Texas Spring-2015

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dhweather
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#981 Postby dhweather » Mon Apr 27, 2015 7:09 am

WFAA LIVE HD CHOPPER FEED

http://www.wfaa.com/videos/news/local/2 ... /14336082/

lots of flooding near Cleburne
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#982 Postby TeamPlayersBlue » Mon Apr 27, 2015 8:20 am

MCV look incredible. We have had a few of them in SE Tx in recent memory but typically they form that type of structure just off shore. Incredible.
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#983 Postby Ntxw » Mon Apr 27, 2015 8:24 am

Us DFW folks better count our blessings last night. 5-7+ inches of rainfall, tornados, and constant bombardment of hail over and over. Sit that one more row of counties (30 miles north) and 4-6m people would've been expensive and deadly.

I haven't heard anything in terms of catastrophic damage hopeful that continues. Slight risk of severe today. ULL will slowly cross the southern plains, clouds and on and off rain chances through tomorrow night. After that we clear out and remain seasonable and dry the rest of the week through the weekend. Pattern will reload next week as rain chances returns for May.

The lakes around North Texas are in good shape. Many western and southwestern lakes will rise significantly the coming days and with an expected wet May we'll escape this summer. In a few weeks the last remaining stronghold of drought near the falls will be left.
Last edited by Ntxw on Mon Apr 27, 2015 8:50 am, edited 1 time in total.
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Re:

#984 Postby dhweather » Mon Apr 27, 2015 8:49 am

Ntxw wrote:Us DFW folks better count our blessings last night. 5-7+ inches of rainfall, tornados, and constant bombardment of hail over and over. Sit that one more row of counties (30 miles north) and 4-6m people would've been expensive and deadly.

I haven't heard anything in terms of catastrophic damage hopeful that continues. Slight risk of severe today.



Truth - had that gone through the I-20/I-30 corridor - it would have been catastrophic. 3-4" of rain in an hour on soil is one thing, on mostly concrete is another. the amount of hail damage would have been insane.
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#985 Postby Tireman4 » Mon Apr 27, 2015 12:24 pm

From HGX AFD:

NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1100 AM CDT MON APR 27 2015

.UPDATE...
SOME ADDITIONAL INFORMATION...AN NWS STORM SURVEY IS ENROUTE TO
THE GRIMES COUNTY AREA TO ASSESS DAMAGE. WE WILL UPDATE WITH
INFORMATION AS WE RECEIVE IT FROM THE ASSESSMENT.

PEAK WINDS MEASURED LAST NIGHT
CONROE ASOS 62 MPH AT 435 AM
8SE OF NAVASOTA 55 MPH AT 412 AM
HUNTSVILLE ASOS 54 MPH AT 452 AM
1N OF WALLER 50 MPH AT 422 AM
BRENHAM AWOS 49 MPH AT 335 AM

45



&&

.PREV DISCUSSION... /ISSUED 1040 AM CDT MON APR 27 2015/

UPDATE...
THE AREA HAS BEEN STABILIZED FOR THE MORNING HOURS. HAVE PARED
BACK THE RAIN CHANCES THIS MORNING...BUT...THIS AFTERNOON IS A
VERY DIFFERENT STORY. A SQUALL LINE THAT RACED THROUGH THE REGION
KNOCKING DOWN TREES IS WELL INTO LA WITH SUBSIDENCE/DRYING ACROSS
THE NORTHERN CWA. OUTFLOW BOUNDARY (WITH A SMALL CLUSTER OF
STORMS) IN THE NEARSHORE WATERS WITH SURFACE DEWPOINTS DOWN TO
63-67 OVER SETX. LOW LEVEL CONVERGENCE CURRENTLY STRETCHES FROM
THE NEARSHORE WATERS UP THROUGH MATAGORDA BAY TO GIDDINGS TO JUST
WEST OF FORT WORTH. WATER VAPOR/UA CLEARLY SHOWS A DRYING TREND
ALOFT WITH STRONG SW FLOW OF 50+ KNOTS AT 500MB AND 80+ KNOTS AT
300MB. AS WE HEAT UP AND THE UPPER LOW NEAR WICHITA FALLS
CONTINUES TO TREK EAST THIS SHOULD PLACE SETX IN A FAVORABLE
REGION FOR SEVERE WEATHER WITH SYNOPTIC SCALE LIFT...LL
CONVERGENCE AND A RAPIDLY DESTABILIZING ATMOSPHERE. SB CAPE
VALUES SOAR TO 3500-4500 J/KG OVER THE NORTH WITH THE
AFOREMENTIONED SHEAR ALOFT AND LOW LEVELS ONLY SOMEWHAT SHEARED
HIGHLIGHT THE POTENTIAL FOR HAIL/DAMAGING WINDS/ISOLATED
TORNADOES...THOUGH PROBABLY A LOWER THREAT FOR TORNADOES BUT THAT
IS A LOT OF CAPE IF WE CAN REACH THE 80 DEGREE MARK. THE STORMS
SHOULD SWING EASTWARD THROUGH THE EVENING HOURS ENDING THE THREAT
OF SEVERE WEATHER. SPC HAS KEPT THE AREA IN A SLIGHT RISK. HEAVY
RAIN THREAT POSSIBLE BUT SHOULD BE MORE ISOLATED IN NATURE. COLD
FRONT SHOULD ARRIVE IN THE HOUSTON AREA AFTER 2 AM WITH MODERATE
COLD ADVECTION. BREEZY CONDITIONS EXPECTED TUESDAY.

45

PREV DISCUSSION... /ISSUED 717 AM CDT MON APR 27 2015/

AVIATION...
CONFIDENCE IN THE FORECAST IS LOW DUE TO THE VARIABILITY IN MODEL
SOLUTIONS. THE HIGH RESOLUTION HRRR MODEL AGREED WITH THE GLOBAL
MODELS IN MOVING THE CURRENT CONVECTION EAST OF THE AREA WHILE
POSSIBLY DEVELOPING MORE SHOWERS AND THUNDERSTORMS THIS AFTERNOON
AS THE UPPER LOW IN NM MOVES INTO THE SOUTHERN PLAINS.

FOR THIS MORNING...DO EXPECT VFR CONDITIONS FROM KIAH NORTHWARD.
THE MVFR TO IFR CONDITIONS FROM KHOU TO THE COAST SHOULD IMPROVE
BY THE MID MORNING PERIOD. WILL ADD THE MENTION OF SHOWERS OR
THUNDERSTORMS THIS AFTERNOON INTO THE EARLY EVENING.

ALTHOUGH GUIDANCE WAS FORECASTING LOW CEILINGS...RAW MODEL OUTPUT
SUGGESTED BEST CHANCES WILL BE MORE TOWARD THE COAST. AT LEAST
MVFR CONDITIONS ARE POSSIBLE FROM KHOU TO THE COAST AHEAD OF THE
COLD FRONT. THE FRONT IS EXPECTED TO AT LEAST MOVE THROUGH KCLL
AND KUTS BY AROUND 08Z...AND SHOULD MOVE THROUGH KCXO AND KIAH BY
12Z.

40

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL) 81 60 67 49 72 / 50 40 20 10 0
HOUSTON (IAH) 83 63 70 49 74 / 50 40 20 10 0
GALVESTON (GLS) 80 69 73 56 71 / 50 20 10 10 0

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL 4 PM CDT THIS
AFTERNOON FOR THE FOLLOWING ZONES: GALVESTON BAY...WATERS
FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM...WATERS FROM HIGH
ISLAND TO FREEPORT OUT 20 NM.
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Re: Re:

#986 Postby Texas Snowman » Mon Apr 27, 2015 12:57 pm

dhweather wrote:
Ntxw wrote:Us DFW folks better count our blessings last night. 5-7+ inches of rainfall, tornados, and constant bombardment of hail over and over. Sit that one more row of counties (30 miles north) and 4-6m people would've been expensive and deadly.

I haven't heard anything in terms of catastrophic damage hopeful that continues. Slight risk of severe today.



Truth - had that gone through the I-20/I-30 corridor - it would have been catastrophic. 3-4" of rain in an hour on soil is one thing, on mostly concrete is another. the amount of hail damage would have been insane.


All of that is true, very true. Put the big wedge (near Rio Vista) into DFW and let it move very slowly and wow. (Don't know how strong that one was, but the photo I saw of that wedge backlit by lightning looked like one of those you don't want to mess with).

While we don't know how strong the various tornadoes were yet, I also got to thinking about this idea earlier today: what if those tornadoes had not skirted the outskirts of those communities yesterday afternoon and evening?

What if instead of just missing the towns of Comanche, Dublin, Glen Rose, Stephenville, Cleburne, Rio Vista and Grandview, instead they had plowed right through those communities?

Even if they were only EF-2 strength (and not higher), then instead of a night that research scientists and weather geeks will remember, it might have been one of the worst tornado events in recent Texas history.
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#987 Postby TeamPlayersBlue » Mon Apr 27, 2015 1:02 pm

Sounds like another interesting day is ahead.
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#988 Postby Texas Snowman » Mon Apr 27, 2015 1:15 pm

Fort Worth NWS says there were 19 tornado reports yesterday. We'll see how many different tornadoes there were when their survey is done.

But I got to wondering how many actual tornado warnings they issued yesterday (and maybe how many San Angelo issued for a few of those early storms). It was almost a continuous barrage of tornado warnings from mid-afternoon until after midnight.

Also wonder how many reports of baseball/softball sized hail there ended up being.
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#989 Postby Texas Snowman » Mon Apr 27, 2015 2:41 pm

http://thescoopblog.dallasnews.com/2015 ... oplex.html

Dallas Morning News reports on its Scoop Blog that NWS survey teams have confirmed three EF-0 tornadoes in the Rio Vista area. A fourth tornado has also been confirmed to the east of Glen Rose in Johnson County.
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#990 Postby gboudx » Mon Apr 27, 2015 4:29 pm

Lake Lavon has started a slow water release due to being above conservation pool level. Same at Jim Chapman. Kinda hard to believe these lakes were so low just a few months ago.
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Re:

#991 Postby AggieSpirit » Mon Apr 27, 2015 4:36 pm

gboudx wrote:Lake Lavon has started a slow water release due to being above conservation pool level. Same at Jim Chapman. Kinda hard to believe these lakes were so low just a few months ago.


I hate that. They should wait until it's 1.5 feet above pool. Cause the nearing summer evaporation effect + Dallas usage will bring that thing down on it's own.

Also.... this will help keep Dallas from pumping massive amounts of water from Fork to Tawakoni too! :D
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Re: Texas Spring-2015

#992 Postby SouthernMet » Mon Apr 27, 2015 5:05 pm

From the SPC...
MESOANALYSIS SUGGESTS THAT MODERATE
INSTABILITY IS NOW LOCATED ALONG THE MOIST AXIS WITH MLCAPE IN THE
1000 TO 2500 J/KG RANGE. IN ADDITION...A 60 TO 75 KT MID-LEVEL JET
IS LOCATED IN CNTRL TX WHICH IS CREATING STRONG DEEP LAYER SHEAR
WHICH SHOULD BE FAVORABLE FOR ROTATING STORMS. AS CELLS CONTINUE TO
INITIATE ALONG THE FRONT...THE INSTABILITY...DEEP-LAYER SHEAR AND
STEEP MID-LEVEL LAPSE RATES WILL BE FAVORABLE FOR SUPERCELLS WITH
LARGE HAIL. ALTHOUGH THIS MAY BE THE GREATEST THREAT...LOW-LEVEL
SHEAR SHOULD BE STRONG ENOUGH FOR A TORNADO OR TWO. ISOLATED
DAMAGING WIND GUSTS WILL ALSO BE POSSIBLE. THE SEVERE THREAT MAY
GRADUALLY EXPAND SWD INTO THE AUSTIN AND COLLEGE STATION AREAS LATE
THIS AFTERNOON INTO EARLY THIS EVENING.
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Re: Re:

#993 Postby dhweather » Mon Apr 27, 2015 5:21 pm

AggieSpirit wrote:
gboudx wrote:Lake Lavon has started a slow water release due to being above conservation pool level. Same at Jim Chapman. Kinda hard to believe these lakes were so low just a few months ago.


I hate that. They should wait until it's 1.5 feet above pool. Cause the nearing summer evaporation effect + Dallas usage will bring that thing down on it's own.

Also.... this will help keep Dallas from pumping massive amounts of water from Fork to Tawakoni too! :D


Agreed - with no rain in the forecast after today, I'd hold absolutely as much as I could in Lavon.
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Re: Texas Spring-2015

#994 Postby Shoshana » Mon Apr 27, 2015 6:23 pm

SouthernMet wrote:From the SPC...
MESOANALYSIS SUGGESTS THAT MODERATE
INSTABILITY IS NOW LOCATED ALONG THE MOIST AXIS WITH MLCAPE IN THE
1000 TO 2500 J/KG RANGE. IN ADDITION...A 60 TO 75 KT MID-LEVEL JET
IS LOCATED IN CNTRL TX WHICH IS CREATING STRONG DEEP LAYER SHEAR
WHICH SHOULD BE FAVORABLE FOR ROTATING STORMS. AS CELLS CONTINUE TO
INITIATE ALONG THE FRONT...THE INSTABILITY...DEEP-LAYER SHEAR AND
STEEP MID-LEVEL LAPSE RATES WILL BE FAVORABLE FOR SUPERCELLS WITH
LARGE HAIL. ALTHOUGH THIS MAY BE THE GREATEST THREAT...LOW-LEVEL
SHEAR SHOULD BE STRONG ENOUGH FOR A TORNADO OR TWO. ISOLATED
DAMAGING WIND GUSTS WILL ALSO BE POSSIBLE. THE SEVERE THREAT MAY
GRADUALLY EXPAND SWD INTO THE AUSTIN AND COLLEGE STATION AREAS LATE
THIS AFTERNOON INTO EARLY THIS EVENING.


I'm trying really hard not to get worked up until I see a watch or warning. But I admit it's good to know that there might be a watch or warning. I wore myself out yesterday and last night watching all the storms and waiting for something to come through here. I was so glad there was no hail.
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Re: Re:

#995 Postby Ntxw » Mon Apr 27, 2015 7:26 pm

dhweather wrote:
AggieSpirit wrote:
gboudx wrote:Lake Lavon has started a slow water release due to being above conservation pool level. Same at Jim Chapman. Kinda hard to believe these lakes were so low just a few months ago.


I hate that. They should wait until it's 1.5 feet above pool. Cause the nearing summer evaporation effect + Dallas usage will bring that thing down on it's own.

Also.... this will help keep Dallas from pumping massive amounts of water from Fork to Tawakoni too! :D


Agreed - with no rain in the forecast after today, I'd hold absolutely as much as I could in Lavon.


They will be releasing a lot more in the coming weeks. Major lakes are at or near capacity, the ground is well saturated, and El Nino this week has reached moderate levels at 1C. The stage is set as in similar past years (1997, 2002, 2004, 2007) for excess water. Anything that falls beyond this point slowly becomes a problem. Fairly good signal of a potential flooding event as another slow moving baja low from the subtropics traverses the southern plains early May. Low heights have been a magnet for them in our region.

Still waiting in Austin.
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Re: Texas Spring-2015

#996 Postby weatherdude1108 » Mon Apr 27, 2015 8:22 pm

Shoshana wrote:
SouthernMet wrote:From the SPC...
MESOANALYSIS SUGGESTS THAT MODERATE
INSTABILITY IS NOW LOCATED ALONG THE MOIST AXIS WITH MLCAPE IN THE
1000 TO 2500 J/KG RANGE. IN ADDITION...A 60 TO 75 KT MID-LEVEL JET
IS LOCATED IN CNTRL TX WHICH IS CREATING STRONG DEEP LAYER SHEAR
WHICH SHOULD BE FAVORABLE FOR ROTATING STORMS. AS CELLS CONTINUE TO
INITIATE ALONG THE FRONT...THE INSTABILITY...DEEP-LAYER SHEAR AND
STEEP MID-LEVEL LAPSE RATES WILL BE FAVORABLE FOR SUPERCELLS WITH
LARGE HAIL. ALTHOUGH THIS MAY BE THE GREATEST THREAT...LOW-LEVEL
SHEAR SHOULD BE STRONG ENOUGH FOR A TORNADO OR TWO. ISOLATED
DAMAGING WIND GUSTS WILL ALSO BE POSSIBLE. THE SEVERE THREAT MAY
GRADUALLY EXPAND SWD INTO THE AUSTIN AND COLLEGE STATION AREAS LATE
THIS AFTERNOON INTO EARLY THIS EVENING.


I'm trying really hard not to get worked up until I see a watch or warning. But I admit it's good to know that there might be a watch or warning. I wore myself out yesterday and last night watching all the storms and waiting for something to come through here. I was so glad there was no hail.


Me too! I was up watching the line of storms all night on edge wondering. Then thankful. I'm drained. I love the RAIN.
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#997 Postby dhweather » Mon Apr 27, 2015 8:23 pm

If you look at radar loops right now, there's a meso low moving over Forney
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Re:

#998 Postby gboudx » Mon Apr 27, 2015 8:49 pm

dhweather wrote:If you look at radar loops right now, there's a meso low moving over Forney


I had to drive back to Rockwall in it, from Forney. Forney soccer association didn't cancel my sons 7:25 game so they played for 20 mins until lightning forced cancellation. What a waste of time making that 1 hour round trip when you could see the solid line approaching. But they've missed 5 games due to ice, snow and rain so I guess they were hoping the game would make it to halftime. Nope.
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Re: Texas Spring-2015

#999 Postby Texas Snowman » Mon Apr 27, 2015 11:13 pm

Fort Worth NWS initial survey report - 8 tornadoes, all EF-0.

------

http://forecast.weather.gov/product.php ... glossary=1


000
NOUS44 KFWD 280018
PNSFWD
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-281230-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
718 PM CDT MON APR 27 2015

...NWS DAMAGE SURVEY FOR THE 4/26/15 TORNADOES...

SUPERCELL THUNDERSTORMS DEVELOPED JUST SOUTH OF INTERSTATE 20 ACROSS
EASTLAND AND COMANCHE COUNTIES...AND MOVED EAST-NORTHEAST ROUGHLY
FOLLOWING THE SHAPE OF INTERSTATE 20 WEST OF INTERSTATE 35 TO THE
INTERSTATE 35W CORRIDOR. THESE SUPERCELLS PRODUCED VERY LARGE HAIL
AND SEVERAL EF-0 TORNADOES FROM SUNDAY AFTERNOON THROUGH THE LATE
EVENING HOURS OF THE DAY. THE TORNADOES PRIMARILY OCCURRED IN
SPARSELY POPULATED AREAS...PRIMARILY DAMAGING TREES AND PRODUCING
LIGHT DAMAGE TO RESIDENCES AND BUSINESSES IN THEIR PATH. ONE OF
THE MOST NOTABLE FACTS OF THE EVOLUTION OF THIS EVENT WAS THE FACT
THAT ONE OF THE SUPERCELLS BECAME NEARLY STATIONARY OVER JOHNSON
COUNTY FOR 2 TO 3 HOURS. THIS NEARLY STATIONARY STORM PRODUCED 4
TORNADOES AS ITS UPDRAFT CYCLED OVER SOUTHERN JOHNSON COUNTY. THE
STORM ALSO PRODUCED A SWATH OF STRAIGHT LINE WIND DAMAGE FROM
FISHERMAN`S PARADISE IN FAR SOUTHWEST JOHNSON COUNTY TO THE
NORTHEAST NEAR RIO VISTA. THE MOST DESTRUCTIVE ASPECT OF THIS STORM
WAS LIKELY THE FLASH FLOODING IT PRODUCED AS THIS NEARLY STATIONARY
STORM DUMPED OVER 6 INCHES OF RAIN OVER LARGE PORTIONS OF CENTRAL
AND EASTERN JOHNSON COUNTY. MANY COUNTY ROADS ACROSS JOHNSON
COUNTY REMAINED CLOSED DURING THE DAMAGE SURVEY ON MONDAY DUE TO
THE WIDESPREAD FLOODING THAT BEGAN SUNDAY EVENING. THERE WERE
NO SERIOUS INJURIES AND NO FATALITIES REPORTED DURING THIS SEVERE
WEATHER EVENT.

.TORNADO NUMBER 1...

RATING: EF-0
ESTIMATED PEAK WIND: 75 MPH
PATH LENGTH /STATUTE/: 1 MILE
PATH WIDTH /MAXIMUM/: 50 YARDS
FATALITIES: 0
INJURIES: 0

START DATE: 4/26/2015
START TIME: 3:33 PM CDT
START LOCATION: 12.5 NW SIDNEY

END DATE: 4/26/2015
END TIME: 3:35 PM CDT
END LOCATION: 11.5 NW SIDNEY

.TORNADO NUMBER 2...

RATING: EF-0
ESTIMATED PEAK WIND: 70 MPH
PATH LENGTH /STATUTE/: 0.7 MILES
PATH WIDTH /MAXIMUM/: 50 YARDS
FATALITIES: 0
INJURIES: 0

START DATE: 4/26/2015
START TIME: 4:15 PM CDT
START LOCATION: 1 NE PROCTOR

END DATE: 4/26/2015
END TIME: 4:16 PM CDT
END LOCATION: 2 NE PROCTOR

.TORNADO NUMBER 3...

RATING: EF-0
ESTIMATED PEAK WIND: 70 MPH
PATH LENGTH /STATUTE/: 1.2 MILES
PATH WIDTH /MAXIMUM/: 70 YARDS
FATALITIES: 0
INJURIES: 0

START DATE: 4/26/2015
START TIME: 4:30 PM CDT
START LOCATION: 3 SW DUBLIN

END DATE: 4/26/2015
END TIME: 4:31 PM CDT
END LOCATION: 2 SW DUBLIN

.TORNADO NUMBER 4...

RATING: EF-0
ESTIMATED PEAK WIND: 65 MPH
PATH LENGTH /STATUTE/: 0.2 MILES
PATH WIDTH /MAXIMUM/: 25 YARDS
FATALITIES: 0
INJURIES: 0

START DATE: 4/26/2015
START TIME: 5:38 PM CDT
START LOCATION: 5 WSW GLEN ROSE

END DATE: 4/26/2015
END TIME: 5:38 PM CDT
END LOCATION: 5 WSW GLEN ROSE

.TORNADO NUMBER 5...

RATING: EF-0
ESTIMATED PEAK WIND: 85 MPH
PATH LENGTH /STATUTE/: 2.5 MILES
PATH WIDTH /MAXIMUM/: 200 YARDS
FATALITIES: 0
INJURIES: 0

START DATE: 4/26/2015
START TIME: 9:53 PM CDT
START LOCATION: 10 W RIO VISTA

END DATE: 4/26/2015
END TIME: 9:57 PM CDT
END LOCATION: 8 W RIO VISTA

.TORNADO NUMBER 6...

RATING: EF-0
ESTIMATED PEAK WIND: 85 MPH
PATH LENGTH /STATUTE/: 2.2 MILES
PATH WIDTH /MAXIMUM/: 200 YARDS
FATALITIES: 0
INJURIES: 0

START DATE: 4/26/2015
START TIME: 10:33 PM CDT
START LOCATION: IN RIO VISTA

END DATE: 4/26/2015
END TIME: 10:36 PM CDT
END LOCATION: 2 NE RIO VISTA

.TORNADO NUMBER 7...

RATING: EF-0
ESTIMATED PEAK WIND: 85 MPH
PATH LENGTH /STATUTE/: 5.4 MILES
PATH WIDTH /MAXIMUM/: 200 YARDS
FATALITIES: 0
INJURIES: 0

START DATE: 4/26/2015
START TIME: 11:01 PM CDT
START LOCATION: 2 E RIO VISTA

END DATE: 4/26/2015
END TIME: 11:10 PM CDT
END LOCATION: 2 NE RIO VISTA

SURVEY_SUMMARY: THIS TORNADO APPEARED TO ROTATE COUNTERCLOCKWISE
WITHIN A MUCH LARGER...APPROXIMATELY 1.5 MILE WIDTH...CIRCULATION
WITHIN THE ROTATING UPDRAFT OF THE PARENT SUPERCELL THUNDERSTORM.
THE PATH TOOK A NEARLY HORSESHOE SHAPE TRACK AS IT LOOPED IN A
COUNTERCLOCKWISE DIRECTION EAST OF RIO VISTA.


.TORNADO NUMBER 8...

RATING: EF-0
ESTIMATED PEAK WIND: 80 MPH
PATH LENGTH /STATUTE/: 1.8 MILES
PATH WIDTH /MAXIMUM/: 75 YARDS
FATALITIES: 0
INJURIES: 0

START DATE: 4/26/2015
START TIME: 11:16 PM CDT
START LOCATION: 2 E RIO VISTA

END DATE: 4/26/2015
END TIME: 11:19 PM CDT
END LOCATION: 2 NE RIO VISTA

SURVEY_SUMMARY: RADAR AND DAMAGE SURVEY EVIDENCE SUGGESTS THAT THIS
WAS A CLOCKWISE ROTATING TORNADO.

EF SCALE: THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO THE
FOLLOWING CATEGORIES.

EF0...WEAK......65 TO 85 MPH
EF1...WEAK......86 TO 110 MPH
EF2...STRONG....111 TO 135 MPH
EF3...STRONG....136 TO 165 MPH
EF4...VIOLENT...166 TO 200 MPH
EF5...VIOLENT...>200 MPH

NOTE:
THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT AND PUBLICATION IN
NWS STORM DATA.

$$

CAVANAUGH/FOX
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Texas Snowman
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#1000 Postby Texas Snowman » Mon Apr 27, 2015 11:27 pm

:uarrow: Very interesting item from above damage survey:

TORNADO NUMBER 7...

RATING: EF-0
ESTIMATED PEAK WIND: 85 MPH
PATH LENGTH /STATUTE/: 5.4 MILES
PATH WIDTH /MAXIMUM/: 200 YARDS
FATALITIES: 0
INJURIES: 0

START DATE: 4/26/2015
START TIME: 11:01 PM CDT
START LOCATION: 2 E RIO VISTA

END DATE: 4/26/2015
END TIME: 11:10 PM CDT
END LOCATION: 2 NE RIO VISTA

SURVEY_SUMMARY: THIS TORNADO APPEARED TO ROTATE COUNTERCLOCKWISE
WITHIN A MUCH LARGER...APPROXIMATELY 1.5 MILE WIDTH...CIRCULATION
WITHIN THE ROTATING UPDRAFT OF THE PARENT SUPERCELL THUNDERSTORM.
THE PATH TOOK A NEARLY HORSESHOE SHAPE TRACK AS IT LOOPED IN A
COUNTERCLOCKWISE DIRECTION EAST OF RIO VISTA.[/
0 likes   
The above post and any post by Texas Snowman is NOT an official forecast and should not be used as such. It is just the opinion of the poster and may or may not be backed by sound meteorological data. It is NOT endorsed by any professional institution including storm2k.org. For official information, please refer to NWS products.


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