Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri Jul 24 2026
VAZ012-250800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EDT Fri Jul 24 2026
Date 07/24/26 Sat 07/25/26 Sun 07/26/26 Mon
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 60 79 56 82 58
TEMP 63 62 61 63 69 74 78 72 62 60 58 60 72 77 81 74 64 61 59 63
DEWPT 63 62 61 63 67 64 63 63 61 59 58 60 63 63 64 64 62 60 59 63
MIN/MAX RH 100 61 100 57 100
RH 100100100100 93 71 60 73 97 96100100 73 62 56 71 93 97100100
WIND DIR SE SE N N NW NW NW NW W W W NW NW NW NW NW W W W W
WIND SPD 1 1 0 0 1 2 2 1 1 1 1 1 2 2 2 1 1 1 1 1
CLOUDS B2 B2 B2 B2 B1 SC B1 SC SC FW FW FW FW SC SC FW FW FW SC SC
CLOUDS(%) 85 80 82 75 68 45 54 35 34 14 15 15 25 38 38 17 19 24 34 48
VSBY 5 1 1 1 10 10 10 10 10 7 5 8 7 7 7 7 10 10 10
POP 12HR 40 20 5 20 10
RAIN C C S
RAIN SHWRS IS IS
TSTMS IS IS
Obvis PF PF F F
MIX HGT <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR SE SE SE S NW W W NW NW W W NW NW NW NW NW
T WIND SPD 5 5 3 3 5 5 9 6 4 3 3 3 11 8 8 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 3 3 2 4 16 28 46 3 2 2 2 3 51 41 43 4
MAX LVORI 9 9 10 9 5 3 1 3 8 8 10 9 3 1 1 3
STABILITY F F F B B A B G G G G A A A A G
CEILING 200 100 200 None None None None None None
STA PRES 27.35 27.32 27.33 27.28 27.28 27.26 27.24 27.20
Date 07/27Tue 07/28/26Wed 07/29/26Thu 07/30/26Fri 07/31/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 86 64 85 62 83 58 84 59 85
TEMP 81 76 66 66 80 75 66 65 78 74 62 61 79 75 62 63 80 76
DEWPT 65 67 64 66 69 68 65 65 64 63 60 61 62 62 59 61 63 64
RH 58 74 93100 69 79 97100 62 69 93100 56 64 90 93 56 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B1 B2 B1 SC SC SC FW FW SC SC FW FW SC SC
POP 12HR 20 30 70 50 20 10 20 5 20
RAIN SHWRS IS SC SC NM SC IS IS IS
TSTMS IS SC IS IS 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