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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 AM EDT Mon Sep 28 2026
VAZ018-282000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
731 AM EDT Mon Sep 28 2026
Date Mon 09/28/26 Tue 09/29/26 Wed 09/30/26
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 54 78 54 84
TEMP 54 64 71 71 63 57 56 55 54 69 76 77 67 59 58 56 55 73 82 83 70
DEWPT 47 55 57 55 56 55 54 52 52 58 58 55 57 55 54 52 52 58 54 50 54
MAX/MIN RH 57 93 47 91 32
RH 77 73 61 57 78 93 93 90 93 68 54 47 70 87 86 86 90 59 38 32 57
WIND DIR NW NW NW NW NW NW NW NW NW NW N W N N N N N S SW S SE
WIND SPD 6 5 5 5 4 3 2 2 2 1 1 1 0 0 0 0 0 2 3 2 1
WIND GUST 20 18 16 16 16
CLOUDS SC B1 SC FW FW SC B1 SC SC SC B1 SC FW FW FW FW FW CL FW FW FW
CLOUDS(%) 49 57 44 24 18 47 52 35 39 34 58 37 24 12 9 6 9 3 15 13 15
VSBY 9 10 10 10 10 9 3 1 2 9 10 9 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 0 0
MIX HGT <1 2 3 3 <1 <1 <1 <1 <1 4 4 4 <1 <1 <1 <1 <1 3 5 6 <1
T WIND DIR NW NW NW NW NW N N N N NW SW SE NW W SW NW N SW SW S SE
T WIND SPD 9 11 10 12 13 10 4 3 3 2 1 1 1 1 1 1 0 9 4 6 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 10 23 44 52 6 5 2 2 4 10 4 6 1 1 1 1 0 35 28 46 2
MAX LVORI 4 3 1 1 4 6 6 7 6 3 2 2 4 6 6 7 6 1 2 1 3
STABILITY B D B B F F F G B A C A G G G G A B B B G
CEILING None None None None None None None None None None
STA PRES 27.72 27.73 27.79 27.80 27.86 27.84 27.88 27.88 27.93 27.89
Date Thu 10/01/26Fri 10/02/26Sat 10/03/26Sun 10/04/26
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 56 86 60 85 60 73 57 70
TEMP 60 58 85 72 63 61 83 72 64 60 72 63 60 58 70 61
DEWPT 52 49 53 55 54 53 60 60 58 54 58 56 54 53 60 58
RH 75 72 33 55 72 75 46 66 81 81 61 78 81 83 71 90
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW SC B1 B1 B1 B1 B1 B1 B2 B2 B2
POP 12HR 0 0 0 30 20 40 40 50
RAIN SHWRS SC IS IS 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