National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 PM EDT Mon May 25 2026

VAZ046-260800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
1001 PM EDT Mon May 25 2026

Date           05/25/26      Tue 05/26/26            Wed 05/27/26            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                 63          79          65          83          63
TEMP                68 67 65 66 72 77 77 73 70 69 67 68 77 81 79 74 70 67 64 67
DEWPT               67 66 64 65 70 72 72 71 68 67 66 67 71 72 71 71 69 66 63 65
MIN/MAX RH                   97          83          97          73          97
RH                  97 97 97 97 93 85 85 93 93 93 97 97 82 74 77 90 97 97 97 93
WIND DIR             E SE SE  S  W SW  S SE SW SW SW SW SW  W  W  W  W  W NW NW
WIND SPD             2  1  1  2  3  3  3  2  2  3  5  6  8  8  6  4  4  4  4  3
CLOUDS              OV OV OV OV B1 B2 B2 B1 OV B2 B2 B1 B1 OV OV B2 B1 B1 SC B1
CLOUDS(%)           92 94 91 88 63 74 75 66 93 84 85 64 55 92 92 71 60 60 50 51
VSBY                 6  3  2  2  6  9 10 10  6  7  7  7  7  6  6  7            
POP 12HR                     80          80          70          90          30
RAIN SHWRS          SC NM SC NM SC SC NM NM IS       IS IS  O  O SC SC IS IS SC
TSTMS               IS    IS    IS SC SC SC IS          IS SC SC IS            
Obvis                   F PF PF                                                
MIX HGT             <1 <1 <1 <1  1  2  2 <1 <1 <1 <1 <1  3  3  2 <1            
T WIND DIR          SW SW SW SW SW SW SW SW  S  S SW SW  W  W  W NW            
T WIND SPD           6  8  6  3  5 11 12 10  2  2  5 14 23 18 17 12            
DISPERSION          VP VP VP             VP VP VP PR             VP VP VP VP   
ADI                  3  4  3  4  9 35 36  5  1  1  4 16 81 64 41  8            
MAX LVORI            9  9  9  9  8  4  4  9 10 10  9  5  4  3  3  5            
STABILITY            F  F  F  B  B  B  B  F  F  F  E  B  B  C  C  E            
CEILING                    3000   400  1900  3300  6800  8800  4200  4200      
STA PRES                  29.36 29.38 29.33 29.31 29.28 29.27 29.20            


Date           05/28Fri 05/29/26Sat 05/30/26Sun 05/31/26Mon 06/01/26
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       83      57      78      55      73      53      71      52      75
TEMP          81 75 62 60 75 72 61 59 71 68 59 56 69 67 56 56 72 68
DEWPT         65 65 58 56 58 61 55 54 57 58 54 53 56 57 53 52 54 56
RH            58 71 87 87 55 68 81 83 61 70 83 90 63 70 90 86 53 65
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 SC SC FW SC SC B1 B1 B1 B1 B1 SC SC SC FW FW FW
POP 12HR           30       0       5      10      20      20      20      10      10
RAIN SHWRS    SC SC                   IS IS IS IS IS               
TSTMS            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