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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
201 AM EST Tue Feb 17 2026
NCZ001-180900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
201 AM EST Tue Feb 17 2026
Date 02/16/26 Tue 02/17/26 Wed 02/18/26 Thu
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 40 56 43 55 48
TEMP 42 42 49 54 52 46 45 45 44 45 49 51 53 51 51 50 49 49
DEWPT 31 30 36 37 38 39 38 36 38 38 41 45 46 46 47 47 47 47
MIN/MAX RH 74 51 80 75 93
RH 65 62 61 52 59 76 76 70 79 76 74 80 77 83 86 89 93 93
WIND DIR W W W SW S SW SW SW SW W W W W W W W W SW
WIND SPD 10 11 5 6 9 10 11 12 12 12 16 18 17 16 14 12 9 6
CLOUDS FW FW SC SC B1 B2 OV B2 B2 B2 B2 OV B2 B2 B2 OV B2 B2
CLOUDS(%) 11 18 36 42 65 74 89 87 87 80 73 90 86 81 86 90 83 82
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 6 4 0 1
POP 12HR 0 0 0 5 30
RAIN SHWRS SC SC SC
MIX HGT <1 <1 1 3 2 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1
T WIND DIR SW SW W SW SW S S S SW SW W W W W W W W SW
T WIND SPD 4 2 2 9 5 9 9 8 6 6 20 24 18 9 8 6 3 2
DISPERSION FR FR FR FR FR GD GD FR PR
ADI 3 2 4 31 15 8 8 7 6 5 34 57 36 8 7 6 3 3
MAX LVORI 3 3 3 1 2 4 4 3 4 4 3 3 3 4 5 5 6 6
STABILITY E C B B C D D D D C D D D D D D D D
CEILING None 14300 14400 15900 16900 200 8600 300
STA PRES 26.79 26.73 26.69 26.61 26.59 26.56 26.57 26.57
Date 02/19Fri 02/20/26Sat 02/21/26Sun 02/22/26Mon 02/23/26
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 56 49 54 40 46 30 32 19 27
TEMP 52 53 49 51 52 50 45 41 43 42 38 31 31 29 25 20 24 23
DEWPT 49 48 47 46 42 35 32 34 33 31 30 26 22 18 16 12 11 10
RH 89 83 93 83 69 56 60 76 67 65 73 81 69 63 68 71 57 57
WIND SPD <15 <15 15> 15> <15 15> 15> 15> 15>
AVG CLOUDS B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 SC
POP 12HR 50 50 50 40 50 50 40 20 10
RAIN C C C S C C C C C
RAIN SHWRS SC SC
SNOW 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