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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EDT Sat May 9 2026
VAZ018-100800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
431 PM EDT Sat May 9 2026
Date 05/09/26 Sun 05/10/26 Mon 05/11/26 Tue
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 52 79 56 67 43
TEMP 73 65 58 54 52 57 73 79 78 69 63 59 57 56 58 63 65 59 52 48 46 49
DEWPT 45 45 45 45 45 48 50 48 48 51 51 51 51 51 54 47 45 41 37 35 34 35
MIN/MAX RH 77 33 86 48 71
RH 37 48 62 71 77 72 44 34 35 53 65 75 80 83 86 56 48 51 56 60 63 58
WIND DIR W W W W W W W W W NW W W NW N NW NW NW NW NW NW NW NW
WIND SPD 10 5 6 6 5 5 6 8 8 6 4 4 5 4 5 5 8 6 4 4 4 4
CLOUDS SC CL CL FW FW CL FW FW SC SC B1 B1 B2 OV OV B2 B1 FW FW FW FW CL
CLOUDS(%) 27 5 5 22 7 4 9 24 27 35 63 53 77 97 91 83 53 18 12 11 10 4
VSBY 10 10 10 10 10 10 10 10 10 10 10 6 6 6 6 7 7 10
POP 12HR 0 5 70 70 0
RAIN SHWRS NM NM NM
MIX HGT 6 <1 <1 <1 <1 <1 5 8 6 <1 <1 <1 <1 1 2 3 6 1
T WIND DIR W W W W W W W W W NW NW NW N N NW N NW NW
T WIND SPD 14 9 4 4 5 6 18 14 20 16 3 4 4 9 14 9 8 4
DISPERSION PR PR PR PR PR VP VP PR PR VP VP VP
ADI 103 4 2 2 3 7 98122147 7 2 3 3 14 35 32 35 2
MAX LVORI 1 2 3 3 4 3 1 1 1 2 3 3 5 4 4 1 1 2
STABILITY B F F F F A B B B F E E E C C C C F
CEILING None None None None None 1400 500 None None
STA PRES 27.67 27.70 27.77 27.74 27.81 27.84 27.89 27.84
Date 05/12Wed 05/13/26Thu 05/14/26Fri 05/15/26Sat 05/16/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 71 48 70 48 66 46 73 52 81
TEMP 68 60 50 53 68 64 53 51 64 59 48 50 71 66 54 56 79 74
DEWPT 34 37 35 40 49 49 45 44 42 40 39 42 44 46 43 47 50 51
RH 28 42 56 61 51 58 74 77 45 49 71 74 38 48 66 72 36 44
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL FW SC B1 B2 B1 FW SC SC FW FW FW FW FW FW SC SC
POP 12HR 0 10 70 30 5 5 5 5 5
RAIN SHWRS SC NM SC
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