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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
402 AM EDT Mon Mar 30 2026
VAZ046-302000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
402 AM EDT Mon Mar 30 2026
Date Mon 03/30/26 Tue 03/31/26 Wed 04/01/26
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 71 56 80 62 84
TEMP 47 50 61 69 71 67 63 60 58 58 71 78 80 75 70 68 65 63 76 82 83 77
DEWPT 39 42 47 48 49 49 49 49 51 52 55 56 56 55 56 56 56 56 59 59 59 58
MAX/MIN RH 45 81 43 79 43
RH 74 74 60 47 46 52 60 67 77 80 57 47 44 50 61 65 73 78 56 46 44 52
WIND DIR SW SW SW SW SW SW SW SW SW SW SW SW SW S SW SW SW SW SW SW SW SW
WIND SPD 9 9 12 12 12 8 10 10 10 10 11 11 13 10 12 12 12 11 10 10 9 5
WIND GUST 20 20 24 24 23 19 20 21 23 21 23 23 25 23 25 25 25 23 21
CLOUDS B1 B2 B1 B1 SC FW FW FW FW FW FW FW FW SC FW FW FW FW SC B2 B2 B2
CLOUDS(%) 66 74 57 57 43 17 6 6 6 8 13 21 23 28 21 21 21 22 30 71 71 72
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 5 10 5 60
RAIN SHWRS NM NM SC
TSTMS SC SC IS
MIX HGT <1 <1 2 5 5 <1 <1 <1 <1 <1 2 5 5 <1 <1 <1 <1 1 3 7 6 <1
T WIND DIR S SW SW SW SW SW SW SW SW SW SW SW SW SW S SW SW SW W W W SW
T WIND SPD 10 12 20 23 23 9 10 9 9 8 19 16 20 10 11 10 9 14 24 17 13 3
DISPERSION PR PR FR FR FR FR FR FR FR PR
ADI 9 14 43 68 95 6 7 6 6 6 55 67 86 7 10 9 8 21 79 59 44 2
MAX LVORI 3 3 1 1 1 2 3 3 4 4 1 1 1 2 2 3 3 3 1 1 1 2
STABILITY D D D D C E E E E C C C C E D D D C C D D E
CEILING 4400 None None None None None None None None 4000
STA PRES 29.62 29.54 29.54 29.52 29.51 29.43 29.42 29.42 29.45 29.43
Date Thu 04/02/26Fri 04/03/26Sat 04/04/26Sun 04/05/26
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 61 82 60 81 63 82 63 78
TEMP 67 61 80 75 66 62 78 75 67 65 81 76 68 64 76 70
DEWPT 59 58 58 55 55 56 58 56 58 59 60 58 59 57 56 52
RH 75 90 47 50 68 81 50 52 73 81 49 54 73 78 50 53
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC B1 SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR 40 30 10 40 20 40 30 50
RAIN SHWRS SC SC IS SC IS IS SC SC SC SC SC
TSTMS IS 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