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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Wed May 6 2026
NCZ003-070800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 PM EDT Wed May 6 2026
Date 05/06/26 Thu 05/07/26 Fri 05/08/26 Sat
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 54 67 41 71 46
TEMP 64 62 58 55 60 65 66 61 52 47 43 45 61 68 70 64 54 49 47 51
DEWPT 62 60 57 55 56 55 52 47 42 39 36 37 40 41 42 46 45 44 43 45
MIN/MAX RH 99 58 77 36 87
RH 93 93 96100 87 70 61 60 69 74 76 73 46 37 36 52 71 83 86 80
WIND DIR N N N NW N N NW NW NW NW NW N N S S S N N N N
WIND SPD 0 0 0 1 3 4 6 3 3 3 1 0 0 4 6 2 0 0 0 0
WIND GUST 13 16 12
CLOUDS OV OV OV B2 B2 B1 B1 FW FW FW FW FW CL FW FW FW FW SC SC SC
CLOUDS(%) 91 90 90 83 78 62 68 16 6 12 19 22 5 7 11 21 20 31 33 43
VSBY 5 7 4 5 8 7 10 10 10 10 10 10 10 10 10 10
POP 12HR 100 70 0 0 0
RAIN SHWRS O O NM NM IS SC
TSTMS IS IS
MIX HGT <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 1 4 7 7 <1
T WIND DIR SW W W SW N N NW NW NW NW N N W SW SW S
T WIND SPD 4 3 2 1 6 4 6 16 10 9 6 4 2 8 12 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 1 1 19 16 23 7 5 4 3 7 12 67 91 4
MAX LVORI 6 7 8 10 4 3 2 3 3 3 4 3 2 1 1 2
STABILITY F F F B C C C G F G G A A A B G
CEILING 3700 3200 1800 None None None None None None
STA PRES 27.98 27.95 27.96 27.95 28.03 28.08 28.13 28.04
Date 05/09Sun 05/10/26Mon 05/11/26Tue 05/12/26Wed 05/13/26
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 77 51 78 54 71 42 72 48 78
TEMP 74 70 55 56 75 72 60 56 68 63 46 46 68 65 52 53 75 71
DEWPT 52 55 51 51 58 60 57 52 49 43 38 38 42 46 45 46 52 53
RH 46 59 86 83 55 66 90 86 51 48 73 73 39 50 77 77 45 53
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW SC SC B1 B2 B1 B1 SC FW CL FW FW SC SC SC SC
POP 12HR 5 5 40 60 30 0 5 20 20
RAIN SHWRS IS SC NM SC SC IS IS IS IS
TSTMS IS 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