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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 AM EDT Wed May 6 2026
NCZ003-062000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
631 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 75 57 66 42 70
TEMP 59 64 72 73 70 64 61 58 58 61 63 63 59 53 47 43 46 60 67 69 64
DEWPT 52 59 62 64 65 61 59 57 57 58 57 54 48 44 41 38 39 40 42 43 47
MAX/MIN RH 69 96 68 83 38
RH 78 84 71 73 84 90 93 96 96 90 81 72 67 71 79 82 76 47 40 39 54
WIND DIR S S SW SW SW SW N N NW NW NW NW NW NW NW NW N N S S S
WIND SPD 6 8 10 9 3 2 0 0 3 4 5 6 5 3 2 1 0 0 4 5 2
WIND GUST 18 17 12
CLOUDS OV OV OV B2 OV OV OV OV OV B2 B1 B1 FW SC SC FW FW CL FW FW FW
CLOUDS(%) 93100 93 82 97 97 98 97 91 70 66 52 20 27 28 25 14 5 12 19 25
VSBY 9 9 7 9 5 4 5 4 6 6 6 6 7 7 10 10 10 10 10 10 10
POP 12HR 70 100 50 0 0
RAIN SHWRS SC IS SC NM NM NM O NM IS SC IS
TSTMS SC SC SC IS
Obvis PF PF PF PF
MIX HGT <1 2 4 3 <1 <1 <1 <1 1 2 3 3 <1 <1 <1 <1 1 4 7 6 <1
T WIND DIR S SW W W W SW SW SW N N N NW NW NW NW N N W SW SW S
T WIND SPD 13 16 20 19 8 3 2 3 1 6 16 13 13 9 9 8 10 4 8 13 9
DISPERSION VP VP VP VP PR VP VP VP VP
ADI 17 30 79 64 7 3 2 3 2 18 49 45 6 4 4 4 17 25 67 98 4
MAX LVORI 4 3 3 3 4 6 6 8 7 4 3 3 3 3 4 5 3 2 1 1 2
STABILITY D D C C D D D D B C C C F G G G A A A A G
CEILING 1100 3200 1000 300 800 None None None None None
STA PRES 27.98 27.98 27.99 27.94 27.94 27.94 28.03 28.08 28.12 28.04
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 46 76 51 79 54 72 44 71
TEMP 50 51 73 70 55 56 75 73 61 56 69 64 48 47 68 65
DEWPT 45 46 52 54 50 51 57 61 56 52 50 44 39 38 41 44
RH 83 83 48 57 83 83 54 66 84 86 51 48 71 71 37 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC FW FW SC SC B1 B1 B1 B1 SC SC FW FW FW
POP 12HR 5 5 5 50 50 30 10 5
RAIN SHWRS SC SC SC SC IS
TSTMS 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