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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
403 PM EST Wed Feb 25 2026
NCZ003-260900-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
403 PM EST Wed Feb 25 2026
Date 02/25/26 Thu 02/26/26 Fri 02/27/26 Sat
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 44 54 40 53 40
TEMP 55 51 48 46 46 48 52 54 51 48 45 42 41 45 50 53 49 46 44 42 41
DEWPT 37 39 42 44 44 47 48 47 45 43 42 40 40 43 43 43 42 41 40 40 38
MIN/MAX RH 99 76 97 68 92
RH 51 63 80 93 93 96 86 77 80 83 89 93 96 93 77 69 77 83 86 93 89
WIND DIR W SW W N SE SW NW NE NE NE NE NE NE NE E E E E NE N NW
WIND SPD 10 5 4 3 4 4 4 4 3 4 4 4 5 4 4 3 3 2 2 2 2
CLOUDS B2 B2 OV OV OV OV OV B2 SC B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC
CLOUDS(%) 76 85 97 96 96 95 93 77 48 67 68 60 61 59 52 64 32 29 32 37 32
VSBY 10 10 8 4 2 3 7 9 10 10 6 6 7 7 10 10 10 10 10 10
POP 12HR 90 80 30 20 10
RAIN D D C S S C C S S
RAIN SHWRS O SC
MIX HGT 1 <1 <1 <1 <1 <1 1 2 <1 <1 <1 <1 <1 1 3 5 <1
T WIND DIR SW W S S NE NE NE NE E NE E NE NE E E SE E
T WIND SPD 8 8 4 2 3 4 5 6 4 5 3 4 6 4 6 4 6
DISPERSION FR PR VP VP VP VP VP VP VP VP VP VP
ADI 7 5 3 1 4 5 9 15 2 4 2 3 8 7 17 19 3
MAX LVORI 2 3 4 7 8 9 5 4 4 5 6 6 6 6 3 3 4
STABILITY D E E F D D D D F E E E D D D C G
CEILING 10100 1800 1200 1000 2300 1000 500 None None
STA PRES 28.84 28.83 28.81 28.83 28.94 29.00 29.08 29.03
Date 02/28Sun 03/01/26Mon 03/02/26Tue 03/03/26Wed 03/04/26
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 64 41 64 38 46 32 43 37 58
TEMP 60 56 48 43 63 55 46 40 43 43 39 33 39 41 40 39 55 53
DEWPT 41 41 39 37 40 38 35 32 33 32 31 28 28 30 33 34 42 41
RH 49 57 71 79 43 53 65 73 67 65 73 82 64 65 76 82 61 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL CL SC B1 B2 B2 OV OV OV OV OV OV OV OV B2 B1
POP 12HR 5 0 5 20 50 40 40 40 40
RAIN S C C C C C C C C C 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