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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Thu May 14 2026
VAZ018-150800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
401 PM EDT Thu May 14 2026
Date 05/14/26 Fri 05/15/26 Sat 05/16/26 Sun
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 44 73 52 84 60
TEMP 58 52 48 45 44 48 61 70 72 63 56 53 52 56 73 81 83 75 66 62 60 64
DEWPT 36 35 36 35 34 36 38 39 39 41 38 38 38 43 49 53 55 57 54 52 51 55
MIN/MAX RH 70 30 61 37 76
RH 44 52 63 68 68 63 42 32 30 44 51 57 59 62 43 38 38 54 65 70 72 73
WIND DIR NW NW NW NW NW NW NW NW NW NW N N W SW SW SW SW SW SW W W W
WIND SPD 10 9 5 4 5 8 9 6 3 1 0 0 1 1 2 4 4 2 3 3 2 1
WIND GUST 26 27 27 24 23 28 23 12 14 14 13
CLOUDS SC FW FW CL CL FW FW SC B1 B1 SC SC SC SC FW SC SC SC SC SC SC FW
CLOUDS(%) 40 12 7 3 3 14 15 29 59 69 48 37 34 34 17 38 48 40 32 39 46 25
VSBY 10 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 10 5
MIX HGT 5 1 <1 <1 <1 2 4 4 4 <1 <1 <1 <1 <1 4 6 2 <1
T WIND DIR NW NW W W W NW NW NW W NW NW W W SW W W SW S
T WIND SPD 21 23 8 5 6 17 21 11 9 13 3 2 1 1 8 11 10 4
DISPERSION PR PR VP PR VP VP VP VP VP VP VP VP
ADI 119 15 4 3 3 34 99 57 44 6 2 1 1 1 37 88 25 2
MAX LVORI 1 2 3 3 3 1 1 1 1 2 2 3 3 3 1 1 2 2
STABILITY B E F F F B B B B F F G G A A A A G
CEILING None None None None None None None None None
STA PRES 27.73 27.75 27.80 27.77 27.85 27.87 27.90 27.88
Date 05/17Mon 05/18/26Tue 05/19/26Wed 05/20/26Thu 05/21/26
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 89 61 91 63 90 65 88 65 82
TEMP 87 77 65 67 90 82 67 68 89 81 69 70 87 78 68 67 81 75
DEWPT 55 58 54 57 58 58 55 58 57 59 56 59 60 60 58 59 60 58
RH 34 52 68 70 34 44 65 70 34 47 63 68 40 54 70 75 49 55
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW CL CL FW SC FW SC SC B2 B1 SC B1 B2
POP 12HR 5 5 10 5 20 10 60 40 60
RAIN SHWRS IS IS NM SC IS SC NM
TSTMS IS SC IS 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