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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 AM EDT Thu May 7 2026
VAZ012-072000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
301 AM EDT Thu May 7 2026
Date Thu 05/07/26 Fri 05/08/26 Sat 05/09/26
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 35 68 43 72
TEMP 51 48 52 57 59 54 46 39 36 40 56 64 67 60 49 45 44 49 61 67 71 65
DEWPT 50 48 46 44 40 37 34 33 31 32 33 34 34 36 37 38 38 41 45 46 46 48
MAX/MIN RH 49 82 29 81 41
RH 96100 80 62 49 52 63 79 82 73 42 32 29 41 63 76 79 74 56 47 41 54
WIND DIR NW NW N NW NW NW NW NW NW W W W SW SW S SW SW SW W W W W
WIND SPD 2 2 3 3 4 3 2 1 1 1 2 3 3 2 2 1 1 2 5 5 5 2
WIND GUST 16
CLOUDS OV B2 B2 B2 SC FW CL CL CL CL CL FW FW FW FW FW SC SC SC SC SC SC
CLOUDS(%) 89 80 80 85 40 24 5 1 4 3 1 6 6 16 19 24 41 48 33 48 31 26
VSBY 6 7 7 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 40 0 0 0 5
RAIN SHWRS NM SC IS
Obvis PF PF
MIX HGT 1 1 2 3 5 <1 <1 <1 <1 <1 4 7 6 <1 <1 <1 <1 <1 4 6 6 <1
T WIND DIR NW NW N NW NW NW NW NW W W W W SW S S S S SW SW W W W
T WIND SPD 6 2 5 11 17 10 8 5 3 1 8 9 11 5 8 5 4 9 21 25 21 11
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 3 4 15 45100 5 4 3 2 1 41 73 88 3 4 3 2 9101180151 5
MAX LVORI 8 8 4 1 1 2 3 4 5 3 1 1 1 2 3 4 5 4 1 1 1 3
STABILITY F B B B A G G G G A A A A G G G F A A A A G
CEILING 700 None None None None None None None None None
STA PRES 27.10 27.10 27.17 27.20 27.22 27.14 27.13 27.06 27.05 27.07
Date Sun 05/10/26Mon 05/11/26Tue 05/12/26Wed 05/13/26
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 77 47 61 37 64 45 69
TEMP 50 52 72 67 55 49 59 55 40 41 62 59 48 49 67 64
DEWPT 47 49 48 51 49 44 38 33 33 32 33 36 39 41 45 47
RH 89 89 42 56 80 83 45 43 76 70 33 42 71 74 45 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B1 B2 B1 B1 SC FW FW FW SC SC B1 B1
POP 12HR 5 40 60 20 0 5 20 40
RAIN SHWRS SC SC NM IS IS SC SC
TSTMS IS 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