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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
803 AM EDT Fri May 29 2026
VAZ046-292000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
803 AM EDT Fri May 29 2026
Date Fri 05/29/26 Sat 05/30/26 Sun 05/31/26
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 79 56 78 50 74
TEMP 70 76 79 74 66 62 57 60 74 77 75 67 60 54 50 54 65 72 74 69
DEWPT 52 54 55 59 57 56 52 53 53 53 51 49 47 46 46 48 49 51 51 55
MAX/MIN RH 44 84 42 86 45
RH 53 46 44 59 73 81 83 78 48 43 43 52 62 74 86 80 56 48 44 61
WIND DIR N SW SW S SW W W NW N NE NE NE NE NE NE NE NE S SW S
WIND SPD 2 3 5 4 5 4 3 3 6 8 9 9 6 4 4 3 3 3 3 3
WIND GUST 19 17
CLOUDS CL CL CL FW SC B1 SC SC B1 B2 B2 B1 SC SC FW FW SC SC SC SC
CLOUDS(%) 2 4 3 18 46 59 46 32 64 72 80 63 43 26 19 18 27 31 34 41
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 0
MIX HGT 3 4 4 <1 <1 <1 <1 <1 4 5 4 <1 <1 <1 <1 1 5 5 5 <1
T WIND DIR N W SW SW SW SW W N N NE NE NE NE NE N NE N N N SE
T WIND SPD 2 6 9 5 4 4 3 3 16 13 14 9 20 4 4 17 10 5 3 2
DISPERSION VP PR VP VP PR PR VP VP VP
ADI 10 39 49 3 3 3 2 3 73 59 57 8 14 2 2 29 59 38 23 1
MAX LVORI 2 1 1 3 3 5 5 4 1 1 1 2 2 4 6 3 1 1 2 3
STABILITY A A A F E E F A B C C D E F F A A A A F
CEILING None None None None 35000 4600 None None None None
STA PRES 29.37 29.23 29.17 29.13 29.19 29.23 29.37 29.43 29.45 29.39
Date Mon 06/01/26Tue 06/02/26Wed 06/03/26Thu 06/04/26
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 56 79 55 76 53 76 53 80
TEMP 58 60 77 72 59 59 74 69 57 58 73 69 57 58 77 73
DEWPT 51 56 57 57 53 52 50 53 50 51 50 53 50 52 54 57
RH 77 87 50 59 80 78 43 57 77 77 44 57 77 80 45 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC FW FW FW FW FW FW SC FW FW FW FW
POP 12HR 10 20 5 5 5 5 5 5
RAIN SHWRS 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