Subject: CASILIST : RE: Damage Assessment of Jones County NC Completedtoday Date: Mon, 19 Apr 1999 17:53:43 -0400 From: J Organization: Central Atlantic Storm Investigators To: CASI Mailing List Recipients --------------------------------------------------------------------- Subject: Re: CASILIST : Damage Assessment of Jones County NC Completed today Date: Mon, 19 Apr 1999 00:56:59 -0400 From: Greg To: CASI Mailing List Recipients Chris, and All... I must say that the damage would at first look like F2-F3... but I don't have to tell you that there are an uncalculable amount of things that must be taken into consideration when doing storm surveys. Do your own "Significant Tornadoes", or have you ever read or seen parts of it? It is a very good book, over 1000 pages. Weighs something like 8 or 9 pounds! Anyway, those are really the guidelines that everybody in the storm survey business should be going by. One day that may be the case. There are SO many variables that exist when determining damage and windspeed... especially with trailers/mobile homes. But, even all types of houses can of course be significantly different. "Significant Tornadoes" shows that an F1 tornado can "destroy" a house (not trailer/mobile home). You would have to know exactly how that house was constructed and bolted down... if it was bolted down at all. Many roofs are not attached good, and tehy can be lifted by winds in the upper F0 and low F1 range. Once the roof is gone, the house can fall apart quite easily. I don't know if that single family home had its roof lifted, don't think I saw a picture of that house yet. But if the roof is still mostly on (pieces can be missing) and the house is pushed off its foundationm this is often an indication of F1 wind. About trailers or mobile homes, they should be rated F0 or F1 (usually the latter) most of the time. An F2 rating should only be applied, when looking at just mobile home damage, if the mobile home has been completely destroyed beyond recognition. There should be no trace that the debris left behind was ever a mobile home/trailer. An F3 rating or higher should never be applied to mobile home damage. About vehilces, this is where big confusion often comes in. To everybody out there, IT DOES NOT TAKE F4 WINDS TO MOVE A VEHICLE HUNDREDS OF FEET! Although some of us may know that, many do not... and think that it takes extremely powerful winds to roll vehilces hundreds fo feet. This is especially true to people who have no experience doing storm surveys, having done none or just a few. They are mind-boggled that this vehicle is now across the neighbors lawn. Truth is that F2 winds can move vehicles over 500 feet. An F1 can overturn vehicles, and roll small cars a couple times. This is for parked vehicles -- most moving vehiles can be blown off the road by winds of 60-90 mph. I could say much more, about my experiences with storm surveys and relating damage to windspeed. But there are just too many things to say... so I won't do that ;) Anyway, this tornado you described below in Jones county should be rated either upper F1 or mid F2. I would have to be there to estimate more exact winds, and if I was closer to NC I would do just that. Unfortunately I'm not. Since tornadoes/downbursts are rated for their most severe damage, even if most damage is less severe, this tornado MIGHT deserve an F2 rating. I would have to see the damage first hand to determine if an F2 rating is more appropriate than a F1. But upper F1 could be right... remember that those winds go all the way up to 112 mph! That's damn high, and almost nothing can go un-damaged at that magnitude. Last thing I want to say is that the F-scale ratings and related damage described above apply to both tornadoes and thunderstorm winds/downbursts. Thunderstorm winds surely will do just as much damage as a tornado with the same wind speed... maybe *slightly* more. Now other types of wind, namely high speed sustained winds like in blizzards... hurricanes... or just high wind days, do not cause as much damage with the same speed wind as a downburst or tornado. Most of us probably know why, so I'm not going to go into it. I could write a small book about that ;) Thought this infornaiton would be usful for the people who don't know... -Greg At 10:52 PM 4/18/99 -0400, you wrote: > > >The American Red Cross has completed the Damage Assessment of the Jones >County area today. In all there were 25 structures which recieved damage. >10 of those were trailers that were destroyed and 1 single family house was >destroyed. 2 single family houses had major damage and 2 trailers had major >damage, the rest recieved minor damage. >Some of the sites I visted today had some unbelieveable damage. I saw >several trailers that were knocked completely off their foundation including >the hurricane ties being removed from them. The 1 single fmaily home I went >to was knocked 25-30' off of its foundation. There was a debris trail over >5 miles long and their were alot of cars overturned and destroyed. This >tornado was classified as an F-1 by the National Weather Service. In my >personal opinion, I would have to believe that it was an F2-Light F3 at >times. This is the final report for this storm investigation > > > > >Chris > ____________________________________________________________________ The Pennsylvania Weather Page: http://www.pa-weather.simplenet.com --------------------------------------------------------------------- ************************************************* Central Atlantic Storm Investigators Mailing-List To Post: casilist@weatherwatchers.org To Cancel: lists-admin@weatherwatchers.org Archive: /members/casilist ************************************************* Subject: CASILIST : Damage Assessment of Jones County NC Completed today Date: Sun, 18 Apr 1999 22:52:59 -0400 From: J Organization: Central Atlantic Storm Investigators To: CASI Mailing List Recipients --------------------------------------------------------------------- Subject: Damage Assessment of Jones County Completed today Date: Sun, 18 Apr 1999 20:08:23 -0400 (EDT) From: Chris Phillips To: casilist@weatherwatchers.org The American Red Cross has completed the Damage Assessment of the Jones County area today. In all there were 25 structures which recieved damage. 10 of those were trailers that were destroyed and 1 single family house was destroyed. 2 single family houses had major damage and 2 trailers had major damage, the rest recieved minor damage. Some of the sites I visted today had some unbelieveable damage. I saw several trailers that were knocked completely off their foundation including the hurricane ties being removed from them. The 1 single fmaily home I went to was knocked 25-30' off of its foundation. There was a debris trail over 5 miles long and their were alot of cars overturned and destroyed. This tornado was classified as an F-1 by the National Weather Service. In my personal opinion, I would have to believe that it was an F2-Light F3 at times. This is the final report for this storm investigation Chris --------------------------------------------------------------------- ************************************************* Central Atlantic Storm Investigators Mailing-List To Post: casilist@weatherwatchers.org To Cancel: lists-admin@weatherwatchers.org Archive: /members/casilist ************************************************* Subject: CASILIST : April 15 NC Severe Weather Date: Sun, 18 Apr 1999 11:59:10 -0400 From: J Organization: Central Atlantic Storm Investigators To: CASI Mailing List Recipients Folks, for some reason the email I was going to send yesterday never went through. I updated the CASI site to include more information and links for the 4/15/99 Carolina Storms, including the link that Bob mentions below. Roger Edwards has again come through for the Internet Storm Investigating Community by posting radar images of the storms to the SPC site. Enjoy! -- ============================================================== Jesse Ferrell - Meteorologist/Web Dev. - j@weatherwatchers.org Central Atlantic Storm Investigators - www.weatherwatchers.org [text/attachment] --------------------------------------------------------------------- Subject: April 15 NC Severe Weather Date: Sat, 17 Apr 1999 08:47:55 -0400 From: "Bob Woodson" To: "CASI Mailing List Recipients" Excellent images and analysis of the supercell in Jones County NC during the evening of April 15th. This is the storm with the reported 165mph wind gust and produced several tornadoes: http://www.spc.noaa.gov/coolimg/ Bob Woodson KF4MMM Raleigh, NC www.qsl.net/kf4mmm Subject: CASILIST : RE: NC Severe Weather Date: Sat, 17 Apr 1999 11:30:53 -0400 From: J Organization: Central Atlantic Storm Investigators To: CASI Mailing List Recipients From: Chris Phillips RE: 165mph This was a private amatuer radio operator station. You will not find it on the internet anywhere. I hope this helps clear things up for this wx station. I believe it was a Davis Weather Monitor II [text/attachment] Subject: FYI - April 15 tornadoes Date: Fri, 16 Apr 1999 22:41:18 -0400 (EDT) From: Chris Phillips To: casilist@weatherwatchers.org I just recieved this tonight. I hope this helps I also know that the Damage Assessment is ongoing and that American Red Cross has issued a Disaster Relief # for this operation from National I will keep you posted as much as possible Chris >X-Sender: rwhitten@postoffice.worldnet.att.net >Date: Fri, 16 Apr 1999 18:23:49 -0400 >To: nc-arrl@ncarrl.org >From: Reed Whitten >Subject: FYI - April 15 tornadoes > >As far as I know ARES involvement in this event was only through the >SKYWARN nets that were active when the storms were approaching. > >Sending this to the ncarrl listserv just for your information. > >73 > >Reed, AB4W >NC SM > >........... > > >Mailer: Novell GroupWise 4.1 >>Date: Fri, 16 Apr 1999 16:22:02 -0400 >>From: NC EOC >>To: rwhitten@worldnet.att.net >>Subject: April 15 tornadoes >> >>State of North Carolina >>Division of Emergency Management >>Severe Storms >>SITUATION REPORT >> >>The period of this report is from 1100 hours, April 16, 1999 >>to 1600 hours, April 16, 1999 >> >> >>I. SITUATION >>A. Initial >>On April 15, 1999, severe thunderstorms formed and moved across the >>southeast region of the state. These thunderstorms spawned tornadoes >>and high winds in several eastern North Carolina counties. >> >>B. Current >>County officials are continuing to survey the damages caused by the >>severe thunderstorms. There have been confirmed reports of one death, >>several injuries, damaged homes, businesses and power outages. >> >> >>II. COUNTY ACTIONS >>EASTERN BRANCH >>Area coordinators continue to work in the impacted eastern counties >>with local officials. This work consists of damage surveys and >>interviews with local citizens to assess damages to homes and >>businesses. >> >>Bladen County: A damage assessment of the White Oak area shows >>that mobile homes have been damaged and three storage buildings have >>been destroyed. In the Tar Heel area, seven people have been injured. >>According to damage surveys, one single family home and six mobile >>homes were destroyed. Five storage buildings were destroyed. >>Volunteers and state inmates are assisting in clean up efforts. >> >>Carteret County: One business and five homes were damaged. >> >>Craven County: High winds caused a Norfolk Southern freight train >>near Bridgeton to derail. No hazardous materials were on board, and no >>one was injured. >> >>Duplin County: The county had severe damage and 15 people were >>injured. The severe thunderstorms delayed school this morning by two >>hours. >> >>Jones County: Eight people were injured and 25 people have been >>displaced by the severe thunderstorms. No shelters are required in the >>county. However, 14 people have been placed in a motel by the >>American Red Cross. The remaining people are staying with family and >>friends. Power is currently being restored. >> >>Preliminary damage assessments report 11 single family homes have >>been destroyed; 17 have major damage and 17 have minor damage. >>Fourteen mobile homes have been destroyed, 12 have major damage and >>16 have minor damage. Thirty-four businesses, including barns, have >>been destroyed, 9 have major damage and 11 have minor damage. >>Fifteen hog houses and three turkey houses have been destroyed and >>four hog houses have major damage. One church has minor damage. >> >>Onslow County: Trees and power lines were blown down, and two >>barns in the Back Swamp community have been damaged. The Haw >>Branch area has some structural damage. Eleven homes have been >>destroyed, 15 homes have major damage and 14 homes have minor >>damage. >> >>Robeson County: One person was killed, not three as previously >>reported, and at least 20 others have been injured as a result of the >>severe thunderstorms. The death occurred at the Chavis Mobile Home >>Park. Eight mobile homes were destroyed and three people have been >>injured. Other destroyed mobile homes were located along U.S. 74 in the >>Hidden Valley area near Maxton and in East Howesville. Power lines >>were knocked down. Volunteers and state inmates are assisting in clean >>up efforts. >> >>III. STATE ACTIONS >>Operations Section >>Human Services >>Mass Care >>American Red Cross - Providing assistance to displaced persons. >> >>Infrastructure Support >>Transportation - Debris-covered U.S. 258, state routes 58 and 4 and >>secondary roads 1156 and 1157 have been cleared and all roads are >>open. >> >>Correction - Assisting several counties in their clean upefforts. >> >>Emergency Services >>Emergency Medical Services >>OEMS - Has been activated and is responding to requests for >>assistance. >> >>Logistics Section >>The Logistics Section Group is responding to requests for >>assistance. >> >>Operations Support >>Resource Operations - is responding to requests for assistance. >> >>Information and Planning Section >>Monitoring the current situation and developing a situation report. >> >>Education and Emergency Information Group >>Developing press releases for distribution as needed. >> >>IV. DISTRIBUTION >> SITUATION REPORT GROUP >> >>Released by LAW >> > > > > Subject: CASILIST : Tornado over wx station - Jones Co. NC Date: Fri, 16 Apr 1999 07:54:58 -0400 From: J Organization: Central Atlantic Storm Investigators To: CASI Mailing List Recipients 999 WWUS30 KMHX 160238 LSRMHX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC 1035 PM EDT THU APR 15 1999 TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS... ....COUNTY LOCATION.... 1020 PM TRENTON NC 165 MPH TSTM GUST 04/15/99 JONES WIND EQUIPMENT SHOWED GUSTS TO 165 MPH, BARNS, TREES DESTROYED, ALL HUNTING DOGS KILLS, N OF TRENTON --------------------------------------------------------------------- Subject: tornado over wx station Date: Thu, 15 Apr 1999 23:43:38 -0400 (EDT) From: SMWINCVA@webtv.net (Steven Minghini) To: j@weatherwatchers.org Dear J, About 10:45pm, TWC announced that a wx station at Trenton (Jones Co.) NC received a 165 mph wind gust, & speculated an F3 tornado passed over head. I checked the school AWS system & found no stations in it's path. I checked the airport AWOS's w/ no luck, so the station must have been a private one. The report from the NWS p.i.s. said that outbuidings & barns were destroyed, and that a pack of hunting dogs were killed. One person died as the suspected tornadic storm hit Duplin Co about 9:45pm. At it's peak the meso-cell had the appearance of a hurricane w/ the shape on radar. Steve Minghini --------------------------------------------------------------------- ************************************************* Central Atlantic Storm Investigators Mailing-List To Post: casilist@weatherwatchers.org To Cancel: lists-admin@weatherwatchers.org Archive: /members/casilist ************************************************* Subject: CASILIST : Severe Weather Statements For NC ; Skywarn In Active Mode Date: Fri, 16 Apr 1999 07:56:17 -0400 From: J Organization: Central Atlantic Storm Investigators To: CASI Mailing List Recipients Subject: skywarn IN ACTIVE MODE Date: Thu, 15 Apr 1999 22:25:26 -0400 (EDT) From: Chris Phillips To: casilist@weatherwatchers.org 145.2100 ACTIVE at this time SKYWARN TRENTON REPEATER TREES ARE BEING REPORTED DOWN AND VEHICLES DAMAGED IN LENOIR COUNTY AT THIS TIME SEVERAL TORNADOES HAVE TOUCHED DOWN IN ONSLOW COUNTY AT THIS TIME AND HAVE BEEN REPORTED OVER THE FIRE NET AT THIS TIME --------------------------------------------------------------------- Subject: Severe Weather Statement For NC Date: Thu, 15 Apr 1999 22:21:57 -0400 (EDT) From: Chris Phillips To: casilist@weatherwatchers.org THIS TORNADO HAS ALREADY CAUSED SUBSTANTIAL DAMAGE AND IS CONTINUED TO MOVE EASTERLY AT THIS TIME.......I WILL TRY TO REMAIN ONLINE LONG ENOUGH TO KEEP YOU UP TO DATE, POWER LINES ARE GOING DOWN AND THE SKYWARN TRENTON REPEATER HAS LOST POWER AND IS RUNNING ON BACK UP POWER AT THIS TIME. WINDS ARE ESTIMATED AT APPROIMATELY 65-80MPH AT THIS TIME..... ONSLOW COUNTY HAS JUST RECIEVED A TORNADO WARNING.......... HAIL IS FALLING AT THIS TIME AND IS CAUSING TREES TO CRACK AND FALL I WILL TRY TO GET A BETTER REPORT ISSUED LATER NNNN >RDUSVSMHX >TTAA00 KHAT 160213 >NCZ090>092-160245- > >SEVERE WEATHER STATEMENT >NATIONAL WEATHER SERVICE NEWPORT-MOREHEAD CITY NC >1011 PM EDT THU APR 15 1999 > >..A TORNADO WARNING REMAINS IN EFFECT FOR PEOPLE IN JONES...DUPLIN >AND LENOIR COUNTIES... > >AT 1011 PM EDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO OVER >POTTERS HILL. > >THE STORM WAS MOVING EAST AT 30 MPH. > >THE TORNADO IS EXPECTED TO BE... > OVER COMFORT AROUND 1035 PM EDT. > >IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A >SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE >NEAREST DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. > >STAY TUNED TO NOAA WEATHER RADIO...LOCAL RADIO...TV...OR CABLE TV FOR >THE LATEST SEVERE WEATHER INFORMATION. > Subject: CASILIST : 62mph wind gusts reported in NC ; Tornado Watch in effect Date: Thu, 15 Apr 1999 22:10:14 -0400 From: J Organization: Central Atlantic Storm Investigators To: CASI Mailing List Recipients Subject: Areal update For NC Date: Thu, 15 Apr 1999 21:54:24 -0400 (EDT) From: Chris Phillips To: casilist@weatherwatchers.org THE TORNADO WATCH HAS BEEN EXTENDED TO 12 MIDNIGHT TONIGHT FOR EASTERN NORTH CAROLINA AND ADJACENT COASTAL WATERS PLEASE STAY TUNED TO THIS EVENT WWUS32 KRDU 160146 SLSNC NORTH CAROLINA AREAL OUTLINE FOR TORNADO WATCH 161 NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 943 PM EDT THU APR 15 1999 THIS WATCH INCLUDES 29 COUNTIES IN THE FOLLOWING PARTS OF THE NORTH CAROLINA... COAST COASTAL PLAIN SOME CITIES INCLUDED IN THE WATCH ARE... GREENVILLE JACKSONVILLE KINSTON NEW BERN WILMINGTON IN NORTH CAROLINA THIS WATCH INCLUDES THE FOLLOWING COUNTIES... NCC013-019-029-031-041-049-053-053-055-055-095-095-103-129-133-137- 139-141-143-177-187-160400- ..COAST... BEAUFORT BRUNSWICK CAMDEN CARTERET CHOWAN CRAVEN MAINLAND CURRIT OUTER BANKS CUR MAINLAND DARE OUTER BANKS DAR MAINLAND HYDE OUTER BANKS HYD JONES NEW HANOVER ONSLOW PAMLICO PASQUOTANK PENDER PERQUIMANS TYRRELL WASHINGTON $$ NCC015-017-047-061-079-107-117-147-160400- ..COASTAL PLAIN... BERTIE BLADEN COLUMBUS DUPLIN GREENE LENOIR MARTIN PITT $$ AMATEUR RADIO OPERATORS AND SEVERE WEATHER SPOTTER GROUPS ARE REQUESTED TO RELAY STORM INFORMATION TO THE NATIONAL WEATHER SERVICE. ALL PEOPLE ARE ENCOURAGED TO REPORT ANY DAMAGING WEATHER TO LAW ENFORCEMENT FOR RELAY TO THE NATIONAL WEATHER SERVICE. LISTEN TO LOCAL RADIO, TV, OR WEATHER RADIO FOR WEATHER UPDATES AND POSSIBLE WARNINGS. --------------------------------- --------------------------------------------------------------------- Subject: 62mph wind gusts reported Date: Thu, 15 Apr 1999 21:52:01 -0400 (EDT) From: Chris Phillips To: casilist@weatherwatchers.org 62MPH WIND GUSTS WSW WAS JUST REPORTED AT OCRACOKE AT 9:45PM EST THIS EVENING SEVERAL TRAILERS HAVE BEEN OVERTURNED DUE TO TORNADOES THIS EVENING WILL KEEP ADVISED LATER TONIGHT NNNN Subject: CASILIST : SEVERE WX IN SOUTHEAST Date: Wed, 14 Apr 1999 21:32:48 -0400 From: J Organization: Central Atlantic Storm Investigators To: CASI Mailing List Recipients Yes folks there is a Tornado Watch in effect currently for Mississippi and areas to its west; a Slight Risk of severe thunderstorms for the MS area tonight, and most of the Southeast and Mid-Atlantic tomorrow. See here for additional forecast severe maps: http://casi.simplenet.com/j/oldsite/wx/severe.html http://www.nssl.noaa.gov/~spc/products/outlook/otlkform.htm - Specific Weather Threat Graphics http://www.intellicast.com/weather/usa/radsum/ - Current Watches / Radar -- ============================================================== Jesse Ferrell - Meteorologist/Web Dev. - j@weatherwatchers.org [intro message from Don Arnold follows: text/attachment --------------------------------------------------------------------- Subject: SEVERE WX IN SOUTHEAST Date: Wed, 14 Apr 1999 18:31:21 -0500 From: Don or Darla Arnold To: "Mid-Atlantic Weather Station [MAWS]" , CASI Mailing List Recipients , MAWS Storm Report , "mississippi-lite@onelist.com" , Storm Spotter List , twister8 , weather list , Weather Monitor List HI all waether nuts, freqs and fanatics. keep up with the severe weather in the south east tonight don check following http://www.geocities.com/Heartland/Valley/6430/WeatherMWST.html http://www.magnolia.net/~billyg/light.gif http://www.earthwatch.com/STORMWATCH/SWSE2D.html http://www.met.tamu.edu/weather/warnings/warnings_ms.html ENJOY Don KB5FHX Certified Storm Spotter MARS Member Ares-Races Member -- OUR WEB PAGE UPDATED 04 April 99 http://www.geocities.com/Heartland/Valley/6430 Darla and Don's Website http://hattiesburg.net/columns/darnold.shtml My online column DARLA (dawn) ICQ# 7341931 Don (weathernut) ICQ# 14664294 Just Because Your NOT paranoid does'nt mean they are NOT out to get ya!