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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Sun Jan 18 2026
NCZ006-190900-
RAWS 310801
36.37N 79.29W Elev. 580 ft
701 PM EST Sun Jan 18 2026
Date 01/18/26 Mon 01/19/26 Tue 01/20/26 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 23 45 18 38 15
TEMP 27 25 24 23 35 44 45 33 28 25 21 19 28 36 38 29 22 19 17 16
DEWPT 23 20 18 18 18 18 15 14 11 8 7 5 4 0 1 5 5 4 4 5
MIN/MAX RH 96 29 56 19 61
RH 85 81 77 81 49 35 29 45 48 48 54 54 35 21 20 35 47 51 56 61
WIND DIR W SW SW SW SW W W W NW NW NW NW NW W W NW N SE S S
WIND SPD 2 1 2 3 5 10 9 4 3 2 2 2 4 5 3 1 1 1 1 1
CLOUDS CL FW FW FW CL CL FW CL FW FW FW FW CL CL CL CL CL CL CL FW
CLOUDS(%) 3 8 9 7 4 5 6 5 11 25 18 13 4 5 4 2 3 5 5 8
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 3 4 5 <1
T WIND DIR SW SW SW SW W W W W NW NW NW NW W NW NW NW
T WIND SPD 3 4 4 5 18 16 18 5 13 10 8 4 14 17 14 2
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 2 6 53 59 69 3 6 5 4 5 46 66 84 1
MAX LVORI 3 4 4 4 1 1 1 2 2 2 2 2 1 1 1 2
STABILITY G G G B C C C G G G G B C C B G
CEILING None None None None None None None None None
STA PRES 29.36 29.36 29.41 29.44 29.57 29.63 29.72 29.77
Date 01/21Thu 01/22/26Fri 01/23/26Sat 01/24/26Sun 01/25/26
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 44 28 52 20 47 27 46 25 38
TEMP 41 36 31 32 49 39 27 21 44 38 32 28 43 39 33 26 35 29
DEWPT 9 17 22 25 30 24 16 14 16 20 20 22 28 27 25 20 19 15
RH 26 45 69 75 48 54 63 74 32 48 61 78 55 62 72 78 52 55
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B1 B2 B1 SC FW FW SC SC SC B1 B1 B1 B1 B1 B1 B1
POP 12HR 0 20 20 5 5 10 40 40 50
RAIN S C C C C
SNOW S C C C C
$$
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