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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Wed May 27 2026
VAZ018-280800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
131 AM EDT Wed May 27 2026
Date 05/26/26 Wed 05/27/26 Thu 05/28/26 Fri
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 65 79 65 81 55
TEMP 67 66 67 73 77 77 72 68 67 66 67 74 79 79 72 64 59 56 59
DEWPT 65 64 64 66 67 66 65 64 63 61 62 62 59 56 55 53 51 49 51
MIN/MAX RH 99 68 88 44 78
RH 93 93 90 79 71 69 79 87 87 84 84 66 50 45 55 67 75 77 75
WIND DIR W W W W W W W NW W NW NW N NW N N N N E SE
WIND SPD 3 4 5 8 9 8 6 6 4 4 4 6 6 9 8 5 3 1 1
WIND GUST 20 19 17 16 16 17
CLOUDS OV OV OV OV B2 B1 B1 B1 SC SC SC FW SC SC SC FW FW FW FW
CLOUDS(%) 99 99 96 90 72 66 55 69 38 31 46 16 49 26 27 23 17 23 22
VSBY 5 5 6 10 10 10 9 5 5 5 7 10 10 10 10 9 9 3 6
POP 12HR 80 70 40 0 0
RAIN SHWRS IS IS SC SC NM SC SC
TSTMS SC SC IS IS
MIX HGT <1 <1 <1 3 4 3 <1 <1 <1 <1 1 4 6 6 <1 <1 <1 <1 1
T WIND DIR SW SW W W W W W N SW NW N N NW NW N N N NE E
T WIND SPD 6 4 9 21 17 14 12 4 3 5 9 12 10 11 13 4 3 3 5
DISPERSION VP VP PR PR VP VP PR PR VP VP
ADI 3 3 7 70 64 51 8 3 2 3 14 56 66 80 9 2 2 2 8
MAX LVORI 6 6 5 3 3 1 4 6 5 6 4 1 1 1 2 3 3 4 4
STABILITY F E C C C C E E F F A B B B E F G G A
CEILING 800 4000 3100 None None None None None None
STA PRES 27.82 27.81 27.74 27.74 27.75 27.79 27.78 27.84 27.85
Date 05/29Sat 05/30/26Sun 05/31/26Mon 06/01/26Tue 06/02/26
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 79 58 79 55 76 54 75 53 72
TEMP 76 72 60 61 77 71 59 58 74 68 57 58 74 68 57 57 71 65
DEWPT 56 58 52 53 56 56 50 49 54 55 50 51 53 52 48 49 51 52
RH 50 61 75 75 48 59 72 72 50 63 77 77 48 57 72 75 49 63
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B1 SC B1 B1 SC FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 0 0 5 10 10 20 20 20 20
RAIN SHWRS IS IS IS 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