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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
932 AM EDT Sat Mar 28 2026
VAZ024-282000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
932 AM EDT Sat Mar 28 2026
Date Sat 03/28/26 Sun 03/29/26 Mon 03/30/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 57 31 64 45 74
TEMP 43 51 56 47 40 35 33 33 49 59 63 55 51 49 47 47 61 70 73 66
DEWPT 19 18 16 18 19 19 20 22 25 27 26 25 27 30 33 37 44 47 48 48
MAX/MIN RH 21 64 24 69 40
RH 38 27 20 31 42 52 58 63 39 29 24 31 39 48 58 68 53 44 41 52
WIND DIR N N N N N NE E S S S S S SW SW SW SW SW SW SW S
WIND SPD 8 6 5 2 1 1 1 1 5 8 8 4 3 3 2 2 4 6 5 3
WIND GUST 16 19 20 17 14 17 16
CLOUDS FW CL CL CL FW FW FW SC FW SC SC SC SC SC SC B1 SC B1 B1 B1
CLOUDS(%) 6 4 4 4 6 8 24 29 22 30 37 44 36 48 36 54 38 59 63 55
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 10
MIX HGT 5 6 6 <1 <1 <1 <1 <1 3 4 5 2 1 <1 <1 <1 3 6 5 <1
T WIND DIR N NW NW NW NW N N SW SW S S S S SW SW SW SW SW SW S
T WIND SPD 18 14 11 3 2 2 1 2 17 17 20 9 9 6 5 4 11 12 11 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 109 97 78 2 1 1 1 2 68 90116 6 4 3 3 4 45 42 35 3
MAX LVORI 1 1 1 2 2 2 3 3 1 1 1 2 2 2 3 3 1 1 1 2
STABILITY B B B G G G G A B B B E G F G C B D D F
CEILING None None None None None None None None 3400
STA PRES 28.91 28.95 28.96 28.95 28.83 28.80 28.76 28.76 28.70
Date Tue 03/31/26Wed 04/01/26Thu 04/02/26Fri 04/03/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 52 83 58 82 53 63 47 60
TEMP 58 55 80 76 64 61 79 74 62 55 61 57 50 48 57 57
DEWPT 48 48 53 52 53 54 57 56 54 52 51 46 45 45 49 47
RH 69 77 39 43 67 78 47 53 75 90 70 67 83 89 75 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW SC FW SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR 5 5 5 70 60 60 60 70
RAIN SHWRS SC NM NM SC NM NM NM NM NM NM
TSTMS IS SC
$$
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