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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
831 PM EST Thu Jan 15 2026
VAZ024-160900-
RAWS 441631
37.63N 79.51W Elev. 865 ft
831 PM EST Thu Jan 15 2026
Date 01/15/26 Fri 01/16/26 Sat 01/17/26 Sun
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 18 40 29 49 27
TEMP 22 20 19 18 26 38 39 36 33 33 31 32 39 47 48 41 34 31 29 27
DEWPT 7 6 8 7 8 7 9 11 12 16 19 22 29 30 29 26 24 23 21 19
MIN/MAX RH 64 28 67 47 73
RH 52 54 61 61 46 27 28 35 41 49 61 66 67 51 47 55 66 72 72 71
WIND DIR W W W SW SW S S S S S S S SW SW W W W NW NW NW
WIND SPD 9 5 4 3 5 8 8 3 2 2 2 2 4 6 6 2 2 2 3 3
WIND GUST 19 16 13 14 19 18 12 12 12
CLOUDS CL CL FW SC B1 B1 SC SC B1 B2 B2 B2 B1 B1 SC SC SC B1 B1 B2
CLOUDS(%) 3 4 9 28 65 68 34 27 68 70 72 81 67 53 50 33 48 59 69 74
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 8 8 8 10 8 10 10
POP 12HR 0 5 20 30 10
RAIN C C
SNOW S S S
MIX HGT 2 1 <1 <1 2 3 2 1 1 <1 <1 <1 2 5 7 <1
T WIND DIR NW NW W W SW S S S SW S S S SW W W W
T WIND SPD 29 20 16 8 9 13 17 13 12 11 4 4 6 24 20 4
DISPERSION PR PR VP VP VP VP VP VP VP VP VP
ADI 20 9 7 10 18 31 48 6 6 5 2 4 13 75 96 2
MAX LVORI 2 2 3 2 2 1 1 2 2 2 3 3 3 1 1 3
STABILITY E F F B D D C G F F F C D D C G
CEILING None None None 5300 3300 3600 None None
STA PRES 28.37 28.44 28.41 28.44 28.46 28.53 28.58
Date 01/18Mon 01/19/26Tue 01/20/26Wed 01/21/26Thu 01/22/26
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 18 39 11 29 13 43 26 47
TEMP 34 27 21 19 38 29 18 12 27 23 16 16 40 36 31 27 43 37
DEWPT 12 10 9 8 10 6 -2 -5 -6 -2 -1 2 8 11 16 18 18 19
RH 39 48 59 61 31 37 40 45 23 33 46 53 26 35 53 68 36 48
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 SC FW FW FW FW FW FW FW CL CL FW FW SC B1 B1 SC SC
POP 12HR 20 0 0 0 0 0 0 10 20
RAIN S
SNOW S S
$$
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