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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Mon May 11 2026
VAZ020-112000-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
131 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 64 37 73 50 69
TEMP 61 63 57 50 45 38 48 63 69 71 63 57 53 51 55 63 64 68 62
DEWPT 46 36 35 33 33 33 38 39 38 38 42 41 40 39 42 47 52 51 49
MAX/MIN RH 36 69 29 63 55
RH 58 36 43 52 62 82 68 41 32 30 46 55 61 63 61 56 65 54 62
WIND DIR N NW NW NW NW NW N SW SW SW S S SW SW SW SW SW SW W
WIND SPD 0 1 2 1 1 1 0 2 2 3 2 2 3 3 3 4 4 4 3
WIND GUST 14 16 16
CLOUDS B2 FW FW FW FW FW FW CL SC FW FW SC FW SC B2 B2 OV OV B1
CLOUDS(%) 84 8 8 11 13 12 12 3 27 22 22 32 11 37 80 80 96 96 56
VSBY 9 1 9 1 0 0 0 10 10 10 10 10 10 10 10 4 10 10 4
POP 12HR 100 0 0 40 70
RAIN SHWRS SC NM NM NM SC
TSTMS SC SC
MIX HGT 3 6 <1 <1 <1 <1 <1 5 7 6 <1 <1 <1 <1 <1 3 4 3 <1
T WIND DIR N NW NW W NW N NE W W W SW S S SW SW W SW SW S
T WIND SPD 8 13 5 3 3 3 4 8 9 11 6 4 3 5 6 27 26 19 9
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 33105 3 2 2 2 5 53 74 89 3 2 2 3 9101 95 67 4
MAX LVORI 1 1 2 3 3 4 3 1 1 1 2 2 3 3 3 1 1 1 3
STABILITY B A F F F G A A A A G G G G B B C C F
CEILING None None None None None None None 3300 1500
STA PRES 27.89 27.94 27.98 28.00 27.93 27.92 27.84 27.78 27.69
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 47 61 45 72 51 83 61 86
TEMP 51 49 59 55 48 49 69 65 53 56 79 75 63 64 83 78
DEWPT 43 41 37 35 36 37 38 40 40 46 53 54 53 55 53 55
RH 74 74 44 47 63 63 32 40 61 69 41 48 70 73 36 45
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC SC SC SC FW FW SC SC SC SC SC FW FW SC
POP 12HR 30 0 0 0 5 20 10 20
RAIN SHWRS SC IS IS
TSTMS IS 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