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Rainfall Collection from SC

| 4:02 pm October 4, 2015

Saw this in my rambling around the Internet today, and I thought I would share it with blog readers. Incredible rainfall amounts with 21.04″ in near Huger, SC, 24.23″ near Mount Pleasant, SC, 22.47″ near Shadowmoss, SC, and 20.37″ near Charleston to name some of the highest amounts.

And to make matters worse, there are reports of a dam collapse at Semmes Lake which is at Fort Jackson, SC, near Columbia, SC. No idea of the size of the dam, but that’s just one more thing the DO NOT NEED!!


NOUS42 KCHS 041540

1140 AM EDT SUN OCT 4 2015


********************STORM TOTAL RAINFALL********************

                     RAINFALL           OF
                     /INCHES/   MEASUREMENT


   2 SE ALLENDALE        2.61   600 AM 10/04  COCORAHS

   4 N HILTON HEAD ISLA  5.77   700 AM 10/04  COCORAHS
   4 NNE BEAUFORT        5.47   839 AM 10/04  COCORAHS
   3 N BEAUFORT          5.30   700 AM 10/04  COCORAHS
   2 NNE BLUFFTON        2.15   700 AM 10/04  COCORAHS
   6 WNW BLUFFTON        2.04   700 AM 10/04  COCORAHS

   3 NNE HUGER          21.04   900 AM 10/04  USGS SITE
   1 NNW LIMERICK       19.71   900 AM 10/04  RAWS
   5 NNW HUGER          18.32   429 AM 10/04  STORM TOTAL
   4 E MONCKS CORNER    17.02   800 AM 10/04  COCORAHS
   1 SSW WANDO          16.90   800 AM 10/04  COCORAHS
   3 NW BONNEAU         16.71  1030 AM 10/04  COCORAHS
   3 NE MONCKS CORNER   16.17   700 AM 10/04  COCORAHS
   1 SSW DANIEL ISLAND  15.67   830 AM 10/04  COCORAHS
   1 SSE HANAHAN        15.30   900 AM 10/04  COCORAHS
   7 SW MONCKS CORNER   15.08   800 AM 10/04  COCORAHS
   1 N HANAHAN          14.39   945 AM 10/04  COCORAHS
   3 NE SUMMERVILLE     13.75   900 AM 10/04  COCORAHS
   4 NE SUMMERVILLE     13.36   700 AM 10/04  COCORAHS
   5 WNW GOOSE CREEK    12.96   700 AM 10/04  COCORAHS
   5 E GOOSE CREEK      12.79   900 AM 10/04  USGS SITE

   6 NE MOUNT PLEASANT  24.23   700 AM 10/04  COCORAHS
   3 SSW SHADOWMOSS     22.47   900 AM 10/04  COCORAHS
   5 SSE CHARLESTON     20.37   800 AM 10/04  COCORAHS
   2 S CHARLESTON       17.04   700 AM 10/04  COCORAHS
   2 NNW GARRIS LANDING 17.03   427 AM 10/04  STORM TOTAL
   3 ENE CHARLESTON     16.88   900 AM 10/04  COCORAHS
   1 E CHARLESTON       16.84   700 AM 10/04  COCORAHS
   CHARLESTON AIRPORT   16.61   900 AM 10/04  ASOS
   6 NW CHARLESTON      16.52   800 AM 10/04  COCORAHS
   NWS CHARLESTON SC    16.49   700 AM 10/04  COCORAHS
   3 NE CHARLESTON      16.46   700 AM 10/04  COCORAHS
   4 ESE NORTH CHARLEST 16.32   823 AM 10/04  COCORAHS
   2 ESE MOUNT PLEASANT 16.16   711 AM 10/04  COCORAHS
   2 NE JOHNS ISLAND    15.91   730 AM 10/04  COCORAHS
   2 NE KIAWAH ISLAND   15.69   800 AM 10/04  COCORAHS
   4 N NORTH CHARLESTON 15.33   900 AM 10/04  COCORAHS
   3 NNE CHARLESTON     15.14   745 AM 10/04  COCORAHS
   5 SW AWENDAW         15.02   723 AM 10/04  RAWS
   CHARLESTON           14.74   930 AM 10/04  OFFICIAL NWS OBS
   5 WNW CHARLESTON     14.74   600 AM 10/04  COCORAHS
   1 WSW MOUNT PLEASANT 14.37   800 AM 10/04  COCORAHS
   1 SW MOUNT PLEASANT  14.26   640 AM 10/04  COCORAHS
   CHARLESTON INTERNATI 14.22   756 AM 10/04  ASOS
   2 SSW WADMALAW ISLAN 14.02   800 AM 10/04  COCORAHS
   1 ESE MCCLELLANVILLE 13.88   800 AM 10/04  COCORAHS
   2 WSW CHARLESTON     13.88   700 AM 10/04  COCORAHS
   3 E MOUNT PLEASANT   13.78   700 AM 10/04  COCORAHS
   ESE MCCLELLANVILLE   13.78   630 AM 10/04  COCORAHS
   2 WNW RAVENEL        12.02   700 AM 10/04  COCORAHS
   2 W MEGGETT          11.77   745 AM 10/04  COCORAHS
   2 S MOUNT PLEASANT   11.70   800 AM 10/04  COCORAHS

   3 ENE WALTERBORO      7.87   800 AM 10/04  COCORAHS
   2 ENE WALTERBORO      7.57   707 AM 10/04  RAWS
   3 NNW WALTERBORO      7.37   700 AM 10/04  COCORAHS
   3 SW LODGE            6.31   700 AM 10/04  COCORAHS
   8 NE YEMASSEE         5.29   700 AM 10/04  COCORAHS
   ESE SMOAKS            5.08   600 AM 10/04  COCORAHS

   3 NW SUMMERVILLE     17.23   700 AM 10/04  COCORAHS
   1 SSW SUMMERVILLE    15.86   800 AM 10/04  COCORAHS
   2 N SUMMERVILLE      15.16   700 AM 10/04  COCORAHS
   2 W SUMMERVILLE      14.65   700 AM 10/04  COCORAHS
   7 S RIDGEVILLE       13.62   700 AM 10/04  COCORAHS
   SUMMERVILLE 4W       14.75   700 AM 10/04  CO-OP OBSERVER

   1 SW HAMPTON          3.19   700 AM 10/04  COCORAHS
   2 SSW BRUNSON         2.16   700 AM 10/04  COCORAHS


   11 WSW SAVANNAH       2.40   900 AM 10/04  COCORAHS

   MILLHAVEN             2.22   700 AM 10/04  USGS
   1 SSE NEWINGTON       2.07   700 AM 10/04  COCORAHS



Radar View of Joaquin

| 3:16 pm October 4, 2015

While we are mostly interested in the weather in Central Alabama, it’s always interesting to peek in on other places that are having weather. And let’s be honest, our interest is usually piqued when the weather in those other locations is bad. So today there is a lot of interest in South Carolina with their epic flooding and in Bermuda as Hurricane Joaquin slips by the island just to the west.

So I thought blog viewers might be interested in the radar view of Joaquin from the Doppler radar located at the L.F.Wade International Airport in Bermuda. The radar is an S-Band Meteor 1500S built by AMS Gematronik purchased by the Department of Airport Operation and is operated by the Bermuda Weather Service.

Bermuda radar view of Joaquin

As you might imagine, the weather in Bermuda is horrible. This afternoon, about 90 minutes ago, they reported an ESE wind at 39 mph gusting to 51 mph. Highest gust this afternoon has been 55 mph. The pressure has been falling all afternoon as Joaquin traverses the ocean just west of Bermuda and the latest report was 29.36 inches or 994 millibars.

Looking at the radar image, it appears Joaquin should be due west of Bermuda in about 2 to 3 hours with the eastern most eye wall about 80 km from the radar site.


PS I updated this to include a satellite image of Joaquin with Bermuda marked on the map (small black mark just east of Joaquin) for some perspective.

Screen Shot 2015-10-04 at 3.36.02 PM


Clouds Hang Tough, But Mainly Dry

| 2:59 pm October 4, 2015


The upper low that is causing historic and catastrophic flooding in South Carolina is pushing eastward out of southern Georgia this afternoon. Some parts of the Palmetto State have received over twenty inches of rain in the past few days. One COCORaHS observer near Mount Pleasant SC, near Charleston, has received over 24 inches of rain in the past four days. There are numerous reports of life threatening flooding across South Carolina, including dam failures, washed out bridges and building collapses.

Nothing like that here, although the moisture wrapping around the low is he;ping to enhance the clouds across our area. Other moisture has been wrapping down from the north and covers West Central Alabama and much of Mississippi. In between, some sinking air on the left side of the low has allowed for some clearing. In areas that have seen more clearing, some stratocumulus clouds were forming under the cold temperatures aloft, which make for slight instability.

Not enough for showers though. And the only precipitation has been some light rain over Northeast Alabama.

Temperatures are in the upper 60s to lower 70s.

Expect increasing sunshine as we head into Monday. Temperatures will be heating up as well and we should see a seasonable, dry week ahead.

Hurricane Joaquin is 125 miles west southwest of Bermuda at this hour. Top winds are still 105 mph, making it a Category Two hurricane. Winds have gusted to 55 mph on the island. The barometer is down to 29.35. Hurricane warnings are in effect, but I think the island may escape without officially measuring hurricane force winds.


South Carolina Flooding

| 11:56 am October 4, 2015

Twitter and Facebook are filled with pictures of the flooding which is going on in South Carolina this morning. Once again the NWS offices in South Carolina have prepared a map of that state from actual rainfall observations received through 7 am today.


The area shown in red up to purple represents rainfall values for the previous 96 hours of 10 inches plus and runs roughly from Columbia southeastward to the coast just northeast of Charleston. And unfortunately the rain continues to fall!


This is the image from the Columbia, SC, NWS radar taken at 11:38 am and rain runs in a wide band from Columbia slightly south of east to Myrtle Beach. Motion of these echoes was toward the west. So the flooding problems for South Carolina are just going to get worse. And keep in mind, while the initial flooding problems are coming from what I would term flash flooding, the problem is going to last for days and days because all of this water has got to go into the larger rivers which will create additional flooding problems for some time to come.



Improving Weather Ahead

| 8:18 am October 4, 2015

After a period of several days with rather dreary, cloudy, cool weather, there are signs of improving weather ahead. But we’ll have to endure at least one more day of that dreary, cloudy, cool weather before sunshine returns. By the way, the observation site at the Birmingham airport yesterday recorded a high of only 59 degrees which was exactly 20 degrees below the 30-year average for October 3rd. That pesky closed upper low that has been producing the dreary conditions has moved a little, positioned this morning over South Georgia/North Florida while a surface low was hugging the coast of South Carolina. It is expected that all of these will move eastward away from the Southeast US on Monday allowing our weather to improve and the rain to gradually end for South Carolina.

In the tropical Atlantic, Bermuda was bracing for Hurricane Joaquin which was moving north with a slight turn to a more north-northeast track. This will take the center of the category 3 hurricane very close to the western shore of Bermuda where a hurricane warning was in effect. Joaquin should turn more northeast late Monday and speed up as it gets caught up in the faster westerly flow. It will transition into a post-tropical storm on Wednesday. Two other areas of disturbed weather were under the watchful eye of the hurricane center, but neither was expected to develop over the next several days.


Flash flood watches and warnings are in effect today into Monday for much of South Carolina. Be sure to check out the video with some graphics on the rainfall so far in South Carolina where a historic flooding event is unfolding.


The weather will also be improving at the beach. Beach goers will see partly sunny days for Destin and Panama City Beach with a few scattered showers today; there is only a small risk of a shower for Pensacola and Gulf Shores where there will be a good supply of sunshine. The new work week at the beach looks dry and pleasant for the entire Central Gulf Coast with highs approaching 80 degrees. You can see the complete Gulf Coast 7 Day Planner here. The Gulf Coast Beach Forecast is presented by Gulf Shores Plantation by Mandoki Hospitality Vacation Rentals. Escape to Gulf Shores Plantation where memories last a lifetime.

While we watch the upper low over South Georgia move out into the Atlantic, it will replaced over the Southeast US with an upper ridge which should provide dry and sunny weather for us through much of the week ahead. Look for highs to climb back into the lower 80s from Tuesday through Friday. While we will be impacted by an upper ridge, we’ll also be watching the evolution of closed low coming out of southern California reaching the Big Bend area of Texas by Friday. While the closed low does that, it will detach from the trough that will be moving across the Great Lakes area. This will produce a band of showers from the Middle Mississippi River Valley northward into the Great Lakes that is forecast to move off New England by Saturday. While we had model disagreement yesterday, the European and GFS are now in tune with both models keeping the Southeast US dry as the upper low hangs back in the Southwest US. Still this is over 5 days out, so there is time for this scenario to change – maybe several times – but confidence is higher today since the models are so similar in their solutions.

The weather pattern remains pretty active with another strong trough coming across the northern US in the 13th/14th time frame with most of the energy with that trough staying north of us. But by the 18th and into the 19th, the GFS is projecting a closed low over the eastern Great Lakes with a substantial trough extending southward into the Gulf. This scenario is likely to bring a rain event to the Southeast US followed by some unseasonably chilly weather with a strong northwesterly flow aloft.


James Spann will have the next edition of the Weather Xtreme Video here on Monday morning. Don’t forget that you can check back here for updates on Central Alabama’s weather.



Cool & Cloudy Saturday

| 2:19 pm October 3, 2015

10-3-2015 2-09-06 PM

The weather today is cool, cloudy, dreary, with light rain showers. Temperatures are struggling to climb out of the 50s and it feels and looks more like late November across the state. This may be our coolest afternoon high since back in March, we will just have to wait and see though. Light rain continues to move from east to west across the state and this will continue into the overnight hours. We are not expecting anything to intense, but if you are heading out and about, have the rain gear.

10-3-2015 2-12-30 PM

The most powerful storm in the Atlantic this hurricane season, Joaquin is a high end category 4 hurricane. Maximum sustained winds of 155mph with higher gusts. Thankfully, the storm is beginning to race off towards the northeast at 18mph and will not be directly impacting the U.S.

10-3-2015 2-14-21 PM

For Sunday, what you see is what we expect…another cloudy day, with light showers, but we should see warmer temps with 70s expected. We are still not expecting much in the way of sunshine, so another gray day is expected. However, we may see a few peeks of sun, but don’t expect much of it.