Dr. Jeff Masters' WunderBlog

TD 16 organizing; Mexican landslide kills hundreds; hottest day ever in Los Angeles

Posted by: Dr. Jeff Masters, 7:25 PM GMT on September 28, 2010

The large area of low pressure centered just south of Cuba's Isle of Youth has developed enough of a well-defined circulation to be classified as Tropical Depression Sixteen, and is likely to become Tropical Storm Nicole by Wednesday. The depression has a very broad center, with little heavy thunderstorm activity near the center, and is this very dissimilar to the usual types of tropical depressions we see in the Atlantic. The large size, broad center, and lack of heavy thunderstorm activity near the center of TD 16 will limit the storm's ability to rapidly intensify. TD 16 resembles the "monsoon depressions" common in India's Bay of Bengal or the Western Pacific. A monsoon depression is similar to a regular tropical depression in the winds that it generates--about 30 - 35 mph near the outer edges (and usually stronger on the eastern side of the circulation.) Monsoon depressions have large, calm centers, and can evolve into regular tropical storms, if given enough time over water to develop a tight, closed circulation. Today's monsoon-like depression in the Caribbean was able to form because the atmospheric flow pattern of the Eastern Pacific has shifted eastwards into the Western Caribbean, bringing in the Eastern Pacific ITCZ (Intertropical Convergence Zone, a region of converging surface winds that creates a band of strong thunderstorms). This unusual flow pattern is forecast to remain in place for at least the next ten days.

An Air Force hurricane hunter aircraft has been flying at 700 feet in TD 16 since 1:30pm EDT, and has thus far found a central pressure of 999 mb. The strongest winds at flight level seen as of 3:20pm EDT were 32 mph, located about 100 miles east of the center of TD 16. Surface observations show that the strongest winds at any surface station continue to be at Buoy 42057, several hundred miles to the southeast of TD 16's center. Winds were 27 mph, gusting to 34 mph at 2:43pm EDT this afternoon. Rotation of TD 16 can be seen on radar loops out of Pico San Juan, Cuba, and well as satellite imagery. The heavy thunderstorms are currently quite disorganized, but a curved band is beginning to wrap around the north side of the center, signaling that TD 16 is growing more organized. TD 16 has brought torrential rains to the Cayman Islands, Jamaica, Cuba, and Honduras today.

Figure 1. Radar-estimated precipitation for South Florida and Cuba. TD 16 has brought 2 - 4 inches of rains to the region.

Forecast for TD 16
Because TD 16 is so large, it will take more time than a typical depression for it to spin up into a strong tropical storm. Given that the steering currents are expected to pull TD 16 north-northeastwards over Cuba and into South Florida and the western Bahamas on Wednesday, the storm lacks sufficient time over water to be any stronger than a 50 mph tropical storm for Florida. TD 16 is organizing pretty slowly this afternoon, and I think the top winds in Southeast Florida are most likely to be in the 25 - 35 mph range on Wednesday. Winds are likely to be stronger in the western Bahamas, perhaps 30 - 40 mph, since they will be in the stronger right front quadrant of the storm. By the time TD 16 makes landfall in South Carolina or North Carolina on Thursday morning, it could be as strong as a 50 - 60 mph tropical storm. However, wind shear will increase sharply on Thursday as TD 16 gets caught in an upper-level trough of low pressure, and NHC is giving TD 16 only a 9% chance of making it to hurricane strength before it becomes an extratropical storm on Thursday. The primary danger from TD 16 is not wind, but heavy rainfall. A potent upper-level low and stationary front over the U.S. East Coast have been pulling moist, tropical air from the Caribbean northwards over the past few days, bringing heavy rains that have saturated the soils. This is called a Predecessor Rain Event, or PRE, since it comes in advance of the actual rain shield of the storm. (A PRE from Hurricane Karl brought southern Wisconsin the heavy rain that caused the levee on the Wisconsin River to fail yesterday.) Wilmington, NC received 10.33 inches of rain yesterday, its second greatest one-day rainfall since record keeping began in 1871. Only the 13.38" that fell during Hurricane Floyd on September 15, 1999 beat yesterday's rainfall total. With TD 16 expected to bring another 6 - 8 inches of rain to the region later this week, serious flooding is likely, and flash flood watches are posted for the North Carolina/ South Carolina border region. South Florida is also under a flood watch, for 3 - 5 inches of rain. Flooding rains of similar magnitude can also be expected in Cuba, the Cayman Islands, and the Western Bahamas through Wednesday night. Both the GFDL and HWRF models are predicting that TD 16 will dump rains in excess of eight inches along narrow portions of its path in eastern Florida, South Carolina, and North Carolina.

Figure 2. Forecast precipitation for the 5-day period from 8am today through 8am EDT Sunday, October 3, 2010. Image credit: NOAA Hydrometeorological Prediction Center.

Up to 1,000 feared dead in Mexican landslide
Mexico has taken the brunt of the devastation from the hurricane season of 2010, thanks to the landfalls of this year's two deadliest and most damaging storms, Hurricanes Alex and Karl. But Mexico's worst blow yet hit this morning, when heavy rains from the remnants of Tropical Storm Matthew triggered a landslide in Mexico's mountainous Oaxaca state that buried as many as 1,000 people in Santa Maria Tlahuitoltepec, a town of 9,000. Rescuers have not reached the area yet, but hundreds are feared dead in the 300 homes that were buried by the early morning landslide. Matthew hit Belize on Saturday as a minimal tropical storm with 40 mph winds, and dissipated Sunday over southern Mexico. However, Matthew's remains stalled out over the region of Mexico that had already received torrential rains from Hurricane Karl, which hit on September 18. Satellite estimates of Matthew's rains over southern Mexico (Figure 3) show that a foot of rain may have fallen in the landslide area. Matthew's remains still linger over the region, but are probably only capable of bringing 1 - 2 inches of additional rain through Thursday.

Figure 3. Satellite-estimated rainfall for the five-day period ending at 8pm EDT Monday September 27, 2010. The dark green colors show where rainfall amounts of 300 mm (about 12 inches) fell, due to the remnants of Tropical Storm Matthew. Image credit: Navy Research Lab, Monterey.

Elsewhere in the tropics
Once TD 16 moves out of the Caribbean, the GFS model predicts that the Western Caribbean will "reload" and produce another tropical disturbance capable of developing into a tropical depression early next week. The GFS also predicts a tropical or subtropical storm will form over the Bahamas late this week, and move north-northeast along the U.S. East Coast, missing hitting land. The NOGAPS model hints at the Bahamas storm, and also predicts development of a tropical wave a few hundred miles northeast of the Lesser Antilles Islands, about a week from now.

Hottest day in Los Angeles history
The mercury hit a blistering 113°F (45.0°C) at 12:15 pm PDT yesterday in downtown Los Angeles, making it the hottest day in Los Angeles history. It may have gotten hotter, but the thermometer broke shortly after the record high was set. The previous record in Los Angeles was 112°F set on June 26, 1990; records go back to 1877. Nearby Long Beach tied its hottest all-time temperature yesterday, with a scorching 111°F. And Christopher C. Burt, our new featured blogger on weather records, pointed out to me that a station in the foothills at 1260' elevation near Beverly Hills owned by the Los Angeles Fire Department hit 119°F yesterday--the hottest temperature ever measured in the Los Angeles area, tying the 119°F reading from Woodland Hills on July 22, 2006. Yesterday's record heat was caused by an unusually large and intense upper-level high pressure system centered over Nevada that generated winds blowing from the land to the ocean, keeping the ocean from exerting its usual cooling influence. Remarkably, Los Angeles had its second coldest summer on record this year, and temperatures just five days ago were some the coldest September temperatures in the region for the past 50 years.

The remarkable summer of 2010
Wunderground is pleased to welcome a new featured blogger--weather historian Christopher C. Burt. Chris is a leading expert in the U.S. on weather records, and is author of the world's most popular weather records book published to date, Extreme Weather: A Guide and Record Book. He's spent a lifetime collaborating with like-minded individuals from around the world, and no one--including official sources such as the National Climatic Data Center and the National Extremes Committee--has done as thorough a job correlating the various weather records available and determining the most accurate extreme values of such. Each month he'll be reporting on the notable records for heat, cold, and precipitation set world-wide, and his first post takes a look at the remarkable summer of 2010. It's great to have someone like Chris who stays on top of weather extremes, and I hope you'll pay a visit to his blog and welcome him to the wunderground site!

"Hurricane Haven" airing this afternoon
My live Internet radio show, "Hurricane Haven", will be airing again today at 4pm EDT. The call in number is 415-983-2634, or you can post a question to broadcast@wunderground.com. Be sure to include "Hurricane Haven question" in the subject line.

Today's show will be about 30 minutes, and you can tune in at http://www.wunderground.com/wxradio/wubroadcast.h tml. The show will be recorded and stored as a podcast.

I'll have updates as the situation with TD 16 requires.

Jeff Masters

Alone again, naturally (ftogrf)

Lonely Seagull, as a storm associated with TD 16 is approaching.

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2201. JupiterFL 11:21 AM GMT on September 29, 2010
Quoting HCW: 3.77 inches of rain since midnight reported by a storm spotter in Jupiter,FL My grass is going to be green next week! Member Since: August 10, 2005 Posts: 0 Comments: 2146

2202. GeoffreyWPB 11:22 AM GMT on September 29, 2010
Member Since: September 10, 2007 Posts: 0 Comments: 9107

2203. aislinnpaps 11:22 AM GMT on September 29, 2010
Off to teach my little angels. Have a wonderful Wednesday everyone! Member Since: August 22, 2009 Posts: 0 Comments: 2438

2204. TampaSpin 11:22 AM GMT on September 29, 2010
On one serious note for those East Coast Florida people. Still take this serious as you still could loose power from down lines. I know in Tampa i lost power for 4 freaking days in 2004 from downgraded Hurricanes that was slight stronger than this. Lose of power is no fun for that extended period of time. TRUST ME! Member Since: September 2, 2007 Posts: 175 Comments: 19747

2205. HCW 11:23 AM GMT on September 29, 2010
Quoting JupiterFL: My grass is going to be green next week! If I paypal you some money can you send some of that much needed rain to South AL ? Only .33 in the last 49 days Member Since: August 10, 2002 Posts: 0 Comments: 1280

2206. kmanislander 11:25 AM GMT on September 29, 2010
Good morning everyone The Caribbean has a decidedly nasty look to it this morning and the pressure now is 996.3 mbs, much lower than yesterday when TD 16 was in this neighbourhood. Another system may be trying to organize in the NW Caribbean IMO Member Since: August 19, 2006 Posts: 0 Comments: 14939

2207. Saltydogbwi1 11:27 AM GMT on September 29, 2010
Quoting WxLogic: Interesting enough not sure why NHC says: ...CENTER OF THE DEPRESSION EMERGING OVER THE FLORIDA STRAIT...HEAVY RAINS SPREADING ACROSS FLORIDA KEYS AND SOUTH FLORIDA... Based on SFC obs... the center of this TD appears to be further S, I've marked the spot on the chart below: pressures here in grand cayman this morning 995.9mb and falling! Member Since: October 21, 2009 Posts: 0 Comments: 276

2208. TampaSpin 11:27 AM GMT on September 29, 2010
Quoting HCW: Couple of hours over the Gulf Stream could quickly change things Quoting islander101010: agree dont underestimate nature NOPE....won't make that big of differnce IMO.....not when you got 25-30kts of Shear....i don't see anyway this develops into Nicole and even if NHC does upgrade if before it moves into Florida it will be at the very mininumal strenght IMO. Member Since: September 2, 2007 Posts: 175 Comments: 19747

2209. blsealevel 11:28 AM GMT on September 29, 2010
Member Since: August 23, 2008 Posts: 0 Comments: 1916

2210. kmanislander 11:29 AM GMT on September 29, 2010
Quoting Saltydogbwi1: pressures here in grand cayman this morning 995.9mb and falling! yeah. The Little Cayman buoy has 996.3 and I have the same in South Sound. Something else getting going it seems. South wind @20 mph Member Since: August 19, 2006 Posts: 0 Comments: 14939

2211. caymanlurker 11:29 AM GMT on September 29, 2010
Quoting kmanislander: Good morning everyone The Caribbean has a decidedly nasty look to it this morning and the pressure now is 996.3 mbs, much lower than yesterday when TD 16 was in this neighbourhood. Another system may be trying to organize in the NW Caribbean IMO Morning Kman; agree with you. Strange, no named storm, yet it is difficult to take your eyes off this area these last 36 hrs. Plenty more rain today and all my children are concerned about is whether the weather will mean Prep closes early again! LOL Member Since: September 3, 2009 Posts: 0 Comments: 22

2212. hunkerdown 11:30 AM GMT on September 29, 2010
Quoting TampaSpin: On one serious note for those East Coast Florida people. Still take this serious as you still could loose power from down lines. I know in Tampa i lost power for 4 freaking days in 2004 from downgraded Hurricanes that was slight stronger than this. Lose of power is no fun for that extended period of time. TRUST ME! Palm Beach County here...i just don't see those the lines coming down from winds in the 10mph category (and I don't see any reports from the Keys up with any winds to speak of). Member Since: August 15, 2008 Posts: 0 Comments: 2514

2213. TampaSpin 11:30 AM GMT on September 29, 2010
Quoting kmanislander: Good morning everyone The Caribbean has a decidedly nasty look to it this morning and the pressure now is 996.3 mbs, much lower than yesterday when TD 16 was in this neighbourhood. Another system may be trying to organize in the NW Caribbean IMO Models have been saying that all week KMan. If that happens and i talked about that on my blog that it could be a more Westerly moving system as High Pressure builds back in behind TD16 Member Since: September 2, 2007 Posts: 175 Comments: 19747

2214. kmanislander 11:31 AM GMT on September 29, 2010
Quoting caymanlurker: Morning Kman; agree with you. Strange, no named storm, yet it is difficult to take your eyes off this area these last 36 hrs. Plenty more rain today and all my children are concerned about is whether the weather will mean Prep closes early again! LOL LOL. My daughter was doing the rain dance last night and it appears to have worked ! Member Since: August 19, 2006 Posts: 0 Comments: 14939

2215. wunderkidcayman 11:31 AM GMT on September 29, 2010
Hey guys what I still don't get i8s that the pressures are reading 995.1mbs and falling wind have been blowing at a good speed gusting higher at times the waves are higher and very murky and right now pouring rain Member Since: June 13, 2009 Posts: 2 Comments: 5381

2216. Saltydogbwi1 11:31 AM GMT on September 29, 2010
Quoting kmanislander: Good morning everyone The Caribbean has a decidedly nasty look to it this morning and the pressure now is 996.3 mbs, much lower than yesterday when TD 16 was in this neighbourhood. Another system may be trying to organize in the NW Caribbean IMO Morning Kman I couldnt believe the pressure reading this morning had to take another slug of coffee and look again but your reading confirms mine! lol I agree with you on the possibility of something trying to get going in the neighbourhood. Member Since: October 21, 2009 Posts: 0 Comments: 276

2217. blsealevel 11:32 AM GMT on September 29, 2010
3 days out 4 days out Member Since: August 23, 2008 Posts: 0 Comments: 1916

2220. TampaSpin 11:33 AM GMT on September 29, 2010
Quoting hunkerdown: Palm Beach County here...i just don't see those the lines coming down from winds in the 10mph category (and I don't see any reports from the Keys up with any winds to speak of). Yep, i agree that our Afternoon Thunderstorms might be stronger than this. I know some thought school should have been called off. That does not need to happen either IMO. Member Since: September 2, 2007 Posts: 175 Comments: 19747

2221. Vince2005 11:33 AM GMT on September 29, 2010
I think 16L tropical depression, tropical storm is worth because the reconnaissance flight entered tropical storm winds of 35 kt. Member Since: August 18, 2010 Posts: 0 Comments: 42

2222. kmanislander 11:33 AM GMT on September 29, 2010
Quoting TampaSpin: Models have been saying that all week KMan. If that happens and i talked about that on my blog that it could be a more Westerly moving system as High Pressure builds back in behind TD16 It is pretty wild outside now. The wind is gusting to 27 mph and torrential rain ! Member Since: August 19, 2006 Posts: 0 Comments: 14939

2223. whepton3 11:34 AM GMT on September 29, 2010
Quoting Becca36: Good morning all. Just coming out of lurking for a bit. Here in West Boca we just have had lots of heavy rain but no wind to speak of yet. I'm not surprised that all the schools are open, I just hope the wind doesn't reach the magic 40mph number for the school buses later this afternoon. West Boca as well... not getting any wind hardly at all... they keep saying it should pick up a bit later... I was a little surprised about the schools too... already saw some flooding on TV here in town. Member Since: July 19, 2010 Posts: 0 Comments: 637

2225. Grothar 11:35 AM GMT on September 29, 2010
Member Since: July 17, 2009 Posts: 56 Comments: 19488

2226. srada 11:35 AM GMT on September 29, 2010
Good Morning Just saw Bill Reed on TWC and he said that TD16 will strength to TS strength after exiting Florida..the Carolinas are looking at real bad conditions for the next couple of days..Its pouring here in wilmington from the first low pressure and now we are going to get smack with a TS right behind it..Flash Flood Warning already issue here..12 inches of rain so far since Monday Member Since: August 17, 2006 Posts: 1 Comments: 772

2227. caymanlurker 11:36 AM GMT on September 29, 2010
Quoting Saltydogbwi1: couldnt believe the pressure reading this morning had to take another slug of coffee and look again but your reading confirms mine! lol I agree with you on the possibility of something trying to get going in the neibourhood. wow and as if to prove a point, a branch on a tree outside my house has just blown off. Lashing down and very gusty!! Member Since: September 3, 2009 Posts: 0 Comments: 22

2228. kmanislander 11:36 AM GMT on September 29, 2010
Wind in the 30s now. Just saw 36 mph Member Since: August 19, 2006 Posts: 0 Comments: 14939

2229. surfmom 11:37 AM GMT on September 29, 2010
NW CARIB - AHA!!!!! -Kman - got my attention 1,2,3 this AM Still curious about the measurement discrepancies you mentioned last night - Yes, I woke up with that on my mind - is it a matter of calibration & when maps are shown w/ wrong inform -- does that only affect the amateur - are there repercussions or was the difference too small to matter (Only if you have time) Member Since: July 18, 2007 Posts: 30 Comments: 26538

2230. stormwatcherCI 11:37 AM GMT on September 29, 2010
Good morning everyone. Well, still coming down in buckets and gusty winds. Power went off in East End last night around 10:00 and just came back on about 15 minutes ago. Looks like another nasty day. Member Since: October 9, 2008 Posts: 0 Comments: 8038

2231. Grothar 11:38 AM GMT on September 29, 2010
Member Since: July 17, 2009 Posts: 56 Comments: 19488

2232. Patrap 11:38 AM GMT on September 29, 2010
Member Since: July 3, 2005 Posts: 370 Comments: 111244

2233. blsealevel 11:38 AM GMT on September 29, 2010
Link Member Since: August 23, 2008 Posts: 0 Comments: 1916

2234. WxLogic 11:39 AM GMT on September 29, 2010
One thing is for sure... Jamaica is getting owned. Member Since: August 14, 2008 Posts: 4 Comments: 4666

2235. surfmom 11:39 AM GMT on September 29, 2010
2218 - love those Aerial pics CAT5 : ) Member Since: July 18, 2007 Posts: 30 Comments: 26538

2236. nash28 11:39 AM GMT on September 29, 2010
Quoting srada: Good Morning Just saw Bill Reed on TWC and he said that TD16 will strength to TS strength after exiting Florida..the Carolinas are looking at real bad conditions for the next couple of days..Its pouring here in wilmington from the first low pressure and now we are going to get smack with a TS right behind it..Flash Flood Warning already issue here..12 inches of rain so far since Monday Morning Srada. Yeah, it's gonna be an ugly couple of days for coastal SC/NC. They are calling for upwards of 9 inches of rain here in the Charleston area. That's way too much water after the rain we had a couple of days ago. Member Since: July 11, 2005 Posts: 190 Comments: 16972

2237. Patrap 11:39 AM GMT on September 29, 2010
Member Since: July 3, 2005 Posts: 370 Comments: 111244

2238. augfan 11:40 AM GMT on September 29, 2010
Quoting TampaSpin: On one serious note for those East Coast Florida people. Still take this serious as you still could loose power from down lines. I know in Tampa i lost power for 4 freaking days in 2004 from downgraded Hurricanes that was slight stronger than this. Lose of power is no fun for that extended period of time. TRUST ME! It's the trees. If they don't fall, shouldn't be much of a outage problem. Lots of trees, pines mostly, have been removed since Floyd and especially Frances which really nailed us. Still, everybody should have a gen big enough to run a frig -about 1500 watts starting needed for the capacitor. Member Since: September 6, 2009 Posts: 0 Comments: 56

2239. robj144 11:40 AM GMT on September 29, 2010
Quoting TampaSpin: On one serious note for those East Coast Florida people. Still take this serious as you still could loose power from down lines. I know in Tampa i lost power for 4 freaking days in 2004 from downgraded Hurricanes that was slight stronger than this. Lose of power is no fun for that extended period of time. TRUST ME! We won't loose power... it's on pretty tight here. Just kidding. :) Member Since: August 19, 2008 Posts: 0 Comments: 814

2240. JRRP 11:40 AM GMT on September 29, 2010
Member Since: August 16, 2007 Posts: 0 Comments: 4303

2241. weatherwatcher12 11:40 AM GMT on September 29, 2010
Quoting WxLogic: One thing is for sure... Jamaica is getting owned. Everything is closed today all schools and I imagine businesses too. Member Since: May 16, 2009 Posts: 1 Comments: 1231

2243. ChillinInTheKeys 11:41 AM GMT on September 29, 2010
Quoting kmanislander: Wind in the 30s now. Just saw 36 mph Looks like you may have another surface low to your southwest. Bouy 42057 Wind Direction (WDIR): SSW ( 210 deg true ) Wind Speed (WSPD): 27.2 kts Wind Gust (GST): 35.0 kts Wave Height (WVHT): 12.1 ft Dominant Wave Period (DPD): 8 sec Average Period (APD): 6.5 sec Atmospheric Pressure (PRES): 29.55 in Pressure Tendency (PTDY): +0.00 in ( Steady ) Air Temperature (ATMP): 83.7 °F Water Temperature (WTMP): 84.9 °F Dew Point (DEWP): 75.4 °F Heat Index (HEAT): 91.8 °F Bouy 42056 Wind Direction (WDIR): NNW ( 330 deg true ) Wind Speed (WSPD): 15.5 kts Wind Gust (GST): 17.5 kts Wave Height (WVHT): 4.9 ft Dominant Wave Period (DPD): 6 sec Average Period (APD): 4.7 sec Mean Wave Direction (MWD): NNE ( 28 deg true ) Atmospheric Pressure (PRES): 29.48 in Pressure Tendency (PTDY): +0.01 in ( Rising ) Air Temperature (ATMP): 83.3 °F Water Temperature (WTMP): 85.3 °F Dew Point (DEWP): 76.3 °F Heat Index (HEAT): 91.9 °F Member Since: August 18, 2008 Posts: 0 Comments: 448

2244. A4Guy 11:42 AM GMT on September 29, 2010
Quoting kmanislander: Wind in the 30s now. Just saw 36 mph Certainly looks like whatever is being left behind in the Carib is worse than what's coming out across the FL Straits! Member Since: June 23, 2006 Posts: 0 Comments: 646

2245. kmanislander 11:43 AM GMT on September 29, 2010
Quoting surfmom: NW CARIB - AHA!!!!! -Kman - got my attention 1,2,3 this AM Still curious about the measurement discrepancies you mentioned last night - Yes, I woke up with that on my mind - is it a matter of calibration & when maps are shown w/ wrong inform -- does that only affect the amateur - are there repercussions or was the difference too small to matter (Only if you have time) Good morning. Tough one to answer. I do know this though, my barometer and the one at the airport read the same. This morning, several of us have similar readings and the buoy at Little Cayman also has a 996 reading. The surface map I posted last night made no sense at all and I have no explanation for it. I had always assumed the isobars were based upon actual surface data but again the pressure distribution we saw did not match mulitple data sets we knew to be correct. The discrepancy was more than just negligeble. There is a huge difference between 1004 and 997 mbs. Maybe someone should send an email querying this. Member Since: August 19, 2006 Posts: 0 Comments: 14939

2246. kmanislander 11:44 AM GMT on September 29, 2010
Serious lightning here now. Getting off the computer for a bit. Member Since: August 19, 2006 Posts: 0 Comments: 14939

2247. Saltydogbwi1 11:44 AM GMT on September 29, 2010
Quoting stormwatcherCI: Good morning everyone. Well, still coming down in buckets and gusty winds. Power went off in East End last night around 10:00 and just came back on about 15 minutes ago. Looks like another nasty day. I live in spotts was up late and about 1:45am saw a big flash to the east dunno if it was lightning or a transformer going had a power spike our UPS started beeping at the exact moment of the flash didnt hear thunder and no other lightning at the time. Ddont know if what I saw added to the problem of your power outage. Member Since: October 21, 2009 Posts: 0 Comments: 276

2248. srada 11:45 AM GMT on September 29, 2010
Quoting nash28: Morning Srada. Yeah, it's gonna be an ugly couple of days for coastal SC/NC. They are calling for upwards of 9 inches of rain here in the Charleston area. That's way too much water after the rain we had a couple of days ago. It definetly is! Stay safe in Charleston! Member Since: August 17, 2006 Posts: 1 Comments: 772

2249. weatherwatcher12 11:45 AM GMT on September 29, 2010
Damage and flooding is being reported people trapped and 3 bridges have collapsed. Link Member Since: May 16, 2009 Posts: 1 Comments: 1231

2250. Grothar 11:46 AM GMT on September 29, 2010
Navy site is interesting. It shows the convection building quite fast around the center. Member Since: July 17, 2009 Posts: 56 Comments: 19488

2251. nash28 11:46 AM GMT on September 29, 2010
Stay safe Kman. Member Since: July 11, 2005 Posts: 190 Comments: 16972

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