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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Sun May 24 2026
VAZ018-250800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
731 PM EDT Sun May 24 2026
Date 05/24/26 Mon 05/25/26 Tue 05/26/26 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 62 76 64 79 66
TEMP 65 65 64 63 65 70 74 74 70 67 66 65 67 73 78 76 71 68 67 66 68
DEWPT 61 61 61 61 61 67 68 68 65 63 61 61 62 68 70 70 67 64 62 62 63
MIN/MAX RH 94 78 90 77 88
RH 87 87 90 93 87 90 82 82 84 87 84 87 84 84 76 82 87 87 84 87 84
WIND DIR S S N N N N W N N N N N N S SW N N N N N W
WIND SPD 2 1 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 0 1
CLOUDS OV OV OV B2 B2 OV OV OV B2 B2 B2 B2 OV OV OV OV B2 B2 B2 B2 B2
CLOUDS(%) 97 92 95 81 86 88 94 96 84 83 81 81 89 89 98 98 71 75 71 74 85
VSBY 9 2 1 1 2 5 5 7 7 5 4 4 2 4 6 7 8
POP 12HR 70 90 70 100 50
RAIN SHWRS SC NM SC SC NM NM O O SC NM SC SC O O O O SC SC SC SC O
TSTMS IS IS SC SC IS IS SC SC IS
MIX HGT <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 2 2 2 <1
T WIND DIR SE SE S E S SW W W W W W NW N SW S S S
T WIND SPD 6 3 2 1 2 8 9 6 3 2 2 2 0 4 4 6 5
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 3 2 1 1 2 17 31 15 2 1 1 1 0 9 11 20 3
MAX LVORI 6 6 7 8 6 4 4 4 5 6 6 6 6 4 4 3 6
STABILITY F F F F B B B B F F F F B B B B F
CEILING 100 100 100 2100 1900 1300 600 1100 800
STA PRES 27.90 27.86 27.87 27.86 27.88 27.89 27.90 27.87
Date 05/27Thu 05/28/26Fri 05/29/26Sat 05/30/26Sun 05/31/26
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 81 64 81 59 78 58 74 56 68
TEMP 78 71 65 66 79 73 61 62 75 70 61 60 70 67 59 58 67 63
DEWPT 70 65 61 61 61 61 55 56 57 58 53 53 56 56 52 51 54 53
RH 76 81 87 84 54 66 81 81 54 66 75 78 61 68 78 77 63 70
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 OV B1 B1 SC SC FW SC SC SC SC B1 B1 B1 B1 B1 B1 B1
POP 12HR 90 20 20 5 10 20 40 40 40
RAIN SHWRS O O IS IS IS IS IS SC SC SC SC SC SC
TSTMS IS SC IS IS SC IS SC
$$
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