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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 AM EDT Sun Jun 28 2026
NCZ005-282000-
RAWS 310540
36.38N 79.70W Elev. 858 ft
401 AM EDT Sun Jun 28 2026
Date Sun 06/28/26 Mon 06/29/26 Tue 06/30/26
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 83 67 87 67 90
TEMP 70 73 78 78 79 79 72 70 69 72 79 84 86 83 74 71 68 72 81 87 89 85
DEWPT 68 70 72 73 73 72 71 70 69 70 72 71 70 71 69 68 67 68 68 68 67 68
MAX/MIN RH 79 100 60 96 47
RH 93 90 82 85 82 79 97100100 93 79 65 59 67 84 90 97 87 65 53 48 57
WIND DIR W W W W W N N N N NE NE NE NE E E E E E E E E SE
WIND SPD 2 2 4 5 4 1 1 2 3 4 5 5 5 2 2 1 1 1 2 3 3 2
CLOUDS B1 B2 B2 B2 B2 SC FW SC SC B1 B1 B1 SC SC FW SC SC SC FW FW FW FW
CLOUDS(%) 69 77 77 83 71 37 24 29 30 66 62 53 38 27 18 30 35 33 25 19 11 7
VSBY 8 10 9 8 10 10 10 9 6 7 10 10 10 10 10 10 2 10 10 10 10 10
POP 12HR 60 10 5 0 0
RAIN SHWRS IS SC NM SC
TSTMS IS SC SC
Obvis PF
MIX HGT <1 <1 2 3 3 <1 <1 <1 <1 1 3 5 5 1 <1 <1 <1 <1 3 5 6 <1
T WIND DIR SW W W W W W W NE NE N NE NE NE E E E SE E N N E S
T WIND SPD 3 10 12 12 13 13 2 8 6 8 9 5 8 6 4 9 5 2 3 3 2 4
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 2 11 31 42 41 6 1 4 3 12 32 24 51 3 2 4 3 3 13 23 16 2
MAX LVORI 8 5 3 4 3 4 8 9 9 6 3 3 1 3 5 6 8 6 3 2 2 3
STABILITY F B C C C G G G G C C C A G G G G A A A A G
CEILING 4300 4800 None None None None None None None None
STA PRES 29.25 29.18 29.21 29.26 29.32 29.30 29.34 29.37 29.38 29.31
Date Wed 07/01/26Thu 07/02/26Fri 07/03/26Sat 07/04/26
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 68 97 72 101 74 100 75 101
TEMP 72 74 94 92 75 76 99 95 77 78100 93 77 79100 91
DEWPT 65 67 68 67 65 66 66 65 65 67 64 64 65 68 64 65
RH 79 79 43 44 71 71 34 37 67 69 31 38 67 69 31 42
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW FW FW FW SC FW SC
POP 12HR 0 0 5 0 5 5 10 20
RAIN SHWRS 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