
A winter storm will impact our area this weekend. The winter storm will be followed by very cold temperatures and wind chills early next week. Read More >
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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 PM EST Fri Jan 23 2026
NCZ003-232100-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
1231 PM EST Fri Jan 23 2026
Date Fri 01/23/26 Sat 01/24/26 Sun 01/25/26
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 49 21 26 16 27
TEMP 47 48 39 33 28 25 23 23 26 25 21 19 18 17 18 18 20 22 24
DEWPT 18 19 17 14 11 7 3 3 2 1 7 12 13 14 15 17 19 21 23
MAX/MIN RH 30 47 34 92 86
RH 31 31 40 45 48 46 41 41 35 34 54 74 80 88 88 96 96 96 96
WIND DIR NW NW N N N NE NE NE E E NE E NE NE NE NE NE E E
WIND SPD 2 4 9 8 6 9 10 9 8 8 11 11 10 10 9 5 4 3 3
CLOUDS SC FW FW SC SC SC SC SC B2 OV OV OV OV OV OV OV OV OV OV
CLOUDS(%) 41 21 19 30 42 45 35 49 79 95 98 98100100100100 99 99 94
VSBY 10 10 10 10 10 10 10 10 10 10 7 5 6 6 4 2 2 1 2
POP 12HR 0 0 40 100 100
FRZG RAIN S S S D D D D
SLEET D D D D D D D S
SNOW S D D S
MIX HGT 2 3 <1 <1 <1 <1 1 2 3 2 2 2 2 1 1 2 1 1 1
T WIND DIR S SW SW N N NE NE NE E E E E NE NE NE E E E E
T WIND SPD 1 3 1 12 12 14 17 16 13 17 19 16 14 13 14 11 5 4 2
DISPERSION PR PR PR PR FR FR FR FR VP
ADI 3 14 1 8 11 13 26 34 30 37 26 22 17 15 23 19 9 6 1
MAX LVORI 2 2 2 2 2 2 2 1 1 1 2 3 3 4 4 5 8 6 8
STABILITY C B F E D D D D D D D D D D D D D D F
CEILING None None None 10600 4200 2200 900 800 400
STA PRES 29.17 29.25 29.31 29.42 29.36 29.31 29.19 29.11 28.94
Date Mon 01/26/26Tue 01/27/26Wed 01/28/26Thu 01/29/26
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 25 -1 29 13 32 11 26
TEMP 26 23 24 19 11 0 23 21 15 15 28 25 16 12 23 19
DEWPT 24 19 16 7 2 -5 11 11 7 9 18 16 8 5 10 8
RH 92 84 71 59 66 79 59 65 70 77 66 68 70 73 57 61
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B1 FW FW FW CL CL FW FW SC SC B1 B1 B1 SC SC
POP 12HR 80 5 0 0 0 0 10 10
FRZG RAIN D C
SLEET S
SNOW C
$$
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