Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
101 AM EST Sun Jan 18 2026
NCZ003-190900-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
101 AM EST Sun Jan 18 2026
Date 01/17/26 Sun 01/18/26 Mon 01/19/26 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 28 35 19 41 14
TEMP 35 30 31 33 34 28 25 22 20 22 30 38 40 32 24 21 18 15
DEWPT 28 24 19 15 13 13 12 12 11 11 13 12 10 9 6 3 1 -1
MIN/MAX RH 81 42 67 29 50
RH 75 78 61 47 41 53 57 65 67 62 49 34 28 37 45 45 46 48
WIND DIR NW NW NW NW NW W W SW SW SW W W W W NW NW NW NW
WIND SPD 2 4 4 4 4 1 1 1 2 2 5 8 6 3 3 2 2 3
WIND GUST 12 17 19 19 14 13 13 13
CLOUDS OV OV OV OV FW FW FW FW FW FW FW FW CL FW SC SC FW FW
CLOUDS(%) 100100100 94 13 6 6 6 8 8 6 7 5 15 30 42 24 9
VSBY 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 60 20 0 0 0
RAIN
SNOW C S
MIX HGT <1 1 2 3 4 1 <1 <1 <1 1 4 4 4 1
T WIND DIR W NW NW NW NW NW W W SW W W W W NW
T WIND SPD 6 9 12 12 17 12 5 5 4 6 21 20 19 14
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 3 16 27 31 75 6 3 3 2 9 78 81 75 7
MAX LVORI 4 3 2 1 1 2 3 3 3 3 1 1 1 2
STABILITY F C D D B G G G G B C C C G
CEILING 3700 2600 None None None None None None
STA PRES 28.10 28.08 28.03 28.07 28.05 28.09 28.13
Date 01/20Wed 01/21/26Thu 01/22/26Fri 01/23/26Sat 01/24/26
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 34 15 42 25 47 22 46 30 50
TEMP 32 27 19 18 39 36 31 29 44 34 26 22 43 38 33 33 47 45
DEWPT -6 3 4 6 9 18 20 24 24 18 15 13 19 23 24 26 36 35
RH 18 35 51 59 28 47 63 81 45 51 62 68 38 54 69 75 65 68
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL FW FW SC B1 B1 SC FW FW FW FW SC B1 B2 B2 B2
POP 12HR 0 0 0 10 10 5 5 20 40
RAIN S 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