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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Wed May 6 2026
NCZ003-070800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
401 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 58 65 44 69 49
TEMP 73 70 66 64 62 59 60 62 63 60 53 49 45 47 59 66 68 63 54 50 49 52
DEWPT 64 65 65 63 61 59 58 55 54 50 45 41 38 39 40 42 43 45 45 45 45 48
MIN/MAX RH 100 69 77 39 89
RH 73 84 97 97 97100 93 78 72 69 74 74 76 74 49 42 40 52 71 83 86 86
WIND DIR SW SW SW SW SW SW N E NE N NW NW NW NW SW S S S S SW SW SW
WIND SPD 10 8 6 4 4 4 5 5 4 4 5 4 3 2 2 5 8 6 4 3 3 3
WIND GUST 21
CLOUDS B2 OV OV OV OV OV B2 B2 B1 FW CL FW FW SC FW FW FW FW FW SC SC SC
CLOUDS(%) 75 92 94 91 92 94 87 80 55 18 4 15 23 27 6 7 12 18 19 39 43 47
VSBY 10 9 6 6 5 5 5 8 10 10 9 10 10 10 10
POP 12HR 100 80 0 0 0
RAIN SHWRS IS NM O O O O SC SC
TSTMS IS SC IS IS IS
MIX HGT 4 <1 <1 <1 <1 <1 2 2 2 <1 <1 <1 <1 <1 3 6 6 <1
T WIND DIR SW SW SW W SW SW N E NE NE NW N NW S N SW SW S
T WIND SPD 17 5 3 4 4 4 1 6 5 2 6 5 1 1 0 6 12 5
DISPERSION PR PR VP VP VP PR VP VP PR VP VP VP
ADI 61 5 2 3 3 5 3 19 16 1 3 3 1 1 0 49 81 3
MAX LVORI 3 5 8 8 8 9 6 3 3 3 3 3 4 3 2 1 1 2
STABILITY C D E E E C C C C F F F G A A A B F
CEILING 5500 2100 900 None None None None None None
STA PRES 28.81 28.78 28.79 28.79 28.88 28.94 28.99 28.89
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 76 53 77 57 71 45 71 50 77
TEMP 72 69 56 57 74 71 62 59 68 63 48 48 67 65 54 53 74 71
DEWPT 53 55 53 53 58 60 59 55 49 44 40 39 42 46 46 47 52 53
RH 51 61 90 86 57 68 90 87 51 50 74 71 40 50 74 80 46 53
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW SC B1 B1 B2 B1 B1 SC FW CL FW FW FW SC SC SC
POP 12HR 5 5 50 60 30 5 5 10 10
RAIN SHWRS SC NM SC SC SC
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