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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 PM EST Sun Nov 1 2026
VAZ046-020800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
901 PM EST Sun Nov 1 2026
Date 11/01/26 Mon 11/02/26 Tue 11/03/26 Wed
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 43 65 41 74 49
TEMP 48 45 44 44 58 64 65 53 48 46 43 43 63 71 72 61 53 52 50 52
DEWPT 41 41 41 41 45 42 41 44 43 43 43 43 53 55 54 54 53 52 50 52
MIN/MAX RH 93 42 100 52 100
RH 77 86 89 89 62 45 41 71 83 89100100 70 57 53 78100100100100
WIND DIR E E N N SE SE E E N NW W W S S S SE E SE S W
WIND SPD 1 1 0 1 1 3 3 1 0 1 1 1 2 5 4 1 1 1 2 1
CLOUDS B1 SC B2 OV OV B2 SC SC FW FW CL FW FW FW FW FW FW FW FW SC
CLOUDS(%) 53 48 81 89 90 73 44 28 24 15 4 18 14 18 6 7 12 17 23 39
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 10 0 0 0
Obvis PF PF PF
MIX HGT <1 <1 <1 <1 <1 2 2 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR NE N N W SE S SE SE E SE SW W S S S S
T WIND SPD 2 2 1 1 3 3 3 4 1 1 2 1 6 8 6 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 1 3 8 8 2 1 1 1 1 14 31 26 2
MAX LVORI 5 6 8 7 3 2 2 3 6 8 10 10 3 1 2 4
STABILITY F F F B C B B G G G G A B B B G
CEILING 10600 8100 None None None None None None
STA PRES 29.73 29.72 29.64 29.64 29.61 29.62 29.55
Date 11/04Thu 11/05/26Fri 11/06/26Sat 11/07/26Sun 11/08/26
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 75 60 75 58 73 51 69 43 67
TEMP 72 66 61 61 72 67 61 59 70 63 56 52 67 58 49 45 64 56
DEWPT 63 63 61 61 68 65 61 59 61 59 55 52 52 51 47 44 48 48
RH 73 90100100 87 93100100 73 87 96100 59 77 93 96 56 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B2 B2 OV B2 B2 B2 B2 B1 B1 B1 SC SC SC SC SC SC
POP 12HR 5 20 50 40 30 30 10 5 10
RAIN SHWRS IS SC SC SC SC SC SC SC SC
$$
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