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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Sun Jul 5 2026
NCZ006-060800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
231 AM EDT Sun Jul 5 2026
Date 07/04/26 Sun 07/05/26 Mon 07/06/26 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 74 95 73 97 71
TEMP 74 77 89 95 93 84 77 76 74 77 90 96 93 85 77 74 72 75
DEWPT 69 70 71 69 69 71 71 71 71 73 74 72 72 73 73 73 72 73
MIN/MAX RH 86 44 92 47 100
RH 84 79 56 43 46 65 82 85 90 87 60 46 51 67 87 97100 94
WIND DIR S SW SW S SW SW N N N N SW SW S SW N N N N
WIND SPD 1 1 1 4 4 1 0 0 0 0 2 4 4 1 0 0 0 0
CLOUDS SC SC FW B1 B1 B1 SC SC SC SC SC B2 B1 B2 B2 B1 B1 SC
CLOUDS(%) 40 45 15 51 51 51 48 37 40 29 47 73 60 86 86 53 53 42
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 40 40 30 60 80
RAIN SHWRS SC SC SC IS NM SC O O
TSTMS SC SC SC IS SC SC SC IS
MIX HGT <1 1 4 9 6 <1 <1 <1 <1 1 4 6 5 <1
T WIND DIR W W SW SW SW W N E SE NW N N N SE
T WIND SPD 1 1 8 9 11 9 6 11 6 4 4 2 2 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 1 2 43 93 80 4 3 5 3 7 23 10 9 2
MAX LVORI 4 4 1 1 1 2 3 4 5 4 2 2 2 3
STABILITY G A A A A F G G F B A C C F
CEILING None None None None None None 4500 4500
STA PRES 29.30 29.30 29.24 29.30 29.34 29.37 29.30
Date 07/07Wed 07/08/26Thu 07/09/26Fri 07/10/26Sat 07/11/26
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 92 69 91 70 94 72 96 72 94
TEMP 91 84 73 73 88 86 73 74 91 88 76 76 93 89 76 75 91 87
DEWPT 73 73 71 71 70 70 69 71 70 71 69 71 70 70 69 70 70 70
RH 56 70 93 93 55 59 87 90 50 57 79 85 47 54 79 84 50 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B2 B2 SC SC B1 SC FW SC B1 SC FW FW SC SC SC SC B1
POP 12HR 70 60 30 20 30 10 20 20 40
RAIN SHWRS NM NM SC IS SC IS IS SC
TSTMS SC SC SC IS SC 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