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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Tue Apr 14 2026
NCZ003-150800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
801 PM EDT Tue Apr 14 2026
Date 04/14/26 Wed 04/15/26 Thu 04/16/26 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 60 87 60 86 62
TEMP 70 65 61 62 78 85 87 79 72 66 61 62 76 84 86 80 72 66 63 64
DEWPT 53 54 53 53 52 50 51 51 51 50 51 52 55 53 51 52 51 51 52 54
MIN/MAX RH 77 29 72 31 72
RH 55 68 75 72 40 30 29 38 48 56 70 70 48 34 30 38 48 58 67 70
WIND DIR SW W W W W SW SW SW SW SW SW W SW SW SW SW SW W W W
WIND SPD 5 4 3 2 3 5 6 6 5 5 4 3 5 8 10 10 8 5 5 5
CLOUDS FW FW FW CL FW CL SC B1 SC B1 B1 SC SC SC SC FW FW SC SC FW
CLOUDS(%) 8 22 11 2 8 5 31 55 40 58 51 39 34 39 27 18 14 33 34 20
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 10
MIX HGT <1 <1 <1 <1 3 7 7 <1 <1 <1 <1 <1 4 7 8 <1
T WIND DIR SW SW W NW W SW SW SW SW SW SW SW W SW SW SW
T WIND SPD 5 3 2 1 6 9 11 3 5 4 2 2 8 10 14 5
DISPERSION PR VP VP PR PR PR VP FR PR PR PR
ADI 3 2 1 1 23 73 84 2 3 3 2 2 37 74120 4
MAX LVORI 3 3 3 3 2 1 1 2 2 3 3 3 1 1 1 2
STABILITY F F G A A A B E F E E A A B B E
CEILING None None None None None None None None None
STA PRES 29.03 29.01 29.04 28.99 28.98 28.96 28.97 28.89
Date 04/17Sat 04/18/26Sun 04/19/26Mon 04/20/26Tue 04/21/26
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 87 60 91 58 74 42 67 40 70
TEMP 84 79 63 63 88 83 70 61 72 67 52 43 63 60 44 43 66 63
DEWPT 51 50 50 50 51 52 52 51 42 34 29 26 23 23 26 27 29 28
RH 32 36 62 62 28 34 53 70 34 29 41 51 21 24 49 53 25 26
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW SC SC SC B1 B1 B1 B2 B1 FW FW CL CL FW FW FW FW
POP 12HR 5 0 0 10 40 10 5 0 0
RAIN SHWRS SC SC
$$
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