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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
732 AM EDT Tue Apr 7 2026
NCZ001-072000-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
732 AM EDT Tue Apr 7 2026
Date Tue 04/07/26 Wed 04/08/26 Thu 04/09/26
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 51 28 48 31 56
TEMP 40 45 48 50 43 38 34 32 32 40 44 47 42 38 35 33 35 44 53 55 48
DEWPT 22 22 26 24 21 18 15 14 15 15 19 20 20 20 21 23 24 24 28 29 30
MAX/MIN RH 37 57 34 73 36
RH 48 40 42 36 41 44 45 47 49 36 36 34 41 48 56 66 64 45 38 37 49
WIND DIR NW N NW N N NE E E SE SE SE SE SE SE SE SE SE SE SE SE SE
WIND SPD 12 11 11 10 9 10 9 11 9 12 11 12 12 12 11 9 6 9 8 8 10
WIND GUST 25 21 23 23 23
CLOUDS SC SC FW FW FW FW CL CL CL FW FW SC SC SC SC SC SC SC B1 SC FW
CLOUDS(%) 40 29 6 14 9 6 4 4 5 9 18 36 41 44 47 45 44 46 51 40 25
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 5
MIX HGT <1 2 4 4 <1 <1 <1 <1 <1 1 2 2 <1 <1 <1 <1 <1 1 3 2 <1
T WIND DIR N NW NW NW N NE E E E SE SE SE SE SE SE SE SE SE SE E SE
T WIND SPD 12 17 13 11 9 6 5 12 11 9 8 11 10 9 8 4 3 5 2 2 5
DISPERSION PR FR PR FR FR FR FR PR FR
ADI 10 47 51 56 6 5 4 8 12 17 21 30 9 8 7 4 4 10 8 7 4
MAX LVORI 3 1 1 1 2 2 2 2 2 2 2 1 2 2 3 3 3 2 2 2 2
STABILITY C C C B E E E E B C C C D D D D B B B B E
CEILING None None None None None None None None None None
STA PRES 26.88 26.88 26.94 26.98 27.04 27.02 27.04 27.01 27.01 26.95
Date Fri 04/10/26Sat 04/11/26Sun 04/12/26Mon 04/13/26
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 36 65 44 68 48 69 50 70
TEMP 38 40 61 56 46 47 66 60 51 50 66 62 54 52 68 64
DEWPT 29 33 34 38 37 39 42 44 43 45 46 44 44 46 45 46
RH 70 76 36 51 71 74 42 55 74 83 48 52 69 80 43 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW CL CL FW FW FW FW FW FW SC FW SC SC SC
POP 12HR 5 5 0 10 0 0 0 0
$$
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