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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EST Tue Feb 24 2026
VAZ046-250900-
RAWS 441101
37.39N 78.80W Elev. 804 ft
401 PM EST Tue Feb 24 2026
Date 02/24/26 Wed 02/25/26 Thu 02/26/26 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
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 36 56 44 53 41
TEMP 38 36 37 38 39 46 53 55 52 49 47 46 45 48 51 52 48 46 45 44 42
DEWPT 15 17 18 21 22 27 31 34 35 36 37 39 40 41 43 43 42 41 41 41 39
MIN/MAX RH 52 42 83 73 89
RH 38 45 46 50 50 47 43 45 52 61 68 76 82 77 74 71 80 83 86 89 89
WIND DIR S SW SW SW SW SW SW SW SW SW SW SW SW SW SE SE NE NE NE NE NE
WIND SPD 5 10 13 13 13 13 13 12 8 6 5 4 3 4 5 5 4 4 4 4 5
WIND GUST 23 27 28 27 28 28 25 19 18 16
CLOUDS B2 B2 B2 OV B2 B2 B2 SC SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
CLOUDS(%) 75 77 85 90 79 82 76 43 32 54 66 74 76 79 79 77 74 83 83 84 84
VSBY 10 10 10 10 10 10 10 10 10 10 7 7 6 6 3 3 6 6 7 7
POP 12HR 10 10 40 70 40
RAIN C C L L C C C C C S
MIX HGT <1 <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 1 2 3 <1
T WIND DIR S S SW SW SW SW SW W SW SW W W SW W SW SW S
T WIND SPD 6 10 16 20 19 24 24 25 14 10 10 6 3 6 6 9 3
DISPERSION PR FR FR FR PR PR PR VP VP VP VP VP
ADI 5 9 14 19 21 48 67 95 10 7 7 5 3 13 18 26 2
MAX LVORI 2 2 2 2 2 1 1 1 2 3 3 4 5 4 3 3 4
STABILITY E D D D D D D C E E E E C C C C E
CEILING 12200 9200 3600 None None 3000 8400 7600 35000
STA PRES 29.21 29.10 29.08 29.07 29.17 29.26 29.34 29.31
Date 02/27Sat 02/28/26Sun 03/01/26Mon 03/02/26Tue 03/03/26
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 53 38 63 41 64 35 45 34 50
TEMP 50 47 41 40 60 54 46 43 62 52 41 36 41 41 37 36 46 45
DEWPT 40 38 35 36 41 39 37 36 40 34 28 25 24 25 26 28 31 33
RH 68 71 79 85 49 57 71 76 44 50 59 64 50 52 64 72 55 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 FW SC SC CL CL FW FW SC B1 B1 B1 B1 B1 B2 B2 B1
POP 12HR 20 10 5 0 5 20 40 30 40
RAIN S S C S C C C
SNOW C S S
$$
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