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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1031 AM EDT Thu May 14 2026
NCZ006-142000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
1031 AM EDT Thu May 14 2026
Date Thu 05/14/26 Fri 05/15/26 Sat 05/16/26
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 70 45 78 51 87
TEMP 62 67 68 62 53 48 45 50 66 74 78 71 58 55 52 56 75 84 87 80
DEWPT 42 40 39 39 40 40 39 42 42 41 42 47 45 45 44 47 52 52 54 57
MAX/MIN RH 34 81 28 76 32
RH 48 37 34 43 61 74 79 74 42 30 28 42 62 69 74 72 45 33 32 45
WIND DIR NW NW NW NW NW W W NW NW W W N SW N SW SW SW SW SW S
WIND SPD 9 9 10 5 3 2 2 3 5 4 3 0 1 0 1 2 5 8 8 2
CLOUDS SC SC SC FW CL FW CL CL CL FW SC SC FW FW FW SC FW SC SC SC
CLOUDS(%) 32 32 30 12 4 6 3 4 3 7 26 32 25 21 20 29 23 31 30 36
VSBY 10 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 5 6 7 <1 <1 <1 <1 <1 5 6 6 <1 <1 <1 <1 <1 4 6 6 <1
T WIND DIR NW NW NW NW NW W W NW NW W W SW S SW S SW SW SW SW S
T WIND SPD 17 14 17 18 8 4 4 10 14 12 10 3 3 4 4 5 14 14 14 6
DISPERSION PR VP VP VP VP VP VP VP VP
ADI 93105126 8 4 2 2 12 97 97 80 2 2 2 2 6 76 99 97 3
MAX LVORI 1 1 1 2 3 4 5 3 1 1 1 2 3 3 3 3 1 1 1 2
STABILITY B B B F G G G A A A A G G G G A A B B G
CEILING None None None None None None None None None
STA PRES 29.26 29.35 29.38 29.42 29.38 29.44 29.47 29.50 29.44
Date Sun 05/17/26Mon 05/18/26Tue 05/19/26Wed 05/20/26
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 62 89 64 90 65 90 67 90
TEMP 66 65 88 84 68 67 91 84 70 68 90 84 72 70 89 84
DEWPT 56 59 58 61 60 63 60 62 61 63 61 62 62 64 62 63
RH 70 81 36 46 76 87 36 48 73 84 38 48 71 81 41 49
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC FW FW FW FW FW FW FW FW FW SC FW B1 B1
POP 12HR 5 0 10 5 10 5 5 30
RAIN SHWRS SC SC
TSTMS 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