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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Sun Jul 26 2026
VAZ018-270800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
131 AM EDT Sun Jul 26 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 63 83 63 84 68
TEMP 65 66 67 75 80 81 74 69 67 64 68 77 82 84 77 71 69 68 70
DEWPT 64 62 61 63 64 64 64 64 63 62 64 66 65 64 65 65 65 66 67
MIN/MAX RH 98 55 95 52 93
RH 97 87 81 66 58 56 71 84 87 93 87 69 56 51 67 81 87 93 90
WIND DIR W NW NW NW W NW NW NW NW NW NW NW NW NW NW W W W W
WIND SPD 1 2 3 3 3 4 4 4 2 3 3 4 4 5 4 4 3 4 6
WIND GUST 18 20
CLOUDS SC B1 SC SC SC SC SC SC FW FW B1 FW B1 SC SC SC B2 B2 OV
CLOUDS(%) 33 62 47 45 41 33 33 34 25 22 56 22 59 43 43 43 80 80100
VSBY 1 10 10 10 10 10 10 10 10 10 10 10 10 10 7 7 6 6 6
POP 12HR 10 20 10 5 60
RAIN SHWRS IS IS NM NM O
TSTMS IS IS IS
Obvis PF
MIX HGT <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 3 6 5 <1 <1 <1 <1 <1
T WIND DIR W NW NW N NW W NW N NW NW NW N NW NW NW NW W W W
T WIND SPD 2 3 4 4 6 5 10 2 2 2 2 8 8 14 10 10 3 2 3
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 1 2 4 18 44 33 5 1 1 1 2 35 36100 7 7 2 2 4
MAX LVORI 8 6 4 3 1 1 3 5 6 7 6 3 1 1 3 4 5 7 6
STABILITY G F A A A A F F G G B A C A E E F E D
CEILING None None None None None None None None 20200
STA PRES 27.76 27.75 27.67 27.68 27.68 27.69 27.67 27.65 27.62
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 85 66 82 61 84 61 85 64 85
TEMP 84 74 69 68 81 72 64 64 82 72 64 65 84 73 66 67 84 73
DEWPT 73 69 66 65 65 62 60 60 62 61 59 60 63 64 61 63 66 66
RH 70 84 90 90 58 71 87 87 51 68 84 84 49 73 84 87 55 79
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B2 B1 SC SC SC FW FW FW FW FW FW SC SC SC B1 B1 B1
POP 12HR 80 30 10 5 5 5 10 10 40
RAIN SHWRS O NM SC IS SC
TSTMS SC NM 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
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