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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
101 PM EDT Mon May 11 2026
VAZ012-112000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
101 PM EDT Mon May 11 2026
Date Mon 05/11/26 Tue 05/12/26 Wed 05/13/26
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 62 37 71 45 69
TEMP 60 61 56 46 40 38 45 61 67 70 63 52 48 46 50 62 65 68 62
DEWPT 49 41 37 36 34 32 36 38 39 38 42 40 39 38 42 47 49 50 50
MAX/MIN RH 45 74 31 73 51
RH 67 48 49 68 79 79 70 42 36 31 46 63 71 73 74 58 56 52 65
WIND DIR N N N N N N SW SW SW SW SW S SW SW SW SW SW W W
WIND SPD 2 2 1 0 0 0 1 2 2 2 1 2 2 2 3 5 6 6 3
WIND GUST 16 18 18
CLOUDS OV FW FW CL CL CL CL CL SC SC FW CL CL FW B1 B1 B2 B2 SC
CLOUDS(%) 94 21 9 4 2 3 2 1 26 28 14 5 3 13 52 68 86 86 48
VSBY 10 7 10 10 7 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 100 0 0 10 60
RAIN SHWRS SC IS SC SC NM SC
TSTMS SC SC
MIX HGT 3 4 <1 <1 <1 <1 <1 5 6 6 <1 <1 <1 <1 <1 4 2 4 <1
T WIND DIR NW N N W W W W NW W W SW S S SW SW SW SW SW SW
T WIND SPD 8 14 8 3 3 4 2 9 9 9 5 4 5 5 6 26 16 17 6
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 23 84 4 2 2 2 2 58 68 70 3 2 3 3 7103 45 60 5
MAX LVORI 3 1 2 3 3 5 3 1 1 1 2 3 3 4 3 1 1 1 3
STABILITY C A F F F G A A A A G G G G B C C C E
CEILING None None None None None None None 2700 1300
STA PRES 27.31 27.37 27.38 27.41 27.35 27.34 27.27 27.23 27.12
Date Thu 05/14/26Fri 05/15/26Sat 05/16/26Sun 05/17/26
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 41 60 38 72 49 81 54 85
TEMP 48 42 56 54 42 43 66 64 51 54 76 72 58 58 80 76
DEWPT 44 37 36 36 36 37 38 42 41 44 53 55 53 53 53 55
RH 86 82 47 50 79 79 36 45 68 69 45 55 83 83 39 48
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC FW FW FW SC SC SC SC B1 SC SC FW SC
POP 12HR 40 0 0 0 10 30 10 20
RAIN SHWRS SC IS 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