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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 PM EDT Sat May 30 2026
VAZ046-310800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
901 PM EDT Sat May 30 2026
Date 05/30/26 Sun 05/31/26 Mon 06/01/26 Tue
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 53 76 57 80 55
TEMP 62 57 53 54 67 73 75 71 63 62 60 62 75 79 78 71 64 59 56 59
DEWPT 46 45 45 47 49 51 51 55 52 52 54 57 58 56 53 53 51 52 50 52
MIN/MAX RH 76 43 88 42 83
RH 56 64 74 77 52 46 43 57 67 70 81 84 55 45 42 53 63 78 80 78
WIND DIR NE NE NE E S SW S S S SW SW SW N NE NE NE NE NE NE NE
WIND SPD 8 3 3 3 2 3 5 4 5 5 6 5 5 6 8 5 4 4 5 8
WIND GUST 17
CLOUDS FW FW FW CL FW FW FW SC SC FW SC SC B1 B1 B1 SC SC B1 B1 B1
CLOUDS(%) 11 9 7 5 22 21 25 36 37 23 47 40 52 59 54 49 40 51 53 55
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 5 10 10
RAIN SHWRS SC
MIX HGT <1 <1 <1 1 4 5 5 <1 <1 <1 <1 1 4 6 6 <1
T WIND DIR NE NE N NE SW W SW SW S SW SW W N N NE NE
T WIND SPD 20 11 3 8 1 4 8 11 5 6 5 8 6 5 5 12
DISPERSION PR VP VP VP PR PR PR PR VP VP PR
ADI 9 5 2 12 6 28 53 5 4 3 4 11 32 40 26 8
MAX LVORI 2 3 5 4 2 2 1 3 3 3 5 4 1 1 2 2
STABILITY F F F A A A A F E F E A B B C E
CEILING None None None None None 10300 None None
STA PRES 29.44 29.43 29.32 29.28 29.23 29.23 29.21
Date 06/02Wed 06/03/26Thu 06/04/26Fri 06/05/26Sat 06/06/26
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 74 50 74 51 81 57 87 63 89
TEMP 72 68 55 56 72 69 56 57 79 74 62 63 84 81 68 68 87 82
DEWPT 51 52 49 49 47 49 47 49 50 54 51 54 56 59 57 59 61 63
RH 48 57 80 77 41 49 72 75 36 50 67 72 38 47 68 73 42 53
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC FW FW FW SC FW FW FW FW FW FW SC SC SC SC SC
POP 12HR 40 10 10 5 0 5 5 10 10
RAIN SHWRS SC SC
TSTMS 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