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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun May 10 2026
VAZ012-102000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 AM EDT Sun May 10 2026
Date Sun 05/10/26 Mon 05/11/26 Tue 05/12/26
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 77 48 66 38 70
TEMP 67 73 73 66 57 53 51 51 55 60 62 56 47 41 38 43 58 65 69 62
DEWPT 46 45 46 49 49 49 48 48 48 46 41 37 36 34 32 34 34 35 36 39
MAX/MIN RH 34 94 44 79 29
RH 47 37 38 54 75 86 89 89 77 60 46 49 65 76 79 70 40 33 30 43
WIND DIR W W W NW NW NW N N N N NW NW N NW NW N N W SW S
WIND SPD 3 4 4 2 1 1 1 1 2 3 3 2 1 1 1 0 2 2 1 1
CLOUDS CL FW FW FW SC B1 OV OV B2 OV OV SC FW FW FW FW CL CL CL FW
CLOUDS(%) 2 25 21 20 50 55 88 89 86 92 88 39 8 10 19 11 1 4 2 13
VSBY 10 10 10 10 10 9 7 6 9 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 50 80 0 0
RAIN SHWRS SC NM O
MIX HGT 4 7 6 <1 <1 <1 <1 1 2 3 4 <1 <1 <1 <1 1 4 5 6 <1
T WIND DIR W W W W W NW N NE NE E NE N N N N N NE N N SE
T WIND SPD 17 13 16 8 3 2 2 6 11 14 9 11 12 3 3 5 8 3 0 1
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 93116114 4 2 1 1 10 23 54 47 5 6 2 2 9 43 23 0 1
MAX LVORI 1 1 1 3 4 5 6 5 3 1 1 2 3 4 4 3 1 2 2 2
STABILITY A A A G F F F B B B B G G G G A A A A G
CEILING None None None 3600 100 800 None None None None
STA PRES 27.26 27.24 27.28 27.26 27.29 27.28 27.33 27.35 27.39 27.34
Date Wed 05/13/26Thu 05/14/26Fri 05/15/26Sat 05/16/26
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 44 71 43 62 41 70 49 78
TEMP 47 49 65 62 49 45 60 57 44 45 67 65 52 54 76 72
DEWPT 39 41 47 48 44 41 37 37 37 38 40 45 43 45 49 51
RH 74 74 52 60 83 86 42 47 76 76 37 48 71 71 39 48
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW B1 B2 SC FW SC SC FW CL FW FW SC FW SC SC
POP 12HR 5 70 20 5 0 5 10 20
RAIN SHWRS SC NM IS 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