ATL: ALBERTO - Post-Tropical

[stormreader]

I knew they would likely find higher winds in that convection.. hurricane force at flight level. Winds should be upped to 70 mph

And it is sub-tropical. I don’t see it making the transition to tropical right now. It looks as though it may be becoming a more intense month of May subtropical storm.

[bella_may]

Almost looks like an ULL is right over the coc?

Things are getting weird.

[cycloneye]

The pressure readings are not showing up.

[chaser1]

011800 2844N 08526W 8432 01456 //// +134 //// 128061 064 043 006 01

NE Quad too! All thats missing is towers.

That's Alberto for you. He's one shallow dude

[gatorcane]

I knew they would likely find higher winds in that convection.. hurricane force at flight level. Winds should be upped to 70 mph

And it is sub-tropical. I don’t see it making the transition to tropical right now. It looks as though it may be becoming a more intense month of May subtropical storm.

Yes looks very subtropical and not a CAT 1 hurricane. Think NHC made the correct call with no hurricane warnings:

http://rammb.cira.colostate.edu/ramsdis ... display=12

[Aric Dunn]

Deeper convection firing on the south side of center now too.. plenty of moisture is being pulled in through that band.

[weathaguyry]

Location as of the Special Advisory is 28.4N 85.7W

[BobHarlem]

Is there another storm similar to Alberto? I really don't remember anything like this.

[TheStormExpert]

Is it normal to have this much dry air in the Gulf this time of year? I remember that other May and June Gulf of Mexico Subtropical and Tropical Storms didn’t have to put up with as much dry air.

[Aric Dunn]

I knew they would likely find higher winds in that convection.. hurricane force at flight level. Winds should be upped to 70 mph

And it is sub-tropical. I don’t see it making the transition to tropical right now. It looks as though it may be becoming a more intense month of May subtropical storm.

Yes looks very subtropical and not a CAT 1 hurricane. Think NHC made the correct call with no hurricane warnings:

http://rammb.cira.colostate.edu/ramsdis ... display=12

well tropical vs sub tropical is all dependent on the temp, dewpoint profile among other things.

[TheStormExpert]

I knew they would likely find higher winds in that convection.. hurricane force at flight level. Winds should be upped to 70 mph

And it is sub-tropical. I don’t see it making the transition to tropical right now. It looks as though it may be becoming a more intense month of May subtropical storm.

Yes looks very subtropical and not a CAT 1 hurricane. Think NHC made the correct call with no hurricane warnings:

http://rammb.cira.colostate.edu/ramsdis ... display=12

Yes the dry air is the whole reason that this will never likely transition to fully tropical, besides time is running out.

[weathaguyry]

Just a question, but if Alberto keeps its current structure and recon finds winds to justify an upgrade to Cat 1, what could the NHC call it, a Subtropical Hurricane?

[stormreader]

Will be interesting to see if this subtropical storm can develop wind speeds of hurricane intensity, Also, being a strong sub-tropical system may make it averyinteresting system to follow in the days after landfall.

[Aric Dunn]

and yes. looks like Alberto is stalled and doing a cyclonic loop like the models were saying yesterday.

[CrazyC83]

000
URNT15 KNHC 280141
AF306 0501A ALBERTO HDOB 29 20180528
013200 2806N 08554W 8433 01410 //// +180 //// 303019 020 021 001 01
013230 2805N 08555W 8426 01420 //// +182 //// 306020 020 024 000 01
013300 2804N 08557W 8430 01419 //// +182 //// 308023 024 026 000 01
013330 2802N 08558W 8427 01426 //// +178 //// 310027 028 031 000 01
013400 2801N 08559W 8431 01424 //// +177 //// 311030 032 032 001 01
013430 2800N 08601W 8434 01424 //// +176 //// 312033 033 034 001 01
013500 2759N 08602W 8430 01432 //// +175 //// 312032 033 035 000 01
013530 2758N 08603W 8425 01441 //// +168 //// 313033 033 036 000 01
013600 2757N 08604W 8433 01436 //// +169 //// 314030 032 037 001 01
013630 2756N 08606W 8429 01444 //// +164 //// 316033 034 038 001 01
013700 2754N 08607W 8425 01450 //// +165 //// 321035 035 038 001 01
013730 2753N 08608W 8429 01448 //// +164 //// 322038 039 038 000 01
013800 2752N 08610W 8426 01456 //// +166 //// 321039 040 037 000 01
013830 2751N 08611W 8429 01457 //// +163 //// 316040 041 035 000 01
013900 2750N 08612W 8430 01456 //// +160 //// 315041 041 033 001 01
013930 2749N 08614W 8433 01457 //// +149 //// 316041 043 033 001 01
014000 2748N 08615W 8425 01468 //// +139 //// 323039 041 034 001 01
014030 2746N 08616W 8432 01465 //// +150 //// 322035 038 035 001 01
014100 2745N 08618W 8432 01469 9992 +159 +130 319035 035 034 000 01
014130 2744N 08619W 8428 01474 9990 +160 +148 320036 037 033 001 01
$$
;

[chaser1]

Just a question, but if Alberto keeps its current structure and recon finds winds to justify an upgrade to Cat 1, what could the NHC call it, a Subtropical Hurricane?

(a HurrSubTropiCane lol)

[NotSparta]

Is it normal to have this much dry air in the Gulf this time of year? I remember that other May and June Gulf of Mexico Subtropical and Tropical Storms didn’t have to put up with as much dry air.

Could it be due to the ULL causing sinking air in places?

[cycloneye]

It has moved to the WSW in a loop and down to 991 mbs.

[GCANE]

Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 28th day of the month at 1:40Z
Agency: United States Air Force
Aircraft: Lockheed WC-130J Hercules with reg. number AF97-5306
Storm Number & Year: 01 in 2018
Storm Name: Alberto (flight in the North Atlantic basin)
Mission Number: 5
Observation Number: 14 ( See all messages of this type for this mission. )

A. Time of Center Fix: 28th day of the month at 1:30:40Z
B. Center Fix Coordinates: 28°10'N 85°51'W (28.1667N 85.8500W)
B. Center Fix Location: 139 statute miles (224 km) to the S (185°) from Panama City, FL, USA.
C. Minimum Height at Standard Level: 1,340m (4,396ft) at 850mb
D. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 46kts (52.9mph)
E. Location of the Estimated Maximum Surface Wind Inbound: 33 nautical miles (38 statute miles) to the NE (35°) of center fix
F. Maximum Flight Level Wind Inbound: From 128° at 64kts (From the SE at 73.6mph)
G. Location of the Maximum Flight Level Wind Inbound: 40 nautical miles (46 statute miles) to the NE (37°) of center fix
H. Minimum Sea Level Pressure: 991mb (29.27 inHg)
I. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 15°C (59°F) at a pressure alt. of 1,525m (5,003ft)
J. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 19°C (66°F) at a pressure alt. of 1,523m (4,997ft)
K. Dewpoint Temp & Sea Surface Temp: Not Available
L. Eye Character: Not Available
M. Eye Shape: Not Available
N. Fix Determined By: Penetration, Wind, Pressure and Temperature
N. Fix Levels (surface & flight level centers within 5nm of each other): Surface and 850mb
O. Navigational Fix Accuracy: 0.02 nautical miles
O. Meteorological Accuracy: 4 nautical miles

Remarks Section:

Maximum Flight Level Wind: 64kts (~ 73.6mph) which was observed 40 nautical miles (46 statute miles) to the NE (37°) from the flight level center at 1:18:00Z
Dropsonde Surface Wind at Center: From 95° at 2kts (From the E at 2mph)

[cycloneye]

The pressure readings are not showing up.

And just like that,they are again showing up.