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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sun May 10 2026
VAZ012-110800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EDT Sun May 10 2026
Date 05/10/26 Mon 05/11/26 Tue 05/12/26 Wed
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 51 61 37 72 45
TEMP 59 53 52 52 55 57 60 56 47 43 40 45 60 67 70 63 52 48 46 50
DEWPT 49 49 50 50 49 47 42 37 35 33 33 36 36 36 36 40 40 39 38 41
MIN/MAX RH 93 47 86 28 74
RH 69 86 93 93 80 69 51 49 63 67 76 70 41 32 29 43 63 71 73 71
WIND DIR NW NW NW NW N N N NW NW N N N W SW SW S S S S SW
WIND SPD 4 2 3 4 6 2 3 2 1 0 0 0 1 2 1 1 1 2 2 2
CLOUDS B1 B1 OV OV OV OV SC FW CL CL CL CL CL FW FW FW CL FW FW B1
CLOUDS(%) 67 66 93100100 97 46 9 3 1 3 4 2 12 11 9 5 9 22 59
VSBY 10 8 7 6 8 9 9 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 70 90 0 0 0
RAIN SHWRS SC O O SC SC
TSTMS IS
MIX HGT <1 <1 <1 <1 2 3 5 <1 <1 <1 <1 1 5 6 6 <1
T WIND DIR NW NW NE N N NE N NW NW W W W NW W W S
T WIND SPD 2 2 2 2 8 10 6 3 3 3 3 1 8 4 6 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 3 16 26 41 2 2 2 2 2 50 34 53 4
MAX LVORI 3 6 7 9 4 3 1 2 3 3 4 3 1 1 1 2
STABILITY F F F D D D A G G G G A A A A G
CEILING 3600 1400 100 None None None None None None
STA PRES 27.27 27.28 27.33 27.33 27.37 27.39 27.41 27.36
Date 05/13Thu 05/14/26Fri 05/15/26Sat 05/16/26Sun 05/17/26
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 64 39 73 50 82 55 85
TEMP 65 62 49 45 59 56 43 44 68 64 52 54 76 72 59 58 80 75
DEWPT 48 48 44 41 37 37 37 37 38 42 42 44 49 52 50 51 52 53
RH 54 60 83 86 44 49 79 76 33 45 69 69 39 49 72 77 38 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 SC FW FW FW FW CL FW SC SC SC SC SC SC FW FW SC
POP 12HR 60 20 0 0 0 10 10 10 20
RAIN SHWRS SC NM IS IS
TSTMS SC 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