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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
931 PM EDT Thu May 14 2026
NCZ006-150800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
931 PM EDT Thu May 14 2026
Date 05/14/26 Fri 05/15/26 Sat 05/16/26 Sun
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 44 77 51 86 61
TEMP 52 48 45 50 65 74 77 70 58 55 52 56 74 83 85 79 68 65 61 64
DEWPT 39 39 39 41 41 40 41 46 44 44 43 46 51 52 53 56 54 54 55 58
MIN/MAX RH 82 28 70 32 84
RH 61 71 79 71 41 29 28 42 59 66 71 69 44 34 33 45 61 68 81 81
WIND DIR NW W W NW NW NW W N S S S SW SW SW SW S S S SW SW
WIND SPD 3 2 2 3 5 4 3 0 1 1 1 2 6 9 8 3 3 3 3 4
WIND GUST 13 13
CLOUDS CL CL CL CL CL FW FW FW B1 FW SC SC FW FW FW SC SC SC SC SC
CLOUDS(%) 3 5 3 3 3 10 22 23 52 25 37 44 15 22 24 41 31 41 41 38
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 <1 5 6 6 <1 <1 <1 <1 <1 4 5 3 <1
T WIND DIR NW NW W NW NW NW W SW S SW S SW SW SW SW S
T WIND SPD 9 4 5 10 17 10 9 2 3 5 3 3 13 11 10 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 4 2 3 12101 79 71 1 2 3 2 3 60 72 38 2
MAX LVORI 3 3 5 3 1 1 1 2 3 3 3 3 1 1 1 2
STABILITY G G G A A A A G F G G A B B B F
CEILING None None None None None None None None
STA PRES 29.37 29.42 29.37 29.45 29.48 29.52 29.47
Date 05/17Mon 05/18/26Tue 05/19/26Wed 05/20/26Thu 05/21/26
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 92 63 94 65 93 66 93 65 88
TEMP 90 84 69 67 93 87 70 68 91 86 71 69 91 85 71 68 85 80
DEWPT 59 61 59 61 59 61 60 62 59 61 61 63 62 63 62 63 61 61
RH 35 46 70 81 32 42 71 81 34 43 71 81 38 48 73 84 45 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW CL CL FW FW CL FW FW FW FW FW B1 SC SC B1 B1
POP 12HR 0 0 5 5 5 5 30 30 50
RAIN SHWRS SC SC SC SC
TSTMS SC IS SC
$$
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