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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Jul 4 2026
VAZ046-042000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
801 AM EDT Sat Jul 4 2026
Date Sat 07/04/26 Sun 07/05/26 Mon 07/06/26
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 103 73 101 71 94
TEMP 96102 99 92 82 77 74 77 92 99 99 89 78 74 72 75 87 93 89 81
DEWPT 73 69 67 67 67 67 67 69 71 67 65 68 69 69 69 71 72 72 73 73
MAX/MIN RH 33 80 34 93 51
RH 48 35 36 44 61 71 79 76 51 36 33 50 74 84 90 87 61 51 59 77
WIND DIR E SW S SE S W N S SW S S S NE NE NE NE NE E E NE
WIND SPD 2 5 8 5 4 3 2 1 2 6 8 4 4 4 3 2 3 5 5 3
CLOUDS FW SC B1 B1 SC SC FW FW CL FW FW B1 B1 SC B1 B1 B1 B2 B2 B2
CLOUDS(%) 18 30 51 60 45 46 24 19 2 22 20 61 61 49 60 66 67 80 80 79
VSBY 10 10 10 10 10 10 9 10 10 10 10 10 10 6 3 2 10 10 10 10
POP 12HR 30 10 40 40 70
RAIN SHWRS IS IS SC SC NM NM NM
TSTMS IS IS SC IS SC NM SC
MIX HGT 4 9 7 <1 <1 <1 <1 <1 3 8 8 <1 <1 <1 1 1 3 5 2 <1
T WIND DIR E SW SW SW SW NE N N NE SW S S SW N E E E S E S
T WIND SPD 5 5 9 12 4 3 2 3 5 4 5 12 2 12 5 4 6 5 10 11
DISPERSION PR VP VP VP VP VP VP VP VP
ADI 32 57 45 8 3 2 1 3 23 38 49 8 2 8 3 7 26 25 26 5
MAX LVORI 1 1 1 2 3 3 4 4 2 1 1 2 3 5 6 5 2 2 2 4
STABILITY A A C E E F G A A B B E E E F B B C B F
CEILING None None None None None None 2700 2200 2200 6500
STA PRES 29.29 29.21 29.20 29.22 29.25 29.18 29.21 29.27 29.30 29.25
Date Tue 07/07/26Wed 07/08/26Thu 07/09/26Fri 07/10/26
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 69 89 68 89 69 92 70 95
TEMP 72 73 88 83 72 72 86 83 71 72 90 86 73 74 92 87
DEWPT 72 72 72 72 70 70 70 70 68 70 71 71 69 71 70 71
RH 100 97 59 70 93 93 59 65 90 93 54 61 87 90 49 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 SC B2 B1 B1 B1 SC B1 SC SC B1 SC SC FW SC
POP 12HR 70 60 50 20 30 30 20 20
RAIN SHWRS NM IS IS NM SC IS SC SC IS IS
TSTMS SC SC SC IS IS SC 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