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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 AM EST Sun Dec 28 2025
VAZ018-282100-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
501 AM EST Sun Dec 28 2025
Date Sun 12/28/25 Mon 12/29/25 Tue 12/30/25
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 53 42 56 21 32
TEMP 36 40 48 51 48 47 46 45 43 50 42 35 28 26 24 23 22 26 31 29 25
DEWPT 36 40 42 43 44 46 46 45 43 37 23 17 12 11 10 9 8 9 8 7 5
MAX/MIN RH 73 100 45 57 38
RH 100100 80 74 86 96100100100 61 46 47 50 52 54 54 54 48 37 39 42
WIND DIR S S S S S SW SW SW W W W W W W W W NW NW NW W W
WIND SPD 2 2 4 5 4 6 8 10 13 16 16 14 16 18 20 21 20 17 12 11 10
WIND GUST 40 44 46 46 49 52 55 56 56 48 39 35 35
CLOUDS OV OV OV B2 B2 B2 B2 B2 B1 B1 FW SC SC SC B1 SC SC SC FW FW FW
CLOUDS(%) 88100 89 83 83 80 77 81 63 60 18 40 40 48 55 50 38 29 11 7 15
VSBY 5 9 10 10 10 8 8 7 7 7 7 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 20 40 10 5
DRIZZLE ?
RAIN S S
RAIN SHWRS IS SC SC
Obvis PF
MIX HGT <1 <1 1 1 <1 <1 <1 1 2 4 4 4 3 3 3 3 2 3 3 3 2
T WIND DIR S S S S S S SW SW SW W W W W W W NW NW NW NW W W
T WIND SPD 5 6 6 8 6 6 8 10 10 35 44 42 41 42 42 43 40 36 31 25 26
DISPERSION VP PR PR FR GD GD GD GD FR
ADI 4 8 11 11 5 5 7 9 19 94130119 56 57 57 59 86 86 77 64 18
MAX LVORI 9 8 4 4 5 9 8 8 5 1 1 1 1 1 1 1 1 1 1 1 2
STABILITY C D D D E E D D D D D D D D D D D D D D E
CEILING 0 1400 600 900 None None None None None None
STA PRES 27.83 27.70 27.60 27.44 27.44 27.51 27.61 27.62 27.70 27.70
Date Wed 12/31/25Thu 01/01/26Fri 01/02/26Sat 01/03/26
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 24 42 29 43 27 43 27 48
TEMP 24 25 40 36 32 30 42 34 31 27 41 31 29 28 46 41
DEWPT 6 6 13 15 19 20 22 20 19 17 16 15 14 17 24 27
RH 45 44 33 42 58 66 44 56 61 65 36 51 53 63 42 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW SC SC SC B1 B1 B1 B1 SC FW SC SC B1 B1 SC
POP 12HR 0 0 20 20 10 0 20 30
FRZG RAIN S
RAIN C C
SNOW S 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