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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 AM EDT Fri Apr 10 2026
VAZ024-102000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
802 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 80 52 80 50 80
TEMP 65 78 80 71 61 56 54 55 71 78 79 70 60 54 51 52 64 75 79 73
DEWPT 35 38 38 40 41 40 42 46 52 50 46 47 46 45 45 45 49 51 51 50
MAX/MIN RH 22 73 31 80 37
RH 33 24 22 32 48 55 64 72 51 37 31 44 60 71 80 77 58 43 38 44
WIND DIR SW SW SW SW SW W W W N NW NW E E E E SE S S S S
WIND SPD 2 4 4 2 2 2 2 2 2 3 2 2 2 1 1 1 3 5 5 3
WIND GUST 14 16
CLOUDS CL CL FW FW FW SC SC B1 FW FW FW FW FW SC SC B1 SC SC SC SC
CLOUDS(%) 0 0 6 6 10 27 38 60 25 22 22 15 19 27 38 51 36 42 38 38
VSBY 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 0
MIX HGT 2 6 8 <1 <1 <1 <1 <1 5 7 7 <1 <1 <1 <1 2 3 4 5 <1
T WIND DIR W W SW S SW W NW NW NW NW NW E E E E SE S S S S
T WIND SPD 5 9 12 4 3 4 4 3 6 11 9 2 4 8 6 11 9 9 14 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 16 71118 2 2 2 2 3 42 94 79 1 2 4 3 23 36 46101 3
MAX LVORI 2 1 1 2 2 3 3 3 1 1 1 2 3 3 4 3 1 1 1 2
STABILITY A A A G G G G 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 28.79 28.70 28.70 28.71 28.77 28.74 28.79 28.82 28.85 28.74
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 59 83 58 90 62 93 64 91
TEMP 64 62 81 76 62 59 87 80 67 64 90 83 69 66 89 82
DEWPT 48 50 50 49 49 51 56 56 55 56 55 53 53 55 54 52
RH 56 65 34 39 62 75 35 44 65 75 31 36 57 68 30 35
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B2 B1 SC SC SC SC SC SC SC B1 SC B1 SC SC
POP 12HR 0 10 0 10 0 10 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