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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EST Sat Dec 6 2025
NCZ006-070900-
RAWS 310801
36.37N 79.29W Elev. 580 ft
801 PM EST Sat Dec 6 2025
Date 12/06/25 Sun 12/07/25 Mon 12/08/25 Tue
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 25 51 30 40 16
TEMP 35 31 28 26 38 48 50 40 36 35 34 34 37 37 35 30 26 23 19 18
DEWPT 33 31 28 26 33 35 36 37 36 35 34 33 33 28 25 23 20 17 15 14
MIN/MAX RH 100 55 100 66 87
RH 92100100100 82 60 58 89100100100 96 85 70 66 75 78 77 84 84
WIND DIR SW S W S S S S N N NW N NE NE NE NE NE NE N N N
WIND SPD 4 2 1 1 2 2 2 0 0 1 2 5 8 9 8 3 2 2 1 1
CLOUDS SC B2 B2 B2 B2 SC SC SC B1 B2 OV OV OV B2 B2 B1 SC FW FW FW
CLOUDS(%) 32 83 83 82 71 41 40 36 51 83 94 89 89 84 76 67 39 16 11 10
VSBY 9 2 1 1 2 10 10 9 8 10 9 5 4 5 5 10 10 10
POP 12HR 0 0 10 40 5
RAIN C C
SNOW S C C C
Obvis PF PF PF
MIX HGT <1 <1 <1 <1 <1 2 1 <1 <1 <1 <1 1 2 3 3 1
T WIND DIR W W W W N S S SE N N N NE NE NE N NE
T WIND SPD 3 2 1 1 0 3 5 1 0 3 5 13 21 18 12 9
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 1 1 1 0 9 11 1 0 2 3 21 45 42 28 4
MAX LVORI 10 10 10 10 6 3 2 6 10 10 9 5 4 3 3 4
STABILITY G G F B B B B G F F F D D D D F
CEILING 25800 17200 None 6200 4500 1200 3100 None
STA PRES 29.43 29.46 29.40 29.41 29.41 29.52 29.57
Date 12/09Wed 12/10/25Thu 12/11/25Fri 12/12/25Sat 12/13/25
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 43 29 55 34 53 35 51 23 41
TEMP 40 35 31 32 52 48 41 35 51 47 43 36 50 38 31 24 40 29
DEWPT 19 25 28 30 35 36 34 32 33 35 37 36 32 28 23 17 12 11
RH 42 66 88 92 52 63 76 89 50 63 79100 50 67 72 74 31 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW SC B1 B1 B1 SC B1 B1 B1 B2 B2 B1 SC SC SC SC FW
POP 12HR 0 0 0 10 20 40 20 10 0
RAIN S C C 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