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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EDT Tue May 12 2026
VAZ018-122000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
1001 AM EDT Tue May 12 2026
Date Tue 05/12/26 Wed 05/13/26 Thu 05/14/26
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 74 52 72 47 61
TEMP 65 71 72 63 56 53 52 56 67 68 68 61 56 50 47 48 54 59 60 55
DEWPT 43 40 42 46 43 39 38 43 50 54 55 52 48 44 40 39 40 40 39 38
MAX/MIN RH 32 61 55 78 46
RH 45 32 34 54 62 59 59 62 54 61 63 72 74 80 76 71 59 49 46 53
WIND DIR S SW SW S SW SW SW SW SW SW SW SW NW NW NW NW NW NW NW NW
WIND SPD 3 4 4 2 3 5 6 8 8 6 6 5 5 5 6 12 12 11 12 9
WIND GUST 12 17 23 24 26 24 21 23 23 24 23 26 34 33 29 31 29
CLOUDS CL FW SC SC FW CL FW FW B1 B2 B2 B1 B1 SC SC SC SC SC SC SC
CLOUDS(%) 1 16 34 40 12 4 14 13 65 85 78 56 56 35 34 30 43 50 45 34
VSBY 10 10 10 10 10 10 10 10 10 10 9 9 9 9 10 10 9 9 9 9
POP 12HR 0 0 70 30 0
RAIN SHWRS SC NM SC SC
TSTMS SC SC IS
MIX HGT 5 7 7 <1 <1 <1 <1 <1 4 3 4 <1 <1 <1 <1 3 4 5 4 2
T WIND DIR W SW SW S S SW SW SW S SW SW W NW NW NW NW NW NW NW NW
T WIND SPD 6 9 11 8 6 6 6 16 12 21 10 11 13 23 23 29 28 25 29 23
DISPERSION VP VP PR PR PR PR PR PR PR
ADI 45 75 91 4 3 3 3 21 49 67 37 8 9 10 10 95102100117 15
MAX LVORI 1 1 1 3 3 3 3 2 1 1 1 3 4 4 4 3 1 1 1 2
STABILITY A A A G G F F B C C C E E F F C C C C E
CEILING None None None 3000 1900 1500 None None None
STA PRES 27.88 27.87 27.82 27.75 27.65 27.65 27.65 27.65 27.67
Date Fri 05/15/26Sat 05/16/26Sun 05/17/26Mon 05/18/26
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 44 73 52 84 60 87 64 89
TEMP 46 48 69 64 54 58 82 75 63 64 85 78 67 68 88 81
DEWPT 37 38 41 44 42 48 56 57 53 56 58 60 55 58 59 61
RH 71 68 36 48 64 69 41 54 70 75 40 54 65 70 38 51
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW SC SC FW SC SC SC FW SC SC SC SC FW SC
POP 12HR 0 0 10 10 10 20 5 20
RAIN SHWRS IS IS
TSTMS IS 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