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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 AM EDT Fri Apr 10 2026
VAZ018-102000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
631 AM EDT Fri Apr 10 2026
Date Fri 04/10/26 Sat 04/11/26 Sun 04/12/26
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 78 54 75 51 77
TEMP 44 67 76 77 66 60 57 54 56 68 74 75 66 57 53 51 52 63 73 77 70
DEWPT 30 35 37 35 35 36 38 43 47 52 49 46 44 44 43 43 46 50 51 49 47
MAX/MIN RH 21 73 35 79 38
RH 57 30 24 22 32 41 49 66 72 57 41 36 45 62 69 74 80 62 46 37 44
WIND DIR NW W W W W W W NW NW NW NW NW NW NE E SE SE SE S S S
WIND SPD 1 2 3 3 2 2 3 3 3 4 5 3 2 1 1 2 2 4 5 5 5
WIND GUST 14 16 12 16 14 14 18 17 13 17 18 20 19
CLOUDS CL CL CL FW FW FW SC SC B1 SC SC FW FW FW SC SC SC SC SC SC SC
CLOUDS(%) 0 0 5 7 8 11 29 44 66 33 28 19 12 16 26 38 49 35 46 50 42
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 5 5 5 5
MIX HGT <1 3 6 8 <1 <1 <1 <1 <1 3 5 6 <1 <1 <1 <1 1 2 3 6 <1
T WIND DIR W W W W W W W NW NW NW NW W N N E SE SE SE SW S S
T WIND SPD 3 10 10 12 5 5 8 6 5 9 14 9 2 2 3 8 9 5 11 13 10
DISPERSION VP VP VP VP VP VP VP VP PR
ADI 3 37 79115 3 3 4 3 6 39 99 63 1 1 2 4 12 14 47 96 7
MAX LVORI 3 1 1 1 2 2 2 3 3 1 1 1 2 3 3 3 4 2 1 1 2
STABILITY A A A A G G G F B A A A G G G G A A A A E
CEILING None None None None None None None None None None
STA PRES 28.06 27.98 27.99 28.00 28.04 28.01 28.06 28.07 28.10 28.00
Date Mon 04/13/26Tue 04/14/26Wed 04/15/26Thu 04/16/26
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 60 80 58 86 61 89 63 87
TEMP 62 61 78 71 61 60 84 75 64 63 87 79 67 65 84 76
DEWPT 45 47 49 46 47 49 54 53 53 53 52 50 50 53 52 50
RH 54 60 36 41 60 67 36 46 67 70 30 36 54 65 33 40
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B2 B1 FW SC SC SC SC SC SC B1 B1 B1 B1 B1
POP 12HR 0 20 5 20 0 10 5 20
RAIN SHWRS IS IS IS
TSTMS 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