Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Mon Dec 15 2025
VAZ020-160900-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
701 PM EST Mon Dec 15 2025
Date 12/15/25 Tue 12/16/25 Wed 12/17/25 Thu
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 19 42 31 50 31
TEMP 24 23 23 21 28 40 39 33 32 33 35 36 45 50 47 39 35 34 33 32
DEWPT 3 3 3 5 7 12 17 18 19 19 20 20 23 27 30 29 28 26 26 27
MIN/MAX RH 57 32 59 40 81
RH 39 41 41 49 40 31 40 53 58 56 54 52 41 41 51 67 75 72 75 81
WIND DIR SW W W W W SW SW SW W W W W W W W W NW NW NE E
WIND SPD 3 4 4 4 2 2 2 2 2 3 3 4 4 3 2 2 2 2 1 1
WIND GUST 14 13
CLOUDS SC FW CL CL CL CL FW FW FW FW SC B1 B1 B2 B1 B1 SC SC SC SC
CLOUDS(%) 29 18 3 3 4 4 7 13 14 21 31 59 68 75 58 52 42 39 37 30
VSBY 10 10 10 10 9 8 8 7 8 10 10 10 3 3 3 10
POP 12HR 0 0 0 5 5
MIX HGT <1 <1 <1 <1 <1 1 <1 <1 <1 <1 <1 <1 1 2 <1 <1
T WIND DIR SW W W W W SW SW SW W W W W W W W SW
T WIND SPD 4 4 6 6 4 5 9 5 4 5 5 5 13 21 10 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 3 7 6 11 10 3 2 3 3 6 21 47 10 2
MAX LVORI 2 2 2 2 2 2 2 2 3 3 2 2 2 1 2 3
STABILITY G G G B B B B G G G G D D C C F
CEILING None None None None None None 2400 3100 None
STA PRES 27.91 27.91 27.97 27.91 27.88 27.84 27.84 27.85
Date 12/18Fri 12/19/25Sat 12/20/25Sun 12/21/25Mon 12/22/25
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 50 32 39 24 47 33 51 33 46
TEMP 50 44 47 34 37 29 25 25 46 36 35 37 50 41 38 33 46 38
DEWPT 33 38 42 28 17 12 13 14 17 22 24 29 36 32 31 29 28 27
RH 52 79 83 78 44 48 60 62 31 56 64 72 58 70 76 85 49 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 OV B2 SC FW FW SC FW SC SC B1 B1 B1 B1 B1 B1 B1
POP 12HR 30 90 5 5 5 10 20 20 20
RAIN S S
RAIN SHWRS SC O NM IS IS IS IS
SNOWSHWRS IS
$$
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