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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EDT Tue May 26 2026
NCZ006-270800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
301 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 68 85 65 84 58
TEMP 82 77 70 70 69 69 78 83 83 77 70 69 67 68 79 82 83 77 67 64 60 62
DEWPT 71 73 70 69 69 69 71 69 69 70 67 66 66 66 67 65 64 65 62 60 58 57
MIN/MAX RH 100 60 97 52 93
RH 69 87100 97100100 79 63 63 79 90 90 97 93 67 56 53 67 84 87 93 84
WIND DIR SW S S SW SW SW SW W SW SW W W W W NW N N N NE NE NE NE
WIND SPD 3 1 1 2 4 5 6 6 6 3 2 2 2 2 5 5 4 0 1 1 1 2
CLOUDS B2 OV B2 B2 B2 B2 B1 B1 B1 B1 SC SC FW B1 B1 B1 B1 SC B1 B1 B1 SC
CLOUDS(%) 81 88 82 78 71 86 53 60 65 52 43 39 24 57 57 54 54 49 51 54 58 47
VSBY 9 10 9 9 10 10 10 10 10 10 10 10 4 10 10 10 10 10
POP 12HR 40 50 40 40 5
RAIN SHWRS SC SC SC IS SC SC SC SC SC
TSTMS SC SC IS IS SC IS SC SC
MIX HGT 3 <1 <1 <1 <1 1 3 4 3 <1 <1 <1 <1 <1 4 4 4 <1
T WIND DIR S S S SW SW SW SW SW SW SW W W W N NE N N N
T WIND SPD 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 VP VP VP
ADI 38 3 3 3 7 23 47 79 78 4 2 2 2 12 40 22 35 3
MAX LVORI 3 6 9 8 8 5 3 1 1 4 6 7 8 5 1 2 1 3
STABILITY B F F F E C C B B F F G G B C B A F
CEILING 3700 3600 1100 None None None None None None
STA PRES 29.39 29.40 29.40 29.29 29.28 29.31 29.35 29.30
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 81 60 80 56 77 54 78 53 75
TEMP 78 75 64 63 78 74 63 58 74 71 59 58 76 72 59 57 73 70
DEWPT 57 62 58 60 60 61 57 55 56 58 55 56 56 58 55 54 53 55
RH 48 64 81 90 54 64 81 90 53 63 87 93 50 61 87 90 49 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC B1 B2 B2 B1 B1 SC SC SC SC SC SC SC SC SC SC SC
POP 12HR 0 10 20 20 10 20 30 10 20
RAIN SHWRS IS IS IS IS IS SC IS IS
TSTMS 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