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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun Apr 12 2026
NCZ003-122000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM EDT Sun Apr 12 2026
Date Sun 04/12/26 Mon 04/13/26 Tue 04/14/26
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 79 53 82 54 87
TEMP 64 74 78 72 64 60 57 57 71 79 80 73 64 59 56 59 74 84 84 77
DEWPT 52 53 51 51 50 50 50 51 52 51 51 51 50 50 48 50 53 55 56 55
MAX/MIN RH 39 83 36 75 37
RH 65 48 39 48 60 69 77 80 51 38 36 46 60 72 74 72 48 37 38 47
WIND DIR E SE S S SW S S S SW SW SW SW SW W W W W SW SW SW
WIND SPD 3 4 6 2 2 2 3 2 6 8 6 3 1 1 1 1 2 4 4 2
CLOUDS SC SC SC SC SC B1 SC B1 B1 B1 B1 B1 SC FW SC SC SC SC SC SC
CLOUDS(%) 49 30 27 32 34 63 49 53 54 58 64 57 26 16 32 39 40 38 49 37
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 5 5 10
MIX HGT 2 4 6 <1 <1 <1 <1 <1 3 6 6 <1 <1 <1 <1 <1 3 7 7 <1
T WIND DIR E SE S SE NW S SW S SW W W SW SW SW NW NW W SW SW S
T WIND SPD 6 5 8 2 1 2 5 6 14 13 10 5 5 2 2 2 5 9 11 8
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 20 28 54 1 1 1 3 8 53 97 73 3 3 1 1 2 23 77 92 4
MAX LVORI 3 2 1 2 3 3 4 4 1 1 1 2 3 3 3 3 2 1 1 2
STABILITY A A B G G F F B B B B F G G G A A A A G
CEILING None None None None None 9700 None None None None
STA PRES 28.45 28.41 28.39 28.37 28.37 28.32 28.29 28.26 28.28 28.21
Date Wed 04/15/26Thu 04/16/26Fri 04/17/26Sat 04/18/26
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 57 90 58 89 60 88 59 90
TEMP 62 61 87 80 64 61 86 81 65 62 86 80 64 62 88 82
DEWPT 52 48 51 52 51 50 52 51 52 55 54 53 52 53 55 55
RH 70 62 29 38 63 67 31 35 63 78 34 39 65 72 33 40
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC FW SC SC B1
POP 12HR 0 0 0 5 10 10 5 20
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