EPAC: MARTY - Remnants

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EPAC: MARTY - Remnants

#1 Postby Nancy Smar » Sun Aug 22, 2021 1:17 am

EP, 94, 2021082206, , BEST, 0, 189N, 1043W, 30, 1004, DB,

https://ftp.nhc.noaa.gov/atcf/
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Re: EPAC: INVEST 94E

#2 Postby AlphaToOmega » Sun Aug 22, 2021 5:16 am

Grace was too powerful for the mountains of Mexico.
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ATL: GRACE - Remnants - Discussion

#3 Postby InfernoFlameCat » Sun Aug 22, 2021 6:56 am

Grace is generating serious convection right now. Wow. Reminds me of Iota as a tropical storm.
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ATL: GRACE - Remnants - Discussion

#4 Postby AlphaToOmega » Sun Aug 22, 2021 6:58 am

1. A large area of disorganized showers and thunderstorms along and
offshore of the coast of west-central Mexico is associated with
the remnants of Grace. Environmental conditions are forecast to be
conducive for development, and a tropical depression is likely to
form within the next day or so while the system moves westward at
10 to 15 mph away from the coast of Mexico.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 5 days...high...80 percent.
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Re: EPAC: INVEST 94E

#5 Postby aspen » Sun Aug 22, 2021 7:10 am

Will this be named Grace, or get an EPac name?
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Re: EPAC: INVEST 94E

#6 Postby AlphaToOmega » Sun Aug 22, 2021 7:12 am

aspen wrote:Will this be named Grace, or get an EPac name?

If it survives as a tropical cyclone when it crosses, it keeps its name. If it dissipates when it crosses and reforms in a new basin, it gets a new name. In this case, the Remnants of Grace will get a new name because it did not survive as a tropical cyclone when it crossed Mexico.
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Re: EPAC: INVEST 94E

#7 Postby cycloneye » Sun Aug 22, 2021 7:13 am

aspen wrote:Will this be named Grace, or get an EPac name?


Marty will be the EPAC name.
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Re: EPAC: INVEST 94E

#8 Postby InfernoFlameCat » Sun Aug 22, 2021 7:46 am

Epac is hyperactive
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Re: EPAC: INVEST 94E

#9 Postby Sciencerocks » Sun Aug 22, 2021 8:05 am

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Re: EPAC: INVEST 94E

#10 Postby Yellow Evan » Sun Aug 22, 2021 8:05 am

* GFS version *
* EAST PACIFIC 2021 SHIPS INTENSITY FORECAST *
* IR SAT DATA AVAILABLE, OHC AVAILABLE *
* INVEST EP942021 08/22/21 06 UTC *

TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120 132 144 156 168
V (KT) NO LAND 30 33 37 41 44 51 56 56 54 48 44 41 40 38 37 34 33
V (KT) LAND 30 33 37 41 44 51 56 56 54 48 44 41 40 38 37 34 33
V (KT) LGEM 30 32 35 37 39 42 42 38 33 28 24 21 19 17 N/A N/A N/A
Storm Type TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP

SHEAR (KT) 13 13 11 9 7 10 12 11 10 9 11 7 10 15 17 15 17
SHEAR ADJ (KT) 0 0 1 2 3 1 1 3 0 3 0 0 -1 -1 -4 -2 -4
SHEAR DIR 72 80 74 81 53 56 97 92 110 101 134 168 199 186 186 188 192
SST (C) 29.7 29.5 29.1 28.8 28.6 27.4 26.4 26.0 25.6 25.2 24.4 24.4 24.5 23.3 23.1 23.7 24.3
POT. INT. (KT) 163 161 156 154 152 140 129 125 121 116 108 109 109 97 94 100 105
200 MB T (C) -51.3 -51.4 -51.3 -51.0 -51.2 -51.1 -51.2 -51.4 -51.3 -51.8 -51.6 -51.7 -51.7 -52.1 -52.2 -52.6 -52.6
200 MB VXT (C) 0.7 0.8 0.7 1.0 1.1 0.9 0.7 0.7 0.5 0.6 0.6 0.3 0.1 0.0 0.0 0.0 0.0
TH_E DEV (C) 7 5 6 6 3 2 1 0 0 0 0 0 0 0 0 1 2
700-500 MB RH 75 75 76 76 76 72 68 62 59 58 54 50 49 42 37 34 29
MODEL VTX (KT) 5 8 10 11 10 14 14 12 11 8 7 6 6 LOST LOST LOST LOST
850 MB ENV VOR 82 78 74 81 78 84 52 35 38 44 47 44 19 0 6 15 11
200 MB DIV 52 59 40 40 25 20 21 -2 10 17 -15 -55 -22 11 -13 -4 -17
700-850 TADV 3 4 1 -3 -10 -3 6 8 3 7 5 3 9 14 20 16 20
LAND (KM) 10 94 191 299 414 458 646 815 1029 1190 1402 1689 1975 1955 1685 1439 1224
LAT (DEG N) 18.9 18.9 19.0 19.1 19.2 19.5 19.8 19.9 20.2 20.7 20.9 20.8 20.9 xx.x xx.x xx.x xx.x
LONG(DEG W) 104.3 105.7 106.9 108.2 109.5 112.5 115.5 118.2 121.0 123.8 126.6 129.8 133.1 xxx.x xxx.x xxx.x xxx.x
STM SPEED (KT) 14 12 12 12 13 15 13 13 13 13 14 15 14 14 11 11 9
HEAT CONTENT 22 19 18 17 14 6 1 0 0 0 0 0 0 0 0 0 0

FORECAST TRACK FROM TABM INITIAL HEADING/SPEED (DEG/KT):265/ 14 CX,CY: -13/ 0
T-12 MAX WIND: 25 PRESSURE OF STEERING LEVEL (MB): 457 (MEAN=587)
GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 19.2 (MEAN=14.5)
% GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 79.0 (MEAN=65.0)
PRELIM RI PROB (DV .GE. 35 KT IN 36 HR): 22.6

INDIVIDUAL CONTRIBUTIONS TO INTENSITY CHANGE
6 12 18 24 36 48 60 72 84 96 108 120 132 144 156 168
------------------------------------------------------------------------------
SAMPLE MEAN CHANGE 0. 0. 1. 1. 1. 2. 1. 1. 0. -0. -1. -2. -2. -3. -4. -4.
SST POTENTIAL -0. -0. 0. 1. 6. 11. 16. 20. 23. 24. 24. 23. 21. 19. 17. 16.
VERTICAL SHEAR MAG 1. 2. 2. 3. 4. 4. 3. 2. 1. -0. 0. 1. -0. -1. -3. -5.
VERTICAL SHEAR ADJ -0. -0. -0. -0. -0. -1. -1. -1. -0. -0. -0. -0. -0. -0. -0. 0.
VERTICAL SHEAR DIR 0. 0. 0. 0. -0. -0. -1. -1. -2. -2. -2. -2. -2. -2. -2. -2.
PERSISTENCE 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1.
200/250 MB TEMP. -0. -0. -1. -1. -2. -1. -1. -0. 1. 1. 2. 2. 2. 2. 2. 2.
THETA_E EXCESS 0. -0. -0. -1. -2. -4. -5. -7. -9. -10. -11. -12. -13. -13. -15. -17.
700-500 MB RH 0. 0. 0. 1. 1. 1. 1. 1. 1. 1. 1. 0. 0. 0. -0. -1.
MODEL VTX TENDENCY 1. 2. 4. 4. 6. 9. 8. 8. 4. 3. 0. 0. -0. -0. -0. -0.
850 MB ENV VORTICITY 0. 0. 0. 0. 0. -0. -0. -1. -1. -1. -1. -1. -1. -1. -0. -0.
200 MB DIVERGENCE 0. 0. 0. 0. -0. -0. -1. -1. -1. -2. -3. -2. -2. -1. 0. 1.
850-700 T ADVEC -0. -0. -0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 1. 1. 2. 3.
ZONAL STORM MOTION 0. 0. 1. 1. 2. 3. 3. 2. 2. 2. 2. 2. 1. 1. 1. -0.
STEERING LEVEL PRES -0. -0. -1. -1. -1. -2. -2. -2. -2. -3. -3. -3. -2. -2. -2. -1.
DAYS FROM CLIM. PEAK 0. 0. 0. 0. 0. 1. 1. 1. 2. 2. 3. 3. 3. 4. 5. 6.
GOES PREDICTORS 1. 1. 1. 1. 1. 1. 0. 0. -0. -0. -0. -0. -0. -0. -0. -1.
OCEAN HEAT CONTENT 0. 0. 0. -0. -0. -0. -1. -1. -0. -0. 0. 1. 1. 2. 3. 5.
RI POTENTIAL 0. 1. 2. 3. 4. 3. 2. 0. -0. -1. -1. -1. -1. -1. -1. -1.
------------------------------------------------------------------------------
TOTAL CHANGE 3. 7. 11. 14. 21. 26. 26. 24. 18. 15. 11. 10. 8. 7. 4. 3.

CURRENT MAX WIND (KT): 30. LAT, LON: 18.9 104.3

** 2021 E. Pacific RI INDEX EP942021 INVEST 08/22/21 06 UTC **
(SHIPS-RII PREDICTOR TABLE for 30 KT OR MORE MAXIMUM WIND INCREASE IN NEXT 24-h)

Predictor Value RI Predictor Range Scaled Value(0-1) % Contribution
POT = MPI-VMAX (KT) : 127.2 40.5 to 149.3 0.80 5.9
12 HR PERSISTENCE (KT) : 5.0 -22.0 to 44.0 0.41 3.5
D200 (10**7s-1) : 43.2 -33.0 to 159.5 0.40 2.7
850-200 MB SHEAR (KT) : 10.6 19.6 to 1.3 0.49 3.3
MAXIMUM WIND (KT) : 30.0 22.5 to 132.0 0.21 1.1
STD DEV OF IR BR TEMP : 19.2 37.8 to 2.1 0.52 2.4
BL DRY-AIR FLUX (W/M2) : 52.4 800.8 to -82.5 0.85 -4.4
HEAT CONTENT (KJ/CM2) : 18.0 2.7 to 106.7 0.15 0.6
%area of TPW <45 mm upshear : 0.0 56.6 to 0.0 1.00 1.5
2nd PC OF IR BR TEMP : -2.2 2.2 to -2.3 0.98 0.8

SHIPS Prob RI for 20kt/ 12hr RI threshold= 8% is 1.3 times climatological mean ( 6.3%)
SHIPS Prob RI for 25kt/ 24hr RI threshold= 20% is 1.6 times climatological mean (12.5%)
SHIPS Prob RI for 30kt/ 24hr RI threshold= 17% is 2.0 times climatological mean ( 8.6%)
SHIPS Prob RI for 35kt/ 24hr RI threshold= 16% is 2.6 times climatological mean ( 6.2%)
SHIPS Prob RI for 40kt/ 24hr RI threshold= 0% is 0.0 times climatological mean ( 4.2%)
SHIPS Prob RI for 45kt/ 36hr RI threshold= 16% is 2.4 times climatological mean ( 6.7%)
SHIPS Prob RI for 55kt/ 48hr RI threshold= 14% is 2.4 times climatological mean ( 5.9%)
SHIPS Prob RI for 65kt/ 72hr RI threshold= 12% is 2.5 times climatological mean ( 4.7%)

Matrix of RI probabilities
------------------------------------------------------------------------------
RI (kt / h) | 20/12 | 25/24 | 30/24 | 35/24 | 40/24 | 45/36 | 55/48 |65/72
------------------------------------------------------------------------------
SHIPS-RII: 8.1% 20.4% 17.3% 16.3% 0.0% 16.1% 14.5% 11.7%
Logistic: 3.7% 22.2% 10.2% 4.4% 1.3% 5.1% 2.1% 2.5%
Bayesian: 0.2% 1.2% 0.2% 0.0% 0.0% 0.2% 0.1% 0.0%
Consensus: 4.0% 14.6% 9.2% 6.9% 0.4% 7.1% 5.6% 4.7%
DTOPS: 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0%

## ANNULAR HURRICANE INDEX (AHI) EP942021 INVEST 08/22/21 06 UTC ##
## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=3 NFAIL=4 ##
## AHI= 0 (AHI OF 100 IS BEST FIT TO ANN. STRUC., 1 IS MARGINAL, 0 IS NOT ANNULAR) ##
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Re: EPAC: INVEST 94E

#11 Postby Yellow Evan » Sun Aug 22, 2021 8:09 am

* GFS version *
* EAST PACIFIC 2021 SHIPS INTENSITY FORECAST *
* IR SAT DATA AVAILABLE, OHC AVAILABLE *
* INVEST EP942021 08/22/21 12 UTC *

TIME (HR) 0 6 12 18 24 36 48 60 72 84 96 108 120 132 144 156 168
V (KT) NO LAND 30 33 37 40 45 48 52 53 50 45 39 36 32 32 33 32 32
V (KT) LAND 30 33 37 40 45 48 52 53 50 45 39 36 32 32 33 32 32
V (KT) LGEM 30 32 35 37 38 40 38 35 30 25 21 18 16 N/A N/A N/A N/A
Storm Type TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP TROP

SHEAR (KT) 13 10 8 6 9 14 11 16 11 14 12 10 9 11 9 13 12
SHEAR ADJ (KT) 2 4 2 4 0 0 3 1 2 1 -2 -2 -2 -6 0 -3 -3
SHEAR DIR 88 88 96 41 22 78 89 85 97 107 136 171 184 193 201 184 196
SST (C) 29.4 29.0 28.7 28.6 28.3 26.4 26.1 26.1 25.3 24.7 25.1 24.8 24.3 24.5 24.3 24.7 24.6
POT. INT. (KT) 160 156 152 152 149 129 126 126 118 111 116 113 107 108 106 109 108
200 MB T (C) -51.3 -51.0 -50.9 -51.2 -51.3 -50.9 -51.5 -51.3 -51.6 -51.8 -52.1 -52.3 -52.7 -52.9 -53.0 -53.1 -53.3
200 MB VXT (C) 0.7 0.7 0.9 1.1 1.2 0.8 0.8 0.3 0.0 0.3 0.2 0.1 0.2 0.1 0.0 0.0 0.0
TH_E DEV (C) 6 6 6 3 2 2 1 1 0 0 0 0 0 0 1 1 2
700-500 MB RH 74 75 75 75 74 71 66 62 60 56 51 50 47 44 40 39 38
MODEL VTX (KT) 8 10 12 13 16 15 15 14 13 11 9 8 6 6 6 6 5
850 MB ENV VOR 79 81 84 78 69 72 47 61 55 65 68 66 46 26 21 19 19
200 MB DIV 72 55 33 21 23 21 -2 -3 21 1 -37 -47 -36 -1 -15 -17 -27
700-850 TADV 4 2 -3 -13 -11 3 5 3 2 5 3 5 2 6 7 9 6
LAND (KM) 103 209 317 413 416 568 753 950 1159 1346 1618 1914 2103 1832 1592 1393 1216
LAT (DEG N) 18.9 19.0 19.1 19.2 19.3 19.5 19.6 19.8 20.1 20.5 20.2 20.0 19.6 xx.x xx.x xx.x xx.x
LONG(DEG W) 105.8 107.1 108.4 109.6 111.1 114.1 117.0 119.8 122.7 125.6 128.6 131.8 134.7 xxx.x xxx.x xxx.x xxx.x
STM SPEED (KT) 13 12 12 13 14 14 14 13 14 14 15 15 13 11 10 8 8
HEAT CONTENT 19 18 16 14 15 0 0 0 0 0 0 0 0 0 0 0 0

FORECAST TRACK FROM TABM INITIAL HEADING/SPEED (DEG/KT):270/ 14 CX,CY: -13/ 0
T-12 MAX WIND: 25 PRESSURE OF STEERING LEVEL (MB): 441 (MEAN=587)
GOES IR BRIGHTNESS TEMP. STD DEV. 50-200 KM RAD: 23.8 (MEAN=14.5)
% GOES IR PIXELS WITH T < -20 C 50-200 KM RAD: 88.0 (MEAN=65.0)
PRELIM RI PROB (DV .GE. 35 KT IN 36 HR): 21.7

INDIVIDUAL CONTRIBUTIONS TO INTENSITY CHANGE
6 12 18 24 36 48 60 72 84 96 108 120 132 144 156 168
------------------------------------------------------------------------------
SAMPLE MEAN CHANGE 0. 0. 1. 1. 1. 2. 1. 1. 0. -0. -1. -2. -2. -3. -4. -4.
SST POTENTIAL -0. -0. 0. 2. 6. 11. 16. 19. 21. 23. 23. 22. 20. 18. 18. 17.
VERTICAL SHEAR MAG 1. 2. 3. 3. 4. 4. 3. 1. -1. -2. -2. -1. -1. -1. -2. -3.
VERTICAL SHEAR ADJ -0. -0. -1. -1. -1. -1. -1. -1. -1. -0. -0. -0. -0. 0. 0. 0.
VERTICAL SHEAR DIR -0. -0. -0. -0. -0. -1. -1. -1. -2. -2. -2. -2. -2. -2. -2. -2.
PERSISTENCE 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1.
200/250 MB TEMP. -0. -0. -1. -1. -2. -1. -1. -0. 0. 1. 0. 1. 1. 1. 1. 1.
THETA_E EXCESS -0. -0. -1. -1. -3. -4. -6. -8. -9. -11. -12. -12. -13. -13. -15. -17.
700-500 MB RH 0. 0. 0. 1. 1. 1. 1. 1. 1. 0. 0. 0. 0. -0. -1. -1.
MODEL VTX TENDENCY 1. 2. 3. 6. 5. 7. 7. 6. 4. 1. -1. -3. -3. -2. -3. -3.
850 MB ENV VORTICITY 0. 0. 0. 0. 0. -0. -0. -1. -1. -1. -1. -1. -1. -1. -1. -1.
200 MB DIVERGENCE 0. 0. 0. 0. -0. -0. -1. -2. -2. -3. -3. -3. -2. -1. 0. 2.
850-700 T ADVEC -0. -0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 1. 1. 1. 2.
ZONAL STORM MOTION 0. 0. 1. 1. 2. 3. 3. 3. 2. 2. 2. 2. 1. 1. 1. -0.
STEERING LEVEL PRES -0. -0. -1. -1. -2. -2. -2. -2. -3. -3. -3. -3. -2. -2. -2. -1.
DAYS FROM CLIM. PEAK 0. 0. 0. 0. 0. 1. 1. 1. 2. 2. 3. 3. 3. 4. 5. 6.
GOES PREDICTORS 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1.
OCEAN HEAT CONTENT -0. -0. -0. -0. -0. -1. -1. -1. -0. -0. 0. 1. 1. 2. 4. 5.
RI POTENTIAL 0. 1. 2. 2. 3. 3. 1. 0. -0. -1. -1. -1. -1. -1. -1. -1.
------------------------------------------------------------------------------
TOTAL CHANGE 3. 7. 10. 15. 18. 22. 23. 20. 15. 9. 6. 2. 2. 3. 2. 2.

CURRENT MAX WIND (KT): 30. LAT, LON: 18.9 105.8

** 2021 E. Pacific RI INDEX EP942021 INVEST 08/22/21 12 UTC **
(SHIPS-RII PREDICTOR TABLE for 30 KT OR MORE MAXIMUM WIND INCREASE IN NEXT 24-h)

Predictor Value RI Predictor Range Scaled Value(0-1) % Contribution
POT = MPI-VMAX (KT) : 123.7 40.5 to 149.3 0.77 5.5
12 HR PERSISTENCE (KT) : 5.0 -22.0 to 44.0 0.41 3.4
D200 (10**7s-1) : 40.8 -33.0 to 159.5 0.38 2.6
850-200 MB SHEAR (KT) : 9.3 19.6 to 1.3 0.56 3.6
MAXIMUM WIND (KT) : 30.0 22.5 to 132.0 0.21 1.1
STD DEV OF IR BR TEMP : 23.8 37.8 to 2.1 0.39 1.8
BL DRY-AIR FLUX (W/M2) : 57.0 800.8 to -82.5 0.84 -4.2
HEAT CONTENT (KJ/CM2) : 16.4 2.7 to 106.7 0.13 0.5
%area of TPW <45 mm upshear : 0.0 56.6 to 0.0 1.00 1.4
2nd PC OF IR BR TEMP : -1.1 2.2 to -2.3 0.73 0.6

SHIPS Prob RI for 20kt/ 12hr RI threshold= 7% is 1.2 times climatological mean ( 6.3%)
SHIPS Prob RI for 25kt/ 24hr RI threshold= 18% is 1.4 times climatological mean (12.5%)
SHIPS Prob RI for 30kt/ 24hr RI threshold= 16% is 1.9 times climatological mean ( 8.6%)
SHIPS Prob RI for 35kt/ 24hr RI threshold= 15% is 2.5 times climatological mean ( 6.2%)
SHIPS Prob RI for 40kt/ 24hr RI threshold= 0% is 0.0 times climatological mean ( 4.2%)
SHIPS Prob RI for 45kt/ 36hr RI threshold= 14% is 2.1 times climatological mean ( 6.7%)
SHIPS Prob RI for 55kt/ 48hr RI threshold= 12% is 2.1 times climatological mean ( 5.9%)
SHIPS Prob RI for 65kt/ 72hr RI threshold= 0% is 0.0 times climatological mean ( 4.7%)

Matrix of RI probabilities
------------------------------------------------------------------------------
RI (kt / h) | 20/12 | 25/24 | 30/24 | 35/24 | 40/24 | 45/36 | 55/48 |65/72
------------------------------------------------------------------------------
SHIPS-RII: 7.3% 17.7% 16.1% 15.3% 0.0% 13.9% 12.3% 0.0%
Logistic: 2.9% 13.2% 5.9% 2.1% 0.4% 1.8% 1.0% 1.9%
Bayesian: 0.2% 1.2% 0.2% 0.0% 0.0% 0.1% 0.0% 0.0%
Consensus: 3.5% 10.7% 7.4% 5.8% 0.1% 5.2% 4.4% 0.6%
DTOPS: 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0% 999.0%

## ANNULAR HURRICANE INDEX (AHI) EP942021 INVEST 08/22/21 12 UTC ##
## STORM NOT ANNULAR, SCREENING STEP FAILED, NPASS=4 NFAIL=3 ##
## AHI= 0 (AHI OF 100 IS BEST FIT TO ANN. STRUC., 1 IS MARGINAL, 0 IS NOT ANNULAR) ##
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Re: EPAC: INVEST 94E

#12 Postby NDG » Sun Aug 22, 2021 9:11 am

Great example that if a tropical system has a strong mid level circulation and shear is in its favor it can redevelop after passing through high mountains when is back over water.
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Re: EPAC: INVEST 94E

#13 Postby NDG » Sun Aug 22, 2021 9:13 am

InfernoFlameCat wrote:Epac is hyperactive


No where near hyperactive :lol:
Is slightly above average.
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Re: EPAC: INVEST 94E

#14 Postby cycloneye » Sun Aug 22, 2021 12:45 pm

Showers and thunderstorms associated with an area of low pressure
located about 100 miles west of the coast of west-central Mexico are
becoming better organized. Environmental conditions are expected to
be conducive for further development, and a tropical depression is
likely to form later today or on Monday while the system moves
westward at 10 to 15 mph, away from the coast of Mexico.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 5 days...high...90 percent.
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Re: EPAC: INVEST 94E

#15 Postby Yellow Evan » Sun Aug 22, 2021 12:49 pm

Image

Might be ASCAT A doing weird stuff but if true, not yet closed.
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Re: EPAC: INVEST 94E

#16 Postby Iceresistance » Sun Aug 22, 2021 3:02 pm

Eye Feature on Visible?

Image
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Bill 2015 & Beta 2020

Winter 2020-2021 :cold:

All observations are in Tecumseh, OK unless otherwise noted.

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Yellow Evan
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Re: EPAC: INVEST 94E

#17 Postby Yellow Evan » Sun Aug 22, 2021 3:11 pm

:uarrow: That’s dry air.
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Re: EPAC: INVEST 94E

#18 Postby Iceresistance » Sun Aug 22, 2021 3:12 pm

Yellow Evan wrote::uarrow: That’s dry air.


Thanks, that looked weird . . .
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Winter 2020-2021 :cold:

All observations are in Tecumseh, OK unless otherwise noted.

Winter posts are focused mainly for Oklahoma & Texas.

Take any of my forecasts with a grain of salt, refer to the NWS, SPC, and NHC for official information

Never say Never with weather! Because ANYTHING is possible!

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Re: EPAC: INVEST 94E

#19 Postby EquusStorm » Sun Aug 22, 2021 4:16 pm

Having the vigorous anticyclone aloft from a former major hurricane certainly can't hurt things...

Image
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Re: EPAC: INVEST 94E

#20 Postby InfernoFlameCat » Sun Aug 22, 2021 4:22 pm

Yellow Evan wrote::uarrow: That’s dry air.

I think the Anti cyclone is helping the outflow tremendously, generating an eye feature that normally would not be present over a weak system like that.
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