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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
433 AM EDT Thu Apr 9 2026
VAZ018-092000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
433 AM EDT Thu Apr 9 2026
Date Thu 04/09/26 Fri 04/10/26 Sat 04/11/26
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 42 78 52 76
TEMP 33 34 51 58 63 57 51 48 45 45 66 75 77 67 58 55 52 54 66 73 75 66
DEWPT 25 27 28 30 31 29 29 28 26 30 38 39 40 39 38 38 40 44 51 49 46 45
MAX/MIN RH 30 58 26 71 35
RH 72 75 41 34 30 34 42 46 47 55 36 27 26 36 47 53 63 69 58 43 36 47
WIND DIR E S S S S SE S SW W NW W W W W W W W NW NW NW NW NW
WIND SPD 1 1 2 3 3 4 3 3 4 1 1 2 3 2 2 3 2 3 3 5 3 2
WIND GUST 13 13 14 16 17 13
CLOUDS B1 B1 SC SC FW FW CL CL CL FW CL CL CL FW FW FW SC B1 SC SC SC FW
CLOUDS(%) 52 55 33 30 25 12 3 4 5 6 2 5 4 7 11 15 37 56 29 39 38 14
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 20
RAIN SHWRS IS IS
MIX HGT <1 <1 2 3 3 <1 <1 <1 <1 <1 2 6 7 <1 <1 <1 <1 <1 4 5 5 <1
T WIND DIR SE SE S S S SE SE SW W W W W W W W W W NW NW NW NW W
T WIND SPD 2 2 5 3 2 5 3 2 2 3 8 10 10 4 5 8 10 10 17 11 5 2
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 1 2 13 12 9 3 2 1 1 3 22 72 86 2 3 4 5 11 79 76 38 1
MAX LVORI 3 4 2 2 2 2 2 2 2 3 2 1 1 2 2 2 3 3 1 1 1 2
STABILITY F A A A A F G G F A A A A G G G G B A A A G
CEILING None None None None None None None None None None
STA PRES 28.18 28.11 28.12 28.08 28.08 27.99 28.00 28.01 28.06 28.05
Date Sun 04/12/26Mon 04/13/26Tue 04/14/26Wed 04/15/26
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 52 78 58 82 59 87 61 88
TEMP 54 53 74 70 60 60 80 73 62 61 84 77 66 63 86 77
DEWPT 43 46 51 47 46 47 47 46 48 51 54 52 51 52 54 50
RH 66 77 44 44 60 62 31 38 60 70 36 42 58 67 34 39
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC SC SC B1 B1 B1 SC SC SC SC SC SC SC SC
POP 12HR 5 0 0 5 0 5 5 10
$$
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