Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EST Mon Dec 15 2025
VAZ018-160900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
431 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 22 45 33 52 33
TEMP 25 25 25 25 23 32 43 43 35 33 34 37 38 47 51 48 39 36 35 34 34
DEWPT 4 3 3 5 7 9 14 22 21 20 17 19 18 20 25 30 29 27 27 28 28
MIN/MAX RH 48 31 59 34 80
RH 40 38 38 42 50 37 30 43 56 58 49 48 44 34 36 49 67 69 72 78 78
WIND DIR W W W W W W W W W W W W W W W W W W NW SE SE
WIND SPD 2 2 3 3 3 3 3 2 2 2 3 5 6 6 6 4 2 1 1 1 2
WIND GUST 12 16 17 13 12 14 19 23 24 21 14
CLOUDS CL FW FW FW FW FW FW FW FW FW FW FW SC B1 B2 B1 B1 SC SC SC FW
CLOUDS(%) 5 16 15 11 8 13 17 9 13 11 14 23 50 69 78 66 56 49 43 27 18
VSBY 10 10 10 10 10 10 10 10 9 10 10 10 10 9 9 9 10
POP 12HR 0 0 0 10 10
MIX HGT <1 <1 <1 <1 <1 1 2 <1 <1 <1 <1 <1 <1 1 2 1 <1
T WIND DIR S SW W W NW W W SW SW W W W W W W W NW
T WIND SPD 4 4 5 11 10 9 9 6 3 4 5 5 6 13 21 10 3
DISPERSION VP VP VP VP VP VP VP PR VP VP VP VP
ADI 2 2 3 5 11 14 21 8 2 2 3 3 5 21 37 14 2
MAX LVORI 2 2 2 2 2 2 2 2 3 3 2 2 2 2 1 2 3
STABILITY G G G G B B B B G G G F C D D D F
CEILING None None None None None None 9200 3800 None
STA PRES 27.86 27.87 27.92 27.87 27.84 27.80 27.81 27.81
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 54 33 41 25 50 35 53 35 50
TEMP 53 46 48 35 38 29 26 26 49 37 37 40 52 42 39 36 49 39
DEWPT 37 41 44 28 21 14 14 14 22 25 25 32 40 36 34 31 32 31
RH 54 83 86 75 50 53 60 60 34 61 61 73 63 79 82 82 52 73
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 OV B2 SC FW FW SC FW FW SC SC B1 B1 B1 B1 B1 B1
POP 12HR 30 90 5 5 5 20 20 30 30
RAIN C S
RAIN SHWRS SC O NM IS IS IS IS SC
$$
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