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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EDT Sat Jul 11 2026
VAZ046-120800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
301 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 67 81 65 77 64
TEMP 86 78 72 71 69 70 76 79 78 74 70 69 67 67 71 75 77 74 68 66 64 67
DEWPT 72 72 72 71 69 70 72 73 72 71 70 69 67 67 71 71 70 69 68 66 64 67
MIN/MAX RH 100 79 100 81 100
RH 63 82100100100100 87 82 82 90100100100100100 87 79 84100100100100
WIND DIR NW N N N NE NE NE NE NE E NE NE NE NE NE NE NE NE NE NE NE NE
WIND SPD 5 3 2 2 3 4 6 6 6 5 4 4 5 6 6 8 6 4 3 3 3 3
CLOUDS B2 B1 B1 B2 B2 OV OV OV OV OV B2 OV OV OV OV OV OV B2 B1 B1 B1 SC
CLOUDS(%) 78 68 55 84 82 90 96 95 95 91 82 90 93 91 95 90 92 81 67 62 61 46
VSBY 10 10 5 7 8 10 9 10 10 9 9 9 10 10 10 10 10 10
POP 12HR 60 80 90 70 20
RAIN SHWRS NM SC SC SC NM NM SC NM O NM NM O O NM NM NM NM IS IS
TSTMS NM SC IS SC SC SC IS IS SC SC IS
Obvis PF
MIX HGT 3 <1 <1 <1 <1 <1 2 2 2 <1 <1 <1 <1 <1 1 2 2 <1
T WIND DIR W NW N NW NW N N NE E E E E NE NE E E E E
T WIND SPD 8 8 6 3 3 10 8 13 13 11 11 9 9 12 10 10 11 9
DISPERSION VP VP VP VP PR VP VP PR VP VP VP VP
ADI 25 4 3 2 2 12 19 38 30 8 8 6 6 14 16 28 23 6
MAX LVORI 2 5 9 10 10 5 4 3 3 5 8 8 8 5 5 4 3 4
STABILITY C F F F F C C C C E E E E C C B B E
CEILING 7700 4300 700 1200 500 4700 1300 19500 27400
STA PRES 29.27 29.31 29.38 29.40 29.44 29.45 29.48 29.43
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 86 67 95 71 94 71 95 71 92
TEMP 84 81 69 71 93 88 74 75 93 87 74 75 93 87 74 74 90 86
DEWPT 69 70 67 68 70 72 68 70 70 71 68 69 68 70 69 70 70 70
RH 61 69 93 90 47 59 82 84 47 59 82 82 44 57 84 87 52 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW CL CL CL CL CL CL FW FW FW FW SC SC SC SC B1
POP 12HR 5 0 0 0 5 5 20 20 30
RAIN SHWRS IS IS SC
TSTMS 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