Author Topic: STS-119: Landing Weather (Read 24280 times)

psloss · « **on:** 03/26/2009 06:51 pm »

Looks like this could be a short thread; SMG out with Saturday forecasts today:
http://www.srh.noaa.gov/smg/SMG_prod.php?pil=OAV&sid=JSC&version=0

Quote

000
NOUS54 KWNJ 261222
OAVJSC

NOAA/NATIONAL WEATHER SERVICE
SPACEFLIGHT METEOROLOGY GROUP / WS8
LYNDON B. JOHNSON SPACE CENTER
HOUSTON TX 77058
800 AM CDT THURSDAY MARCH 26 2009

LANDING FORECAST FOR STS-119

EXPECTED LANDING DATE: 03/28/09
TIME: 1739Z
SITE: KENNEDY SPACE CENTER...FL

U.S. LANDING SITES - EOM - SATURDAY 03/28/09

SHUTTLE LANDING FACILITY...KENNEDY SPACE CENTER FL
KSC SCT050 7 17013P21

EDWARDS AIR FORCE BASE CA
EDW SKC 7 06006P09

NORTHRUP STRIP...WHITE SANDS SPACE HARBOR NM
NOR SKC 7 27003P05

FLIGHT RULE VIOLATIONS:
KSC ... NONE
EDW ... NONE
NOR ... NONE

Sunday doesn't look so hot, but hopefully it doesn't get to that:

Quote

U.S. LANDING SITES - EOM+1 - SUNDAY 03/29/09

SHUTTLE LANDING FACILITY...KENNEDY SPACE CENTER FL
KSC SCT030 BKN080 7 26013P21
CHC BKN030 CHC TSRA WI 30NM

EDWARDS AIR FORCE BASE CA
EDW SCT250 7 28015P22

NORTHRUP STRIP...WHITE SANDS SPACE HARBOR NM
NOR SKC 7 22013P26

FLIGHT RULE VIOLATIONS:
KSC ... ANVIL/CIG/PRECIP/XWIND
EDW ... XWIND
NOR ... GUST

hygoex · « **Reply #1 on:** 03/27/2009 12:10 am »

With multiple runways at Edwards, why would crosswinds be an issue?

DaveS · « **Reply #2 on:** 03/27/2009 12:18 am »

Quote from: hygoex on 03/27/2009 12:10 am

With multiple runways at Edwards, why would crosswinds be an issue?

They only use one, the main concrete runway(22/04).

rdale · « **Reply #3 on:** 03/27/2009 12:07 pm »

There's a pretty powerful and widespread storm system moving through the southeast the next few days, I might keep a little more cloudiness in the KSC forecast than they do but still not to the point of causing a problem. Sunday is a no-go for FL.

psloss · « **Reply #4 on:** 03/27/2009 12:14 pm »

Latest from SMG:

Quote

000
NOUS54 KWNJ 271240
OAVJSC

NOAA/NATIONAL WEATHER SERVICE
SPACEFLIGHT METEOROLOGY GROUP / WS8
LYNDON B. JOHNSON SPACE CENTER
HOUSTON TX 77058
800 AM CDT FRIDAY MARCH 27 2009

LANDING FORECAST FOR STS-119

EXPECTED LANDING DATE: 03/28/09
TIME: 1738Z
SITE: KENNEDY SPACE CENTER...FL

U.S. LANDING SITES - EOM - SATURDAY 03/28/09

SHUTTLE LANDING FACILITY...KENNEDY SPACE CENTER FL
KSC SCT050 SCT200 7 17013P21
SLGT CHC BKN050

EDWARDS AIR FORCE BASE CA
EDW SKC 7 06006P09

NORTHRUP STRIP...WHITE SANDS SPACE HARBOR NM
NOR SKC 7 34003P05

FLIGHT RULE VIOLATIONS:
KSC ... CIG
EDW ... NONE
NOR ... NONE

U.S. LANDING SITES - EOM+1 - SUNDAY 03/29/09

SHUTTLE LANDING FACILITY...KENNEDY SPACE CENTER FL
KSC SCT030 BKN080 7 26013P21
CHC BKN030 CHC TSRA WI 30NM

EDWARDS AIR FORCE BASE CA
EDW SCT250 7 26020P30

NORTHRUP STRIP...WHITE SANDS SPACE HARBOR NM
NOR SKC 7 22013P26

FLIGHT RULE VIOLATIONS:
KSC ... ANVIL/CIG/PRECIP/XWIND
EDW ... XWIND
NOR ... GUST

THE NEXT SCHEDULED FORECAST WILL BE ISSUED 27/2300Z

KSC...KENNEDY SPACE CENTER...FL
ICAO ID IS KTTS
EDW...EDWARDS AIR FORCE BASE...CA
ICAO ID IS KEDW
NOR...NORTHRUP STRIP WHITE SANDS SPACE HARBOR...NM
ICAO ID IS KE28 (KHMN IS NEARBY)

ORAM/WILEY/PROTON/HOOD

psloss · « **Reply #5 on:** 03/27/2009 12:18 pm »

The latest CONUS forecast sheet attached as a screencap; mostly redundant, but includes an early look at Monday...

rdale · « **Reply #6 on:** 03/27/2009 03:41 pm »

Looking at the new data and it might make sense to make sure Edwards is ready on Saturday... KSC could be a little worse than the official forecast on Saturday, and they definitely won't be landing in Florida (or apparently anywhere in the US) on Sunday.

DwightM · « **Reply #7 on:** 03/27/2009 03:50 pm »

Quote from: rdale on 03/27/2009 03:41 pm

Looking at the new data and it might make sense to make sure Edwards is ready on Saturday... KSC could be a little worse than the official forecast on Saturday, and they definitely won't be landing in Florida (or apparently anywhere in the US) on Sunday.

Yesterday they told the crew that EOM and EOM+1 would be KSC only (based on their current forecast). Plenty of time to change their minds, though.

psloss · « **Reply #8 on:** 03/27/2009 03:51 pm »

Quote from: rdale on 03/27/2009 03:41 pm

Looking at the new data and it might make sense to make sure Edwards is ready on Saturday... KSC could be a little worse than the official forecast on Saturday, and they definitely won't be landing in Florida (or apparently anywhere in the US) on Sunday.

Based on the call that even on Sunday, it would be KSC only, I'm assuming they can stay up beyond Sunday. Hopefully we'll get the official landing strategy outlook from Richard Jones later this afternoon.

DwightM · « **Reply #9 on:** 03/27/2009 04:51 pm »

Quote from: psloss on 03/27/2009 03:51 pm

Quote from: rdale on 03/27/2009 03:41 pm
Looking at the new data and it might make sense to make sure Edwards is ready on Saturday... KSC could be a little worse than the official forecast on Saturday, and they definitely won't be landing in Florida (or apparently anywhere in the US) on Sunday.
Based on the call that even on Sunday, it would be KSC only, I'm assuming they can stay up beyond Sunday. Hopefully we'll get the official landing strategy outlook from Richard Jones later this afternoon.

I believe one of the reasons for the late hatch closure was to preserve the cold samples for a possible EOM+3 (Tuesday).

Edit: Per the presser the samples are good through EOM+2. There would be some degridation at EOM+3.

rdale · « **Reply #10 on:** 03/27/2009 07:14 pm »

Per the presser the EOM+3 is still good to go, so no reason to activate the other sites this weekend. Odds are that if first opportunity at KSC is no-go, then nothing gets better until Monday.

psloss · « **Reply #11 on:** 03/27/2009 07:16 pm »

Quote from: rdale on 03/27/2009 07:14 pm

Per the presser the EOM+3 is still good to go, so no reason to activate the other sites this weekend. Odds are that if first opportunity at KSC is no-go, then nothing gets better until Monday.

Yeah, Monday is the "pick-em" day as Richard Jones said; Tuesday would be for systems/contingencies...

rdale · « **Reply #12 on:** 03/28/2009 09:54 am »

There's a major severe weather event that's been sliding along the Gulf Coast overnight, that's expected to concentrate the thick clouds and showers to the north of KSC today.

However due in part to the strength of this storm, winds will ramp up pretty quickly into the afternoon. That's really the only concern I have, but that's pretty tough to forecast until the we get closer to noontime today. The NWS forecast at landing time says winds out of the south sustained at 19mph with gusts to 27mph, which thanks to the runway orientation would be close to (if not over) the crosswind limits. Patrick AFB has a similar outlook.

I'm not sure if SMG will update their presentation today, but here is Friday's: http://www.srh.noaa.gov/images/rtimages/smg/Landing_Wx.ppt

clongton · « **Reply #13 on:** 03/28/2009 10:19 am »

Quote from: psloss on 03/27/2009 03:51 pm

Quote from: rdale on 03/27/2009 03:41 pm
Looking at the new data and it might make sense to make sure Edwards is ready on Saturday... KSC could be a little worse than the official forecast on Saturday, and they definitely won't be landing in Florida (or apparently anywhere in the US) on Sunday.
Based on the call that even on Sunday, it would be KSC only, I'm assuming they can stay up beyond Sunday. Hopefully we'll get the official landing strategy outlook from Richard Jones later this afternoon.

Due to early station departure to accommodate Soyuz, Discovery has sufficient consumables to allow an on-orbit stay thru Thursday. Not sure about the down mass condition however.

Hopefully the weather system to the north stays far enough away that Fla remains viable for today. I plan to be at KSC for the landing and would hate to leave without Discovery being home.

psloss · « **Reply #14 on:** 03/28/2009 01:15 pm »

Quote from: clongton on 03/28/2009 10:19 am

Due to early station departure to accommodate Soyuz, Discovery has sufficient consumables to allow an on-orbit stay thru Thursday. Not sure about the down mass condition however.

Not a biggie, but thought I heard it was Tuesday, based on LiOH.

psloss · « **Reply #15 on:** 03/28/2009 01:16 pm »

Forecast from earlier in the morning from SMG:

Quote

000
NOUS54 KWNJ 281129
OAVJSC

NOAA/NATIONAL WEATHER SERVICE
SPACEFLIGHT METEOROLOGY GROUP / WS8
LYNDON B. JOHNSON SPACE CENTER
HOUSTON TX 77058
630 AM CDT SATURDAY MARCH 28 2009

LANDING FORECAST FOR STS-119

EXPECTED LANDING DATE: 03/28/09
TIME: 1738Z
SITE: KENNEDY SPACE CENTER...FL

U.S. LANDING SITES - EOM - SATURDAY 03/28/09

SHUTTLE LANDING FACILITY...KENNEDY SPACE CENTER FL
FIRST OPPORTUNITY
KSC SCT040 BKN200 7 17015P23
SLGT CHC BKN040

SECOND OPPORTUNITY
KSC SCT050 SCT100 BKN200 7 15016P25
SLGT CHC BKN050

EDWARDS AIR FORCE BASE CA
EDW SKC 7 06006P09

NORTHRUP STRIP...WHITE SANDS SPACE HARBOR NM
NOR SKC 7 33005P08

FLIGHT RULE VIOLATIONS:
KSC ... CIG
EDW ... NONE
NOR ... NONE

U.S. LANDING SITES - EOM+1 - SUNDAY 03/29/09

SHUTTLE LANDING FACILITY...KENNEDY SPACE CENTER FL
KSC SCT030 BKN080 7 26013P21
CHC BKN030 CHC TSRA WI 30NM

EDWARDS AIR FORCE BASE CA
EDW SCT250 7 26020P30

NORTHRUP STRIP...WHITE SANDS SPACE HARBOR NM
NOR BKN250 7 22013P26

FLIGHT RULE VIOLATIONS:
KSC ... ANVIL/CIG/PRECIP/XWIND
EDW ... XWIND
NOR ... GUST

THE NEXT SCHEDULED FORECAST WILL BE ISSUED AS NEEDED

KSC...KENNEDY SPACE CENTER...FL
ICAO ID IS KTTS
EDW...EDWARDS AIR FORCE BASE...CA
ICAO ID IS KEDW
NOR...NORTHRUP STRIP WHITE SANDS SPACE HARBOR...NM
ICAO ID IS KE28 (KHMN IS NEARBY)

ORAM/WILEY/PROTON/HOOD

Ronsmytheiii · « **Reply #16 on:** 03/28/2009 01:36 pm »

rdale · « **Reply #17 on:** 03/28/2009 01:44 pm »

Winds at the landing site are currently from the south at 20mph with gusts recorded to 33mph, new forecast from PAFB expects even higher gusts after noon.

johng · « **Reply #18 on:** 03/28/2009 01:44 pm »

A) What's CIG?

B) What's the gust limit? Online weather reports show gusts over 30 mph now.

psloss · « **Reply #19 on:** 03/28/2009 01:47 pm »

Quote from: johng on 03/28/2009 01:44 pm

A) What's CIG?

http://www.srh.noaa.gov/smg/fcstint.htm

Quote

Following the forecast section, flight rule violations are
highlighted on a station by station basis.
Violations Include: CIG = Ceiling
SHRA = Rain Showers
TSRA = Thunderstorms
XWIND = Crosswinds

On the gust limits, Rob knows that well, but there's also a general weather guideline here:
http://www.srh.noaa.gov/smg/wxcrit.htm

Quote

2. Peak winds may not exceed the average wind speed by more than 10 knots.

rdale · « **Reply #20 on:** 03/28/2009 01:51 pm »

The end of mission landing weather forecast is prepared by the NOAA National Weather Service Spaceflight Meteorology Group in Houston for the astronauts, Flight Director and Mission Management Team. All criteria refer to observed and forecast weather conditions. Decision time for the de-orbit burn is 70 - 90 minutes before landing. The weather criteria are:

- Cloud coverage of 4/8 or less below 8,000 feet and a visibility of 5 miles or greater required.

- The peak cross wind cannot exceed 15 knots, 12 knots at night. If the mission duration is greater than 20 days the limit is 12 knots, day and night.

- Headwind cannot exceed 25 knots.

- Tailwind cannot exceed 10 knots average, 15 knots peak.

- No thunderstorm, lightning, or precipitation activity is within 30 nautical miles of the landing site.

- Detached opaque thunderstorm anvils less than three hours old must not be within 20 nautical miles of the landing field, or within 10 nautical miles of the flight path when the orbiter is within 30 nautical miles of the runway.

- Turbulence must be less than or equal to moderate intensity.

- Consideration may be given for landing with a “no go” observation and a “go” forecast if at decision time analysis clearly indicates a continuing trend of improving weather conditions, and the forecast states that all weather criteria will be met at landing time.

rdale · « **Reply #21 on:** 03/28/2009 02:03 pm »

Winds from 170* at 15kts with gusts to 23kts as of 10:55am EDT, so not exceeding limits. Peak wind in the last hour was 29kts from due south at 10:40am. Overcast at 20,000ft but that's not an issue.

Lee Jay · « **Reply #22 on:** 03/28/2009 02:08 pm »

Is scattered at 4,000 a violation? I don't know how where scattered falls relative to 4/8.

psloss · « **Reply #23 on:** 03/28/2009 02:13 pm »

Quote from: Lee Jay on 03/28/2009 02:08 pm

Is scattered at 4,000 a violation? I don't know how where scattered falls relative to 4/8.

Scattered isn't a violation...if you look at the last posted SMG forecast, they note the ceiling concern is a slight chance of a broken layer at 4k for the 1st opportunity and at 5k for the 2nd. (Ceiling limit is 8k.)

rdale · « **Reply #24 on:** 03/28/2009 02:14 pm »

TTS lists the exact 8ths in their remarks section. Right now they have 1/8th at 4,000ft and 8/8ths at 20,000ft.

Lee Jay · « **Reply #25 on:** 03/28/2009 02:19 pm »

Thanks - still learning to read these things.

So, if I understand right, we're currently go forecast go, but not at all far from the limits so that could change easily.

psloss · « **Reply #26 on:** 03/28/2009 02:35 pm »

Latest observation from (K)TTS:
SPECI KTTS 281525Z 18016G25KT 10SM FEW028 SCT100 OVC200 26/20 A2989 RMK SLP122 1SC /1/ 3AC 8CS /5/ N1816/25 C1614/21 S1616/23

Now showing scattered at 10k...

rdale · « **Reply #27 on:** 03/28/2009 03:07 pm »

Getting worse... Sustained 20kts with gusts to 28kts out of 200* so more of a crosswind. 3/8ths at 2800ft with overcast at 28000ft.

psloss · « **Reply #28 on:** 03/28/2009 03:07 pm »

Here's the full obs:

METAR KTTS 281555Z 19020G28KT 10SM SCT028 OVC200 26/20 A2989 RMK PK WND 19028/55 N MDT CU N SLP122 3CU /3/ 8CS /6/ N1920/28 C1912/22 S1713/23

rdale · « **Reply #29 on:** 03/28/2009 03:09 pm »

I've not heard any news on a report from the STA, it wouldn't surprise me if the STA thought things were good enough. The limits are well below the certified limits anyways. At least we're going according to the forecast so far!

rdale · « **Reply #30 on:** 03/28/2009 03:09 pm »

New forecast from SMG - they say no worries about winds, just a low cloud layer. I disagree.

U.S. LANDING SITES - EOM - SATURDAY 03/28/09

SHUTTLE LANDING FACILITY...KENNEDY SPACE CENTER FL
FIRST OPPORTUNITY
KSC BKN030 BKN100 OVC200 7 17017P25

SECOND OPPORTUNITY
KSC SCT050 SCT100 BKN200 7 15016P25
SLGT CHC BKN050

psloss · « **Reply #31 on:** 03/28/2009 03:11 pm »

Quote from: rdale on 03/28/2009 03:09 pm

I've not heard any news on a report from the STA, it wouldn't surprise me if the STA thought things were good enough. The limits are well below the certified limits anyways. At least we're going according to the forecast so far!

Along with the input from the weather pilot at KSC, I guess a question is what the forecast is, versus current observation.

psloss · « **Reply #32 on:** 03/28/2009 03:15 pm »

Quote from: rdale on 03/28/2009 03:09 pm

New forecast from SMG - they say no worries about winds, just a low cloud layer. I disagree.

Moot point, since they've waived off the 1st rev, but am I reading the SMG forecast sheet right? Seems like the broken deck forecast at 3k would be an issue...

rdale · « **Reply #33 on:** 03/28/2009 03:16 pm »

You are reading that right, SMG is only worried about clouds, not winds. I'm really not that worried about clouds, more the winds. We'll see...

rdale · « **Reply #34 on:** 03/28/2009 03:26 pm »

I don't see any reason to be more optimistic for 2nd try conditions, I wouldn't expect much change if any from what we're dealing with now.

rdale · « **Reply #35 on:** 03/28/2009 03:29 pm »

Updated MMT package at http://www.srh.noaa.gov/images/rtimages/smg/Landing_Wx.ppt

Lawntonlookirs · « **Reply #36 on:** 03/28/2009 03:33 pm »

I did come to the weather thread to see what has been posted. I will post the NWS wind Advisory here also.

... Lake Wind Advisory in effect from 11 am this morning to 6 PM
EDT this evening...

The National Weather Service in Melbourne has issued a lake Wind
Advisory... which is in effect from 11 am this morning to 6 PM EDT
this evening.

The pressure gradient between a ridge of high pressure over the
western Atlantic and a developing storm system over the Central
Plains is forecast as the storm intensifies and moves northeast
today.

South winds will increase to around 20 mph across all of east
central Florida with occasional gusts up to 30 mph. Conditions
will be particularly hazardous on area lakes... and open waterways
such as the intracoastal.

Precautionary/preparedness actions...

Strong and gusty winds will create rough and hazardous boating
conditions on area lakes and the intracoastal waters. This may
result in high waves which may tip or swamp small craft.

rdale · « **Reply #37 on:** 03/28/2009 03:38 pm »

Fortunately the shuttle doesn't land on a lake

Winds out of the south at sustained 21mph gusting to 33mph.

ItsyAndy · « **Reply #38 on:** 03/28/2009 03:48 pm »

I am with rdale here. I am no weather guru but from my little understading of the matter doesn't look like the situation could be changing in the next few hours; if the clouds stay there the winds will be as well.

kch · « **Reply #39 on:** 03/28/2009 03:50 pm »

Are all three landing sites still forecast to be "no-go" for tomorrow? Looked that way earlier ... just wondered if anything had changed.

Lawntonlookirs · « **Reply #40 on:** 03/28/2009 03:51 pm »

Quote from: rdale on 03/28/2009 03:29 pm

Updated MMT package at http://www.srh.noaa.gov/images/rtimages/smg/Landing_Wx.ppt

This isn't opening for me. What are the landing times for Sunday?

rdale · « **Reply #41 on:** 03/28/2009 03:51 pm »

Yep, check the graphic psloss posted above with the parts in bold, or the powerpoint that I linked.

rdale · « **Reply #42 on:** 03/28/2009 03:52 pm »

Lawton - you need a free powerpoint viewer.

EDT:

KSC 1401 / 1537
EDW 1706 / 1842
NOR 1533 / 1708

Lawntonlookirs · « **Reply #43 on:** 03/28/2009 03:55 pm »

Thanks, Got it. Out for the day. I don't think we will see anything again this afternoon, but we will have to see. Have a great afternooon.

kch · « **Reply #44 on:** 03/28/2009 04:01 pm »

Quote from: rdale on 03/28/2009 03:51 pm

Yep, check the graphic psloss posted above with the parts in bold, or the powerpoint that I linked.

Thanks!

rdale · « **Reply #45 on:** 03/28/2009 04:01 pm »

3/8ths scattered at 3500ft, overcast at 20000ft has broken up a bit to 7/8ths. Winds though still an issue, due south at 22kts sustained with gusts to 30kts just these past few minutes.

ziggyS · « **Reply #46 on:** 03/28/2009 04:17 pm »

Looks like NASA TV showed some of a weather briefing. Nice zoomed in satellite loop showing a cloud street right over the runway that must have been the worry. Slight shift in wind direction and maybe we're in business again.

rdale · « **Reply #47 on:** 03/28/2009 04:20 pm »

Not really the clouds, they've been close but never violated the rules. Winds are still the concern, but latest ob dropped the speeds dramatically (12 gusting to 26kts).

Ronsmytheiii · « **Reply #48 on:** 03/28/2009 04:30 pm »

rdale · « **Reply #49 on:** 03/28/2009 04:32 pm »

Sea breeze is visible on hi-res doppler radar, it's just now moving across the landing strip.

Ronsmytheiii · « **Reply #50 on:** 03/28/2009 04:35 pm »

positive trend!

rdale · « **Reply #51 on:** 03/28/2009 04:35 pm »

Winds have picked up just a bit again, sustained 16kts with gusts to 24kts but overall trending better. No change in clouds.

Wind vanes at south and central part of the strip are out of 150 degrees, but the north one is still 170*.

ItsyAndy · « **Reply #52 on:** 03/28/2009 04:38 pm »

If the sea breeze is reliable as they seem to know it will be... That could change the situation. or looks like.

rdale · « **Reply #53 on:** 03/28/2009 04:40 pm »

It's not quite a slam dunk - Patrick AFB has been on the "good side" of the sea breeze for a while but they have even stronger winds than KSC does.

rdale · « **Reply #54 on:** 03/28/2009 04:44 pm »

Weather would have been acceptable had they tried landing this time, and even better than forecast. That's the fun of this field

>>>KTTS 281738Z 15012G21KT 10SM SCT038 BKN200 27/22 A2986 RMK SLP112
3CU /3/ 7CS /5/ N1512/21 C1513/25 S1514/22=

rdale · « **Reply #55 on:** 03/28/2009 04:47 pm »

All 3 KSC sensors within limits, right down the runway at 150* with sustained 14kts gusting to 21kts. So strong, but no violations.

ItsyAndy · « **Reply #56 on:** 03/28/2009 04:49 pm »

Quote from: rdale on 03/28/2009 04:40 pm

It's not quite a slam dunk - Patrick AFB has been on the "good side" of the sea breeze for a while but they have even stronger winds than KSC does.

Cannot rely on the sea breeze then... I don't see such stable condition to take the risk, but of course they know better.

rdale · « **Reply #57 on:** 03/28/2009 05:03 pm »

1:55pm EDT - 3/8 at 3800ft, 7/8 at 20000ft. Winds 150* at 15kts gusting to 24kts. Peak wind of 28kts (but that was at 1:28pm)

rdale · « **Reply #58 on:** 03/28/2009 05:21 pm »

Clouds continue to thin - 2/8 at 3800ft and 7/8 at 20000ft. Winds 150 at 14kt G 23kt.

rdale · « **Reply #59 on:** 03/28/2009 05:45 pm »

Winds 140 at 12kts gusting to 22kts.

rdale · « **Reply #60 on:** 03/28/2009 05:59 pm »

Winds 150 at 15kts gusting to 23kts. Scattered clouds at 3800 and 4600 feet, broken deck at 20,000ft.

rdale · « **Reply #61 on:** 03/28/2009 06:09 pm »

Winds 160 at 15G22 kts, clouds have thickened just slightly at 4600ft.

ziggyS · « **Reply #62 on:** 03/28/2009 06:26 pm »

Brief cloud ceiling nearly got them
KTTS 281913Z 15016G23KT 10SM FEW038 SCT046 BKN200 26/21 A2983 RMK SLP101 2CU 1SC /3/ 7CS /5/ N1516/23 C1514/25 S1513/25
KTTS 281910Z 16016G23KT 10SM SCT038 SCT046 BKN200 26/21 A2984 RMK MDT CU S SLP105 3CU 1SC /4/ 7CS /6/ N1615/23 C1515/25 S1517/25
KTTS 281902Z 16015G22KT 10SM SCT038 BKN046 BKN200 26/21 A2984
KTTS 281855Z 15015G23KT 10SM SCT038 SCT046 BKN200 27/22 A2985 RMK SLP108 3CU 1SC /4/ 7CS /5/ N1515/23 C1513/23 S1515/22

rdale · « **Reply #63 on:** 03/28/2009 06:27 pm »

It was just a small percentage change, it wasn't going to cause them to lose sight of the runway.

Touchdown ob:

>>>KTTS 281913Z 15016G23KT 10SM FEW038 SCT046 BKN200 26/21 A2983 RMK
SLP101 2CU 1SC /3/ 7CS /5/ N1516/23 C1514/25 S1513/25=

robertross · « **Reply #64 on:** 03/30/2009 08:54 pm »

Just to end this thread on the high note, as they always are:

Thanks for the great job guys. Always great to follow along to get the inside track on the details.