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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Tue Oct 27 2026
NCZ006-272000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
801 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 74 44 71 49 75
TEMP 62 72 72 58 52 50 47 48 58 68 69 59 56 54 52 51 63 72 74 63
DEWPT 47 46 46 49 49 49 47 48 52 53 54 54 54 54 52 51 60 61 59 59
MAX/MIN RH 38 100 55 100 59
RH 58 39 39 72 89 96100100 80 59 59 83 93100100100 90 68 59 87
WIND DIR NE NE NE NE N N N NE NE NE NE E N N N N N N N N
WIND SPD 2 4 3 1 0 0 0 2 3 3 3 1 0 0 0 0 1 1 0 0
CLOUDS FW CL CL FW CL SC SC OV B2 B1 B2 B1 B2 B2 B2 B2 SC SC FW CL
CLOUDS(%) 7 4 3 7 5 30 46 95 74 60 73 67 77 75 70 75 47 27 11 2
VSBY 10 10 10 10 10 9 7 7 7 10
POP 12HR 0 0 0 0 0
MIX HGT 1 4 3 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 4 3 <1
T WIND DIR NE E NE NE NE E NE NE NE NE NE NE NE N N N NE W W SW
T WIND SPD 9 9 6 4 4 5 3 8 6 8 6 5 4 3 4 4 2 3 6 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 16 40 29 2 2 3 2 8 15 24 21 3 2 2 2 4 5 16 31 2
MAX LVORI 2 1 2 3 6 9 10 8 4 2 2 5 6 10 9 9 6 3 1 5
STABILITY B B B G G G F B C C C F F F F C A A A G
CEILING None None None 24200 9800 900 900 900 None None
STA PRES 29.65 29.62 29.67 29.70 29.75 29.71 29.71 29.68 29.67 29.60
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 46 79 50 74 52 71 55 74
TEMP 52 47 78 65 54 51 71 64 55 54 69 64 59 57 72 65
DEWPT 52 47 55 56 53 51 48 49 55 54 63 62 59 57 65 62
RH 100100 45 73 96100 44 58100100 81 93100100 79 90
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW FW SC B1 B2 B1 B2 B2 B2 B2 B2 B2 B2 B1
POP 12HR 0 0 0 5 20 50 50 30
RAIN SHWRS IS SC SC SC 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