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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
202 AM EDT Sat Jul 12 2025
NCZ003-130800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
202 AM EDT Sat Jul 12 2025
Date 07/11/25 Sat 07/12/25 Sun 07/13/25 Mon
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 69 88 70 89 70
TEMP 70 72 82 86 85 80 74 72 71 73 82 87 83 79 74 72 70 72
DEWPT 69 70 73 73 72 73 72 70 69 69 72 71 71 72 71 70 68 69
MIN/MAX RH 97 64 96 59 94
RH 97 93 74 65 65 79 93 93 93 87 72 59 67 79 90 93 93 90
WIND DIR W N SE S SW NW SW NW NW NW NW SW W SE NW NW NW NW
WIND SPD 1 1 1 2 2 2 1 1 2 2 2 2 2 2 2 2 2 2
CLOUDS FW SC FW FW SC B1 SC FW FW FW FW SC B2 B1 SC SC SC FW
CLOUDS(%) 15 26 11 22 50 54 38 21 10 12 13 42 71 57 43 38 26 17
VSBY 9 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 40 20 60 40
RAIN SHWRS SC IS SC NM SC IS
TSTMS SC IS SC NM SC IS
Obvis PF
MIX HGT <1 <1 3 5 3 <1 <1 <1 <1 <1 4 6 3 <1 <1 <1 <1 <1
T WIND DIR NW N NW S S SW NW NW NW NW N NW W W NW NW NW N
T WIND SPD 2 0 1 2 6 6 2 1 2 4 8 3 4 3 1 2 2 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 1 0 4 15 29 3 1 1 1 4 39 25 15 2 1 1 1 3
MAX LVORI 8 8 3 2 3 5 7 8 7 5 3 2 3 5 7 7 7 6
STABILITY G A A A A F G G G A A A B F F G G A
CEILING None None None None None None 3700 None None
STA PRES 28.97 28.99 28.93 28.96 28.95 28.99 28.95 28.97 29.00
Date 07/14Tue 07/15/25Wed 07/16/25Thu 07/17/25Fri 07/18/25
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 89 69 86 70 85 71 86 71 88
TEMP 86 80 70 72 83 77 71 71 82 78 72 72 83 80 73 73 85 78
DEWPT 69 70 68 69 71 72 71 71 72 72 71 71 72 73 71 71 72 73
RH 57 72 93 90 67 85100100 72 82 97 97 70 79 93 93 65 85
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW B1 B1 B1 SC B1 B1 B1 B1 B2 B1 B2 B2 B2 B1 SC B1 B2
POP 12HR 50 30 50 30 60 30 50 20 50
RAIN SHWRS SC SC SC IS SC SC IS NM SC IS SC IS IS SC
TSTMS SC SC SC IS SC SC IS NM SC IS SC IS 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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