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Poinsett Fire Weather Point Forecast Matrix


ARZ027-251000-
POINSETT NFDRS SITE-POINSETT AR
35.53N  90.69W
313 PM CDT THU JUL 24 2008

DATE                         FRI 07/25/08            SAT 07/26/08            SUN
UTC 3HRLY     20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11
CDT 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                      73          95          77          96          78
TEMP             90 83 77 75 73 81 89 94 93 86 80 79 77 85 93 95 94 87 82 81 78
DEWPT            67 65 68 70 70 72 71 70 70 72 72 72 72 73 71 71 71 71 72 72 72
MAX/MIN RH                   82          45          92          49          91
RH               47 57 74 83 90 75 55 45 47 64 78 79 85 69 50 45 47 59 70 74 82
WIND DIR         SW SE  S  S SW  W SW SW SW SW SW SW SW  W NW NW  W  W  S  S SW
WIND SPD          2  3  3  2  1  5  6  6  8  4  3  2  2  5  8  6  4  3  2  1  2
HEAT INDEX       93 85          85 96100100 92 84       92100104103 94 88 85
CLOUDS           SC FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC SC FW FW FW FW
CLOUDS(%)        50 24 24 24 24 50 50 50 50 35 35 29 29 50 50 50 50 24 24 24 24
POP 12HR                     10          20          10          10          10
QPF 12HR                      0        0.02           0           0           0
RAIN SHWRS       IS             IS IS IS IS
TSTMS            IS             IS IS IS IS
MIXHGT M AGL         1741     0  2089  2488  1730     0   848  1628  1212     0
MIXHGT FT AGL        5712     0  6852  8164  5676     0  2782  5341  3975     0
MIXHGT M MSL         1840    53  2187  2590  1833    64   944  1724  1309    66
MIXHGT FT MSL        6035   174  7175  8496  6013   209  3097  5654  4294   217
TRANSWIND DIR          SE    SE    SW    SW    SW    SW    SW     W     S     S
TWIND SPD MS            2     2     3     3     3     2     2     3     1     3
TWIND SPD MPH           4     5     8     8     6     4     5     6     3     6
VENT INDEX                 4364        7770        6546        5172        3116
CATEGORY DAY                  3           4           3           3           2
500M MIXHGT T          91    90    90    93    93    91    92    94    94    94
500M TWND DIR          SE     S     W    SW    SW    SW    SW    SW    SW    SW
500M TWND M/S           4     6     4     4     5     6     4     2     2     7
500M TWND MPH           9    13     9     9    12    13     9     5     5    17
DISPERSION              4     3    25    29    12     4    17    22     4     6
LASI                    4     4     4     4     4     3     3     4     5     5
STABILITY               B     F     E     B     C     F     E     B     C     F
STAG INDEX                    0           2           2           3


DATE           07/27/08  MON 07/28/08  TUE 07/29/08  WED 07/30/08  THU 07/31/08
UTC 6HRLY     17 23 05   11 17 23 05   11 17 23 05   11 17 23 05   11 17 23
CDT 6HRLY     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

MAX/MIN          99      78    97      72    97      76    96      74    93
TEMP          95 97 83   78 96 95 81   72 91 95 80   76 93 94 80   74 90 91
DEWPT         69 68 69   71 70 68 68   68 68 67 67   67 67 68 69   69 69 69
MIN/MAX RH       39      88    40      86    44      90    50      91    86
RH            43 40 64   80 43 42 64   89 47 41 65   73 43 43 68   84 49 48
WIND DIR         SW       S    SW       S    SW       S    SW       S    SW
WIND SPD          4       4     4       3     3       4     5       4     5
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


National Weather Service
Memphis, TN
7777 Walnut Grove Rd. OM-1
Memphis,TN 38120
901-544-0399
Page Author: WFO Memphis, TN
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Date modified: December 8, 2006
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