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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
603 PM EST Thu Feb 26 2026
NCZ003-270900-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
603 PM EST Thu Feb 26 2026
Date 02/26/26 Fri 02/27/26 Sat 02/28/26 Sun
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
MIN/MAX TEMP 39 58 42 66 41
TEMP 52 49 46 42 40 47 54 57 52 47 45 43 42 51 61 64 57 51 47 43 42
DEWPT 48 46 43 41 38 42 41 42 42 42 41 42 41 44 43 41 42 41 40 39 38
MIN/MAX RH 97 57 97 43 88
RH 86 89 89 96 92 83 61 57 69 83 86 96 96 77 51 43 57 68 76 86 86
WIND DIR N NE NE NE NE NE E SE SE E NE N N NW W SW S W W W W
WIND SPD 3 4 4 3 4 3 3 3 3 2 2 2 2 2 2 2 2 3 3 3 3
CLOUDS B2 SC SC B1 B2 B2 SC SC SC SC SC SC SC FW FW CL CL CL FW CL FW
CLOUDS(%) 77 46 45 67 72 75 40 33 39 35 48 47 44 21 8 5 4 5 6 5 6
VSBY 9 7 5 5 5 10 10 10 10 9 5 1 10 10 10 10 10 10 10 10 10
POP 12HR 20 0 5 5 0
RAIN SHWRS IS
MIX HGT <1 <1 <1 <1 <1 1 3 4 <1 <1 <1 <1 <1 1 4 6 <1
T WIND DIR N N N N N N E E E E NE N N NW NW W SW
T WIND SPD 0 2 2 3 3 4 8 5 8 6 4 4 2 4 6 4 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 0 2 2 2 4 6 34 29 4 3 2 2 2 7 31 30 2
MAX LVORI 6 6 7 8 6 4 1 2 3 5 6 6 8 4 1 2 3
STABILITY F E E F D C B B G G F F B B B B G
CEILING None 1700 800 None None None None None None
STA PRES 28.88 28.96 29.07 29.04 29.05 29.01 29.01 28.96
Date 03/01Mon 03/02/26Tue 03/03/26Wed 03/04/26Thu 03/05/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MAX/MIN TEMP 66 35 41 32 42 37 58 44 64
TEMP 66 55 45 36 40 38 35 33 40 40 39 38 53 53 49 45 60 59
DEWPT 40 36 34 29 29 29 27 26 28 30 33 35 43 43 43 42 49 49
RH 38 49 65 75 64 70 72 75 62 67 79 89 69 69 80 89 67 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW B1 B2 OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B2
POP 12HR 0 20 40 30 30 40 30 20 30
RAIN S C C C C C C C C C S S C S
SNOW S
$$
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