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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1232 AM EST Fri Feb 27 2026
VAZ046-280900-
RAWS 441101
37.39N 78.80W Elev. 804 ft
1232 AM EST Fri Feb 27 2026
Date 02/26/26 Fri 02/27/26 Sat 02/28/26 Sun
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
MIN/MAX TEMP 39 55 40 66 42
TEMP 43 41 39 45 52 54 50 45 43 41 41 51 61 64 56 50 47 44 43
DEWPT 39 39 38 41 41 40 40 39 38 39 39 43 43 41 41 40 39 39 37
MIN/MAX RH 94 59 94 43 83
RH 86 92 96 86 66 59 68 79 82 92 92 74 51 43 57 68 74 82 79
WIND DIR NE NE E E SE SE SE SE S SW SW W W SW S SW SW SW SW
WIND SPD 2 2 2 3 3 3 2 2 2 2 2 4 4 4 2 3 3 4 5
CLOUDS B2 B2 B2 B2 B1 SC SC FW SC SC B1 FW CL CL CL CL FW FW FW
CLOUDS(%) 78 81 79 78 58 47 42 25 35 47 60 18 5 4 4 4 7 8 12
VSBY 8 7 5 10 10 10 10 9 8 2 10 10 10 10 10 10 10 10 10
POP 12HR 10 0 5 5 0
SPRINKLES
Obvis PF
MIX HGT <1 <1 <1 1 3 4 <1 <1 <1 <1 <1 <1 3 4 <1
T WIND DIR NE N NE NE SE S SE SE S N N W W W SW
T WIND SPD 2 1 1 4 3 5 5 3 6 1 1 5 9 4 2
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 8 12 29 3 2 3 1 1 7 33 23 1
MAX LVORI 6 8 8 4 2 2 3 5 5 7 8 3 1 2 3
STABILITY F F C C C B F G G F C B B B G
CEILING 3500 400 None None None None None None
STA PRES 29.34 29.44 29.43 29.43 29.39 29.36 29.30
Date 03/01Mon 03/02/26Tue 03/03/26Wed 03/04/26Thu 03/05/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MAX/MIN TEMP 63 32 35 29 39 35 56 42 62
TEMP 63 52 42 32 34 33 31 29 37 38 36 36 52 51 47 43 58 58
DEWPT 39 30 24 23 24 23 22 22 27 29 32 34 42 41 39 40 47 47
RH 41 43 48 69 66 66 69 75 67 70 85 92 69 68 74 89 67 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW B1 B2 B2 B2 OV B2 B2 B2 B2 OV OV B1 B1 B2 B2 OV OV
POP 12HR 0 10 40 30 30 40 30 10 20
FRZG RAIN C C C
RAIN C C C C C C S S S
SNOW C C C C
$$
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