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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 310301
36.48N 80.86W Elev. 1300 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 77 63 73 61 80
TEMP 75 74 72 69 68 66 66 70 71 71 69 67 65 63 65 72 77 79 76
DEWPT 72 72 71 69 68 66 66 70 70 70 69 67 65 63 65 68 69 69 70
MAX/MIN RH 85 100 96 100 70
RH 90 93 97100100100100100 97 97100100100100100 87 76 72 82
WIND DIR E NE E NE N N E E E E NE NE NE NE NE E E E N
WIND SPD 2 2 1 1 0 0 2 4 5 4 3 2 2 1 2 3 4 3 0
CLOUDS OV B2 OV B2 OV OV OV OV OV B2 B2 B2 B2 B1 B1 B1 B1 SC FW
CLOUDS(%) 96 78 88 85 94 89 97 89 88 82 83 84 81 63 63 59 51 30 23
VSBY 7 7 5 5 5 7 5 4 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 70 90 80 60 20
RAIN SHWRS NM NM NM NM O NM NM O NM NM NM NM IS IS IS IS
TSTMS IS SC SC IS SC SC IS IS IS
Obvis PF PF
MIX HGT 3 2 <1 <1 <1 <1 <1 1 2 2 1 <1 <1 <1 <1 2 3 4 <1
T WIND DIR E E E E E E E E E E NE NE NE NE NE E E E SE
T WIND SPD 2 8 11 10 6 9 10 23 17 14 8 5 4 3 8 8 5 4 1
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 7 18 5 5 3 4 11 44 40 34 4 3 2 2 10 25 24 21 1
MAX LVORI 6 5 9 9 9 9 7 4 4 4 9 9 9 10 7 4 3 3 6
STABILITY B B F F F F B C C C F F F F B B B A G
CEILING 1700 600 600 700 1100 3800 3900 5500 None
STA PRES 28.22 28.25 28.24 28.29 28.30 28.30 28.27 28.30 28.25
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 63 90 67 92 68 91 67 90
TEMP 66 68 87 83 70 72 90 86 72 73 89 85 70 72 88 84
DEWPT 65 66 69 72 66 68 70 72 66 68 69 71 66 68 69 71
RH 97 93 55 70 87 87 52 63 81 84 52 63 87 87 54 65
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW SC SC FW SC SC SC SC SC SC
POP 12HR 5 10 0 10 5 20 10 20
RAIN SHWRS 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