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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Fri Feb 20 2026
NCZ006-210900-
RAWS 310801
36.37N 79.29W Elev. 580 ft
701 PM EST Fri Feb 20 2026
Date 02/20/26 Sat 02/21/26 Sun 02/22/26 Mon
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 48 61 39 48 30
TEMP 55 53 52 50 54 58 60 53 49 47 45 40 44 46 46 40 35 34 31 30
DEWPT 32 33 33 36 39 40 39 40 41 42 41 40 41 37 31 24 21 20 19 19
MIN/MAX RH 65 46 100 52 62
RH 41 46 48 58 57 51 46 61 74 83 86100 89 71 55 52 56 56 61 63
WIND DIR W W NW NW NW SW S S S S N N N NW NW NW NW NW NW NW
WIND SPD 6 4 4 3 4 3 3 3 3 3 2 5 8 10 11 10 10 8 9 9
WIND GUST 21 20 19 20 19
CLOUDS SC B2 B2 OV OV B2 B1 SC B1 B2 OV OV B2 B1 B2 B1 SC SC SC SC
CLOUDS(%) 26 79 79 90 90 77 63 49 56 84 94 93 78 65 70 54 41 29 33 42
VSBY 10 10 10 10 10 10 10 10 10 10 6 6 5 2 10 10
POP 12HR 20 40 70 70 10
RAIN S C C S S L L L L C C
MIX HGT <1 <1 <1 <1 1 2 2 <1 <1 <1 1 1 2 5 6 1
T WIND DIR W W NW NW SW S S S SW SW NE NE NW NW NW NW
T WIND SPD 9 5 11 11 8 3 5 3 4 2 4 3 17 21 24 14
DISPERSION PR VP VP VP VP VP VP FR FR PR PR
ADI 4 3 5 9 12 7 15 2 2 1 2 6 35 66 80 17
MAX LVORI 2 2 2 2 2 2 2 3 4 5 6 9 4 3 1 2
STABILITY F F F C C C C F F F F D D D D D
CEILING None 9100 2000 600 600 500 500 800 None
STA PRES 29.22 29.29 29.38 29.37 29.36 29.27 29.26 29.25
Date 02/23Tue 02/24/26Wed 02/25/26Thu 02/26/26Fri 02/27/26
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 44 25 48 32 59 47 61 38 56
TEMP 43 39 31 26 44 40 33 34 54 53 50 48 58 56 46 39 53 49
DEWPT 18 16 15 15 14 19 21 23 28 30 36 42 44 42 38 34 33 33
RH 36 39 51 62 29 42 61 64 36 41 58 80 59 59 73 82 46 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC FW SC SC B1 B2 B2 B2 B2 OV OV B2 B2 B1 B1 SC
POP 12HR 5 0 0 0 0 30 60 40 30
RAIN C L 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