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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EST Mon Jan 12 2026
NCZ006-130900-
RAWS 310801
36.37N 79.29W Elev. 580 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 26 50 26 58 35
TEMP 30 28 27 36 46 49 40 35 32 27 28 41 54 58 51 41 39 36 36
DEWPT 18 19 19 20 21 22 20 20 20 20 20 21 22 23 24 24 25 26 27
MIN/MAX RH 71 34 79 26 71
RH 60 68 71 52 37 34 44 54 61 74 71 44 28 26 34 50 57 67 69
WIND DIR NW NW W W SW SW SW SW SW SW SW SW SW SW S SW SW SW SW
WIND SPD 5 4 2 3 4 5 2 3 2 2 2 4 6 6 4 4 5 5 4
CLOUDS FW CL CL FW CL FW FW CL FW FW FW FW FW FW FW SC SC SC B1
CLOUDS(%) 7 5 0 6 5 10 6 4 6 12 11 7 7 21 15 27 31 36 57
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 2 2 3 <1 <1 <1 <1 <1 <1 3 2 <1
T WIND DIR NW NW NW NW W SW SW SW SW SW SW SW SW SW SW
T WIND SPD 16 12 8 8 5 9 5 8 5 3 3 4 14 16 9
DISPERSION PR VP VP VP VP VP VP VP PR PR
ADI 7 6 8 17 15 27 3 4 3 2 4 5 44 42 4
MAX LVORI 3 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 29.70 29.74 29.65 29.63 29.59 29.56 29.40
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 57 34 44 21 44 24 47 27 42
TEMP 53 55 43 34 41 34 29 24 38 36 31 28 42 39 34 29 39 33
DEWPT 32 33 34 31 23 15 11 10 15 17 17 18 23 24 26 24 22 16
RH 44 43 70 89 48 45 46 54 38 45 56 66 46 54 72 81 50 49
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B1 B1 B1 B1 SC FW FW FW FW SC B1 B1 SC B1 B1 SC
POP 12HR 5 30 40 10 0 0 5 20 20
RAIN C C C S 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