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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 AM EST Wed Jan 21 2026
NCZ006-212100-
RAWS 310801
36.37N 79.29W Elev. 580 ft
701 AM EST Wed Jan 21 2026
Date Wed 01/21/26 Thu 01/22/26 Fri 01/23/26
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 48 32 57 31 46
TEMP 31 45 47 39 38 36 34 35 46 56 56 47 38 35 33 34 40 45 46 39
DEWPT 8 15 18 20 23 25 25 25 30 33 32 30 32 29 28 28 28 29 29 27
MAX/MIN RH 28 69 38 82 51
RH 37 29 31 46 54 64 69 66 53 42 40 51 79 78 82 78 62 53 51 62
WIND DIR S S S S SW SW SW SW W W W W NW N N N N N N N
WIND SPD 3 8 8 4 4 4 4 3 4 5 4 1 1 0 1 1 2 4 4 2
CLOUDS FW FW B1 B1 B1 B2 B1 FW FW SC SC SC SC B1 B2 OV OV OV B2 OV
CLOUDS(%) 10 23 55 61 57 83 53 21 12 26 31 34 44 56 70 90 92 94 87 90
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 7 7 6 6 6 6 6
POP 12HR 0 5 10 30 50
RAIN S S C C C C C C S
MIX HGT 1 3 3 <1 <1 <1 <1 <1 1 3 3 <1 <1 <1 <1 <1 1 1 1 <1
T WIND DIR S S S S SW SW SW SW W W W SW W N N NW NE E N N
T WIND SPD 6 18 19 8 8 8 6 5 9 11 8 3 2 2 0 1 5 1 6 11
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 12 57 43 5 5 5 5 6 17 36 27 2 1 1 0 1 7 2 9 5
MAX LVORI 2 1 1 2 3 3 3 3 2 1 2 2 4 4 6 5 3 2 2 3
STABILITY B C D E E E E B C C C G F F F B C D D F
CEILING None None 12900 None None None None 18200 13300 3100
STA PRES 29.82 29.68 29.62 29.55 29.57 29.55 29.59 29.60 29.64 29.61
Date Sat 01/24/26Sun 01/25/26Mon 01/26/26Tue 01/27/26
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 20 24 13 25 14 31 2 32
TEMP 31 21 23 19 16 15 21 21 19 15 28 22 10 4 28 22
DEWPT 16 10 11 11 12 13 17 17 16 13 19 13 5 1 14 12
RH 53 62 59 70 84 92 84 84 88 92 68 68 80 87 55 65
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 OV OV OV OV OV OV B2 B1 SC SC FW FW FW FW
POP 12HR 30 80 100 90 40 20 5 5
RAIN S
SLEET S S D L
SNOW S C C D D D D L 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