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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 AM EDT Wed May 6 2026
NCZ003-062000-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
501 AM EDT Wed May 6 2026
Date Wed 05/06/26 Thu 05/07/26 Fri 05/08/26
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 76 59 64 45 68
TEMP 59 64 72 74 70 66 63 62 60 61 61 62 59 54 48 45 48 59 65 68 62
DEWPT 54 58 61 63 64 64 62 61 59 60 58 55 51 47 43 40 41 42 42 44 47
MAX/MIN RH 66 97 76 83 42
RH 83 81 68 69 81 93 97 97 96 97 90 78 75 77 83 82 77 53 43 42 58
WIND DIR SW SW SW SW SW W SW SW SW N N N NW N NW N N NE S S S
WIND SPD 11 11 12 11 9 6 3 3 5 6 5 6 6 6 5 4 3 2 4 6 5
WIND GUST 21 24 23 21
CLOUDS OV OV B2 OV OV OV OV OV OV B2 B2 B2 SC SC SC SC FW FW FW FW FW
CLOUDS(%) 100100 78 88100100100100 92 82 85 77 42 27 29 31 23 9 15 18 20
VSBY 8 10 6 8 7 4 3 3 3 3 6 6 7 7 10 10 10 10 10 10 10
POP 12HR 50 100 70 0 0
RAIN SHWRS SC SC SC SC SC NM O NM SC NM SC
TSTMS IS IS SC IS IS IS
MIX HGT 1 2 4 3 <1 <1 <1 <1 <1 2 2 2 <1 <1 <1 <1 <1 4 6 5 <1
T WIND DIR S SW SW W W SW W SW SW NE N NE S W NW NW NW W SW SW S
T WIND SPD 14 17 20 19 6 2 3 8 3 3 12 6 1 3 5 3 2 1 8 13 6
DISPERSION PR PR VP VP PR PR PR VP PR
ADI 21 33 59 50 6 2 3 7 4 8 36 17 1 2 3 2 2 6 59 82 3
MAX LVORI 4 3 1 1 4 6 8 6 8 6 4 3 4 4 5 5 4 2 1 1 3
STABILITY D D D D D D D D C C C C E F F F A A A B F
CEILING 1100 2600 3700 300 300 2100 None None None None
STA PRES 28.82 28.79 28.81 28.77 28.77 28.79 28.86 28.94 28.98 28.88
Date Sat 05/09/26Sun 05/10/26Mon 05/11/26Tue 05/12/26
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 49 75 53 79 57 72 46 71
TEMP 51 52 71 69 56 56 75 73 62 59 69 64 49 49 67 64
DEWPT 47 49 53 55 52 53 58 61 58 55 52 46 41 40 42 44
RH 86 89 53 61 86 90 55 66 87 87 55 52 74 71 40 48
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC FW FW SC SC B1 B1 B1 B1 B1 SC FW FW FW
POP 12HR 10 5 5 40 50 30 10 5
RAIN SHWRS SC SC SC SC SC
TSTMS 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