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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
413 AM EST Thu Feb 26 2026
NCZ005-262100-
RAWS 310540
36.38N 79.70W Elev. 858 ft
413 AM EST Thu Feb 26 2026
Date Thu 02/26/26 Fri 02/27/26 Sat 02/28/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
MAX/MIN TEMP 57 40 54 40 67
TEMP 48 51 54 56 51 47 45 42 41 45 51 54 50 47 44 42 41 51 63 66 58
DEWPT 48 50 50 49 46 44 42 41 41 43 44 42 42 42 41 40 40 43 43 41 41
MAX/MIN RH 76 100 65 97 40
RH 100 96 86 77 83 89 89 96100 93 77 64 74 83 89 93 96 74 48 40 53
WIND DIR S SE W N NE N N N NE NE E E E E E NW NW W W SW S
WIND SPD 3 5 8 5 3 3 3 3 4 4 4 3 2 2 2 2 2 2 3 2 2
CLOUDS OV OV OV OV B2 B1 B1 B2 B2 B2 B1 SC SC SC SC SC SC FW CL CL CL
CLOUDS(%) 98 95 91 90 87 57 61 72 81 79 53 45 42 41 34 32 34 16 1 2 3
VSBY 4 2 3 7 10 8 5 5 5 9 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 100 20 20 5 5
RAIN D L L S S S
MIX HGT <1 <1 2 3 <1 <1 <1 <1 <1 <1 2 3 <1 <1 <1 <1 <1 <1 3 5 <1
T WIND DIR N E N NE N NW N E E E E E NE NE NE N N N NW NW S
T WIND SPD 0 5 11 5 0 2 2 5 8 11 9 10 12 10 8 8 2 4 8 2 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 0 6 24 14 0 1 1 3 9 14 20 40 6 5 4 4 2 6 34 13 2
MAX LVORI 10 8 4 4 6 7 7 8 8 5 3 1 3 5 6 6 8 3 1 2 2
STABILITY C D D D F F F F D D D B F F G G B B B B G
CEILING 200 100 300 400 500 None None None None None
STA PRES 29.14 29.13 29.24 29.30 29.38 29.35 29.34 29.30 29.33 29.30
Date Sun 03/01/26Mon 03/02/26Tue 03/03/26Wed 03/04/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MIN/MAX TEMP 43 68 38 45 28 47 37 60
TEMP 49 43 68 56 46 38 42 39 34 29 44 43 40 39 57 54
DEWPT 41 40 42 37 35 32 30 26 25 24 30 32 34 36 43 39
RH 74 89 39 49 65 79 62 59 69 81 57 65 79 89 59 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL FW B1 OV OV OV OV OV OV B2 B2 OV OV OV B2
POP 12HR 0 0 30 60 40 50 40 30
FRZG RAIN C C
RAIN C L L C C C C C C C S
SNOW L L
$$
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