Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1031 PM EDT Sat Jul 25 2026
VAZ012-260800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
1031 PM EDT Sat Jul 25 2026
Date 07/25/26 Sun 07/26/26 Mon 07/27/26 Tue
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 80 60 83 64
TEMP 67 65 64 62 72 76 80 74 65 63 61 63 74 80 83 77 68 66 65 66
DEWPT 61 60 60 62 67 66 66 64 63 61 60 63 66 65 65 65 65 65 64 66
MIN/MAX RH 99 62 100 53 100
RH 81 84 87100 84 71 62 71 93 93 97100 76 60 55 67 90 97 97100
WIND DIR NW NW NW W NW NW NW NW NW NW NW NW NW NW W W W W W W
WIND SPD 2 2 1 1 1 2 2 1 1 1 1 2 2 2 2 2 2 3 3 4
CLOUDS SC B1 B1 B1 B1 B1 B1 SC FW SC SC B1 SC B1 SC SC SC B2 B2 B1
CLOUDS(%) 37 58 65 67 60 59 51 31 25 48 44 59 50 51 41 45 48 71 71 68
VSBY 10 8 4 4 10 10 10 10 10 8 4 8 9 10 10 7 7 6 6
POP 12HR 20 30 10 10 60
RAIN SHWRS IS IS SC IS IS NM NM SC
TSTMS IS SC IS IS
Obvis PF PF PF PF PF
MIX HGT <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 2 4 5 <1
T WIND DIR W W W N N NW NW NW NW W W W NW W NW NW
T WIND SPD 3 3 2 3 3 5 6 5 3 2 2 2 4 6 10 10
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 1 4 11 26 34 3 2 1 1 2 13 35 62 5
MAX LVORI 7 10 10 9 4 3 1 3 8 8 8 9 4 1 1 3
STABILITY G G F B B A A G G F F B A B A F
CEILING 0 1000 None None None None None None
STA PRES 27.23 27.22 27.17 27.18 27.17 27.19 27.16
Date 07/28Wed 07/29/26Thu 07/30/26Fri 07/31/26Sat 08/01/26
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 84 61 80 55 81 55 83 59 83
TEMP 79 75 66 64 76 72 60 60 76 72 59 60 79 74 62 62 79 74
DEWPT 70 68 65 64 64 62 58 59 61 61 57 59 61 62 59 61 63 64
RH 74 79 97100 66 71 93 96 60 68 93 96 54 66 90 97 58 71
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 OV B1 SC B1 SC FW FW SC SC FW FW SC SC SC SC B1 B1
POP 12HR 80 50 10 5 10 5 20 10 40
RAIN SHWRS SC O SC IS IS SC
TSTMS SC SC SC IS 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