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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EDT Wed May 27 2026
VAZ024-280800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
431 PM EDT Wed May 27 2026
Date 05/27/26 Thu 05/28/26 Fri 05/29/26 Sat
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 62 86 52 81 54
TEMP 82 76 70 67 64 65 77 83 83 74 64 58 54 57 70 78 80 74 64 59 55 58
DEWPT 70 68 66 64 62 63 64 62 60 59 55 52 51 49 53 54 55 58 54 52 50 52
MIN/MAX RH 97 45 90 41 84
RH 67 76 87 90 93 93 64 49 46 59 73 80 90 75 55 43 42 57 70 78 83 80
WIND DIR W W NW W NW NW N NW N N N N N N N SW SW S W N NW NW
WIND SPD 8 4 4 3 2 3 5 6 8 3 2 1 1 0 0 2 2 2 1 0 1 1
WIND GUST 13
CLOUDS B1 B1 B1 SC SC SC FW SC FW FW SC CL FW SC FW FW FW SC B1 SC B1 SC
CLOUDS(%) 66 51 55 49 33 28 11 36 25 18 29 3 20 32 17 17 22 36 52 43 53 48
VSBY 10 10 7 7 6 10 10 10 10 10 8 8 5 8 10 10 10 10
POP 12HR 60 10 0 0 0
RAIN SHWRS SC SC SC
TSTMS SC SC
MIX HGT 2 <1 <1 <1 <1 <1 4 6 5 <1 <1 <1 <1 1 3 4 4 <1
T WIND DIR W W W W NW N N NW NW N N N N E SW SW SW S
T WIND SPD 18 9 8 4 4 9 11 11 12 9 4 3 3 4 4 6 8 10
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 45 6 5 2 2 11 53 72 72 4 2 2 2 6 19 36 40 5
MAX LVORI 1 4 5 6 6 5 1 1 1 3 3 5 7 4 2 1 1 3
STABILITY C E E F G A A B B G G G G A A A A G
CEILING None None None None None None None None None
STA PRES 28.43 28.45 28.49 28.48 28.54 28.58 28.57 28.43
Date 05/30Sun 05/31/26Mon 06/01/26Tue 06/02/26Wed 06/03/26
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 52 76 53 79 54 76 52 76
TEMP 80 73 58 55 74 70 58 57 76 72 59 57 74 69 57 56 74 69
DEWPT 53 58 50 48 52 56 52 53 55 57 52 52 53 56 52 52 53 56
RH 39 59 75 77 46 61 80 86 48 59 78 83 48 63 83 86 48 63
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC FW SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC
POP 12HR 0 5 5 10 20 20 30 30 30
RAIN SHWRS IS IS IS SC SC SC SC IS
TSTMS 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