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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EST Fri Feb 20 2026
VAZ012-210900-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
1231 AM EST Fri Feb 20 2026
Date 02/19/26 Fri 02/20/26 Sat 02/21/26 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 49 64 38 55 32
TEMP 50 52 53 59 62 59 51 46 43 40 39 46 53 55 48 41 38 35 32
DEWPT 49 50 50 49 37 30 28 27 29 30 31 33 33 33 33 32 31 31 28
MIN/MAX RH 100 33 73 43 87
RH 96 93 89 69 39 33 41 47 57 67 73 60 46 43 56 70 76 85 85
WIND DIR SE S W W W W W W W W W W W W NW NW NW NW NW
WIND SPD 5 5 8 13 17 17 11 12 3 2 2 2 2 2 2 2 2 3 5
WIND GUST 27 28
CLOUDS OV OV OV B1 CL CL FW FW SC SC B1 B2 B1 SC B1 B1 B1 B2 B2
CLOUDS(%) 100100100 62 5 3 13 20 38 46 63 73 67 49 52 54 64 72 70
VSBY 0 1 2 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 70 50 20 30 50
DRIZZLE ? ?
RAIN S S C C S S C
RAIN SHWRS SC
SNOW S C C
Obvis F F PF
MIX HGT <1 <1 1 3 5 5 1 1 <1 <1 <1 <1 2 3 <1
T WIND DIR SE SE S SW W W W W W W W W W W W
T WIND SPD 4 6 5 4 33 33 11 10 9 8 6 9 18 20 6
DISPERSION PR PR FR FR VP VP VP VP VP VP
ADI 2 3 7 11200200 5 5 4 4 5 11 42 80 3
MAX LVORI 8 8 6 3 1 1 2 2 3 3 3 2 1 1 3
STABILITY F F C D B B F F G F C C C B F
CEILING 500 None None None None 4200 None None
STA PRES 26.98 26.96 26.99 27.07 27.11 27.17 27.16
Date 02/22Mon 02/23/26Tue 02/24/26Wed 02/25/26Thu 02/26/26
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 38 21 30 19 39 24 51 37 51
TEMP 37 29 24 22 30 24 22 19 36 31 26 29 50 42 42 38 51 44
DEWPT 20 16 17 13 13 12 12 11 11 12 13 14 21 27 33 34 36 34
RH 50 58 74 68 49 60 65 70 35 45 57 53 31 55 70 85 56 68
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC B1 B2 B2 B2 B2 B2 B1
POP 12HR 30 40 20 10 0 5 20 60 50
RAIN S C L C C
SNOW C S C C S 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