Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EST Mon Dec 15 2025
NCZ006-160900-
RAWS 310801
36.37N 79.29W Elev. 580 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 49 29 55 31
TEMP 27 25 25 24 23 35 46 47 35 31 31 31 31 43 53 55 47 40 37 34 32
DEWPT 7 7 7 8 9 12 14 20 21 21 22 22 22 26 28 30 31 31 31 32 31
MIN/MAX RH 55 27 71 37 95
RH 42 46 46 50 54 38 27 34 56 66 69 69 69 51 38 38 53 70 79 92 96
WIND DIR S SW SW SW SW W SW SW S SW SW SW SW SW SW SW SW SW N E SE
WIND SPD 2 3 3 2 2 2 2 2 2 2 2 4 4 5 5 4 1 1 0 1 1
CLOUDS CL CL SC SC FW CL CL CL CL FW FW FW SC B1 B2 B2 B2 B1 B1 SC SC
CLOUDS(%) 5 5 29 34 6 5 5 4 5 6 8 20 43 60 74 73 72 62 60 43 43
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 5
MIX HGT <1 <1 <1 <1 <1 <1 2 <1 <1 <1 <1 <1 <1 1 2 <1 <1
T WIND DIR S SW SW SW W W SW S S S SW SW SW SW SW SW S
T WIND SPD 6 9 8 5 5 3 3 5 5 6 6 5 6 12 11 5 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 3 4 4 3 6 4 10 6 3 3 3 3 5 17 24 4 2
MAX LVORI 2 2 2 2 2 2 2 2 2 3 3 3 3 2 2 2 2
STABILITY G G G G B B B B G G G F C C C C F
CEILING None None None None None None 26200 19700 7800
STA PRES 29.63 29.60 29.64 29.57 29.56 29.52 29.50 29.48
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 58 42 53 25 53 37 60 35 55
TEMP 53 53 56 44 50 38 29 27 50 44 39 38 58 52 42 36 52 48
DEWPT 41 50 54 42 26 21 19 19 23 28 29 33 40 42 38 35 34 35
RH 64 89 93 93 39 50 66 71 34 53 67 82 51 69 86 96 50 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 OV SC FW FW FW FW FW FW SC SC SC SC SC B1 SC
POP 12HR 40 80 10 0 0 5 10 20 20
RAIN S
RAIN SHWRS SC NM O 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