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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun Jul 12 2026
VAZ018-122000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM EDT Sun Jul 12 2026
Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26
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 76 64 73 61 83
TEMP 74 75 73 68 68 68 67 65 68 71 71 67 66 64 62 64 74 80 82 75
DEWPT 70 71 70 68 66 66 65 65 68 69 68 65 63 62 61 62 65 65 65 67
MAX/MIN RH 87 100 85 98 56
RH 87 87 90100 93 93 93100100 93 90 93 90 93 97 93 74 60 56 76
WIND DIR E E E E E E E E E E E E E E NE NE E E SE S
WIND SPD 2 2 2 2 2 2 3 4 4 5 5 3 2 2 2 2 2 3 3 1
WIND GUST 12 12 13 16 16 14
CLOUDS OV OV OV B2 OV OV OV OV B2 B2 B1 B2 B1 B1 SC SC FW FW FW FW
CLOUDS(%) 92 91 88 86 90 89 92 92 79 75 53 78 63 57 45 45 18 19 8 13
VSBY 10 5 4 5 3 2 2 2 8 8 10 10 10 10 10 10 10 10 10 10
POP 12HR 70 90 80 20 5
RAIN SHWRS SC NM SC NM O O NM SC NM SC IS IS
TSTMS SC SC IS SC
Obvis PF PF PF
MIX HGT 2 2 2 <1 <1 <1 <1 <1 2 2 3 1 <1 <1 <1 <1 2 4 4 <1
T WIND DIR E E E E E E E E E E E SE W NW NW N E E E S
T WIND SPD 8 13 11 3 2 9 8 11 16 16 11 3 2 2 3 3 10 8 3 1
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 19 33 26 2 1 4 4 11 32 45 35 2 1 1 2 3 33 40 17 1
MAX LVORI 4 4 4 10 8 6 8 7 4 4 4 7 7 7 8 6 3 1 2 4
STABILITY B B B F F F F C C C C F F F F A A A A G
CEILING 100 100 100 100 600 4200 None None None None
STA PRES 27.91 27.93 27.94 27.94 27.98 27.98 27.98 27.96 27.98 27.93
Date Wed 07/15/26Thu 07/16/26Fri 07/17/26Sat 07/18/26
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 64 92 68 92 68 91 67 90
TEMP 66 68 89 81 71 72 90 81 71 71 89 79 70 70 87 79
DEWPT 62 64 68 68 66 67 68 67 65 66 66 66 64 65 67 67
RH 87 87 50 65 84 84 49 63 81 84 47 64 81 84 52 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW CL FW FW SC FW SC SC B1 SC SC SC
POP 12HR 0 5 0 10 10 20 20 20
RAIN SHWRS IS IS IS
TSTMS 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