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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri May 8 2026
NCZ006-090800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
801 PM EDT Fri May 8 2026
Date 05/08/26 Sat 05/09/26 Sun 05/10/26 Mon
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 49 78 54 85 56
TEMP 54 53 51 54 68 75 78 73 62 59 55 59 76 83 84 77 66 62 58 61
DEWPT 44 43 45 51 58 57 56 59 58 57 55 57 59 55 54 58 57 58 58 59
MIN/MAX RH 89 48 100 35 100
RH 69 69 80 90 70 54 47 62 87 93100 93 56 38 36 52 73 87100 93
WIND DIR S S S S SW SW SW SW SW W W N N SW S S S SW SW NW
WIND SPD 2 2 3 3 6 8 8 2 2 1 1 0 0 3 4 2 1 1 1 3
CLOUDS SC SC SC SC B1 B1 SC SC SC B1 B2 SC FW FW SC SC SC B1 B1 B2
CLOUDS(%) 35 48 34 47 51 52 29 45 50 63 77 42 23 21 26 32 27 57 68 84
VSBY 10 10 10 10 10 10 10 10 10 10 7 10 10 10 10 10 10 10 10 3
POP 12HR 0 10 20 0 40
RAIN SHWRS IS SC SC O
TSTMS IS
MIX HGT <1 <1 <1 1 4 6 5 <1 <1 <1 <1 <1 3 7 7 <1
T WIND DIR S S S S SW SW SW SW SW W W W SW SW S S
T WIND SPD 4 4 6 12 18 16 19 4 3 3 2 2 3 8 12 5
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 3 17 66 70120 2 2 2 1 2 14 69101 3
MAX LVORI 3 3 5 4 3 1 1 3 5 7 10 6 2 1 1 2
STABILITY G F G A C C B F F F F A A A A G
CEILING None None None None None 26300 None None None
STA PRES 29.32 29.30 29.29 29.21 29.28 29.34 29.36 29.28
Date 05/11Tue 05/12/26Wed 05/13/26Thu 05/14/26Fri 05/15/26
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 71 43 70 47 75 50 75 49 78
TEMP 68 62 48 47 67 64 51 52 72 69 56 54 72 68 53 53 75 71
DEWPT 56 52 47 43 39 42 42 45 51 54 52 51 49 49 46 48 49 50
RH 65 70 96 86 36 45 71 77 48 59 86 90 44 51 77 83 40 47
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B1 FW FW FW FW SC B1 B1 B1 SC FW FW SC FW SC SC
POP 12HR 80 20 0 5 50 50 20 0 5
RAIN SHWRS O NM IS IS SC SC IS
TSTMS IS 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