PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
930 PM CDT SUN APR 25 2010
...PRELIMINARY INFORMATION FROM STORM DAMAGE SURVEYS
TODAY...
FOUR NWS STORM DAMAGE SURVEY TEAMS HAVE BEEN SURVEYING DAMAGE
FROM AROUND THE REGION CAUSED BY THE DEVASTATING STORMS OF
SATURDAY. THE FOLLOWING IS PRELIMINARY INFORMATION REGARDING
THE MAJOR STORM THAT MOVED FROM NORTHEAST LOUISIANA ACROSS
CENTRAL MISSISSIPPI.
NWS SURVEY TEAMS SURVEYED THE PATH OF THE STORM FROM ITS
START WEST OF TALLULAH, LOUISIANA TO AS FAR AS DURANT,
MISSISSIPPI. TORNADO DAMAGE...MUCH OF IT STRONG...WAS FOUND
ALONG THIS ENTIRE PATH...AT LEAST IN THOSE AREAS ACCESSIBLE
BY ROAD. BASED ON THESE SURVEYS...THIS IS A SUMMARY OF
THE INFORMATION SO FAR:
PATH LENGTH: 97 MILES...THIS LENGTH WILL INCREASE AS MORE
DAMAGE IS SURVEYED EAST OF TODAY'S SURVEY
MAXIMUM WIDTH: 1.75 MILES
RATING: EF4, WITH MAXIMUM WINDS OF 170 MPH
CASUALTIES: 10 TOTAL FATALITIES WITH DOZENS OF INJURIES
A NUMBER OF AREAS OF EF3 DAMAGE WITH ESTIMATED WINDS OF 150 TO 165
MPH WERE FOUND ALONG THE PATH. TWO AREAS OF EF4 DAMAGE WITH MAXIMUM
WINDS OF 170 MPH WERE FOUND...ONE IN YAZOO CITY...AND THE OTHER IN
HOLMES COUNTY.
ANOTHER SURVEY TEAM IS STILL SURVEYING DAMAGE IN CHOCTAW COUNTY
CAUSED BY THE SAME STORM. THIS DAMAGE HAS BEEN DETERMINED TO BE
AT LEAST HIGH END EF3. WHETHER OR NOT THIS IS A PART OF A
CONTINUOUS TORNADO PATH ALL THE WAY BACK TO ITS START IN
NORTHEAST LOUISIANA HAS YET TO BE DETERMINED. NWS SURVEY TEAMS
WILL BE IN HOLMES...ATTALA...AND CHOCTAW COUNTIES AGAIN MONDAY
TO TRY TO DETERMINE THIS...AND WILL ALSO BE ATTEMPTING TO
OBTAIN AERIAL DATA TO HELP CONFIRM A CONTINUOUS PATH.
IT MUST BE STRESSED THAT ALL OF THIS INFORMATION IS PRELIMINARY
AND SUBJECT TO LATER ADJUSTMENT. A TORNADO OF THIS STRENGTH AND
MAGNITUDE REQUIRES A TREMENDOUS AMOUNT OF DAMAGE SURVEYS AND DATA
ANALYSIS. THE NWS WILL CONTINUE TO PROVIDE UPDATES AS ADDITIONAL
INFORMATION IS OBTAINED...AND IS PLANNING TO HOLD A MEDIA BRIEFING
LATER THIS WEEK TO PROVIDE A FULL ANALYSIS OF THE STORM AND THE
DAMAGE SURVEY RESULTS.
THE NWS WOULD LIKE TO THANK ALL OF OUR PARTNERS IN LAW ENFORCEMENT
AND EMERGENCY MANAGEMENT FOR THEIR INVALUABLE ASSISTANCE IN
PERFORMING OUR DAMAGE SURVEYS.
Pelo menos cinco pessoas morreram e cerca de 50 ficaram feridas, oito delas em estado grave, em consequência dos tornados que arrasaram diversos pontos do estado americano de Oklahoma, informaram as autoridades locais.
O responsável pela direção de Gestão de Emergências de Oklahoma, Albert Ashwood, disse à rede de televisão "CNN" que três pessoas morreram no condado de Cleveland e outras duas faleceram no condado de Oklahoma, enquanto o número total de feridos passou de 50, mas não há certeza do total exato. Os tornados destruíram um grande número de casas e tombaram muitos veículos que se encontravam em seu caminho, incluindo caminhões. Também arrancaram árvores, postes elétricos e mobília urbana, como pontos de ônibus. O chefe de Polícia da cidade de Oklahoma informou que, só nesta cidade, foram 40 casas destruídas, só nesta urbe.
As operações de resgate foram prejudicadas por vários cabos de energia elétrica que estavam em postes que foram derrubados e estavam no chão. O governador do estado, Brad Henry, declarou: "dedicamos nossos pensamentos e nossas orações aos cidadãos de Oklahoma que tenham sido afetados pelas tempestades. Faremos todo o possível para ajudá-los nas horas e dias vindouros".
Os tornados se deslocam agora em direção ao estado do Kansas, ao norte de Oklahoma, perto da cidade de Wichita.
Agencia EFE
Chuva de granizo gigante semeou terror nos EUA
No passado domingo, a área metropolitana de Oklahoma, nos EUA, foi assolada por uma chuva de granizo gigante. 20 pessoas ficaram feridas.
O fenómeno foi registado por diversos cidadãos em vídeos que atestam a violência das condições meteorológicas.
Este vídeo é qualquer coisa de irreal ! Nunca pensei que tal fenómeno fosse possível ocorrer . A natureza consegue fazer do homem um ser tão insignificante quando se enfurece
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1130 AM CDT WED MAY 19 2010
VALID 191630Z - 201200Z
...THERE IS A HIGH RISK OF SVR TSTMS OVER PARTS OF CNTRL OK...
...THERE IS A MDT RISK OF SVR TSTMS SURROUNDING THE HIGH RISK AREA
OVER A LARGE PART OF OK AND N TX...
...THERE IS A SLGT RISK OF SVR TSTMS SURROUNDING THE MDT RISK
AREA...FROM SW KS INTO THE LWR MS VLY...
...SIGNIFICANT SVR TSTM OUTBREAK EXPECTED THIS AFTN THROUGH TONIGHT
FOR A LARGE PART OF OK AND ADJACENT N TX...
...SYNOPSIS...
NE CO UPR LOW WILL MOVE SLOWLY E INTO CNTRL KS BY 12Z THU AS
ASSOCIATED SHORTWAVE TROUGH NOW EXTENDING SSW INTO NM SWEEPS E INTO
CNTRL OK/N CNTRL TX. BAND OF SEASONABLY STRONG CYCLONIC WSW FLOW ON
S SIDE OF LOW WILL PERSIST OVER THE SRN PLNS...ATOP MODERATE SSWLY
LLJ. MAIN SYNOPTIC FRONTAL ZONE EXTENDING SE FROM TX PANHANDLE SFC
LOW SHOULD EDGE SLOWLY NE THROUGH THE PERIOD... WITH MOVEMENT OFFSET
BY CONVECTIVE OUTFLOW. S OF THE FRONT AND E OF LEE TROUGH/DRY LINE
OVER THE ERN PANHANDLE...LOW LVL MOISTURE WILL CONTINUE TO SPREAD
NWD WITH LLJ.
...SRN PLNS/ARKLATEX THROUGH EARLY WED...
OVERNIGHT OK MCS SHOULD FURTHER WEAKEN AS CONTINUES GENERALLY ESE
INTO NW AR EARLY THIS AFTN. ELEVATED STORMS...A FEW OF WHICH MAY BE
ACCOMPANIED BY HAIL...LIKELY WILL PERSIST THROUGH THE DAY ATOP W/E
OUTFLOW BOUNDARY LEFT BY THE MCS.
BY MID TO LATE AFTN...COMBINATION OF SFC HEATING...CONTINUED LOW LVL
MOISTURE INFLOW...AND LEADING EDGE OF ASCENT WITH NM UPR TROUGH
EXPECTED TO SUPPORT NEW SFC-BASED STORMS NEAR INTERSECTION OF
OUTFLOW BOUNDARY WITH EWD-MOVING LEE TROUGH/DRY LINE OVER WRN OK. A
BIT LATER...SCTD DEVELOPMENT SHOULD EXTEND SWD ON THE TROUGH/DRY
LINE INTO NW TX...AND EWD ALONG OUTFLOW BOUNDARY INTO CNTRL OK.
THE STORMS WILL QUICKLY BECOME SUPERCELLS GIVEN 40-50 KT DEEP WSWLY
SHEAR AND SBCAPE OF 2500-3000 J/KG. THE SETUP APPEARS MOST
FAVORABLE FOR LARGE...RELATIVELY SLOW MOVING INTENSE STORMS WITH
LARGE HAIL. GIVEN SIZABLE LOW LVL DIRECTIONAL COMPONENT TO
SHEAR...ESPECIALLY NEAR REMNANT OUTFLOW BOUNDARY AND/OR FRONT...A
COUPLE STRONG TORNADOES ALSO MAY OCCUR.
WITH THE LLJ LIKELY TO STRENGTHEN AND VEER DUE TO DIURNAL INFLUENCES
AND THE CONTINUED EWD MOVEMENT OF NM TROUGH...EXPECT THE OK/N TX
STORMS TO EVOLVE INTO A LARGE MCS EARLY TONIGHT. COUPLED WITH
INCREASINGLY DIFLUENT HI LVL FLOW...THIS SYSTEM SHOULD CONTINUE ESE
INTO AR BY EARLY WED...WITH AN ATTENDANT THREAT FOR DMGG WIND/HAIL
AND VERY HEAVY RAIN.
...ARKLATEX TO CNTRL GULF CST THIS AFTN...
SFC HEATING ALONG/S AFOREMENTIONED SYNOPTIC FRONT EXTENDING SE FROM
SRN PLNS LOW MAY SUPPORT SCTD DIURNAL STORMS FROM THE ARKLATEX SE TO
THE CNTRL GULF CST TODAY. THIS ACTIVITY WILL BE CONDITIONAL ON
HEATING AND LOW LVL CONVERGENCE BECOMING LOCALLY SUFFICIENT TO
OVERCOME WEAK CIN OVER REGION. AMPLE INSTABILITY/ PW WILL BE
PRESENT FOR STRONG UPDRAFTS AND PERHAPS ISOLD SVR WIND GUSTS/HAIL.
BUT WEAK SHEAR SHOULD LIMIT STORM ORGANIZATION/ PERSISTENCE.
..CORFIDI/HURLBUT.. 05/19/2010
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