343
FOUS54 KMEG 040835
PFWMEG
FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE MEMPHIS TN
335 AM CDT SUN JUN 4 2023
MSZ002-042200-
WINBORN NFDRS SITE-MARSHALL MS
34.69N 89.30W ELEV. 500 FT
335 AM CDT SUN JUN 4 2023
DATE SUN 06/04/23 MON 06/05/23 TUE 06/06/23
UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
CDT 3HRLY 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
MAX/MIN TEMP 92 65 91 66 91
TEMP 65 66 84 91 91 86 75 69 66 67 82 90 89 83 73 68 66 68 84 90 88 83
DEWPT 59 59 60 55 56 59 62 63 63 64 64 62 62 64 66 65 64 65 65 61 60 62
MAX/MIN RH 29 93 39 93 38
RH 81 78 44 30 31 40 64 81 90 90 55 39 41 53 79 90 93 90 53 38 39 49
WIND DIR NE NE NE NE NE E NE E E E SE E NE E SE S NW NW NW NW NW NW
WIND SPD 5 5 5 6 6 6 6 5 5 5 5 5 5 6 5 3 0 2 4 5 6 6
CLOUDS FW FW FW FW SC SC SC FW FW FW FW SC B1 B1 SC SC SC FW FW SC SC SC
CLOUDS(%) 7 12 14 23 45 40 32 24 18 9 20 38 57 52 31 36 41 21 15 39 48 38
POP 12HR 20 20 30 20 30
QPF 12HR 0.01 0.01 0.01 0.01 0.05
RAIN SHWRS IS SC SC IS IS SC SC
TSTMS IS SC SC IS IS SC SC
T WIND DIR NE NE NE NE NE NE NE SE SE SE SW NE N SE S SW W N NW NW NW NW
T WIND SPD 6 6 9 9 9 6 9 8 6 5 5 5 5 6 9 4 4 3 4 5 6 8
MIXHGT M AGL 3030 2641 21 16 1957 2010 27 8 2217 2155
MIXHGT FT AGL 9942 8665 69 53 6420 6596 89 27 7273 7069
MIXHGT M MSL 3152 2763 143 138 2079 2132 149 130 2339 2277
MIXHGT FT MSL 10342 9065 469 453 6820 6996 489 428 7673 7469
TRANSWIND DIR NE NE E SE E NE S W NW NW
TWIND SPD M/S 4 3 3 3 2 3 3 2 2 3
TWIND SPD MPH 9 8 8 6 5 6 6 4 4 6
VENT INDEX 12608 441 6396 456 4678
CATEGORY DAY 4 1 3 1 3
500M MIXHGT T 86 89 88 83 83 87 82 80 82 87
500M TWND DIR NE NE E SE S E S W W W
500M TWND M/S 4 3 4 7 3 2 6 6 3 1
500M TWND MPH 10 6 10 17 6 5 14 14 6 3
DISPERSION 29 6 7 8 18 5 5 4 18 5
LAL 1 2 2 1 3 3 2 1 3 3
LASI 6 6 5 4 4 4 4 3 5 5
STABILITY B C F E B B F E A C
STAG INDEX 3 3 3 3 3
DATE WED 06/07/23THU 06/08/23FRI 06/09/23SAT 06/10/23
UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
CDT 6HRLY 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MIN/MAX TEMP 63 91 65 89 62 87 62 91
TEMP 66 66 89 85 68 66 85 82 66 64 85 84 65 64 89 86
DEWPT 62 62 56 59 62 63 59 59 56 55 52 55 56 57 54 58
RH 87 87 33 41 81 90 41 46 70 73 32 37 73 78 30 39
WIND DIR NW NW NW N NE NE E SW
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW FW SC SC FW SC FW FW FW FW FW FW FW SC
POP 12HR 10 20 10 20 10 5 5 20
RAIN SHWRS IS IS IS IS
TSTMS IS IS
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
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 PRECIPITATON 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
MIXHGT M AGL........................MIXING HEIGHT IN METERS ABOVE GROUND LEVEL
MIXHGT FT AGL.......................MIXING HEIGHT IN FEET ABOVE GROUND LEVEL
MIXHGT M MSL........................MIXING HEIGHT IN METERS MEAN SEA LEVEL
MIXHGT FT MSL.......................MIXING HEIGHT IN FEET MEAN SEA LEVEL
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
DISPERSION..........................DISPERSION INDEX FOR SMOKE DISPERSION
EXAMPLE: 1-6 = VERY POOR; 7-12 = POOR; 13-20 = GENERALLY POOR
21-40 = FAIR; 41-60 = GENERALLY GOOD; 61-100 = GOOD
101+ = EXCELLENT
LAL.................................LIGHTNING ACTIVITY LEVEL
EXAMPLE: 1 = NO THUNDERSTORMS; 2 = ISOLATED THUNDERSTORMS
3 = WIDELY SCATTERED THUNDERSTORMS; 4 = SCATTERED THUNDERSTORMS
5 = NUMEROUS THUNDERSTORMS; 6 = DRY LIGHTNING WITH NO RAIN
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
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 DIR (8 POINT COMPASS)..........20 FT. WIND DIRECTION
WIND SPD (MPH)......................20 FT. WIND SPEED
AVG CLOUDS (CAT)....................AVERAGE CLOUD COVER CATEGORY
POP 12HR (%)........................PROBABILITY FOR ACCUMULATING PRECIPITATION
WEATHER...
SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS
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