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St. Francis National Forest Fire Weather Point Forecast Matrix


ARZ049-231000-
MARIANNA NFDRS SITE-LEE AR
34.76N  90.72W ELEV. 253 FT
320 PM CST MON DEC 22 2014

DATE           12/22/14      TUE 12/23/14            WED 12/24/14            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
CST 3HRLY     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06

MIN/MAX TEMP                 46          55          39          46          33
TEMP             54 51 50 49 48 50 54 53 47 43 42 41 39 41 44 44 39 37 36 36 35
DEWPT            49 49 46 44 42 43 43 42 41 40 39 38 37 38 38 36 35 34 32 31 29
MIN/MAX RH                   93          61          93          73          89
RH               83 93 86 83 80 77 66 66 79 89 89 89 92 89 79 73 85 89 85 82 78
WIND DIR          S  S  W NW  N  N  N  N  N  N  N NW NW  W  W  W  W  W  W SW SW
WIND SPD         10  9  5  4  4  5 10 10 12 13 13 11 10 10 11 13 11 12  9  4  6
CLOUDS           OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B1 SC SC FW
CLOUDS(%)       100100100100100100100100100100100100100100100100 83 68 40 40  7
POP 12HR                     50          60          80          30          10
QPF 12HR                   0.18        0.14        0.18        0.09           0
RAIN SHWRS       SC SC SC SC NM NM NM NM  O  O  O  O SC SC SC SC
OBVIS                  PF PF
T WIND DIR        S  S SW NW  N NE  N  N  N  N  N NW  W NW  W  W  W  W  W SW  S
T WIND SPD       13 12  6  8 11 18 20 23 24 17 19 12 10 14 18 21 18 13  6  4  4
MIXHGT M AGL          219   352   517   674   614   495  1611  1720   391     4
MIXHGT FT AGL         719  1155  1697  2210  2016  1624  5285  5642  1284    14
MIXHGT M MSL          297   430   595   752   693   573  1689  1798   469    78
MIXHGT FT MSL         975  1411  1953  2466  2272  1880  5541  5898  1540   256
TRANSWIND DIR          SW    NW     N     N     N    NW     W     W     W    SW
TWIND SPD M/S           4     4     8    10     8     5     6     9     5     2
TWIND SPD MPH          10     9    18    23    19    12    14    20    12     4
VENT INDEX                 1720        6768        5864       14384        2880
CATEGORY DAY                  1           3           3           4           2
500M MIXHGT T          62    58    53    48    45    45    44    47    44    42
500M TWND DIR          SW    NW    NE     N     N    NW     W     W     W     W
500M TWND M/S          10     6    10    12    11     7     6     8    10     7
500M TWND MPH          23    13    23    27    25    17    14    19    23    16
DISPERSION             11    21    37    35    35    33    49    45    21     5
LAL                     1     1     1     1     1     1     1     1     1     1
LASI                    3     2     2     2     2     2     3     3     3     3
STABILITY               D     D     D     D     D     D     D     D     D     F
STAG INDEX                    3           2           1           1           3


DATE           12/25/14  FRI 12/26/14  SAT 12/27/14  SUN 12/28/14  MON 12/29/14
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6HRLY     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

MAX/MIN TEMP     51      40    57      41    48      32    45      32    48
TEMP          46 44 43   40 52 50 45   42 47 43 38   34 42 39 36   34 43 41
DEWPT         33 34 34   38 45 46 44   39 36 35 30   28 27 29 28   28 33 34
RH            60 68 70   92 77 86 96   89 65 73 73   78 55 67 72   78 67 76
WIND DIR         SW       S     S       W     N       N    NE       E     E
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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