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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
101 PM EDT Mon May 11 2026
NCZ006-112000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
101 PM EDT Mon May 11 2026
Date Mon 05/11/26 Tue 05/12/26 Wed 05/13/26
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 65 43 77 51 79
TEMP 62 58 56 48 47 44 46 65 73 76 69 58 56 52 55 72 78 75 69
DEWPT 50 50 50 48 46 43 46 48 44 43 45 44 44 45 49 53 52 55 58
MAX/MIN RH 49 100 31 81 41
RH 65 75 80100 96 96100 54 35 31 42 59 64 77 80 51 40 50 68
WIND DIR N NE NE N N N N N S S S S S S SW SW SW SW SW
WIND SPD 10 6 1 0 0 0 0 0 2 3 2 3 5 5 5 10 10 9 3
WIND GUST 20 17 16 20 21
CLOUDS OV OV SC SC SC B1 B1 CL CL CL FW CL FW CL FW SC B1 B1 B2
CLOUDS(%) 94 92 46 27 31 52 63 4 5 4 9 5 6 3 7 26 69 69 82
VSBY 10 5 5 7 8 3 7 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 80 0 0 0 60
RAIN SHWRS O SC IS SC NM
TSTMS SC SC
Obvis PF+
MIX HGT 2 2 <1 <1 <1 <1 <1 4 7 7 <1 <1 <1 <1 1 4 6 3 <1
T WIND DIR N NE N NE SW S W E W W S S S S SW SW SW SW SE
T WIND SPD 17 12 6 2 2 1 1 2 3 5 3 5 6 8 14 23 24 14 3
DISPERSION VP VP VP VP VP VP PR PR VP
ADI 34 27 5 1 1 1 1 10 29 48 2 3 3 4 28112110 46 2
MAX LVORI 1 3 3 5 7 9 10 2 2 1 2 3 3 4 3 1 1 1 3
STABILITY D C E F F F A A A A G G F F B B C C F
CEILING 700 None None None None None None None 1400
STA PRES 29.49 29.54 29.55 29.59 29.51 29.52 29.46 29.42 29.28
Date Thu 05/14/26Fri 05/15/26Sat 05/16/26Sun 05/17/26
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 72 45 77 52 88 61 91
TEMP 56 53 69 65 49 50 73 71 56 58 85 80 65 65 90 83
DEWPT 56 49 43 43 43 43 42 48 46 50 54 58 56 59 58 60
RH 100 86 39 45 80 77 33 44 69 75 35 47 73 81 34 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 FW FW FW FW CL FW FW SC SC FW FW SC FW FW FW
POP 12HR 70 0 0 0 0 5 10 5
RAIN SHWRS NM
TSTMS 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