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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 PM EDT Sat Jul 25 2026
VAZ018-260800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
501 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 62 83 64 86 67
TEMP 69 65 63 62 65 76 82 82 73 68 66 65 67 79 84 86 78 71 69 68 70
DEWPT 66 63 61 61 60 64 64 64 64 64 62 62 65 68 66 66 67 66 66 66 68
MIN/MAX RH 97 53 94 51 97
RH 90 93 93 97 84 66 55 55 73 87 87 90 93 69 55 51 69 84 90 93 93
WIND DIR S N NW NW NW NW NW NW NW NW NW NW NW NW W W W W W W W
WIND SPD 1 0 1 1 1 2 2 3 2 2 2 2 2 3 3 5 2 2 3 4 6
WIND GUST 18 20
CLOUDS B1 SC SC SC B1 B1 SC SC SC SC SC B1 B1 SC SC SC B1 B1 B2 B2 B2
CLOUDS(%) 55 28 36 43 51 54 42 38 45 40 46 60 57 32 50 41 58 58 78 78 77
VSBY 10 9 4 3 2 10 10 10 10 8 4 5 5 9 10 10 7 7 6 6
POP 12HR 5 20 20 5 70
RAIN SHWRS IS IS IS SC SC NM NM NM
TSTMS IS IS IS IS IS
Obvis PF
MIX HGT <1 <1 <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR W SW W NW NW N NW W NW NW NW NW N N NW SW E
T WIND SPD 6 2 2 3 2 5 4 5 5 3 3 3 2 5 1 6 2
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 3 1 1 2 2 19 21 27 3 2 2 2 2 22 8 45 1
MAX LVORI 6 7 7 8 5 3 2 2 3 6 6 7 6 3 3 1 3
STABILITY F G G F B B A A F G F F B A A A F
CEILING None None None None None None None None 600
STA PRES 27.78 27.75 27.75 27.69 27.70 27.69 27.71 27.67
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 86 65 83 61 83 62 85 64 85
TEMP 84 77 69 68 81 74 65 64 81 74 65 65 83 76 67 66 83 76
DEWPT 72 69 66 65 65 63 60 60 62 62 59 60 63 63 61 62 65 65
RH 67 76 90 90 58 69 84 87 53 66 81 84 51 64 81 87 55 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B1 SC SC SC FW FW FW SC FW FW SC SC SC SC B1 B1
POP 12HR 70 40 10 5 10 5 20 10 40
RAIN SHWRS NM NM SC IS IS SC
TSTMS 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