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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
101 PM EDT Mon May 11 2026
NCZ003-112000-
RAWS 310301
36.48N 80.86W Elev. 1300 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 64 42 74 47 74
TEMP 63 61 59 50 46 43 47 64 71 73 68 56 52 49 52 67 71 73 68
DEWPT 58 55 51 47 43 40 42 46 45 45 47 44 42 41 44 51 55 56 57
MAX/MIN RH 71 91 36 77 55
RH 84 81 75 89 89 89 83 52 39 37 47 64 69 74 74 56 57 55 68
WIND DIR NE NE N N N N N S S S S N SW SW S SW SW SW W
WIND SPD 3 3 0 0 0 0 0 2 4 5 2 0 1 1 2 8 9 6 3
WIND GUST 18 18 13
CLOUDS OV B2 FW FW FW FW FW CL FW SC SC FW CL FW FW SC B2 B2 SC
CLOUDS(%) 94 75 22 24 12 11 6 4 16 36 29 9 4 23 22 43 78 78 28
VSBY 10 4 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 100 0 0 5 60
RAIN SHWRS NM SC NM SC
TSTMS IS SC SC
MIX HGT 2 2 <1 <1 <1 <1 <1 5 6 6 <1 <1 <1 <1 1 2 5 2 <1
T WIND DIR N N SE NW NW NW NW NW W SW SW SW SW SW SW SW SW SW SW
T WIND SPD 11 9 2 2 3 4 3 6 4 8 8 4 6 5 11 14 18 10 6
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 26 26 1 1 2 2 3 44 36 55 4 2 3 3 19 42 75 30 3
MAX LVORI 3 3 3 4 3 3 5 1 1 1 2 3 4 5 3 1 1 2 3
STABILITY C C G G G G A A A A G G G G B C C C G
CEILING 1000 None None None None None None None 400
STA PRES 28.18 28.25 28.27 28.30 28.24 28.25 28.17 28.13 28.01
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 46 67 43 77 51 86 57 88
TEMP 52 49 64 62 47 48 73 70 53 57 82 78 61 62 85 81
DEWPT 49 41 41 41 40 39 42 46 45 47 56 60 56 55 58 59
RH 89 74 43 46 76 71 33 42 74 69 41 54 84 78 40 47
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW FW CL CL FW FW SC SC SC SC SC FW FW FW
POP 12HR 40 0 0 0 5 20 10 10
RAIN SHWRS SC IS
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