jrips27 Posted July 12, 2011 Share Posted July 12, 2011 Severe Thunderstorm Warning for downtown Atlanta... BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 332 PM EDT TUE JUL 12 2011 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL FULTON COUNTY IN NORTH CENTRAL GEORGIA * UNTIL 415 PM EDT * AT 331 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED NEAR MIDTOWN...MOVING SOUTH AT 5 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ATLANTA...GRANT PARK-ZOO ATLANTA...HAPEVILLE...EAST POINT AND COLLEGE PARK. Link to comment Share on other sites More sharing options...
Solak Posted July 12, 2011 Share Posted July 12, 2011 97/73 = HI of 108 now at KJNX... I think at this point numbers are just numbers--- it's plain oppressive out there. Link to comment Share on other sites More sharing options...
shaggy Posted July 12, 2011 Share Posted July 12, 2011 97/73 = HI of 108 now at KJNX... I think at this point numbers are just numbers--- it's plain oppressive out there. I was clicking surrounding sites on the NWS page to see where everyone was at temp wise and I came across this "official" NWS obs from Washington,NC. It HAS to be an error if not this may be the highest HI I have ever seen. Washington, Warren Field Airport Lat: 35.57 Lon: -77.05 Elev: 39 Last Update on Jul 12, 3:55 pm EDT Fair 99 °F (37 °C)Humidity:67 %Wind Speed:W 12 MPHBarometer:29.83"Dewpoint:86 °F (30 °C)Heat Index:135 °F (57 °C)Visibility:10.00 mi Link to comment Share on other sites More sharing options...
eyewall Posted July 12, 2011 Share Posted July 12, 2011 Slight risk bust once again in NC. Ye olde subsidence due to the ridge itself. Link to comment Share on other sites More sharing options...
Solak Posted July 12, 2011 Share Posted July 12, 2011 Yeah, read that earlier... I do like the fact that SPC more times than not explains their reasoning for changes in the risk assessment, instead of just posting a new map and disco. Guess we'll have to be satisfied with pop-ups for a few days to collect raindrops. Link to comment Share on other sites More sharing options...
LithiaWx Posted July 12, 2011 Share Posted July 12, 2011 Looks like I may sneak in a shower, that severe storm over Downtown drifted over Cobb County with the outflow and before totally falling apart may bring some raindrops. Link to comment Share on other sites More sharing options...
jrips27 Posted July 12, 2011 Share Posted July 12, 2011 Looks like I may sneak in a shower, that severe storm over Downtown drifted over Cobb County with the outflow and before totally falling apart may bring some raindrops. I'm pretty sure you just jinxed us... rapidly falling apart now Link to comment Share on other sites More sharing options...
juspeachy Posted July 12, 2011 Share Posted July 12, 2011 88/72 HI 95 Cloudy Link to comment Share on other sites More sharing options...
LithiaWx Posted July 12, 2011 Share Posted July 12, 2011 I'm pretty sure you just jinxed us... rapidly falling apart now uggg, the kiss of death it appears Link to comment Share on other sites More sharing options...
kennedy Posted July 12, 2011 Share Posted July 12, 2011 Currently 97 here in Pineville with HI of 104, I think I just saw the devil sitting on the hood of my car. Link to comment Share on other sites More sharing options...
Snowless in Carrollton Posted July 12, 2011 Share Posted July 12, 2011 Only a high of 91 here. Surprised it didn't get warmer. A good 5 degrees cooler than forecast. I thnk from now on I'm just going to subtract 3-5 degrees from the forecasted high. Link to comment Share on other sites More sharing options...
LithiaWx Posted July 12, 2011 Share Posted July 12, 2011 uggg, the kiss of death it appears yep fail, it died out on my doorstep, could not even squeeze out a drop. Link to comment Share on other sites More sharing options...
Isopycnic Posted July 12, 2011 Share Posted July 12, 2011 Rafting on the ocoee sounds nice right about now... Link to comment Share on other sites More sharing options...
GaWx Posted July 12, 2011 Share Posted July 12, 2011 It currently feels awful here in Savannah with 96/76 at Hunter AAF, producing a 110 HI. Link to comment Share on other sites More sharing options...
Snowless in Carrollton Posted July 12, 2011 Share Posted July 12, 2011 The humidty is just awful today. I think this is the most humid it's been all summer. It's currently 90 with a dp of 78. Link to comment Share on other sites More sharing options...
FoothillsNC Posted July 12, 2011 Share Posted July 12, 2011 Sitting at 93 now. We may go another degree, so 93/94 will be my high . The dewpoints really mixed out, at 64 now. Yesterday felt a little worse, with the extreme humidity here. Link to comment Share on other sites More sharing options...
DaculaWeather Posted July 12, 2011 Share Posted July 12, 2011 For today ----------------------------------- 95.3 F - High Temp - 2:40 pm 116.0 F - High Heat Index - 2:35 pm 81.1 F - High Dew Point - 11:56 am Link to comment Share on other sites More sharing options...
LithiaWx Posted July 12, 2011 Share Posted July 12, 2011 Ok... : ----------------------------------- 95.3 F - High Temp - 2:40 pm 116.0 F - High Heat Index - 2:35 pm 81.1 F - High Dew Point - 11:56 am wow what an ugly day, I think my numbers were similar but I don't think my neck of the woods had a DP quite that high. We may have been a degree higher in actual temps though. edit : one of the most miserable days in recent memory in terms of how it felt outside today and last night. FFC is going with 99 tomorrow for KATL. and 98 for KMGE. WE shall see how it transpires. Regardless the GFS has been off it's rocker consistently with temps modeled 5 degrees higher than they verify. Really odd, it seems as though it's warm bias has decided to move to the short term instead of sticking to the 5-6 frame. Really disappointing to say the least. Larry I'm sure has some more insights as to why but if it is tied to the upgrade that happened recently then I hope they work hard on a solution to fix it. I wish I could fully understand the problem with the GFS but I don't. In this day and age you would think we could have some more reliable models. The thing that seems to bother me the most about the GFS is it initializing with numbers that are not accurate. The GFS is wrong right out of the gate it seems and gets worse after a few hours. The 2Pm temps and DP's on the GFS have been laughable recently. edit 2 : no surprise FFC extended the Heat Advisory into tomorrow, stating air temps will be between 95-104 * TEMPERATURES...HIGHS FROM 95 TO 104 DEGREES TODAY AND WEDNESDAY. Link to comment Share on other sites More sharing options...
Marion_NC_WX Posted July 12, 2011 Share Posted July 12, 2011 Sitting at 93 now. We may go another degree, so 93/94 will be my high . The dewpoints really mixed out, at 64 now. Yesterday felt a little worse, with the extreme humidity here. Gotta ask you...why did the dewpoints mix out big time just east of the mountains? I've heard some claim that last night's storm complex mixed in some drier air aloft... Link to comment Share on other sites More sharing options...
FoothillsNC Posted July 12, 2011 Share Posted July 12, 2011 Gotta ask you...why did the dewpoints mix out big time just east of the mountains? I've heard some claim that last night's storm complex mixed in some drier air aloft... I think it was from the outflow of the storms that collapsed mostly in western NC, and I noticed a cooler, much drier breeze from the north this morning. That wind eventually went west, and maintained the dry flow at the surface, while yesterday was mostly south or southeast flow which pulled air from a much more humid source. The dewpoints mixing into the mid 60's wasn't forecast too well, but it does happen a lot in a small region. Just look at the obs map and you can see it nicely right now. The west and nw flow was just enough downslope component to help continue the mixing. Huge difference in my dt right now and just 40 miles east at CLT, where its mid 70's...right about there is a Td transition or weak boundary and the wind changes. This happened a lot of the previous BIG heat waves here, including the all time record highs a lot of the Southeast set a couple years ago. Dewpoints in Rutherford, and Cleveland especially were very noticeable at upper 40's in the afternoon, while GSP and esp. CLT were upper 60's. That was the biggest disparity I've ever seen. Link to comment Share on other sites More sharing options...
Marion_NC_WX Posted July 12, 2011 Share Posted July 12, 2011 I think it was from the outflow of the storms that collapsed mostly in western NC, and I noticed a cooler, much drier breeze from the north this morning. That wind eventually went west, and maintained the dry flow at the surface, while yesterday was mostly south or southeast flow which pulled air from a much more humid source. The dewpoints mixing into the mid 60's wasn't forecast too well, but it does happen a lot in a small region. Just look at the obs map and you can see it nicely right now. The west and nw flow was just enough downslope component to help continue the mixing. Huge difference in my dt right now and just 40 miles east at CLT, where its mid 70's...right about there is a Td transition or weak boundary and the wind changes. This happened a lot of the previous BIG heat waves here, including the all time record highs a lot of the Southeast set a couple years ago. Dewpoints in Rutherford, and Cleveland especially were very noticeable at upper 40's in the afternoon, while GSP and esp. CLT were upper 60's. That was the biggest disparity I've ever seen. Thanks for your analysis...Next question I'm thinking is...Will they mix out again tomorrow? I'm betting with a front fairly close by, that there won't be as much mixing. Link to comment Share on other sites More sharing options...
FoothillsNC Posted July 12, 2011 Share Posted July 12, 2011 Here's my call from yesterday, and today's official highs. I missed east Tenn. badly, and nw GA, thanks to some rain around. The only sites I nailed exactly were Athens, Macon and my own town (93). Link to comment Share on other sites More sharing options...
FoothillsNC Posted July 12, 2011 Share Posted July 12, 2011 Thanks for your analysis...Next question I'm thinking is...Will they mix out again tomorrow? I'm betting with a front fairly close by, that there won't be as much mixing. I 've been so busy, I haven't even looked at tomorrow yet. I'll post my thoughts tonight. Link to comment Share on other sites More sharing options...
Snowless in Carrollton Posted July 12, 2011 Share Posted July 12, 2011 Correct me if I'm wrong but don't you have to have a mornng low of at least 75 to be under a heat advisory ? FFC has me with a low of 71 but still under a Heat Advisory. Link to comment Share on other sites More sharing options...
Solak Posted July 12, 2011 Share Posted July 12, 2011 93/99TD at 7:55PM --- yuck. Link to comment Share on other sites More sharing options...
Solak Posted July 13, 2011 Share Posted July 13, 2011 Moon rising through that rogue storm blowoff over Kinston... 43+ miles away Link to comment Share on other sites More sharing options...
DaculaWeather Posted July 13, 2011 Share Posted July 13, 2011 Correct me if I'm wrong but don't you have to have a mornng low of at least 75 to be under a heat advisory ? FFC has me with a low of 71 but still under a Heat Advisory. Technically yes, but I think their concern is the high temps and heat indexes. High DP's at night might help to override the low temp cutoff? Maybe Steve will chime in. Link to comment Share on other sites More sharing options...
LithiaWx Posted July 13, 2011 Share Posted July 13, 2011 Technically yes, but I think their concern is the high temps and heat indexes. High DP's at night might help to override the low temp cutoff? Maybe Steve will chime in. The criteria is different for different areas. I tried looking it up and the Criteria for Georgia I'm not able to find it. I'd be interested to see if Heat index at night can override the 75 if that's even correct. Link to comment Share on other sites More sharing options...
dsaur Posted July 13, 2011 Author Share Posted July 13, 2011 I didn't ride the thermometer all day, but the hottest I saw was 91.7, and within a half hour, or around 3ish, the clouds disappeared the sun, as has been the daily ritual, and it was down around 87, My idea of a wonderful result via a heat advisory. I don't care if I never see 100 again...ever!! I've lived thru enough consecutive days of no breeze and 100+ temps to have me glutted forever. I'm loving the new GFS temp disorder...just wait until all those surprise snow/sleet events when it was supposed to be 8 degrees warmer, lol. Larry, I'm calling for 2 major sleets and a big, huge snow where it should have been 33 and rain T Link to comment Share on other sites More sharing options...
downeastnc Posted July 13, 2011 Share Posted July 13, 2011 Washington NC has a HI of 108 right now kinda ridiculous as it is almost 10 at night. Link to comment Share on other sites More sharing options...
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