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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EST Thu Jan 15 2026
NCZ006-160900-
RAWS 310801
36.37N 79.29W Elev. 580 ft
1231 AM EST Thu Jan 15 2026
Date 01/14/26 Thu 01/15/26 Fri 01/16/26 Sat
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 25 38 18 44 32
TEMP 43 34 28 31 35 35 28 24 23 21 20 30 40 43 37 35 35 33 35
DEWPT 32 19 14 11 7 3 6 6 6 6 7 9 8 9 12 13 16 18 21
MIN/MAX RH 72 26 57 23 57
RH 65 54 55 43 30 25 38 45 47 52 56 41 26 24 35 40 45 53 56
WIND DIR NW NW W NW NW NW W W W W SW SW SW SW S S SW S SW
WIND SPD 8 9 8 10 11 12 6 5 3 3 2 5 10 10 4 5 5 5 5
WIND GUST 20 18 20 23 23
CLOUDS B1 FW FW FW SC FW FW CL FW CL SC FW FW FW FW SC B1 B1 B2
CLOUDS(%) 55 15 7 18 26 22 10 2 6 5 29 25 20 11 13 36 66 68 79
VSBY 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 0 0 0 10
RAIN C
SPRINKLES
MIX HGT 1 2 1 4 6 7 <1 1 <1 <1 <1 2 3 3 <1
T WIND DIR W NW NW NW W NW W W W W SW SW S SW S
T WIND SPD 12 25 20 23 20 23 20 21 18 14 6 13 17 24 8
DISPERSION PR PR PR PR VP VP VP PR PR PR
ADI 11 28 35 67 67 79 14 10 8 7 7 34 55 83 4
MAX LVORI 2 2 1 1 1 1 2 2 2 2 3 1 1 1 2
STABILITY D D C D D D E F F F B C C C F
CEILING None None None None None None None None
STA PRES 29.06 29.15 29.16 29.29 29.36 29.41 29.38
Date 01/17Sun 01/18/26Mon 01/19/26Tue 01/20/26Wed 01/21/26
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 52 25 37 16 41 17 37 17 43
TEMP 50 42 34 26 35 30 20 17 39 34 24 18 35 29 21 17 39 34
DEWPT 32 28 24 17 14 10 9 8 11 13 10 9 7 5 4 5 8 12
RH 50 57 66 68 41 42 62 67 31 41 54 67 30 35 47 58 27 39
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC B1 B1 SC FW FW FW FW FW SC SC FW CL FW FW SC
POP 12HR 30 20 20 5 0 0 0 0 0
RAIN C S S
SNOW 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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