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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
831 PM EDT Tue May 26 2026
VAZ046-270800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
831 PM EDT Tue May 26 2026
Date 05/26/26 Wed 05/27/26 Thu 05/28/26 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 66 82 63 81 56
TEMP 70 69 68 68 77 82 80 74 69 66 64 66 76 81 80 73 66 61 57 60
DEWPT 70 69 68 68 71 71 70 70 68 65 63 64 66 64 64 64 60 57 54 54
MIN/MAX RH 100 69 97 56 90
RH 100100100100 82 69 72 87 97 97 97 93 71 56 58 73 81 87 90 81
WIND DIR S SW SW SW SW SW W W W W NW NW N N NE NE NE NE NE NE
WIND SPD 3 4 6 6 8 8 8 4 4 4 4 3 5 5 4 4 4 3 4 4
CLOUDS OV B2 B2 OV B2 B1 B2 B1 SC SC SC SC SC B1 B1 SC SC SC FW FW
CLOUDS(%) 90 87 87 89 72 51 71 61 48 40 44 44 33 52 52 41 40 27 20 15
VSBY 6 5 6 7 10 10 10 10 10 6 4 10 10 10 10 10 10 10 6 10
POP 12HR 80 70 40 30 0
RAIN SHWRS SC IS SC SC SC IS IS IS IS SC SC
TSTMS IS SC SC SC SC SC
Obvis PF
MIX HGT <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 3 5 3 <1
T WIND DIR NE E SW SW W W W W N NE NE NE N N NW N
T WIND SPD 2 1 2 3 16 20 18 12 2 1 1 1 9 9 9 11
DISPERSION VP VP PR VP VP VP VP VP VP VP VP
ADI 1 1 2 3 41 70 43 8 2 1 1 1 39 39 30 8
MAX LVORI 10 10 10 9 3 1 3 5 8 9 9 7 3 1 1 3
STABILITY F E E C B C C E E F E A A C C E
CEILING 2800 4900 7000 3900 None None None None None
STA PRES 29.32 29.30 29.29 29.19 29.21 29.24 29.27 29.23
Date 05/29Sat 05/30/26Sun 05/31/26Mon 06/01/26Tue 06/02/26
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 78 57 79 54 74 53 75 53 73
TEMP 76 73 62 61 77 72 61 56 72 69 58 58 73 69 58 57 71 67
DEWPT 57 62 57 57 60 60 55 52 55 58 54 54 56 58 53 53 54 56
RH 52 68 84 87 56 66 81 86 55 68 86 86 55 68 83 86 55 68
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC SC B1 B1 B1 FW FW FW SC SC SC SC SC SC SC SC
POP 12HR 0 0 5 5 5 20 20 20 20
RAIN SHWRS IS IS IS IS IS
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