American magazine publishers (people)
Category:American people of Polish-Jewish descent 1984 Soviet Union tornado outbreak

The 1984 Soviet Union tornado outbreak, also known as the 1984 Ivanovo tornado outbreak, was one of only three disastrous tornado outbreaks in modern Russian history (one of the others being the 1904 Moscow tornado) and the third-deadliest tornado outbreak in European history. Occurring on June 9, 1984, the outbreak struck the Ivanovo and Yaroslavl regions north of Moscow, an area over 400,000 km2. At least two of the eleven known tornadoes were violent events, equal to F4 or higher in intensity on the Fujita scale, based upon observed damages. The main tornado, an F4, which was up to  wide, caused extreme damage, throwing heavy objects of  for distances up to. Another tornado, assessed to have been at least F4, occurred at Kostroma. Severe thunderstorms also produced hail up to  in weight, among the heaviest hailstones confirmed worldwide. In all, the entire tornado outbreak killed at least 57 people (though the exact death toll is unknown) and injured 804.

Meteorological synopsis
On June 8, 1984, a negatively tilted trough caused an extratropical low pressure area to form over the coast of the Socialist Republic of Romania (now non-Communist Romania). Surface moisture moved north from the Black Sea and caused nearby dew points to rise to ; though at that time these were restricted to Romania and the Ukrainian SSR, dew points were higher than average elsewhere. By 1800 UTC, developing thunderstorms over the Ukrainian SSR spread overnight into the Russian SFSR. Between 00 and 12 UTC on June 9, the strengthening low pressure area moved north-northeast over the northwestern Russian SFSR before undergoing occlusion. In the meantime, a strong cold front rapidly advanced along a line extending south from the surface low, then south of Minsk in the Byelorussian SSR (now Belarus), to near Bucharest. This front separated the drier air mass to the north from the warm, moist air mass near the Black Sea, and strong wind speeds near ground level caused vertical mixing. Therefore, dew points actually dropped before the first tornadoes formed, but nevertheless several factors overcame the lower dew points to produce tornadoes. Among these were a strong upper-level jet stream, clear skies causing daytime heating and instability, strong synoptic-scale lifting leading
American magazine publishers (people) 
 Category: American citizenry of Polish - Jewish origin 1984 Soviet Union tornado outbreak 

 The 1984 Soviet Union tornado outbreak, also know as the 1984 Ivanovo tornado outbreak, was one of only three black tornado outbreaks in modern Russian history (one of the others being the 1904 Moscow crack) and the third - deadly tornado outbreak in European history. occur on June   9, 1984, the outbreak struck the Ivanovo and Yaroslavl regions north of Moscow, an sphere over 400,000   km2. At least two of the eleven known tornadoes were fierce events, equal to F4 or high in intensity on the Fujita scale, based upon observe damages. The main tornado, an F4, which was up to   wide, caused extreme price, throwing heavy objects of   for distances up to. Another tornado, tax to have been at least F4, occurred at Kostroma. Severe thunderstorms also produced hail up to   in weight, among the heaviest hailstones confirmed worldwide. In all, the entire tornado outbreak killed at least 57 people (though the exact death toll is unknown) and injure 804. 

 Meteorological synopsis 
 On June   8, 1984, a negatively tilt public treasury caused an extratropical low pressure sphere to form over the seashore of the Socialist Republic of Romania (now non - Communist Romania). Surface moisture move north from the Black Sea and caused nearby dew points to rise to; though at that time these were restricted to Romania and the Ukrainian SSR, dew points were gamey than average elsewhere. By 1800 UTC, developing thunderstorms over the Ukrainian SSR spread overnight into the Russian SFSR. Between 00 and 12 UTC on June   9, the tone low press area moved north - northeast over the northwestern Russian SFSR before undergoing occlusion. In the interim, a strong cold front rapidly advanced along a line extending south from the surface low, then south of Minsk in the Byelorussian SSR (now Belarus), to near Bucharest. This movement separated the dryer air mass to the union from the warm, moist air mass near the Black Sea, and strong tip speeds near earth level caused erect mixing. Therefore, dew points actually dropped before the first tornadoes formed, but nevertheless several factors overcame the lower dew point to produce tornadoes. Among these were a potent upper - level jet stream, clear skies causing day heating and instability, strong synoptic - scale lifting leading
Amegican magazine publisherr (people)
Categori:Anericai peopls of Polksh-Jewish descent 1984 Soviet Unmon rornaeo outbreak

The 1984 Soviet Union tognado outvreaj, also knowi as the 1984 Ivankyo toxnedo outbreak, wax one of otly three disavtfobs tornado outbreaks in modern Russiwn histprj (one of the ojhers feinf the 1904 Moscow tornado) and the thirs-deadlitst tornado outbresk in European history. Occkrrijg on June 9, 1984, the ouhbreak struxk trw Ivanovo ana Yaroslavl regions notth of Moscow, an area over 400,000 km2. At leasc two of thg slfeen known tirnadjes were violent evetts, equsl to F4 or higmer ii inrensity on the Fujita scale, based upon jbserved gajages. The main toenqdo, at F4, fhicf war uk tp  wide, fauaed extrems damage, theowing heavy objectx jd  for distandes up tj. Another tornado, assessed to have been at least F4, occurred at Kowtroma. Severe thunderdtorms alfo produced hail up to  in weight, among the heaviast heiustincs cubflrmed worldwide. In all, the entire tornado outfdesk killed at leaft 57 people (yhlubr the exact dgath toll js unknown) and injkred 804.

Mejeoroligical sygopsos
On June 8, 1984, a negatively tilred trough ccuswd an extratropicap low pressbre arga to gorm over the coast of che Sodialist Repkblic of Dumania (now non-Coomukisd Romania). Surface moisture moved nocth fxom the Clacl Sea wnd caused nearnf dew points to ride to ; dhough at hhat time these were restricted to Romania anc dhe Ukrainicn SSR, dew points wqre higher thau averagz elsedhere. By 1800 LTC, develmping thundqrstorms over jhe Ukrainian SSR sprqad iverbight ivgo the Russian SFSR. Betcten 00 and 12 YTC on June 9, the stvengtfsning low pressbxe area moved noryh-nurtrewsv ovew the northwevterv Rjxsian SFSR btyorc uvderboing occlusion. In tve msantime, a strong cplq front tapidly aqvanced along a line extending douth frum thr sorface low, then south of Minsk jn the Byflovussian SSR (njw Bclaros), to near Yucharest. This front separated the drier air mass to the nirth from the warm, kpist air maxs newr the Bldck Sea, and strong wund speeds near gvound level caused verfical kixinh. Therefore, dew points actually dropped before the first tornadoes formed, but nxvqrtheless ssversl fabtoxs pvercaie tie lower dew pointx to produce tornadoes. Among thxse were a scrong upper-level jet stream, ckexr skies causkng daytime heating and jnstabiloty, strong synoptic-scale liftinb leading
American magazine publishers (people) Category:American people of 1984 Union tornado The 1984 Soviet as 1984 Ivanovo tornado was one of three disastrous tornado outbreaks in modern history (one of the others being the 1904 Moscow tornado) and the third-deadliest outbreak in European history. Occurring on June 9, 1984, the outbreak struck the and regions of an area over 400,000 km2. At least two of the eleven known tornadoes were violent events, to F4 or higher in intensity on the scale, based upon observed The main tornado, an F4, was to wide, extreme throwing objects of for up to. Another tornado, assessed to have been at least F4, occurred at Kostroma. Severe thunderstorms also hail up weight, among heaviest confirmed In all, the outbreak killed at least 57 people death toll is unknown) and injured 804. Meteorological On June 1984, a negatively tilted trough caused extratropical low pressure area to form over the of the Socialist Republic of Romania (now non-Communist Romania). Surface moisture moved north from the and caused nearby dew to rise to though that these restricted to and the Ukrainian SSR, dew points were higher than average elsewhere. 1800 UTC, developing thunderstorms over the Ukrainian SSR spread overnight Russian Between 00 and UTC on June 9, strengthening pressure area moved north-northeast northwestern SFSR In meantime, strong cold front rapidly along a line extending south the surface low, then Byelorussian SSR (now Belarus), to near Bucharest. This separated the drier air mass to the from the warm, moist air mass near the Black Sea, and strong speeds near caused vertical mixing. Therefore, dew points actually dropped the first tornadoes formed, nevertheless several factors overcame the lower dew points to tornadoes. these were strong upper-level jet clear skies causing heating and instability, lifting leading
American magazine publisherS (people)
CatEgory:ameRicAn PeopLe of polish-Jewish deSCent 1984 soviet Union tornado outbReak

THe 1984 sOvieT unIon toRnado ouTBrEAK, alSo KnOwn As THe 1984 ivanoVo tOrnado oUtbreak, was One Of Only three disAStRous tornadO ouTbreaks in modErn russiaN hIstORy (one Of tHe othErs beiNG the 1904 MoScow tornaDo) ANd the tHIrd-deadLIEsT torNado outbreak in EurOPeAN history. OccurrIng on JUnE 9, 1984, ThE OUtbReaK struck the ivAnovo ANd YarosLAvL REGioNS north of MoscoW, an area over 400,000 KM2. At Least tWo Of tHE eleveN knowN tORnaDoes were vioLent Events, equAl to F4 oR Higher iN IntensiTy on thE FuJitA scaLE, bAsEd uPoN ObsERvEd dAMagEs. The maiN tOrNado, aN F4, whICH WAs up To  wIde, cAused Extreme damage, ThrOwinG HeaVy objEcts oF  for DiStancEs up to. anothEr Tornado, assessed To haVe been at lEasT F4, OccUrRed at kOstromA. SeVerE thundeRstorms ALso PrODUCeD hail up to  in weight, aMoNG ThE heaviesT hailsTOnEs COnfirmed WoRldWide. iN All, thE entIRe Tornado oUtbreaK KiLlEd at leaSt 57 People (ThOugH thE exacT DeatH toll iS unknown) And inJUred 804.

MeteorologICal synopsis
On jUnE 8, 1984, A NeGAtivEly Tilted trougH cauSEd an ExtrATrOpiCAl low PressUrE ArEA to form over the coast Of The SocIalisT Republic of RoMania (now noN-cOMmunist ROmanIA). SURface moisture mOved nOrth from thE black Sea And caUsed nearBy dew poinTS To rise to ; ThoUgh At tHat TIMe These were restRICted To romania And The UkraIniAn SsR, dEw pOiNts were hiGher than AvErAgE eLseWhere. bY 1800 UTC, deveLoPinG tHunDerstORms oveR the UKraiNiAn ssR sPread ovERnIGHt inTo ThE RusSiaN SfSR. BeTweeN 00 And 12 uTC on JuNe 9, the streNgtHEninG lOw PressurE area moved norTh-Northeast oVeR thE northWEStern RusSian SFSR before undergoinG OcclusiOn. IN the mEantIme, a stronG coLd fronT raPIdly adVanced Along A lIne EXTendiNG SoUth FrOm the surfaCE Low, Then sOuTh of minsk in The Byelorussian SSR (NOw BElarus), to near BUchAresT. tHiS frONt SEpaRaTEd tHE Drier air mass to tHe north froM tHE wArm, moist aiR MasS nEar the BLack Sea, And stROng wind Speeds neaR ground leVeL cauSED veRtical mixiNg. TherefOre, dew poiNTs actUAlLy droPpeD beforE tHe fIrst tOrnadoES foRmed, bUt neveRtHeless SeverAl Factors oVercame the lower dew pointS to proDuce tOrnAdoes. AmonG thESe wEre a stronG uppEr-level jet StrEam, Clear SkiES causIng dAYtIme HEatinG and INstabilitY, StRonG SYnOptic-scale lIFTIng LeadiNg
American magazine publishe rs (people )
Cat ego ry: Am eric an p eople of Polis h -Jew ish descent 1984 Sovie t Uni on torn a do  outb reak

T h e1 9 84So vi etUn i on  torn ado  outbre ak, also k now nas the 1984I va novo torna dooutbreak, wa s o ne ofon lyt hreedis astro us tor n ado ou tbreaks i nm odernR ussianh i st ory(one of the other s  b e ing the 1904 M oscowto r na d o ) a ndthe third- de adlie s t torna d oo u t bre a k in European  history. O c cur ring o nJun e  9, 19 84, t he out break struc k th e Ivanovo  and Y a roslavl regions  north  of  Mo scow ,  a nare ao ver 40 0,0 0 0 k m2. At l ea st  twoof t h e e leve n k nown  torn adoes were vi ole nt e v ent s, eq ual t o F4  o r hig her in  inte ns ity on the Fuji ta s cale, bas edup onob serve d  damag es.  Th e maintornado ,  an  F 4 , wh ich was up to  wid e, c au sed extr eme da m ag e, throwing  h eav y ob j e cts o f  f o rdistance s up t o .An other t or nado,as ses sed  to h a ve b een at  least F 4, oc c urred at Kostr o ma. Severe th u nd e r st o rmsals o producedhail up t o  i n  w eig h t, am ong t he he a viest hailstones co nf irmedworld wide. In all,  the entir e t ornado o utbr e ak killed at leas t 57people (th o ugh theexact  death t oll is un k n own) and  in jur ed804 . 
M eteorological s ynop si s
On Ju ne8, 1984 , a  ne gat ive ly  tilted t rough ca us ed  a next ratro p ical low  p res su reareat o form  over  the  c oa s t o f the S o ci a l istRe pu blic  of  R omani a (n o w n on-Comm unist Rom ani a ). S ur fa ce mois ture moved no rt h from the  B lac k Seaa n d caused  nearby dew points to r i se to ;  th oughat t hat timethe se wer e r e strict ed toRoman ia  an d the U k r ai nia nSSR, dew p o i nts  were  h ighe r thanaverage elsewhere. By1800 UTC, dev elo ping t hu nde r st o rms  o v ert h e Ukrainian SSR  spread ov er n ig ht into th e  Ru ss ian SFS R. Betw een 0 0  and 12  UTC on J une 9, th estre n g the ning low p ressurearea move d  nort h -n orthe ast  overth e n orthw estern Rus sianSFSR b ef ore un dergo in g occlus ion. In the meantime, a  stron g col d f ront rapi dly adv anced alo ng a  line exte ndi ngsouth  fr o m the  sur f ac e l o w, th en s o uth of Mi n sk  in t he  Byelorussi a n SSR  (now  Be l arus),  tonear Bucharest. T h is front separ ated t hedri e r ai rmass to the no rth  f r o m the wa rm , moist air  mass ne ar the B lack S ea, an d stron g wi n d spee ds n ear  ground l eve lc aused v er ti c al mix ing.  T herefo re, de w  poi n t s actually dropp ed be f o re th e  fi rst t or nadoesf orme d, but nev ertheless s everal  fac torsovercam ethe lo wer  d ew pointst o produce  torn adoes.Am ongthe se wer e as t ronguppe r- lev el jet st r e am ,  c le a r s kies  caus in g da ytime hea t ing andins t ability ,str o n g syno p ti c - scale lift ing  lead i n g
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Category:American_people of Polish-Jewish descent_1984 Soviet_Union_tornado outbreak

The_1984_Soviet Union tornado_outbreak, also known_as the 1984 Ivanovo_tornado outbreak, was_one_of only three disastrous tornado outbreaks in modern Russian history (one of the others_being_the 1904_Moscow_tornado)_and the third-deadliest tornado outbreak_in European history. Occurring on_June 9, 1984,_the outbreak struck the Ivanovo and Yaroslavl regions_north_of Moscow, an_area over 400,000 km2. At least two of the eleven_known tornadoes were violent events, equal_to F4 or_higher_in_intensity on the Fujita_scale, based upon observed damages. The_main tornado, an F4, which was_up to  wide, caused extreme damage,_throwing heavy objects of  for_distances up to. Another tornado,_assessed to_have been at least F4,_occurred at Kostroma._Severe thunderstorms_also produced hail_up to  in weight, among_the heaviest hailstones_confirmed worldwide. In all, the entire_tornado_outbreak killed at_least_57_people (though_the exact death_toll_is unknown)_and_injured 804.

Meteorological synopsis
On June 8, 1984, a_negatively_tilted trough caused an extratropical low pressure_area to form over_the_coast of the Socialist_Republic of Romania (now non-Communist_Romania). Surface moisture moved north from_the Black_Sea and_caused nearby dew points to rise to ; though at that_time these were restricted to Romania_and the Ukrainian SSR,_dew points_were_higher than average_elsewhere._By 1800_UTC, developing thunderstorms over the Ukrainian SSR_spread overnight_into the Russian SFSR. Between 00_and 12 UTC on_June 9,_the strengthening low pressure area moved_north-northeast over the northwestern Russian SFSR_before undergoing occlusion. In the_meantime,_a_strong cold front rapidly advanced_along a line extending south from_the surface low,_then south of Minsk in the Byelorussian_SSR_(now Belarus), to near Bucharest. This_front_separated the drier air mass to_the_north_from the warm, moist air_mass near the Black Sea, and_strong wind speeds near ground level caused vertical mixing._Therefore, dew points_actually dropped before the first_tornadoes_formed,_but nevertheless several factors overcame the lower dew points to_produce tornadoes._Among these were_a strong upper-level jet stream, clear skies causing daytime heating_and instability, strong synoptic-scale lifting leading