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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Mon May 25 2026
NCZ005-252000-
RAWS 310540
36.38N 79.70W Elev. 858 ft
801 AM EDT Mon May 25 2026
Date Mon 05/25/26 Tue 05/26/26 Wed 05/27/26
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 67 81 65 82
TEMP 71 77 78 74 69 69 68 69 73 78 78 74 69 68 66 68 75 81 79 74
DEWPT 69 69 70 70 68 68 67 68 72 72 73 72 69 68 66 68 72 71 72 71
MAX/MIN RH 74 100 79 100 74
RH 93 76 76 87 97 97 97 97 97 82 85 93100100100100 90 72 79 90
WIND DIR SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW W W W
WIND SPD 6 8 6 4 3 3 4 3 5 5 4 1 2 3 4 5 8 8 6 3
CLOUDS B2 B2 OV OV OV OV OV B2 B2 OV OV OV OV B2 B2 B2 B2 OV OV B2
CLOUDS(%) 82 75 98 96100 91 96 81 73100100 88 88 74 87 83 76100100 75
VSBY 6 6 6 6 6 6 6 7 7 6 6 6 6 10 10 7 7 6 6 7
POP 12HR 80 90 80 70 80
RAIN SHWRS SC SC O NM O NM SC SC SC O O NM NM IS IS O O IS
TSTMS IS SC SC IS IS IS IS SC SC SC IS SC SC IS
MIX HGT 2 3 3 <1 <1 <1 <1 <1 2 4 3 <1 <1 <1 <1 1 2 3 2 <1
T WIND DIR SW SW SW SW S SW SW SW SW SW SW S SW SW SW SW W W W W
T WIND SPD 20 20 18 10 5 10 5 11 14 12 8 6 2 3 5 11 19 18 17 6
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 47 67 54 7 5 5 4 13 40 33 19 3 1 2 4 19 47 47 37 3
MAX LVORI 4 3 3 5 7 9 9 5 4 3 4 6 10 10 9 5 4 3 3 6
STABILITY C C C E D F E B C D D F F F E C B D D F
CEILING 900 2400 2700 1800 900 2700 2700 2700 13700 5400
STA PRES 29.34 29.30 29.33 29.35 29.37 29.31 29.31 29.29 29.27 29.20
Date Thu 05/28/26Fri 05/29/26Sat 05/30/26Sun 05/31/26
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 64 84 60 78 58 74 56 70
TEMP 67 68 81 77 64 63 76 73 63 61 71 69 61 59 68 66
DEWPT 67 68 66 66 61 61 62 64 60 59 61 61 58 58 59 59
RH 100100 60 69 90 93 62 73 90 93 71 76 90 96 73 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC SC SC SC SC SC B1 B1 B1 B1 B2 B1 B2 B1
POP 12HR 20 20 5 20 30 50 40 50
RAIN SHWRS IS IS IS SC SC SC SC SC SC SC SC
TSTMS IS IS 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