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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EST Sat Jan 10 2026
NCZ005-110900-
RAWS 310540
36.38N 79.70W Elev. 858 ft
231 PM EST Sat Jan 10 2026
Date 01/10/26 Sun 01/11/26 Mon 01/12/26 Tue
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 42 49 25 50 28
TEMP 68 66 63 59 52 45 47 47 41 39 35 33 32 28 36 44 48 41 38 36 34 32
DEWPT 62 62 60 54 46 37 29 24 17 16 16 17 17 18 18 18 19 21 22 22 21 21
MIN/MAX RH 93 36 71 31 72
RH 81 87 90 83 80 73 49 40 37 39 45 51 53 66 47 35 31 44 52 56 58 63
WIND DIR SW SW SW W NW NW W W NW NW NW NW NW W W W SW SW SW SW SW SW
WIND SPD 13 11 10 5 8 10 14 19 18 11 9 8 5 3 3 4 5 3 2 2 2 2
WIND GUST 27 21
CLOUDS B2 OV B2 B2 B2 FW CL SC FW FW FW FW FW CL CL CL CL CL FW FW FW FW
CLOUDS(%) 86 95 81 73 76 25 5 47 16 6 6 7 6 5 5 4 4 4 8 11 10 9
VSBY 9 9 9 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 80 0 0 0 0
RAIN L L C
TSTMS IS IS
MIX HGT 2 <1 <1 <1 <1 1 4 7 6 <1 1 1 <1 <1 1 2 2 <1
T WIND DIR S S SW W NW NW W W NW NW NW NW NW NW NW SW SW SW
T WIND SPD 20 17 14 14 17 17 16 31 35 25 18 19 12 8 8 4 11 5
DISPERSION FR FR PR PR FR PR PR PR VP VP VP VP
ADI 41 15 13 10 15 21 42109114 17 12 13 6 8 16 12 32 3
MAX LVORI 3 4 5 4 4 3 1 1 1 2 2 2 3 3 2 2 1 2
STABILITY D D D E D C D D D E E E F B B C C G
CEILING 1000 4800 None None None None None None None
STA PRES 29.18 29.23 29.31 29.42 29.54 29.59 29.62 29.52
Date 01/13Wed 01/14/26Thu 01/15/26Fri 01/16/26Sat 01/17/26
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 54 36 53 35 41 22 45 27 48
TEMP 48 46 42 39 49 43 38 35 39 33 29 25 39 37 33 31 43 45
DEWPT 24 27 28 30 31 33 30 24 16 13 12 14 15 19 20 21 23 23
RH 39 47 57 70 50 67 73 64 39 43 48 62 37 48 58 66 45 41
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW B1 B2 B2 B1 B1 B1 SC FW SC FW FW FW SC SC SC
POP 12HR 0 0 20 20 20 10 5 5 10
RAIN SHWRS IS IS IS
$$
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