    mostly cloudy (60-70 percent).
Chance of pcpn......0 percent.
Min temperature.....Around 47.
Max humidity........74 percent.
Wind (20 ft)........Light winds.
Mixing height.......1100 ft AGL.
Transport winds.....Southwest 9 to 18 mph decreasing to around 8
                    mph early in the morning.
LVORI...............3.
ADI.................4 to 8.

TIME (EDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........32  33  33  29  26  22  25  29  32  45  57  70
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............69  65  61  59  56  53  52  51  51  50  49  48
RH..............33  41  49  54  60  66  66  67  67  69  70  72
20 FT wind dir..SW  S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..3   2   1   1   1   1   1   1   1   1   1   1
20 FT wind gust.8   6   6   6   6   6   6   6   6   6   6   6
Mix hgt (kft)...5.1 1.7 1.2 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1
Transp wind dir.W   W   W   SW  SW  SW  SW  SW  SW  SW  SW  SW
Transp wind spd.18  12  9   9   9   9   9   10  10  9   9   8
LVORI...........2   2   2   2   3   3   3   3   3   3   3   3
ADI.............8   5   4   4   4   4   4   5   5   4   4   4

.THURSDAY...

Sky/weather.........Partly sunny (55-65 percent).
Chance of pcpn......10 percent.
Max temperature.....Around 71.
Min humidity........38 percent.
Wind (20 ft)........Light winds.
Mixing height.......6400 ft AGL.
Transport winds.....Southwest 8 to 13 mph.
LVORI...............2.
ADI.................8 early in the morning increasing to 86 in the
                    afternoon.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........71  73  74  72  70  68  64  59  55  53  50  48
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   10  10  10  10
Temp............48  48  48  52  55  59  62  66  69  69  70  70
RH..............73  73  74  68  64  59  53  47  42  41  39  38
20 FT wind dir..S   S   S   S   SW  SW  SW  SW  SW  W   W   W
20 FT wind spd..1   1   1   1   1   2   2   3   3   3   3   3
20 FT wind gust.6   6   6   6   6   6   6   7   8   8   7   6
Mix hgt (kft)...0.9 0.9 1.1 1.9 3.1 4.2 5.0 5.7 6.1 6.4 6.4 5.8
Transp wind dir.SW  SW  S   SW  SW  SW  SW  SW  SW  SW  W   W
Transp wind spd.8   8   8   9   9   10  12  13  13  13  12  10
LVORI...........3   3   3   3   1   1   1   1   1   1   1   1
ADI.............9   8   11  22  38  52  66  78  85  86  80  68

$$
Forecaster...CM
Requested by...Conor Shanahan
Type of request...PRESCRIBED
.TAG 2505884.0/PBZ
.DELDT 03/11/25
.FormatterVersion 2.0.0
.EMAIL samuel.urffer@usda.gov,conor.shanahan@usda.gov,susan.greenleaf@usda.gov