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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EST Mon Jan 12 2026
NCZ005-130900-
RAWS 310540
36.38N 79.70W Elev. 858 ft
1231 AM EST Mon Jan 12 2026
Date 01/11/26 Mon 01/12/26 Tue 01/13/26 Wed
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 27 48 26 57 35
TEMP 29 27 27 35 45 47 39 34 31 26 27 40 53 57 50 42 40 36 36
DEWPT 17 18 18 19 20 21 19 20 20 20 19 19 20 21 23 24 25 26 27
MIN/MAX RH 68 35 77 25 70
RH 60 68 68 52 36 35 44 56 63 78 71 42 27 24 34 48 55 67 69
WIND DIR NW NW W W SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
WIND SPD 6 4 3 3 5 6 3 3 3 2 2 4 6 6 4 5 5 5 4
WIND GUST 16
CLOUDS FW CL CL FW CL FW FW CL FW FW FW FW FW FW FW SC SC SC B1
CLOUDS(%) 9 5 0 6 5 8 6 4 8 18 10 7 7 18 15 33 40 43 60
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 0 0
MIX HGT <1 <1 <1 1 2 2 <1 <1 <1 <1 <1 <1 2 2 <1
T WIND DIR NW NW NW NW SW SW SW SW SW SW SW SW SW SW SW
T WIND SPD 19 13 6 5 4 10 4 5 4 3 2 5 12 17 9
DISPERSION PR VP VP VP VP VP VP PR PR PR
ADI 9 6 7 10 12 28 2 3 2 2 2 4 33 42 4
MAX LVORI 2 3 3 2 2 2 2 3 3 4 3 2 1 1 2
STABILITY F F B B C C G G G G B C C C F
CEILING None None None None None None None None
STA PRES 29.60 29.63 29.55 29.53 29.49 29.45 29.30
Date 01/14Thu 01/15/26Fri 01/16/26Sat 01/17/26Sun 01/18/26
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 55 34 41 21 42 24 45 27 41
TEMP 51 53 43 34 40 33 28 24 37 34 30 27 40 38 34 29 38 32
DEWPT 31 33 34 29 20 13 10 10 12 17 17 17 22 24 25 23 20 15
RH 46 46 70 82 44 43 46 54 35 49 58 65 48 57 69 78 48 49
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 B1 B1 B1 SC SC FW FW FW SC B1 B1 B1 B2 B1 SC
POP 12HR 5 40 30 10 0 0 10 20 20
RAIN C C C S
RAIN SHWRS IS
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