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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sun May 3 2026
NCZ006-040800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
801 PM EDT Sun May 3 2026
Date 05/03/26 Mon 05/04/26 Tue 05/05/26 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
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 43 79 54 82 60
TEMP 49 46 43 49 68 76 78 72 63 59 55 57 73 80 81 76 67 63 61 62
DEWPT 33 34 37 42 46 43 44 47 46 47 48 50 53 50 50 50 52 55 55 57
MIN/MAX RH 83 29 79 33 85
RH 54 63 79 77 45 31 30 41 54 64 77 77 49 35 34 40 59 75 81 84
WIND DIR S S S SW SW SW SW S S S SW SW SW SW S S S S S S
WIND SPD 1 2 2 3 5 8 9 4 5 5 5 5 8 10 11 8 10 10 10 10
WIND GUST 16 18 23 24 18 20 21 21 20
CLOUDS FW FW SC FW FW FW SC SC FW SC FW FW FW FW SC B1 B1 B1 B2 OV
CLOUDS(%) 6 12 27 8 18 25 27 33 20 34 22 16 15 25 41 58 57 66 78 91
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 5 0 0 30
RAIN SHWRS SC SC SC
MIX HGT <1 <1 <1 <1 4 6 7 <1 <1 <1 <1 1 4 7 7 <1
T WIND DIR S S S SW W SW SW S S S S SW SW S S S
T WIND SPD 3 5 4 6 18 17 16 8 8 9 8 16 21 21 25 13
DISPERSION VP VP VP VP PR PR PR PR FR FR FR
ADI 2 3 2 7 84120121 4 4 4 4 25106156122 12
MAX LVORI 3 3 4 4 1 1 1 2 2 3 4 3 1 1 1 2
STABILITY G G G A A B B F F F F A B B C D
CEILING None None None None None None None None 4300
STA PRES 29.39 29.40 29.39 29.31 29.32 29.35 29.37 29.28
Date 05/06Thu 05/07/26Fri 05/08/26Sat 05/09/26Sun 05/10/26
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 82 58 73 41 71 49 74 50 78
TEMP 78 75 65 61 68 64 50 50 67 64 53 53 72 67 55 55 75 69
DEWPT 60 60 61 61 60 49 43 42 40 44 44 47 51 52 50 49 50 53
RH 54 60 87100 76 58 77 74 37 48 71 80 48 59 83 80 41 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 OV OV B2 SC FW FW FW FW SC B1 B1 SC FW FW SC
POP 12HR 50 80 80 20 5 20 30 20 10
RAIN SHWRS SC SC NM O O NM IS IS IS SC IS
TSTMS IS SC SC IS 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