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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Tue Oct 27 2026
NCZ003-272000-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
431 AM EDT Tue Oct 27 2026
Date Tue 10/27/26 Wed 10/28/26 Thu 10/29/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 72 47 69 50 73
TEMP 45 44 63 69 70 57 52 50 48 47 59 66 66 57 54 53 52 51 62 69 72 62
DEWPT 43 42 44 43 44 47 47 48 48 47 50 51 51 52 52 52 51 51 57 56 54 55
MAX/MIN RH 36 100 55 100 54
RH 93 93 50 39 39 69 83 93100100 72 58 58 83 93 96 96100 84 63 53 78
WIND DIR N NE NE E E E E E NE NE NE E E E NE N N N NE SW N N
WIND SPD 3 3 3 4 3 3 4 4 4 4 4 4 3 2 3 3 3 2 1 2 0 0
CLOUDS SC SC SC CL CL FW CL FW B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 SC FW CL CL
CLOUDS(%) 28 27 27 2 2 6 5 13 52 53 59 61 71 78 62 68 67 53 31 14 1 5
VSBY 10 10 10 10 10 10 10 10 10 7 7 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 1 4 3 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 4 3 <1
T WIND DIR N N E E NE NE NE NE NE NE NE E E E E N N N W SW SW SW
T WIND SPD 3 3 9 8 5 3 3 3 3 4 8 6 5 6 5 3 4 3 1 5 4 2
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 2 4 17 35 23 2 2 2 2 5 20 27 21 3 3 2 2 3 3 25 18 1
MAX LVORI 7 6 2 1 2 3 5 7 9 9 3 2 2 5 6 8 8 9 5 2 2 5
STABILITY G B B B B G F F E B B B B F F F F C A B A G
CEILING None None None None 24600 20000 6200 0 None None
STA PRES 29.23 29.20 29.24 29.27 29.31 29.27 29.28 29.25 29.25 29.17
Date Fri 10/30/26Sat 10/31/26Sun 11/01/26Mon 11/02/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 47 77 53 71 53 67 55 72
TEMP 52 49 75 64 55 54 68 63 56 55 63 61 57 56 69 64
DEWPT 51 47 51 53 50 50 46 47 53 54 59 59 57 56 62 60
RH 96 93 43 67 83 86 45 56 90 96 87 93100100 78 87
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW FW SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1
POP 12HR 0 0 0 5 30 60 50 20
RAIN SHWRS SC SC NM SC SC 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