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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
303 PM EST Tue Mar 3 2026
VAZ046-040900-
RAWS 441101
37.39N 78.80W Elev. 804 ft
303 PM EST Tue Mar 3 2026
Date 03/03/26 Wed 03/04/26 Thu 03/05/26 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 47 72 53 77 59
TEMP 48 49 49 48 48 49 57 68 70 63 59 58 55 54 63 73 76 70 66 64 62 60
DEWPT 42 44 46 46 46 46 50 53 54 53 53 52 52 52 56 56 56 54 54 54 55 55
MIN/MAX RH 92 55 93 50 83
RH 80 83 89 93 93 89 77 59 57 70 80 80 90 93 78 55 50 57 65 70 78 84
WIND DIR S S SW SW SW SW SW SW SW SE SE S SW SW SW SW SW S SW SW SW SW
WIND SPD 5 5 6 6 6 5 5 5 4 3 3 3 4 5 6 8 8 5 6 6 6 5
WIND GUST 18 18 17 18 18 17
CLOUDS OV B2 B2 SC B1 B1 SC SC SC B1 B2 B1 B1 B1 B1 B1 SC B1 SC SC SC SC
CLOUDS(%) 89 77 71 47 54 64 50 37 45 57 71 64 68 66 62 57 49 56 36 47 48 44
VSBY 10 9 9 7 8 8 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 30 10 10 10
RAIN S S S S
MIX HGT 3 <1 <1 <1 <1 <1 <1 3 4 <1 <1 <1 <1 <1 1 3 5 <1
T WIND DIR SW S SW SW SW SW W SW S E SE S SW SW SW SW SW S
T WIND SPD 10 10 10 8 12 9 6 3 2 2 2 2 2 5 14 14 13 8
DISPERSION PR PR PR PR VP VP VP VP PR PR PR PR
ADI 23 7 7 5 8 10 7 11 10 1 1 1 2 6 21 36 74 5
MAX LVORI 3 4 5 6 6 5 4 2 2 3 5 5 6 6 3 1 1 3
STABILITY D E E E E D B B B F F F E D D D B E
CEILING 3800 None None None 22400 19500 500 None None
STA PRES 29.58 29.54 29.57 29.53 29.52 29.48 29.5 29.44
Date 03/06Sat 03/07/26Sun 03/08/26Mon 03/09/26Tue 03/10/26
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 81 62 80 62 77 59 75 56 77
TEMP 78 73 65 62 78 75 68 63 75 71 64 59 74 67 61 57 75 71
DEWPT 58 56 56 57 59 57 57 56 55 53 53 53 53 52 52 51 55 54
RH 50 55 73 84 52 54 68 78 50 53 67 80 48 59 72 80 50 55
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW SC FW B1 B1 B2 B1 B1 B1 B1 B1 B1 SC SC SC B1
POP 12HR 10 10 30 40 40 40 40 20 30
RAIN SHWRS SC SC IS IS SC SC SC SC SC IS IS SC
TSTMS IS 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