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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
601 PM EDT Tue May 26 2026
VAZ018-270800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
601 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 66 80 63 81 56
TEMP 70 68 67 66 68 74 78 78 71 67 65 64 66 75 80 80 70 63 59 57 60
DEWPT 67 65 64 63 64 67 68 67 65 63 60 60 61 63 60 58 58 54 51 49 51
MIN/MAX RH 91 65 87 47 77
RH 90 90 90 90 87 79 71 69 81 87 84 87 84 66 51 47 66 72 75 75 72
WIND DIR S SW W W W W W W W W W NW NW NW NW NW N N N N N
WIND SPD 1 1 1 2 2 5 5 4 3 3 3 3 4 4 4 6 3 2 1 1 0
WIND GUST 13 19 17 16 14 13 13 16 18 17 14 17 16
CLOUDS OV B2 B2 B2 B1 B1 B2 B2 B1 SC B1 B1 SC FW SC FW SC FW FW FW FW
CLOUDS(%) 89 80 87 77 68 69 76 87 61 33 53 53 39 20 35 24 26 23 20 24 23
VSBY 8 4 5 4 7 10 10 10 9 7 5 2 5 5 5 5 5
POP 12HR 70 80 40 10 0
RAIN SHWRS NM SC NM O SC IS IS
TSTMS SC SC SC SC
MIX HGT <1 <1 <1 <1 <1 3 3 3 <1 <1 <1 <1 1 4 6 6 <1
T WIND DIR S E SW W W W W W W NW NW NW NW N NW NW N
T WIND SPD 6 2 4 6 8 24 24 23 17 11 10 9 5 5 11 16 16
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 3 1 2 3 9 75 75 79 8 5 5 4 8 27 79103 7
MAX LVORI 6 7 6 6 5 3 3 3 4 5 5 5 4 3 1 1 3
STABILITY F F F F B C C C F G F F A A A B G
CEILING 600 800 3700 3600 None 1000 None None None
STA PRES 27.83 27.82 27.80 27.74 27.75 27.77 27.79 27.77
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 57 79 55 76 54 75 53 72
TEMP 77 71 60 61 77 71 59 58 74 68 57 58 74 68 57 57 71 65
DEWPT 55 58 52 53 56 56 50 49 54 55 50 51 53 52 48 49 51 52
RH 47 63 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 SC SC SC 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