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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Thu May 7 2026
NCZ003-072000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM EDT Thu May 7 2026
Date Thu 05/07/26 Fri 05/08/26 Sat 05/09/26
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 67 41 70 45 76
TEMP 60 64 65 61 52 47 42 45 61 67 69 64 53 49 46 51 65 73 75 70
DEWPT 57 56 52 47 41 38 35 36 40 42 43 46 45 44 43 45 52 53 53 55
MAX/MIN RH 60 76 39 89 46
RH 90 75 63 60 66 71 76 70 46 40 39 52 74 83 89 80 63 49 46 59
WIND DIR N N N NW NW NW NW N N S S S N N N N SW W W W
WIND SPD 4 5 8 4 5 3 2 0 0 4 6 3 0 0 0 0 4 8 6 1
WIND GUST 14 20 14
CLOUDS B2 B2 B2 SC FW FW FW FW CL CL FW FW SC SC SC SC SC SC SC SC
CLOUDS(%) 84 72 74 28 12 7 10 9 4 4 6 17 37 26 31 42 40 36 29 32
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 60 0 0 0 5
RAIN SHWRS
MIX HGT 2 3 4 <1 <1 <1 <1 <1 4 6 6 <1 <1 <1 <1 <1 3 7 7 <1
T WIND DIR N N N NW NW NW NW N SW SW SW S S S SW S SW W W W
T WIND SPD 8 10 16 12 9 5 5 3 5 8 10 8 4 4 2 5 11 19 18 13
DISPERSION VP PR VP VP VP VP VP VP VP
ADI 21 35 57 6 4 3 3 3 29 60 69 4 2 2 1 6 51143131 6
MAX LVORI 4 3 1 3 3 3 4 3 2 1 1 2 3 5 7 4 1 1 1 3
STABILITY C C C F F G G A A A B G G G G A A B B G
CEILING 1900 None None None None None None None None None
STA PRES 27.96 27.96 28.03 28.09 28.12 28.05 28.03 27.97 27.94 27.92
Date Sun 05/10/26Mon 05/11/26Tue 05/12/26Wed 05/13/26
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 50 79 52 68 41 71 47 75
TEMP 54 55 76 72 60 54 66 62 45 45 68 65 51 51 72 69
DEWPT 51 52 56 59 55 49 47 41 37 36 40 43 42 44 52 54
RH 90 90 50 64 84 83 50 46 73 70 36 45 71 77 49 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC B1 B1 B1 B2 B1 SC SC FW CL FW FW SC SC B1
POP 12HR 5 40 60 20 0 0 20 30
RAIN SHWRS IS SC SC NM IS IS IS SC
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