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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Sat Jul 25 2026
VAZ018-252000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
131 PM EDT Sat Jul 25 2026
Date Sat 07/25/26 Sun 07/26/26 Mon 07/27/26
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 78 62 84 64 87
TEMP 76 78 71 66 65 63 65 76 82 82 73 68 66 65 67 79 84 86 78
DEWPT 69 68 67 64 61 61 60 63 63 63 63 63 62 63 65 69 67 67 68
MAX/MIN RH 72 95 59 96 53
RH 79 71 87 93 87 93 84 64 53 53 71 84 87 93 93 72 57 53 71
WIND DIR SE S S N NW NW NW NW NW NW NW NW NW NW NW NW W W W
WIND SPD 2 2 1 0 1 1 1 2 2 3 2 2 2 2 2 3 3 5 2
CLOUDS B1 SC SC SC SC SC SC SC B1 SC SC FW SC B1 B1 SC SC SC B1
CLOUDS(%) 51 39 50 28 36 39 46 43 59 27 45 19 46 60 57 32 50 41 58
VSBY 10 10 10 9 4 3 2 10 10 10 10 8 4 5 5 9 10 10 7
POP 12HR 30 5 20 20 5
RAIN SHWRS IS IS SC
TSTMS IS IS
Obvis PF
MIX HGT 3 3 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 3 6 5 <1
T WIND DIR W W W S W W NW N NW SW NW E NE NW NW NW W NW NW
T WIND SPD 4 4 6 1 2 2 1 5 3 6 4 3 1 2 4 10 12 10 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 19 16 3 1 1 1 1 25 23 43 2 2 1 1 4 43 88 64 3
MAX LVORI 4 4 6 9 8 8 7 3 3 3 5 7 9 9 7 3 2 3 4
STABILITY A A F G G G A A A A F G G G A A A A F
CEILING None None None None None None None None None
STA PRES 27.82 27.80 27.76 27.74 27.68 27.69 27.69 27.69 27.64
Date Tue 07/28/26Wed 07/29/26Thu 07/30/26Fri 07/31/26
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 67 86 65 83 61 84 62 86
TEMP 69 70 84 74 69 68 82 72 64 64 82 72 64 65 84 74
DEWPT 66 68 72 69 66 65 65 63 60 60 62 62 59 61 63 63
RH 90 93 67 84 90 90 56 73 87 87 51 71 84 87 49 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 B2 B1 SC SC SC FW FW FW FW FW SC SC SC
POP 12HR 70 70 40 10 5 10 5 20
RAIN SHWRS SC NM NM NM SC IS
TSTMS IS IS 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