National Weather Service United States Department of Commerce

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 PM EST Mon Jan 12 2026

NCZ003-130900-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
631 PM EST Mon Jan 12 2026

Date           01/12/26      Tue 01/13/26            Wed 01/14/26            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
EST 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07

MIN/MAX TEMP                 33          54          34          53          23
TEMP             38 35 34 34 34 41 52 52 42 38 36 36 36 44 51 51 45 41 36 30 24
DEWPT            23 20 19 17 17 24 27 30 29 28 27 27 28 33 34 36 35 34 28 19 12
MIN/MAX RH                   56          38          74          53          76
RH               54 54 54 49 49 50 38 43 60 67 69 69 72 65 52 56 68 76 72 63 60
WIND DIR          N  W NW NW NW SW  S  S SW SW  W  W  W  W SW  W  W NW NW NW NW
WIND SPD          0  1  1  1  1  1  3  3  1  1  1  1  1  2  3  3  2  3  5  8 10
WIND GUST                                                           14 18 24 25
CLOUDS           CL CL CL FW FW FW FW FW SC FW FW B1 B2 B2 B2 OV OV B2 B1 B1 SC
CLOUDS(%)         5  4  4  6  6 14  6 10 30 11 23 52 73 83 81 88 90 74 65 56 41
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10  9  8 10 10 10
POP 12HR                      0           0           0          20          40
RAIN                                                              S  C  S      
SNOW                                                                       S   
MIX HGT          <1 <1 <1 <1 <1 <1  2  2 <1 <1 <1 <1 <1  1  3  4 <1            
T WIND DIR        W NW NW NW NW SW SW  S SW SW  W  W  W  W  W  W NW            
T WIND SPD        2  2  3  4  3  2 12 10  6  5  3  4  3  4  2 12 11            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP PR PR   
ADI               1  1  2  2  4  3 35 24  3  3  2  2  3  8  7 46  5            
MAX LVORI         3  3  3  2  3  2  1  2  3  3  3  3  3  3  2  1  3            
STABILITY         G  G  G  G  B  B  B  B  G  G  G  F  C  C  C  C  F            
CEILING              None  None  None  None  None  None  7600  4000  3100      
STA PRES            28.30 28.25 28.20 28.05 27.96 27.87 27.81 27.76            


Date           01/15Fri 01/16/26Sat 01/17/26Sun 01/18/26Mon 01/19/26
UTC 6hrly     18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly     13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19

MAX/MIN TEMP       31      14      36      24      42      19      34      17      34
TEMP          29 24 19 16 32 30 27 27 38 33 26 21 31 26 21 19 32 27
DEWPT          9  6  6  6  7 14 16 18 22 21 13 12  9 13  9  7  8 12
RH            42 45 56 64 34 51 63 68 52 61 57 68 39 57 59 59 36 53
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC FW SC SC SC SC SC B1 B1 B1 B1 SC FW FW FW FW
POP 12HR           10       5       5      10      20      10      20       5       5
RAIN SHWRS                            IS                           
SNOWSHWRS                             IS          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