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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 PM EDT Tue Mar 31 2026
VAZ018-010800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
802 PM EDT Tue Mar 31 2026
Date 03/31/26 Wed 04/01/26 Thu 04/02/26 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
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 60 80 58 81 58
TEMP 65 62 61 61 73 78 78 70 65 62 60 59 72 79 81 73 66 62 59 59
DEWPT 52 53 53 55 58 58 58 56 56 56 56 57 60 59 57 54 52 51 52 55
MIN/MAX RH 79 49 92 44 85
RH 63 72 75 81 59 50 50 61 73 81 87 93 66 50 44 51 61 67 78 87
WIND DIR SW W W W W SW SW W SW SW SW SW S S S S S S S S
WIND SPD 5 5 4 4 6 5 4 2 2 2 1 1 3 6 8 5 4 3 3 3
WIND GUST 21 19 19 20 21 19 17 14 20 23 21 18 17 16 16
CLOUDS SC SC B1 B1 SC B2 B1 B1 B1 SC SC SC SC B1 B1 FW FW FW SC SC
CLOUDS(%) 31 37 52 68 49 79 59 56 53 35 26 35 30 58 58 10 6 14 37 44
VSBY 10 10 10 10 10 6 8 8 8 9 10 7 7 7 7 10 10 10 10
POP 12HR 5 70 30 40 5
RAIN SHWRS IS NM SC SC SC IS IS SC SC IS
TSTMS SC SC SC IS IS
MIX HGT <1 <1 <1 <1 4 4 3 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR SW SW SW SW W W W SE S SW W W SW S S S
T WIND SPD 8 8 6 6 21 12 9 2 4 2 2 1 4 12 16 14
DISPERSION PR PR VP VP VP VP VP PR VP VP VP
ADI 4 4 5 7 97 37 23 1 2 1 1 1 15 39 48 7
MAX LVORI 3 3 4 4 1 1 2 3 3 4 5 7 3 1 1 2
STABILITY F F E B B D D F F G G A B D D F
CEILING None None None 3700 None None None None None
STA PRES 27.87 27.88 27.92 27.91 27.94 27.97 28.05 28.01
Date 04/03Sat 04/04/26Sun 04/05/26Mon 04/06/26Tue 04/07/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 79 59 81 56 67 38 61 37 66
TEMP 77 71 62 61 79 72 63 59 65 57 45 39 58 52 42 39 62 55
DEWPT 56 54 54 55 56 54 53 54 50 41 33 29 30 29 29 31 34 34
RH 48 55 75 81 45 53 70 83 58 55 62 67 34 41 60 73 35 45
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 SC SC B1 B1 B1 B2 B2 B1 B1 SC FW FW FW FW SC
POP 12HR 40 20 50 50 70 20 0 5 10
RAIN SHWRS IS SC IS IS SC SC SC NM NM IS
TSTMS SC 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