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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 AM EST Fri Dec 5 2025
VAZ046-052100-
RAWS 441101
37.39N 78.80W Elev. 804 ft
701 AM EST Fri Dec 5 2025
Date Fri 12/05/25 Sat 12/06/25 Sun 12/07/25
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
MAX/MIN TEMP 31 23 46 25 45
TEMP 28 30 31 29 27 27 26 27 36 44 44 37 34 30 27 26 36 43 43 37
DEWPT 26 27 27 28 26 25 26 26 32 35 36 34 31 28 26 25 31 33 34 33
MAX/MIN RH 84 100 70 95 67
RH 92 88 85 96 96 92100 96 85 70 73 89 89 92 96 96 82 67 70 85
WIND DIR NE N N N W W SW SW SW SW SW SW W NW N N E S S SW
WIND SPD 5 5 2 1 1 2 2 3 4 5 5 4 3 2 2 2 3 4 3 2
CLOUDS OV OV OV B2 B1 B2 B2 B2 B1 B2 B1 B1 FW FW FW SC B1 B2 B1 SC
CLOUDS(%) 94 94 95 79 65 80 75 76 69 75 67 52 13 11 25 43 65 73 61 50
VSBY 4 6 7 7 3 5 5 6 10 10 10 10 10 10 10 10 10 10 6 8
POP 12HR 80 0 0 0 10
SNOW C S
MIX HGT 1 1 <1 <1 <1 <1 <1 <1 <1 2 <1 <1 <1 <1 <1 <1 1 2 1 <1
T WIND DIR E NE N N NE W W SW W SW W SW W W W NW E S S S
T WIND SPD 10 5 8 5 4 2 5 2 6 11 9 3 3 4 2 1 9 8 12 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 15 8 9 3 2 1 3 2 7 25 9 2 2 2 1 1 14 16 22 1
MAX LVORI 5 5 4 8 8 8 9 9 5 3 3 6 7 6 7 7 4 3 3 5
STABILITY D D C F F F F B C C C E G G G B C D C F
CEILING 700 700 600 300 22300 19800 None None 10600 5400
STA PRES 29.43 29.30 29.29 29.25 29.25 29.20 29.31 29.34 29.35 29.26
Date Mon 12/08/25Tue 12/09/25Wed 12/10/25Thu 12/11/25
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MIN/MAX TEMP 28 38 17 42 28 49 38 47
TEMP 33 29 37 28 21 19 39 33 30 30 46 44 42 39 46 37
DEWPT 30 26 21 17 14 13 19 23 25 26 33 35 35 34 29 25
RH 89 88 52 63 74 77 44 66 81 85 60 70 76 82 51 61
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC FW SC FW FW SC SC B1 B1 B2 B2 B1 SC
POP 12HR 10 10 5 0 0 5 20 30
RAIN S S 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