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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EST Mon Mar 2 2026
VAZ046-030900-
RAWS 441101
37.39N 78.80W Elev. 804 ft
231 AM EST Mon Mar 2 2026
Date 03/01/26 Mon 03/02/26 Tue 03/03/26 Wed
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 33 38 35 53 47
TEMP 39 35 37 38 37 36 36 36 36 37 40 48 52 51 50 51 50 50
DEWPT 25 23 23 25 28 29 29 31 32 35 37 41 44 44 46 47 47 47
MIN/MAX RH 63 55 98 74 92
RH 57 61 56 59 70 75 75 82 85 92 89 77 74 77 86 86 89 89
WIND DIR NE NE NE NE NE E NE NE NE NE SW S S S SW SW SW SW
WIND SPD 6 8 8 6 5 4 3 2 2 2 2 5 5 4 5 5 5 5
WIND GUST 18 16 16
CLOUDS B1 B2 OV OV OV OV OV OV OV OV OV OV B2 B2 B2 B1 B1 B1
CLOUDS(%) 63 80 90 92 94 94 95 96 97 97 92 88 81 80 81 63 63 64
VSBY 10 10 10 6 4 4 3 4 5 4 3 8 10 5 3 7 10 10
POP 12HR 5 80 80 20 20
RAIN C S D L D L C S S S S S
SNOW C D D
MIX HGT <1 1 2 2 2 1 1 <1 <1 <1 <1 1 2 <1 <1 <1 <1 <1
T WIND DIR E NE E NE E E NE NE N N SW SW S S SW SW SW SW
T WIND SPD 12 13 13 10 13 9 5 5 4 2 2 4 8 6 8 6 5 5
DISPERSION PR VP VP VP VP VP PR PR PR
ADI 8 19 26 20 25 6 3 3 2 2 2 7 17 5 5 5 4 6
MAX LVORI 2 2 2 2 3 4 4 5 5 7 7 4 3 4 5 5 6 5
STABILITY E D D D D E F F F C C D D E E E E D
CEILING 3900 1300 800 700 700 1000 600 600
STA PRES 29.81 29.79 29.80 29.74 29.72 29.62 29.60 29.57
Date 03/04Thu 03/05/26Fri 03/06/26Sat 03/07/26Sun 03/08/26
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 72 54 77 59 79 60 79 62 75
TEMP 69 66 58 55 74 70 64 60 77 72 64 60 77 73 67 63 74 71
DEWPT 53 52 51 52 56 54 55 54 58 56 56 56 58 56 57 57 58 56
RH 57 61 77 90 53 57 73 81 52 57 75 87 52 55 70 81 57 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 B2 B2 B2 B2 SC SC SC SC SC SC SC SC B1 B1
POP 12HR 20 5 5 10 20 5 20 20 50
RAIN S S S S S 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