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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1101 AM EDT Sun Jul 12 2026
NCZ003-122000-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
1101 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 78 65 72 63 79
TEMP 76 75 72 69 69 67 67 69 70 71 69 67 66 64 65 70 76 79 76
DEWPT 71 71 70 69 69 67 67 69 70 70 68 67 66 64 65 68 68 69 69
MAX/MIN RH 81 100 96 100 71
RH 85 87 93100100100100100100 97 97100100100100 93 76 72 79
WIND DIR NE NE NE E E NE NE NE NE NE NE NE NE NE NE NE E E E
WIND SPD 3 3 4 5 5 6 8 6 6 6 10 9 10 9 9 6 5 4 2
CLOUDS B2 B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B2 B1 B1 SC SC
CLOUDS(%) 85 81 91 90 95 89 94 91 91 89 84 78 76 70 74 59 52 35 30
VSBY 9 7 5 5 5 7 7 5 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 50 90 90 40 20
RAIN SHWRS SC SC NM NM O NM NM O SC NM SC SC IS IS IS IS
TSTMS SC SC IS SC SC IS IS IS
Obvis PF
MIX HGT 3 3 <1 <1 <1 <1 <1 1 2 2 1 <1 <1 <1 1 3 4 4 <1
T WIND DIR NE NE NE NE NE NE NE NE NE NE NE N NE NE NE NE E NE NE
T WIND SPD 5 11 10 9 6 9 8 23 20 11 8 5 4 4 9 10 6 4 3
DISPERSION VP PR PR PR FR PR FR PR VP
ADI 22 38 7 6 5 6 10 40 49 25 7 5 4 4 13 32 32 23 2
MAX LVORI 4 4 6 8 9 8 8 4 4 5 6 9 9 9 5 4 3 3 5
STABILITY B B E E E E C C C C D D D D C C B A G
CEILING 1300 2000 600 600 2500 4700 5100 5900 None
STA PRES 29.04 29.07 29.06 29.12 29.13 29.12 29.10 29.12 29.07
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 65 89 69 92 70 92 69 90
TEMP 66 68 86 82 71 72 90 86 73 72 89 85 72 71 88 84
DEWPT 66 67 69 70 68 68 69 70 68 68 68 69 67 68 68 69
RH 100 97 57 67 90 87 50 59 84 87 50 59 84 90 52 61
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW CL FW FW SC FW FW SC SC SC SC SC
POP 12HR 5 5 0 10 5 20 20 20
RAIN SHWRS IS IS IS
TSTMS 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