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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Tue May 26 2026
NCZ006-262000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
131 PM 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 84 68 85 65 84
TEMP 82 82 77 70 70 69 69 78 83 83 77 70 69 67 68 79 82 83 77
DEWPT 71 71 73 70 69 69 69 71 69 69 70 67 66 66 66 67 65 64 65
MAX/MIN RH 69 100 60 97 52
RH 69 69 87100 97100100 79 63 63 79 90 90 97 93 67 56 53 67
WIND DIR SW SW S S SW SW SW SW W SW SW W W W W NW N N N
WIND SPD 4 3 1 1 2 4 5 6 6 6 3 2 2 2 2 5 5 4 0
CLOUDS B2 B2 OV B2 B2 B2 B2 B1 B1 B1 B1 SC SC FW B1 B1 B1 B1 SC
CLOUDS(%) 85 81 88 82 78 71 86 53 60 65 52 43 39 24 57 57 54 54 49
VSBY 10 9 10 9 9 10 10 10 10 10 10 10 10 4 10 10 10 10 10
POP 12HR 50 40 50 40 40
RAIN SHWRS SC SC SC SC IS SC SC SC SC SC
TSTMS IS SC SC IS IS SC IS SC SC
MIX HGT 3 3 <1 <1 <1 <1 1 3 4 3 <1 <1 <1 <1 <1 4 4 4 <1
T WIND DIR SW S S S SW SW SW SW SW SW SW W W W N NE N N N
T WIND SPD 9 10 5 6 5 10 12 16 17 18 9 4 3 3 10 10 4 6 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 29 38 3 3 3 7 23 47 79 78 4 2 2 2 12 40 22 35 3
MAX LVORI 3 3 6 9 8 8 5 3 1 1 4 6 7 8 5 1 2 1 3
STABILITY C B F F F E C C B B F F G G B C B A F
CEILING 3400 3700 3600 1100 None None None None None
STA PRES 29.40 29.39 29.40 29.40 29.29 29.28 29.31 29.35 29.30
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 58 81 60 80 56 76 54 78
TEMP 64 62 78 75 63 63 78 75 61 59 74 72 58 58 76 72
DEWPT 60 57 57 61 57 59 59 60 57 54 55 57 54 55 55 57
RH 87 84 48 62 81 87 52 60 87 83 51 59 86 90 48 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC SC B1 B2 B2 B1 B1 SC SC SC SC SC SC SC
POP 12HR 5 0 10 20 20 10 20 30
RAIN SHWRS IS IS IS IS IS SC
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