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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
201 PM EDT Fri Jul 24 2026
NCZ003-250800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
201 PM EDT Fri Jul 24 2026
Date 07/24/26 Sat 07/25/26 Sun 07/26/26 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 64 79 61 85 62
TEMP 70 69 67 65 64 66 71 75 78 74 68 65 63 65 77 82 84 79 69 65 63 67
DEWPT 66 66 66 65 64 66 71 71 71 71 68 65 62 65 68 68 68 70 67 64 63 66
MIN/MAX RH 100 77 100 59 100
RH 87 90 97100100100100 87 79 90100100 97100 74 63 59 74 93 97100 97
WIND DIR E N N N N N E SE E N N N NW NW N NW NW NW NW NW NW NW
WIND SPD 2 0 0 0 0 0 1 2 1 0 0 0 1 2 3 3 2 1 1 1 1 2
CLOUDS B2 B2 OV OV OV OV B1 B1 B1 SC B1 SC FW SC FW SC SC FW FW FW FW SC
CLOUDS(%) 86 84 92 93 88 90 66 57 54 43 68 41 25 39 18 33 26 17 19 25 18 29
VSBY 7 6 6 1 1 1 10 7 7 10 9 7 5 9 7 7 7 7 10 10 10
POP 12HR 90 40 10 10 5
RAIN C L D C C S
RAIN SHWRS SC SC
TSTMS IS IS
Obvis PF PF PF
MIX HGT 1 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 4 5 5 <1
T WIND DIR E E E SE E E NE NE SE SE N NW NW NW NW NW NW NW
T WIND SPD 3 3 3 4 5 3 2 3 2 1 1 2 3 4 11 8 6 2
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 6 2 2 2 3 4 5 12 7 1 1 1 2 4 53 49 42 1
MAX LVORI 4 7 7 9 9 9 9 5 4 7 10 10 10 9 3 1 1 4
STABILITY B F F F F B B B B F F F G A A A A G
CEILING 600 600 600 600 None None None None None None
STA PRES 28.23 28.22 28.20 28.20 28.14 28.13 28.11 28.09 28.04
Date 07/27Tue 07/28/26Wed 07/29/26Thu 07/30/26Fri 07/31/26
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 87 66 89 67 85 64 86 64 86
TEMP 84 81 69 71 86 81 70 70 84 80 67 68 83 79 67 68 85 78
DEWPT 69 72 67 68 73 73 69 69 69 69 64 65 67 69 64 65 68 71
RH 61 74 93 90 65 77 97 97 61 69 90 90 59 72 90 90 57 79
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B1 B1 B1 SC FW FW FW FW FW SC FW SC SC SC
POP 12HR 5 10 40 40 10 10 20 5 20
RAIN SHWRS SC SC IS IS
TSTMS SC 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