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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Tue May 26 2026
VAZ018-262000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM EDT Tue May 26 2026
Date Tue 05/26/26 Wed 05/27/26 Thu 05/28/26
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 75 65 80 64 82
TEMP 71 73 74 71 68 67 66 68 74 77 77 71 67 66 65 67 76 81 79 70
DEWPT 67 68 69 67 66 64 63 64 69 69 69 66 64 62 61 62 63 61 58 57
MAX/MIN RH 81 93 72 90 48
RH 87 84 84 87 93 90 90 87 84 76 76 84 90 87 87 84 64 51 49 63
WIND DIR S S SW SW W W W W W W W W W W NW NW NW NW NW NW
WIND SPD 1 1 1 1 1 1 2 3 5 5 4 3 3 3 4 5 6 6 6 3
WIND GUST 13 18 18 16 14 13 17 19 20 19 18 19 16
CLOUDS B2 B2 OV B2 B2 B1 B1 B1 B2 B2 B2 B2 B1 SC SC SC FW SC SC SC
CLOUDS(%) 87 79100 77 72 61 67 55 72 86 86 70 62 40 48 39 25 34 37 30
VSBY 6 9 10 7 3 6 7 10 9 6 6 9 5 2 2 5
POP 12HR 100 60 80 60 10
RAIN SHWRS NM NM O NM SC SC SC NM NM NM SC
TSTMS IS SC NM IS IS SC SC SC
MIX HGT 1 3 2 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 2 4 6 6 <1
T WIND DIR S S SE S S SW W W W W W W W NW W NW N NW N N
T WIND SPD 4 8 9 10 5 8 5 13 21 18 14 11 5 10 3 6 4 5 5 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 9 27 28 5 3 4 3 14 60 59 39 5 3 5 2 14 21 38 37 3
MAX LVORI 6 4 4 6 6 6 6 4 4 3 3 5 6 6 6 4 2 1 1 3
STABILITY B B B F F F F B B C C F F G E A B B B G
CEILING 100 1600 3300 3800 6900 2100 12600 None None None
STA PRES 27.89 27.84 27.82 27.82 27.81 27.77 27.76 27.75 27.75 27.74
Date Fri 05/29/26Sat 05/30/26Sun 05/31/26Mon 06/01/26
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 55 80 55 76 53 73 53 75
TEMP 58 60 77 70 58 59 74 67 57 56 70 66 56 57 73 67
DEWPT 51 52 54 56 50 51 54 55 50 49 53 54 49 50 52 53
RH 77 75 45 61 75 75 50 65 77 77 55 65 77 77 48 61
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC B1 SC B1 B1 SC SC SC FW FW FW FW
POP 12HR 0 0 5 10 20 10 10 10
RAIN SHWRS 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