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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 PM EDT Tue Apr 7 2026
NCZ001-080800-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
802 PM EDT Tue Apr 7 2026
Date 04/07/26 Wed 04/08/26 Thu 04/09/26 Fri
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 30 49 31 57 38
TEMP 39 35 31 30 36 46 47 41 39 35 32 34 45 54 56 49 42 39 40 42
DEWPT 18 15 14 15 14 19 18 18 20 20 22 24 25 28 30 30 30 28 29 31
MIN/MAX RH 55 31 68 35 67
RH 42 43 49 53 40 34 31 39 46 54 66 66 45 36 37 48 62 64 64 65
WIND DIR NE E E E SE SE SE SE SE SE SE SE SE SE SE SE S S W W
WIND SPD 8 9 11 11 10 9 9 11 10 9 8 5 6 5 6 9 6 5 5 6
CLOUDS CL CL CL FW FW SC SC SC SC B1 SC SC SC SC FW CL CL CL CL CL
CLOUDS(%) 4 5 5 6 6 28 39 43 50 57 43 50 33 34 24 4 4 5 4 5
VSBY 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 <1 <1 <1 1 2 2 <1 <1 <1 <1 <1 1 3 3 <1
T WIND DIR NE E E E SE SE SE SE SE SE SE SE S N W S
T WIND SPD 8 6 12 10 10 8 10 10 9 8 5 3 3 1 1 4
DISPERSION PR PR FR FR FR PR PR PR PR PR PR
ADI 5 5 11 8 19 23 29 9 8 7 5 3 6 4 4 3
MAX LVORI 2 2 2 2 2 2 2 2 2 2 3 3 2 2 2 2
STABILITY E E D C C B C D D D D A B A B E
CEILING None None None None None None None None None
STA PRES 26.92 26.96 27.01 26.99 27.01 26.98 26.98 26.93
Date 04/10Sat 04/11/26Sun 04/12/26Mon 04/13/26Tue 04/14/26
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 66 45 67 48 68 50 68 52 72
TEMP 64 56 47 49 64 60 51 50 64 61 54 52 66 63 56 55 69 65
DEWPT 35 38 36 38 43 45 44 46 45 44 45 47 45 46 46 49 49 48
RH 34 51 65 66 46 58 77 86 50 53 71 83 47 54 69 80 49 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL CL FW SC SC FW FW FW SC FW SC SC B1 SC SC SC SC
POP 12HR 0 0 10 0 0 0 5 0 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