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St. Francis National Forest Fire Weather Point Forecast Matrix


ARZ049-211000-
MARIANNA NFDRS SITE-LEE AR
34.76N  90.72W ELEV. 253 FT
231 PM CDT SUN APR 20 2014

DATE           04/20/14      MON 04/21/14            TUE 04/22/14            WED
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CDT 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                      57          77          59          77          50
TEMP          79 75 67 62 59 57 68 75 77 74 67 63 60 59 68 75 77 72 62 56 52 51
DEWPT         52 54 53 52 53 53 54 56 56 56 57 57 56 56 57 55 53 52 51 50 49 48
MAX/MIN RH                   86          47          89          43          93
RH            38 47 62 70 82 85 63 51 47 54 71 81 85 89 68 50 43 49 68 81 90 91
WIND DIR       S  S SE  S SE  S  S  S SW SW  S SW  W NW  N  N  N  N NE NE NE NE
WIND SPD       4  5  3  3  4  5  9 11 10  6  6  5  4  4  8  9 10  5  5  5  5  5
CLOUDS        SC SC SC B1 B1 B2 B2 B2 B2 OV OV OV OV OV OV SC SC FW FW CL CL FW
CLOUDS(%)     33 35 35 54 54 75 75 83 83100100100100 91 91 43 43 16 16  0  0  8
POP 12HR                     10          50          70          20           0
QPF 12HR                      0        0.04        0.14        0.02           0
RAIN SHWRS                   SC SC SC SC NM NM NM NM IS IS
TSTMS                        SC SC SC SC NM NM NM NM IS IS
MIXHGT M AGL          878     0  1713  1680   228    20  1438  1397   819     0
MIXHGT FT AGL        2880     0  5619  5512   749    67  4719  4584  2687     0
MIXHGT M MSL          949    66  1791  1758   306    98  1516  1475   886    56
MIXHGT FT MSL        3113   217  5875  5768  1005   323  4975  4840  2908   184
TRANSWIND DIR           S     S     S    SW     S     E     N     N    NE    NE
TWIND SPD M/S           3     3     7     5     2     1     5     7     3     3
TWIND SPD MPH           8     6    17    11     4     3    11    17     8     6
VENT INDEX                 4275       10746         966        9096        5064
CATEGORY DAY                  3           4           1           4           3
500M MIXHGT T          77    75    74    72    73    73    70    72    71    66
500M TWND DIR           S     S     S    SW    SW     W     N     N    NE     E
500M TWND M/S           8    10     9     4     5     4     5     7     8     8
500M TWND MPH          18    23    20    10    12     9    12    16    18    19
DISPERSION              5     7    46    45     4     4    34    49     3     6
LAL                     1     3     3     4     4     4     2     1     1     1
LASI                    4     4     3     3     3     4     3     4     5     5
STABILITY               F     E     C     C     D     D     C     C     F     E
STAG INDEX                    0           0           1           0           2


DATE            04/23  THU 04/24/14    FRI 04/25/14    SAT 04/26/14    SUN 04/27/14
UTC 6HRLY      18  00  06  12  18  00  06  12  18  00  06  12  18  00  06  12  18  00
CDT 6HRLY      13  19  01  07  13  19  01  07  13  19  01  07  13  19  01  07  13  19

MAX/MIN            77      58      80      63      81      61      79      61      77
TEMP           74  74  62  58  77  77  67  63  78  77  65  61  76  76  65  61  75  73
DEWPT          49  49  51  53  56  58  59  60  60  60  59  58  56  55  52  50  50  51
MIN/MAX RH         37      84      45      90      50      90      45      67      39
RH             41  42  68  84  47  52  77  89  53  56  81  89  50  48  63  65  41  45
WIND DIR            E      SE       S      SW      SW      SE      NE      NE      NE
WIND SPD            4       5       9       5       5       3       6       8       9
BELOW IS A WEATHER ELEMENT KEY FOR THIS PRODUCT

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 HUMIDITY
RH (%)..............................RELATIVE HUMIDITY
WIND DIR (8 POINT COMPASS)..........20 FT. WIND DIRECTION
WIND SPD (MPH)......................20 FT. WIND SPEED
WIND CHILL (F)......................WIND CHILL TEMPERATURE
HEAT INDEX (F)......................HEAT INDEX
CLOUDS (CAT)........................CLOUD COVER CATEGORY
     EXAMPLE: CL = CLEAR; FW = FEW; SC = SCATTERED;
              B1 = MOSTLY CLOUDY; B2 = CONSIDERABLE CLOUDS; OV = OVERCAST
CLOUDS (%)..........................CLOUD COVER AS A PERCENTAGE
POP 12HR (%)........................PROBABILITY FOR ACCUMULATING PRECIPITATION
QPF 12HR (IN).......................LIQUID EQUIVALENT PRECIPITATION AMOUNT
WEATHER...
     TYPE...
       RAIN...........RAIN
       RAIN SHWRS.....RAIN SHOWERS
       TSTMS..........THUNDERSTORMS
       DRIZZLE........DRIZZLE
       SNOW...........SNOW
       SNOWSHWRS......SNOW SHOWERS
       SLEET..........SLEET
       FLURRIES.......FLURRIES
       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
OBVIS...............................OBSTRUCTION TO VISIBILITY
     TYPE...
       F..............FOG
       PF.............PATCHY FOG
       +PF............PATCHY DENSE FOG
       F+.............DENSE FOG
       H..............HAZE
       BS.............BLOWING SNOW
       K..............SMOKE
       BD.............BLOWING DUST
MIXING HGT M (AGL)..................MIXING HEIGHT IN METERS
MIXING HGT FT (AGL).................MIXING HEIGHT IN FEET
TRANSWIND DIR (8 POINT COMPASS).....TRANSPORT WIND DIRECTION
TWIND SPD MS (M/S)..................TRANSPORT WIND SPEED IN METERS PER SECOND
TWIND SPD MPH (MPH).................TRANSPORT WIND SPEED IN MILES PER HOUR
VENT INDEX (M2/S)...................VENT INDEX IN METERS SQUARED PER SECOND
CATEGORY DAY........................CATEGORY DAY BASED ON VENT INDEX
     EXAMPLE: 1 = <2000; 2 = >=2000 AND <4000; 3 = >=4000 AND <8000;
              4 = >=8000 AND <16000; 5 = >=16000
500M MIXHGT T (F)...................SURFACE TEMPERATURE NEEDED TO CREATE MIXING
                                    UP TO 500 METERS ABOVE THE GROUND
500M TWND DIR (8 POINT COMPASS).....TRANSPORT WIND DIRECTION AT 500 METERS AGL
500M TWND M/S.......................TRANSPORT WIND AT 500 METERS AGL IN M/S
500M TWND MPH.......................TRANSPORT WIND AT 500 METERS AGL IN MPH
LASI (SAME AS HAINES INDEX).........LOWER ATMOSPHERIC SEVERITY INDEX
                                    MEASURES FIRE GROWTH POTENTIAL
     EXAMPLE: 1-3 = VERY LOW; 4 = LOW; 5 = MODERATE; 6 = HIGH
STABILITY...........................STABILITY CLASS
     EXAMPLE: A = VERY UNSTABLE; B = MODERATELY UNSTABLE; C = SLIGHTLY UNSTABLE
              D = NEUTRAL; E = SLIGHTLY STABLE; F = MODERATELY STABLE
              G = VERY STABLE
STAG INDEX..........................STAGNATION INDEX
     EXAMPLE: 0 = WINDS >= 10 MPH; 1 = WINDS <= 10 MPH WITH RAIN
              2 = DRY WITH DECENT WINDS
              3 = DRY WITH LIGHT WINDS AND STAGNATE CONDITIONS
WATCH/WARNING/ADVISORY...
     EXAMPLE: W = WARNING; Y = ADVISORY; A = WATCH
     IN EFFECT FOR THE INDICATED HOUR


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