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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 AM EDT Wed May 27 2026
VAZ018-272000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
731 AM EDT Wed May 27 2026
Date Wed 05/27/26 Thu 05/28/26 Fri 05/29/26
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 79 65 81 55 79
TEMP 67 73 77 77 72 68 67 66 67 74 79 79 72 64 59 56 59 68 76 78 72
DEWPT 64 66 67 66 65 64 63 61 62 62 59 56 55 53 51 49 51 55 56 56 58
MAX/MIN RH 68 88 44 78 46
RH 90 79 71 69 79 87 87 84 84 66 50 45 55 67 75 77 75 63 50 47 61
WIND DIR W W W W W NW W NW NW N NW N N N N E SE S SW SW SW
WIND SPD 5 8 9 8 6 6 4 4 4 6 6 9 8 5 3 1 1 2 3 3 3
WIND GUST 20 19 17 16 16 17
CLOUDS OV OV B2 B2 B1 B1 SC SC SC FW SC SC SC FW FW FW FW FW SC SC SC
CLOUDS(%) 96 90 72 78 55 69 38 31 46 16 49 26 27 23 17 23 22 24 28 40 48
VSBY 5 10 10 10 10 6 6 6 8 10 10 10 10 9 9 3 6 10 10 10 10
POP 12HR 70 40 0 0 0
RAIN SHWRS SC SC NM SC SC
TSTMS SC SC IS IS
MIX HGT <1 3 4 3 <1 <1 <1 <1 1 4 6 6 <1 <1 <1 <1 1 3 4 3 <1
T WIND DIR W W W W W N SW NW N N NW NW N N N NE E SW SW SW S
T WIND SPD 9 21 17 14 12 4 3 5 9 12 10 11 13 4 3 3 5 9 5 8 6
DISPERSION PR PR VP VP PR PR VP VP VP
ADI 7 70 64 51 8 3 2 3 14 56 66 80 9 2 2 2 8 39 33 36 3
MAX LVORI 5 3 3 1 4 6 5 6 4 1 1 1 2 3 3 4 4 3 1 1 3
STABILITY C C C C E E F F A B B B E F G G A A A A F
CEILING 4000 3100 None None None None None None None None
STA PRES 27.81 27.74 27.74 27.75 27.79 27.78 27.84 27.85 27.83 27.72
Date Sat 05/30/26Sun 05/31/26Mon 06/01/26Tue 06/02/26
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 58 80 51 74 51 76 52 73
TEMP 60 61 78 69 56 54 71 66 54 56 73 67 56 56 70 65
DEWPT 52 53 56 56 49 48 52 54 48 50 53 53 48 49 51 52
RH 75 75 47 63 77 80 51 65 80 80 49 61 74 77 51 63
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC SC SC SC FW FW SC SC FW SC SC FW SC SC
POP 12HR 0 10 10 5 5 10 20 20
RAIN SHWRS IS IS 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