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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1101 AM EDT Fri May 8 2026
NCZ006-082000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
1101 AM EDT Fri May 8 2026
Date Fri 05/08/26 Sat 05/09/26 Sun 05/10/26
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 72 49 78 53 83
TEMP 69 71 63 54 52 50 54 68 75 77 72 62 57 54 58 74 81 82 75
DEWPT 36 36 40 43 43 44 51 58 57 57 58 57 56 54 56 59 56 55 58
MAX/MIN RH 27 90 49 100 39
RH 30 28 43 66 71 80 90 70 54 50 61 84 96100 93 59 42 40 55
WIND DIR S SW S S S S S SW SW SW SW SW N N N N S S S
WIND SPD 1 4 2 2 2 3 3 8 9 8 2 2 0 0 0 1 3 3 1
WIND GUST 19
CLOUDS CL CL SC B1 FW FW SC SC SC FW SC SC SC SC SC SC FW FW B1
CLOUDS(%) 3 4 37 60 25 10 49 26 34 24 39 29 38 44 49 32 22 24 57
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 10 20 10
RAIN SHWRS SC
TSTMS IS
MIX HGT 6 7 <1 <1 <1 <1 <1 4 5 5 <1 <1 <1 <1 <1 3 6 7 <1
T WIND DIR SW SW S S S S S SW SW W W SW SW SW W E S SW SW
T WIND SPD 4 10 5 5 6 6 16 21 19 20 6 3 3 3 2 2 8 10 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 34 83 3 3 3 3 20101119116 3 2 2 2 2 9 63 85 2
MAX LVORI 1 1 2 3 3 5 4 3 1 1 3 5 8 10 6 2 1 1 3
STABILITY A A G F G G A B B B G G G F A A A A F
CEILING None None None None None None None None None
STA PRES 29.33 29.32 29.27 29.25 29.19 29.27 29.31 29.35 29.28
Date Mon 05/11/26Tue 05/12/26Wed 05/13/26Thu 05/14/26
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 56 71 43 71 48 74 50 75
TEMP 61 59 66 63 48 47 67 64 52 53 71 68 55 53 72 68
DEWPT 57 58 55 50 44 42 40 43 42 47 53 55 51 51 51 51
RH 87 96 68 62 86 83 37 46 69 80 53 63 86 93 48 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B2 B1 B1 FW FW CL FW SC B1 B2 B1 FW FW SC
POP 12HR 40 70 10 0 5 60 40 20
RAIN SHWRS SC SC NM SC SC NM SC IS IS
TSTMS IS 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