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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1101 PM EDT Tue May 26 2026
NCZ003-270800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
1101 PM EDT Tue May 26 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 63 80 60 81 56
TEMP 67 65 65 74 78 78 74 67 64 62 64 76 79 81 75 66 60 57 60
DEWPT 66 64 65 69 69 70 69 65 62 60 63 66 65 63 64 59 56 54 56
MIN/MAX RH 100 72 97 55 92
RH 97 97100 84 74 76 84 93 93 93 97 71 62 54 69 78 87 90 87
WIND DIR N N N SW SW SW SW N W NW NW NW N N N N N N N
WIND SPD 0 0 0 1 4 3 1 0 1 1 2 5 6 5 2 2 1 0 0
CLOUDS OV B2 B2 B1 B2 B2 SC FW FW SC B1 B1 SC SC SC SC SC SC SC
CLOUDS(%) 89 73 77 68 82 72 47 23 21 34 57 57 38 40 39 34 32 38 50
VSBY 1 1 1 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 80 70 20 40 5
RAIN SHWRS NM NM IS SC SC
TSTMS SC SC IS IS
Obvis F F F
MIX HGT <1 <1 <1 2 3 3 <1 <1 <1 <1 1 4 4 5 <1
T WIND DIR SW SW W W W W W W NW NW NW N N N N
T WIND SPD 3 3 4 4 13 16 11 4 8 8 6 9 11 13 16
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 2 2 5 10 44 56 5 2 4 4 13 32 57 84 7
MAX LVORI 8 10 9 5 3 3 5 6 6 6 5 3 1 1 3
STABILITY F F B B C B F G G G B C B A G
CEILING 600 600 4200 None None None None None
STA PRES 28.17 28.16 28.08 28.08 28.09 28.12 28.08
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 77 56 77 53 74 52 76 51 72
TEMP 75 73 61 60 75 72 60 57 72 69 57 57 74 70 57 56 70 68
DEWPT 60 64 57 58 61 62 55 54 58 60 54 54 57 59 52 51 54 56
RH 60 73 87 93 62 71 84 90 61 73 90 90 55 68 83 83 57 65
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC
POP 12HR 5 20 20 20 20 20 30 20 20
RAIN SHWRS IS IS IS IS IS IS IS SC IS IS IS IS IS
TSTMS IS IS 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