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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
225 AM EDT Tue Sep 22 2026

VAZ046-230800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
225 AM EDT Tue Sep 22 2026

Date           09/21/26      Tue 09/22/26            Wed 09/23/26            Thu
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                 64          70          56          61          53
TEMP                      65 66 70 70 67 64 62 61 59 58 59 60 61 59 58 57 55 53
DEWPT                     65 66 69 66 64 61 61 60 59 58 59 60 60 59 58 56 54 52
MIN/MAX RH                  100          87         100          96         100
RH                       100100 97 87 90 90 97 97100100100100 97100100 96 96 96
WIND DIR                  NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE  N
WIND SPD                   4  4  6 10 13 13 12 12 14 14 13 13 13 13 12 12 13 13
WIND GUST                             24 26 24 24 25 25 25 26 25 25 24 24 25   
CLOUDS                    OV B2 OV OV OV OV OV OV OV B2 B2 B2 OV OV B2 B2 B2 B2
CLOUDS(%)                 89 80 89 89 92 89 95 93 95 85 85 85 93 92 81 81 82 74
VSBY                       1  0  2  4  3  3  2  4  5  4  3  6  6  6  6  6  6   
POP 12HR                     90          80          90          70          50
RAIN                                                  L  L  C  C  C  C  C  C  C
RAIN SHWRS                NM NM NM SC NM  O  O  O  O                           
TSTMS                     SC SC SC SC                                          
Obvis                     PFPF+                PF PF PF PF                     
MIX HGT                   <1 <1 <1  1  1 <1 <1  1  1  1  2  2  2  1 <1  2  1  2
T WIND DIR                 E  E  E NE NE  N  N  N  N  N NE NE NE NE  N  N  N  N
T WIND SPD                 6  9  6 12 18 14 14 14 14 18 17 16 16 14 16 16 17 17
DISPERSION                VP             FR FR FR GD             FR FR FR FR   
ADI                        5 10  9 19 29 13 13 13 13 27 30 29 30 13 14 18 19 30
MAX LVORI                  9  7  6  4  4  5  5  5  5  4  4  4  4  5  5  5  5  4
STABILITY                  E  D  D  D  D  D  D  D  D  D  D  D  D  D  D  D  D  D
CEILING                     400   400   500   500   500   600   600   600  3100
STA PRES                  29.33 29.38 29.41 29.47 29.48 29.54 29.56 29.57 29.54


Date           09/24Fri 09/25/26Sat 09/26/26Sun 09/27/26Mon 09/28/26
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       63      49      71      49      73      52      75      52      76
TEMP          62 59 51 51 69 61 52 51 71 62 54 53 72 64 54 54 74 65
DEWPT         56 55 51 48 50 50 45 46 50 51 49 48 53 55 51 51 58 59
RH            81 87100 89 51 67 77 83 47 67 83 83 51 73 90 90 57 81
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 SC FW FW FW FW FW FW FW FW FW FW SC FW FW SC SC
POP 12HR           30       0       0       0       0       0       0       0       0
RAIN           C                                                   

$$


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