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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Jul 25 2026
NCZ003-252000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM EDT Sat Jul 25 2026
Date Sat 07/25/26 Sun 07/26/26 Mon 07/27/26
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 81 64 82 63 87
TEMP 72 78 79 73 69 67 66 67 74 80 78 73 69 66 64 68 80 84 86 81
DEWPT 69 70 70 70 68 67 66 67 69 69 69 69 67 66 64 66 70 69 70 72
MAX/MIN RH 71 100 69 100 58
RH 90 76 74 90 97100100100 84 69 74 87 93100100 93 72 61 59 74
WIND DIR SE S S E N N N W SE S SW W NW NW NW NW NW W W N
WIND SPD 2 2 3 2 0 0 0 2 3 3 4 3 1 1 1 2 1 3 3 0
CLOUDS B2 B2 B1 SC SC SC FW SC B1 SC SC SC SC SC SC SC SC B1 SC SC
CLOUDS(%) 80 71 57 32 40 36 23 31 65 47 46 37 37 29 28 37 45 57 35 44
VSBY 10 7 7 10 1 1 1 1 10 7 7 7 7 10 10 10 10 10 10 10
POP 12HR 30 10 30 20 10
RAIN SHWRS SC SC IS SC IS IS
TSTMS SC SC IS SC IS IS
Obvis PF PF PF PF
MIX HGT 2 3 2 <1 <1 <1 <1 <1 3 4 3 <1 <1 <1 <1 <1 3 5 4 <1
T WIND DIR N W SW NE E S SW W NE W SW SW SW NW NW N N NW W NW
T WIND SPD 5 4 2 1 1 1 1 2 1 1 2 9 2 2 3 4 6 9 12 10
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 13 15 6 1 1 1 1 2 4 6 9 4 1 1 2 4 30 55 64 5
MAX LVORI 5 4 3 7 10 10 10 9 5 3 3 5 8 10 10 9 4 3 3 4
STABILITY B B B G G G G A B A A G G G G A A B A F
CEILING 1100 None None None None None None None None None
STA PRES 28.20 28.14 28.13 28.09 28.07 28.02 28.01 28.01 28.02 27.97
Date Tue 07/28/26Wed 07/29/26Thu 07/30/26Fri 07/31/26
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 67 89 66 83 62 83 63 84
TEMP 69 71 86 81 71 70 81 77 66 66 81 77 65 67 81 78
DEWPT 67 69 73 73 68 68 67 67 62 63 65 67 61 63 66 69
RH 93 93 65 77 90 93 63 71 87 90 58 71 87 87 60 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC B1 B1 SC SC SC FW FW FW FW SC FW SC SC SC
POP 12HR 10 40 20 10 5 10 5 30
RAIN SHWRS SC IS SC
TSTMS SC 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