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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Wed Apr 8 2026
VAZ024-090800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
231 PM EDT Wed Apr 8 2026
Date 04/08/26 Thu 04/09/26 Fri 04/10/26 Sat
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 33 67 40 80 50
TEMP 59 53 44 39 34 35 51 63 66 59 49 44 40 42 63 77 79 70 60 54 51 53
DEWPT 18 19 20 22 25 28 29 29 28 29 31 31 31 33 36 38 39 42 41 42 42 43
MIN/MAX RH 78 24 72 23 72
RH 20 26 38 50 69 75 42 27 24 32 50 60 70 70 36 24 24 36 49 64 71 69
WIND DIR SE SE E E N N SE SE SE SE N N NW NW SW SW S S SW W NW NW
WIND SPD 4 2 1 1 0 0 1 3 2 1 0 0 1 1 2 3 4 2 2 2 2 2
CLOUDS FW SC SC SC FW SC SC B1 FW FW CL CL CL CL CL FW FW FW FW SC SC B1
CLOUDS(%) 21 42 35 40 23 31 40 53 25 9 3 4 4 5 4 6 17 18 18 27 46 65
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 0 5
MIX HGT 5 <1 <1 <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 2 6 8 <1
T WIND DIR SE SE E E E SE S S S SE SE S NW NW W W W SW
T WIND SPD 6 5 3 2 2 2 4 4 4 4 3 2 2 2 4 10 12 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 40 3 2 1 1 2 15 21 22 2 2 1 1 2 14 76113 2
MAX LVORI 1 2 2 2 3 3 2 2 2 2 2 3 3 3 2 1 1 2
STABILITY A F G G G A A A A G G G G A A A A G
CEILING None None None None None None None None None None
STA PRES 28.92 28.94 28.93 28.95 28.86 28.85 28.82 28.79 28.70
Date 04/11Sun 04/12/26Mon 04/13/26Tue 04/14/26Wed 04/15/26
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 80 52 79 57 86 61 92 64 91
TEMP 77 69 57 53 75 72 60 58 83 78 66 63 89 82 70 65 90 81
DEWPT 49 50 47 46 50 51 49 51 50 47 49 52 55 53 53 55 55 54
RH 37 51 69 77 41 48 67 77 32 33 54 67 32 37 55 70 31 39
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC FW SC SC SC SC B1 B1 B1 SC SC SC SC SC SC SC B1
POP 12HR 20 5 0 0 0 0 5 5 20
RAIN SHWRS 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