Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EST Mon Jan 19 2026
VAZ018-200900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
231 AM EST Mon Jan 19 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 20 35 14 27 15
TEMP 21 20 27 31 31 25 20 18 15 14 19 25 27 22 17 17 16 16
DEWPT 9 9 9 8 6 3 1 -2 -4 -5 -7 -7 -6 -5 -3 -1 1 1
MIN/MAX RH 63 34 43 22 52
RH 59 62 46 37 34 38 43 40 42 42 30 23 23 29 40 44 51 51
WIND DIR W W W W W W W W W W W W W W W SW SW S
WIND SPD 10 11 14 16 17 14 10 9 8 8 9 9 6 2 2 2 2 2
WIND GUST 24 28 35 36 36 35 33 29 28 29 29 26 23 13
CLOUDS FW FW FW FW FW FW FW FW FW CL CL FW CL CL CL CL FW FW
CLOUDS(%) 11 9 10 8 8 7 9 9 10 5 5 7 5 4 4 5 7 7
VSBY 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 3 3 3 2 2 2 2 2 3 4 4 1
T WIND DIR W W W W W W W W W W W W W W
T WIND SPD 11 25 28 28 27 28 26 20 17 19 29 27 23 14
DISPERSION FR GD FR PR PR VP VP VP VP
ADI 5 33 89 72 68 19 18 14 12 43 91101 82 7
MAX LVORI 3 1 1 1 1 2 2 2 2 1 1 1 1 2
STABILITY F C C D D E E E E C C C C G
CEILING None None None None None None None
STA PRES 27.66 27.74 27.84 27.89 27.97 28.03
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 30 42 21 43 26 40 21 31
TEMP 39 35 32 34 40 31 24 21 40 34 30 27 37 33 28 22 29 21
DEWPT 9 14 20 24 23 14 10 8 10 13 16 18 22 21 18 13 11 7
RH 28 41 61 66 50 49 54 56 28 41 55 68 54 61 66 68 46 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B1 B2 B1 FW FW FW SC SC SC B1 B1 B2 B1 B1 B1 B1
POP 12HR 0 30 20 5 5 20 40 50 50
RAIN S C C S
SNOW C S C C 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