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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
502 AM EDT Wed Apr 8 2026
VAZ024-082000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
502 AM EDT Wed Apr 8 2026
Date Wed 04/08/26 Thu 04/09/26 Fri 04/10/26
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 58 32 67 40 80
TEMP 34 46 53 57 50 43 39 36 38 51 63 66 58 49 43 40 43 64 76 79 70
DEWPT 19 18 18 19 21 21 24 24 27 30 30 30 32 33 32 32 34 40 43 43 45
MAX/MIN RH 22 71 25 76 27
RH 54 32 25 22 31 41 54 61 64 44 29 26 37 54 65 73 70 41 31 28 41
WIND DIR N E SE SE SE E E SE N SE S S SE N W NW NW SW SW SW S
WIND SPD 2 4 6 5 2 2 1 1 0 1 3 2 1 0 1 1 1 2 3 4 2
CLOUDS CL CL CL FW FW FW SC SC SC SC B1 SC FW CL CL CL FW CL CL FW FW
CLOUDS(%) 0 0 0 7 19 23 37 31 37 50 55 26 7 4 5 4 6 4 5 16 8
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 0 0 0 0
MIX HGT 1 3 4 4 <1 <1 <1 <1 <1 3 3 4 <1 <1 <1 <1 <1 2 6 7 <1
T WIND DIR NE E E SE SE E E E SE S S S SE SE SW NW NW W W W SW
T WIND SPD 11 8 6 8 5 3 2 2 3 4 5 5 3 2 2 2 2 6 9 12 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 22 34 34 43 3 2 1 1 4 15 25 27 2 1 1 1 2 22 68109 2
MAX LVORI 2 1 1 1 2 2 2 3 3 2 2 2 2 2 3 3 3 2 1 1 2
STABILITY A A B A G 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 28.96 28.92 28.94 28.93 28.94 28.85 28.84 28.80 28.78 28.69
Date Sat 04/11/26Sun 04/12/26Mon 04/13/26Tue 04/14/26
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 49 79 53 79 56 84 60 89
TEMP 54 52 76 69 57 55 75 72 60 58 82 77 65 63 86 80
DEWPT 43 44 51 51 48 48 51 51 49 51 52 50 51 53 57 56
RH 66 74 42 53 72 77 43 48 67 77 35 39 60 70 37 44
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B1 SC FW SC SC FW SC SC SC B1 SC SC SC SC
POP 12HR 5 20 5 0 0 0 0 10
RAIN SHWRS 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