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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Sat Jul 11 2026
VAZ024-120800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
731 PM EDT Sat Jul 11 2026
Date 07/11/26 Sun 07/12/26 Mon 07/13/26 Tue
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 66 81 64 79 62
TEMP 78 72 69 68 69 76 79 79 74 70 68 66 66 72 76 78 74 68 65 63 66
DEWPT 71 70 69 68 69 71 71 71 70 69 68 66 66 69 69 68 67 66 65 63 66
MIN/MAX RH 100 74 100 73 100
RH 79 93100100100 85 77 77 87 97100100100 90 79 71 79 93100100100
WIND DIR NW N N N N E E E E E NE NE NE E E E E NE N N N
WIND SPD 1 0 0 0 0 1 2 2 1 1 1 2 2 3 4 3 1 1 0 0 0
CLOUDS B2 B2 B2 OV OV OV OV OV B2 B2 B2 OV B2 B2 B2 B2 B2 B1 B1 SC SC
CLOUDS(%) 80 82 85 88 92 93 95 89 77 86 82 93 82 83 85 87 75 62 55 50 48
VSBY 10 9 6 6 9 10 10 9 10 5 4 5 7 8 10 10 10
POP 12HR 70 80 90 70 20
RAIN SHWRS SC SC NM SC O NM NM O NM O NM O NM NM NM NM IS IS
TSTMS IS SC SC SC SC IS IS IS SC SC IS
Obvis PF F F F
MIX HGT <1 <1 <1 <1 <1 2 2 2 <1 <1 <1 <1 1 2 2 2 <1
T WIND DIR N NW NW NW N NE NE E E E E NE NE E E E E
T WIND SPD 6 3 3 3 3 4 12 11 8 5 9 8 9 9 9 10 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 3 2 2 2 4 12 35 25 4 3 4 4 13 21 27 27 4
MAX LVORI 5 8 10 10 9 4 3 3 6 9 9 9 5 4 3 3 4
STABILITY F F F F B B B B F F F F B B B A F
CEILING 6000 4300 900 1900 2100 800 6500 21600 30900
STA PRES 28.50 28.54 28.60 28.61 28.65 28.66 28.69 28.65
Date 07/14Wed 07/15/26Thu 07/16/26Fri 07/17/26Sat 07/18/26
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 88 64 96 68 96 68 96 68 93
TEMP 85 81 68 68 93 87 72 73 95 87 73 73 93 86 72 72 90 84
DEWPT 68 70 65 67 69 71 68 69 69 71 68 69 68 70 68 69 69 70
RH 57 69 90 97 46 59 87 87 43 59 84 87 44 59 87 90 50 63
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW CL FW CL CL CL FW FW FW FW FW B1 SC SC SC B1
POP 12HR 5 0 0 0 5 5 30 20 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