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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 AM EDT Thu May 14 2026
VAZ012-142000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
331 AM EDT Thu May 14 2026
Date Thu 05/14/26 Fri 05/15/26 Sat 05/16/26
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 58 37 72 46 82
TEMP 44 42 47 53 57 53 46 41 38 43 58 67 71 64 53 50 48 53 69 76 80 73
DEWPT 40 36 34 34 33 34 35 35 34 36 36 35 36 40 39 38 37 42 48 51 53 54
MAX/MIN RH 40 85 28 69 39
RH 86 79 60 48 40 48 65 79 85 76 44 30 28 41 59 63 65 66 47 42 39 51
WIND DIR NW NW NW NW NW NW NW NW NW W NW NW W W N SW SW SW SW SW SW SW
WIND SPD 3 6 6 6 6 5 2 2 2 2 3 3 2 1 0 1 1 1 2 4 3 1
CLOUDS SC B1 B1 B1 SC SC FW FW FW FW FW SC B1 SC SC SC B1 B1 SC B1 B1 SC
CLOUDS(%) 35 68 53 62 33 33 20 11 16 15 11 27 51 47 39 37 52 51 38 57 56 39
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 20
RAIN SHWRS IS IS
TSTMS IS IS
MIX HGT <1 2 3 4 5 1 <1 <1 <1 1 3 4 5 <1 <1 <1 <1 <1 3 2 4 <1
T WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW W W SW SW SW SW W SW SW SW
T WIND SPD 19 21 21 21 24 10 16 8 12 19 13 12 9 3 3 3 4 5 8 14 17 6
DISPERSION VP PR VP VP VP VP VP VP VP VP
ADI 9 54 69 85133 5 7 4 6 30 61 67 49 2 2 2 2 6 28 42 74 3
MAX LVORI 5 3 1 1 1 2 3 4 5 3 1 1 1 2 3 3 3 3 2 1 1 2
STABILITY G C C C B F G G G A A A B F G G F B A C B G
CEILING None None None None None None None None None None
STA PRES 27.15 27.17 27.21 27.24 27.28 27.25 27.31 27.32 27.36 27.32
Date Sun 05/17/26Mon 05/18/26Tue 05/19/26Wed 05/20/26
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 54 80 56 82 57 81 58 79
TEMP 57 58 79 75 59 60 82 76 62 62 80 76 63 63 78 74
DEWPT 51 52 53 56 53 55 55 57 54 56 56 58 56 57 58 59
RH 80 80 41 52 80 84 40 52 75 81 44 54 78 81 50 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC FW FW FW FW FW FW FW FW SC SC SC B2 B2
POP 12HR 5 10 10 10 10 20 20 60
RAIN SHWRS IS IS NM NM
TSTMS IS IS SC
$$
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