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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
101 PM EDT Wed Jul 29 2026
VAZ018-292000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
101 PM EDT Wed Jul 29 2026
Date Wed 07/29/26 Thu 07/30/26 Fri 07/31/26
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 76 58 82 58 86
TEMP 75 74 68 64 62 60 62 74 80 80 71 65 61 59 64 78 84 85 75
DEWPT 59 56 57 58 57 56 56 59 58 59 57 55 55 55 57 60 58 57 59
MAX/MIN RH 53 88 47 85 38
RH 58 53 68 81 84 87 81 59 47 49 61 70 81 87 78 54 41 39 58
WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW W SW SW E
WIND SPD 8 9 8 4 4 4 4 5 5 6 5 3 2 2 2 1 2 2 1
WIND GUST 23 24 24 18 16 14 17 16 18 20
CLOUDS FW FW CL CL CL CL FW CL CL CL CL CL CL CL FW FW SC FW SC
CLOUDS(%) 21 9 4 3 2 3 7 3 5 1 4 2 3 2 10 16 29 15 28
VSBY 10 10 10 10 10 7 1 10 10 10 10 7 7 7 7 7 7 7 7
POP 12HR 0 0 0 0 0
MIX HGT 4 5 2 <1 <1 <1 1 3 5 5 1 <1 <1 <1 <1 4 6 7 <1
T WIND DIR NW NW NW NW NW NW NW N N N N NW NW W NW SW W NW SE
T WIND SPD 17 18 21 10 9 6 12 18 13 13 16 5 4 3 2 2 3 2 4
DISPERSION PR VP VP VP PR VP VP VP VP
ADI 87 99 15 5 4 3 17 67 87 84 7 3 2 2 2 13 25 20 2
MAX LVORI 1 1 3 4 5 6 3 1 1 1 3 3 4 5 4 2 2 2 3
STABILITY B B E F F F A A A B F G G G A A A A G
CEILING None None None None None None None None None
STA PRES 27.64 27.69 27.71 27.74 27.75 27.81 27.81 27.82 27.77
Date Sat 08/01/26Sun 08/02/26Mon 08/03/26Tue 08/04/26
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 64 83 67 78 67 80 66 82
TEMP 66 68 82 73 70 68 77 71 69 69 79 72 69 69 81 73
DEWPT 58 60 64 65 66 67 72 70 68 68 72 70 67 68 71 70
RH 75 76 55 76 87 97 85 97 97 97 79 93 93 97 72 90
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 B2 B2 B2 OV B2 B2 B2 B2 B2 B1 B1 B2 B1
POP 12HR 0 40 70 60 50 60 30 50
RAIN SHWRS SC SC NM NM O NM SC NM NM NM SC SC SC SC
TSTMS SC IS 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