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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 PM EDT Sat May 9 2026
NCZ003-092000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
1231 PM EDT Sat May 9 2026
Date Sat 05/09/26 Sun 05/10/26 Mon 05/11/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 77 52 82 53 70
TEMP 74 76 71 58 54 52 55 75 80 81 73 63 60 57 57 62 65 67 60
DEWPT 50 50 51 49 49 47 48 50 49 50 53 53 53 53 54 58 52 50 46
MAX/MIN RH 40 85 32 96 55
RH 43 40 49 72 83 83 77 41 34 34 49 70 78 86 90 87 63 54 60
WIND DIR SW W W NW W NW NW S SW SW W SW NW NW N NW NW NW N
WIND SPD 8 8 4 3 3 2 2 2 5 5 3 3 3 3 5 5 6 6 5
CLOUDS SC SC SC B2 B1 SC FW CL FW FW SC SC B2 B2 OV OV OV B2 SC
CLOUDS(%) 40 32 40 71 64 43 9 2 7 17 26 36 73 86 94 93 88 79 49
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 7 7 6 6 7 7 10
POP 12HR 5 0 0 40 70
RAIN SHWRS IS NM NM
MIX HGT 6 7 <1 <1 <1 <1 <1 5 8 8 <1 <1 <1 <1 <1 2 2 3 <1
T WIND DIR SW W W NW NW NW NW W SW SW S N N N N N N N N
T WIND SPD 17 20 13 4 5 5 5 9 8 9 4 0 1 2 14 19 16 10 11
DISPERSION VP VP VP VP VP VP VP VP PR
ADI 132169 6 2 3 3 6 60 73 84 2 0 1 1 16 45 43 34 8
MAX LVORI 1 1 3 4 6 6 5 1 1 1 3 4 4 5 5 3 1 1 3
STABILITY A A G G G G A A A A G F F F C C C C E
CEILING None 23400 None None None None 4500 1900 4300
STA PRES 27.94 28.03 28.07 28.12 28.08 28.05 27.97 28.04 28.09
Date Tue 05/12/26Wed 05/13/26Thu 05/14/26Fri 05/15/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 42 73 46 75 47 72 45 77
TEMP 48 49 69 66 49 51 71 68 52 51 69 65 49 50 73 71
DEWPT 38 37 37 41 40 42 51 54 49 45 44 44 42 42 46 49
RH 68 63 31 40 71 71 49 61 89 80 40 46 77 74 38 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL CL FW FW B1 B1 SC FW FW FW CL FW FW FW
POP 12HR 0 0 5 50 20 0 5 5
RAIN SHWRS SC SC IS
TSTMS SC IS
$$
This product is for planning and review purposes only and is not
to be substituted for an official fire weather spot forecast. The
data displayed are calculated from a 2.5 by 2.5 km digital
database and only approximates weather conditions in highly
varying terrain. Please relay any comments you have to the NWS via
email at rnk.webmaster@noaa.gov.
Below is a weather element key for this product.
(Note...winds do not reflect local terrain effects.)
DAY 1 THROUGH 3...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew point temperature
MIN/MAX RH OR MAX/MIN RH(%).........Maximum/Minimum humdity
RH(%)...............................Relative humidity
WIND DIR(8 POINT COMPASS)...........Wind direction
WIND SPD(MPH).......................Wind speed
CLOUDS(CATEGORY)....................Cloud cover category
EXAMPLE: CL = CLEAR; FW = FEW; SC = Scattered; BK = Broken; OV = Overcast
CLOUDS(%)...........................Cloud cover as a percentage
VSBY................................Visibility value in statute miles
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER...
TYPE...
RAIN...........Rain
RAIN SHWRS.....Rain showers
TSTMS..........Thunderstorms
DRIZZLE........Drizzle
SNOW...........Snow
SNOWSHWRS......Snow showers
SLEET..........Sleet
FRZG RAIN......Freezing rain
FRZG DRZL......Freezing drizzle
COVERAGE...
IS.............Isolated
SC.............Scattered
NM.............Numerous
O..............Occasional
S..............Slight chance
C..............Chance
L..............Likely
WD.............Widespread
D..............Definite
AR.............Areas
PA.............Patchy
MIX HGT(THOUSANDS OF FT AGL)........Mixing height
Example: 6 = 6000 feet; 12 = 12000 feet; <1 = Less than 1000 foot
t WIND DIR(8 POINT COMPASS).........Transport Wind direction
T WIND SPD(MPH).....................Transport Wind speed
DISPERSION(CATEGORY)................Smoke Dispersion category
Values: vp =Very Poor;PR = Poor; FR = Fair; GD = Good;
ADI (INDEX).........................Atmospheric Dispersion Index
MAX LVORI (INDEX)...................Low Visibility Occurrence Risk Index
STABILITY (CATEGORY)................Pasquill Turner Stability
CEILING (FT)........................Ceiling
STA PRES (INCHES MERCURY)...........Station pressure
Day 4 Through 7...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew Point temperature
RH(%)...............................Relative Humidity
WIND SPD(MPH).......................Wind Speed
Example: <15 = less than 15 MPH; 15> = 15 MPH or greater
AVE CLOUDS(CATEGORY)................Average Cloud Cover Category
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER.............................See Day 1 through 3 weather descriptions