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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
101 PM EST Fri Feb 20 2026
NCZ006-202100-
RAWS 310801
36.37N 79.29W Elev. 580 ft
101 PM EST Fri Feb 20 2026
Date Fri 02/20/26 Sat 02/21/26 Sun 02/22/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
MAX/MIN TEMP 72 48 61 42 46
TEMP 71 62 57 54 51 49 53 56 60 53 49 46 45 43 43 45 44 41
DEWPT 45 37 33 32 33 36 40 40 40 41 41 40 40 39 39 35 29 24
MAX/MIN RH 36 61 47 88 52
RH 39 39 40 43 50 61 61 55 47 64 74 79 82 86 86 68 55 50
WIND DIR W W W W NW W NW W SE S E NE N N N NW NW NW
WIND SPD 12 6 5 3 2 2 2 2 2 1 1 2 4 6 9 13 13 12
WIND GUST 23 17
CLOUDS CL FW SC B2 B2 OV OV B2 B1 SC SC B2 OV OV B2 B1 B1 B1
CLOUDS(%) 0 12 27 86 78 91 90 70 59 47 42 75 90 94 76 63 63 51
VSBY 10 7 7 7 7 10 10 10 10 9 10 10 10 10 10 10 10 10
POP 12HR 90 10 30 70 70
RAIN S C C S S C L L C C S
RAIN SHWRS
MIX HGT 6 <1 <1 <1 <1 <1 1 2 2 <1 <1 <1 <1 2 3 4 5 2
T WIND DIR W W W W W W W S SE NE N NE NE N N NW NW NW
T WIND SPD 34 12 10 5 9 16 1 3 3 3 5 4 3 8 8 18 20 9
DISPERSION PR PR VP VP VP VP VP VP FR
ADI 156 8 5 3 6 12 2 7 9 2 3 2 2 13 19 54 64 12
MAX LVORI 1 2 2 2 2 2 3 3 2 3 4 4 5 4 4 1 1 2
STABILITY C E F F E C C C C F F F E D D D D D
CEILING None None 10200 3800 None None 3400 500 500
STA PRES 29.11 29.23 29.32 29.36 29.36 29.38 29.32 29.34 29.32
Date Mon 02/23/26Tue 02/24/26Wed 02/25/26Thu 02/26/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MIN/MAX TEMP 30 46 26 47 31 55 44 61
TEMP 35 31 43 39 32 27 45 40 32 33 52 52 48 46 58 55
DEWPT 21 19 18 16 17 16 16 18 19 22 25 28 33 40 43 40
RH 56 61 36 39 53 63 31 41 58 63 35 39 56 79 57 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC B1 B1 SC SC FW FW SC B1 B2 B2 OV OV OV B2
POP 12HR 10 5 0 0 0 0 40 40
RAIN S C C C
$$
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