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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 AM EDT Sat Apr 11 2026
NCZ001-112000-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
802 AM EDT Sat Apr 11 2026
Date Sat 04/11/26 Sun 04/12/26 Mon 04/13/26
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 67 47 67 53 69
TEMP 59 65 65 59 54 52 51 50 59 66 65 60 58 57 55 55 63 68 67 61
DEWPT 44 44 44 47 47 46 45 44 47 44 44 45 44 44 45 45 43 42 43 44
MAX/MIN RH 45 82 44 71 38
RH 57 46 46 64 77 80 80 80 64 45 46 58 59 62 69 69 48 39 42 53
WIND DIR NW NW NW NW NE SE SE SE SE S S S S S S SW SW W SW SW
WIND SPD 13 10 8 6 5 5 6 9 10 12 14 16 16 17 16 13 16 14 12 11
CLOUDS FW SC FW SC FW FW SC SC SC SC SC FW SC SC B1 B1 B1 B1 B1 B1
CLOUDS(%) 24 33 20 26 24 19 32 42 26 36 33 23 29 45 53 58 62 61 63 59
VSBY 10 10 10 10 10 10 10 8 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 5 0 5
MIX HGT 3 5 5 <1 <1 <1 <1 <1 1 3 3 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR NW NW NW NW N E SE SE S SW S S S S SW SW W W SW SW
T WIND SPD 21 14 10 4 2 1 3 4 11 16 14 11 11 6 8 5 24 21 16 5
DISPERSION PR PR PR PR GD GD GD GD FR
ADI 67 84 62 2 1 1 2 5 17 49 49 10 10 6 7 4 62 69 50 5
MAX LVORI 1 1 1 3 4 6 5 4 2 1 1 2 2 3 3 3 1 1 1 2
STABILITY C B B F F F F B B C C D D D D C D D D D
CEILING None None None None None None None None 9000 4400
STA PRES 26.95 26.93 26.96 26.98 27.01 26.96 26.95 26.92 26.93 26.88
Date Tue 04/14/26Wed 04/15/26Thu 04/16/26Fri 04/17/26
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 53 74 56 76 57 76 58 75
TEMP 55 56 70 66 57 57 73 68 60 60 73 69 61 60 73 69
DEWPT 44 45 48 49 48 46 45 46 45 48 49 48 49 51 49 50
RH 66 66 45 54 72 67 37 45 58 64 43 47 65 72 43 51
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC SC SC SC SC B1 B1 B1 SC B1 SC SC
POP 12HR 0 10 0 5 0 10 5 20
RAIN SHWRS IS
TSTMS 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