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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 AM EST Mon Jan 5 2026
NCZ006-052100-
RAWS 310801
36.37N 79.29W Elev. 580 ft
401 AM EST Mon Jan 5 2026
Date Mon 01/05/26 Tue 01/06/26 Wed 01/07/26
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 53 42 64 46 68
TEMP 28 39 50 53 46 44 43 43 42 51 61 63 57 54 53 51 48 58 66 66 53
DEWPT 24 32 37 40 41 42 42 42 41 46 47 47 48 49 49 48 46 47 43 42 41
MAX/MIN RH 59 99 55 94 39
RH 85 76 61 61 83 93 96 96 96 83 60 56 72 83 86 89 93 67 43 42 64
WIND DIR N S SW SW SW SW SW SW SW SW SW SW SW SW W W W W W W NW
WIND SPD 0 2 5 5 2 2 3 2 3 5 9 10 6 6 5 5 4 4 5 3 1
CLOUDS B2 B2 OV B1 SC SC B1 SC B2 B2 B1 B1 SC SC SC SC SC FW FW SC FW
CLOUDS(%) 80 72 88 66 49 31 59 41 77 76 56 55 46 28 46 36 29 18 19 29 20
VSBY 10 10 10 10 10 10 7 7 7 7 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 0
MIX HGT <1 1 2 2 <1 <1 <1 <1 <1 1 3 3 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR SE S S S SW SW SW SW SW SW SW SW SW SW W W W W NW NW NW
T WIND SPD 1 8 9 10 5 5 6 10 4 13 20 21 23 17 17 9 6 24 20 14 8
DISPERSION VP VP VP VP PR PR PR PR VP
ADI 1 11 16 21 3 3 3 5 4 19 51 53 15 8 12 4 5 74 75 65 4
MAX LVORI 7 4 2 2 5 6 9 9 8 3 1 1 3 4 5 6 6 1 1 1 3
STABILITY C C D D F G F F C D D D E F E F C C C B G
CEILING 2800 1600 None None 500 None None None None None
STA PRES 29.53 29.47 29.45 29.38 29.33 29.20 29.20 29.23 29.33 29.38
Date Thu 01/08/26Fri 01/09/26Sat 01/10/26Sun 01/11/26
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 39 67 51 72 57 66 37 50
TEMP 44 40 64 55 53 52 69 64 60 59 64 55 47 41 49 41
DEWPT 39 37 42 44 48 51 55 55 57 57 56 37 31 30 23 22
RH 82 89 45 66 83 96 61 73 90 93 75 51 53 65 36 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC SC B1 B2 B2 B2 B2 OV OV B1 SC SC SC SC
POP 12HR 0 0 5 20 40 50 30 10
RAIN S C C C C
RAIN SHWRS SC
$$
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