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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
931 PM EST Thu Feb 19 2026
NCZ018-200900-
RAWS 311941
36.22N 81.63W Elev. 3254 ft
931 PM EST Thu Feb 19 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 51 60 41 52 32
TEMP 52 52 52 53 55 58 56 50 47 44 43 42 46 51 52 47 43 41 37 33
DEWPT 50 50 51 52 49 36 30 28 28 29 29 32 36 38 39 38 37 36 34 30
MIN/MAX RH 97 36 69 57 91
RH 93 93 96 96 80 44 37 42 47 55 57 67 68 61 61 71 79 82 89 89
WIND DIR SW S SW W W W W W W W NW NW NW W W W NW NW NW NW
WIND SPD 3 3 4 6 16 21 19 11 9 6 5 5 3 4 5 2 2 4 10 16
WIND GUST 31 35 34 27 23 19 16 21 31
CLOUDS B2 OV OV OV B2 SC SC FW SC B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 B2
CLOUDS(%) 74 91 91 93 73 41 30 15 31 51 62 80 77 67 58 52 52 61 65 71
VSBY 10 6 3 6 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 40 40 30 50 40
RAIN S C C C C C S S S S C C
SNOW C S
Obvis PF PF PF
MIX HGT <1 <1 <1 <1 3 5 5 2 1 <1 <1 <1 <1 2 2 <1
T WIND DIR S SE SE SW SW W W W W NW NW W NW NW NW NW
T WIND SPD 2 3 2 1 5 36 31 12 12 13 10 5 10 16 18 9
DISPERSION VP VP VP FR PR PR PR VP VP VP FR
ADI 1 2 2 1 13109 96 8 8 9 7 6 8 29 52 4
MAX LVORI 10 8 10 8 4 1 1 2 2 2 3 3 3 2 1 3
STABILITY F F E D D D D E E E E D C D B F
CEILING 600 600 None None 6000 3500 13300 None
STA PRES 26.63 26.63 26.66 26.73 26.75 26.79 26.79
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 35 19 27 17 38 24 46 36 48
TEMP 34 26 23 20 26 22 21 18 34 30 25 26 44 42 41 37 48 44
DEWPT 22 14 14 12 12 11 11 10 11 12 10 12 21 27 33 36 39 36
RH 61 60 68 71 55 62 65 70 38 46 52 55 39 55 73 96 71 73
WIND SPD 15> 15> 15> 15> <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC B1 B2 B2 B2 B2 B2 B1
POP 12HR 20 20 10 5 0 0 10 50 50
RAIN C C C C
SNOW S 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
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