Memorial Day Weekend Outbreak 2008

[Bunkertor]

[CrazyC83]

Unconfirmed report: part of Parkersburg, IA destroyed - search and rescue underway

[wbug1]

2228 4 NNW WATERLOO AIRPORT BLACK HAWK IA 4261 9244 TELEVISION VIEWER REPORTED LARGE TORNADO AT THE INTERSECTION OF COUNTY HIGHWAY C 57 AND HIGHWAY 218. (DMX)
2229 CEDAR FALLS BLACK HAWK IA 4252 9245 TORNADO AT U.S. 57 AND U.S. 218 IN THE NORTHEAST PART OF CEDAR FALLS. (DMX)

[CrazyC83]

Report from KCRG: House FLATTENED near Dunkerton

[Cyclenall]

There should be a tornado emergency for Dunkerton, IA.

[KWT]

Wow what an amazing sat. image there, those are huge cells with mammoth anvils!

000
WFUS53 KICT 252254
TORICT
KSC009-167-260000-
/O.NEW.KICT.TO.W.0026.080525T2254Z-080526T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WICHITA KS
554 PM CDT SUN MAY 25 2008

THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A

* TORNADO WARNING FOR...
NORTHWESTERN BARTON COUNTY IN CENTRAL KANSAS.
RUSSELL COUNTY IN CENTRAL KANSAS.

* UNTIL 700 PM CDT.

* AT 551 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
DANGEROUS STORM WAS LOCATED NEAR MILBERGER...OR 15 MILES SOUTHWEST
OF RUSSELL...MOVING NORTHEAST AT 25 MPH.

* LOCATIONS WITHIN THE WARNING INCLUDE...
BUNKER HILL...DORRANCE...LUCAS...MILBERGER...RUSSELL...RUSSELL
AIRPORT...WILSON LAKE.

THIS IS A DANGEROUS STORM. MOVE INTO YOUR TORNADO SHELTER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE...MOVE INTO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY STRUCTURE.

LARGE HAIL AND DAMAGING THUNDERSTORM WINDS ARE ALSO EXPECTED WITH
THIS STORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR SOUTH CENTRAL KANSAS.

LAT...LON 3912 9848 3902 9848 3902 9849 3901 9848
3897 9849 3877 9848 3864 9902 3880 9905
TIME...MOT...LOC 2254Z 245DEG 22KT 3871 9899

$$

KRC

[CrazyC83]

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
557 PM CDT SUN MAY 25 2008

IAC013-252315-
/O.CON.KDMX.TO.W.0017.000000T0000Z-080525T2315Z/
BLACK HAWK IA-
557 PM CDT SUN MAY 25 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHEASTERN BLACK HAWK COUNTY...

AT 556 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND STORM
SPOTTERS WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO. THIS
TORNADO WAS LOCATED NEAR DUNKERTON...OR NEAR CUTSHAW BRIDGE STATE
ACCE...MOVING EAST AT 39 MPH.

AS RECENTLY AS 555 PM...A TORNADO WAS STILL BEING REPORTED AND A
HOUSE DESTROYED JUST NORTH OF DUNKERTON.

IN ADDITION...THIS STORM IS PRODUCING HAIL LARGER THAN GOLFBALL SIZE.


THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS
STORM IS CAPABLE OF PRODUCING STRONG TO VIOLENT TORNADOES. IF YOU ARE
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY!

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR IOWA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 900 PM CDT
SUNDAY EVENING FOR NORTHWESTERN IOWA.

LAT...LON 4245 9208 4251 9231 4263 9253 4264 9242
4264 9208 4247 9208 4246 9208
TIME...MOT...LOC 2257Z 275DEG 34KT 4257 9208

$$

[CrazyC83]

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
600 PM CDT SUN MAY 25 2008

IAC019-252345-
/O.CON.KDVN.TO.W.0017.000000T0000Z-080525T2345Z/
BUCHANAN IA-
600 PM CDT SUN MAY 25 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR BUCHANAN
COUNTY...

AT 559 PM CDT...TRAINED SPOTTERS REPORTED A LARGE TORNADO ONE HALF
MILE WIDE 2 MILES WEST OF FAIRBANK. THIS TORNADO WAS MOVING EAST AT
23 MPH.

THE TORNADO WILL BE NEAR...
FAIRBANK...NOW!
LITTLETON AROUND 610 PM CDT...
OTTERVILLE AROUND 620 PM CDT...
FONTANA COUNTY PARK AND HAZLETON AROUND 625 PM CDT...
AURORA AROUND 645 PM CDT...

THIS TORNADO IS CAPABLE OF PRODUCING SIGNIFICANT STRUCTURAL DAMAGE TO
BUILDINGS. MOVE TO A SUBSTANTIAL SHELTER NOW!

THIS STORM HAS ALREADY PRODUCED A TORNADO AND REMAINS A THREAT.

THIS STORM IS ALSO CAPABLE OF PRODUCING LARGE HAIL THE SIZE OF
BASEBALLS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR EASTERN IOWA AND NORTHEAST MISSOURI.

LAT...LON 4237 9161 4237 9207 4264 9208 4265 9162
TIME...MOT...LOC 2300Z 271DEG 20KT 4258 9210

$$

[Bunkertor]

There should be a tornado emergency for Dunkerton, IA.

And there should be an exceptional upgrade to high risk, i think

[wbug1]

Tornado warning near federal dam, MN and moving east toward grand rapids.

[KWT]

Sounds like a powerful cell that one, large baseball sized hail is something beyond my imagination, when we had marble sized hail at my place about 2 months ago I thought that was large but baseball is obviously amazingly larger!

[CrazyC83]

There should be a tornado emergency for Dunkerton, IA.

And there should be an exceptional upgrade to high risk, i think

Maybe at 0100Z, but it is rare to upgrade at that time.

[KWT]

Well given the sheer amount of warnings that are out it may well be a good idea to up it to a high risk, didn't think that would happen but I remember some people on another forum talking about this being more severe then progged.

[CrazyC83]

SEL5

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 365
NWS STORM PREDICTION CENTER NORMAN OK
550 PM CDT SUN MAY 25 2008

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

WESTERN AND SOUTHERN KANSAS
NORTHWEST OKLAHOMA
THE TEXAS PANHANDLE

EFFECTIVE THIS SUNDAY AFTERNOON AND MONDAY MORNING FROM 550 PM
UNTIL 100 AM CDT.

TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH OF AMARILLO
TEXAS TO 55 MILES NORTH OF DODGE CITY KANSAS. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU5).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 357. WATCH NUMBER 357 WILL NOT BE IN EFFECT AFTER
550 PM CDT. CONTINUE...WW 358...WW 359...WW 360...WW 361...WW
363...WW 362...WW 364...

DISCUSSION...CONTINUED THREAT FOR ISOLD TORNADOES AND LARGE
HAIL/DMGG WIND WITH TSTMS EXPECTED TO CO9NTINUE FORMING INVOF
SSW-NNE ORIENTED DRY LINE. LARGE SCALE ASCENT/LOW LEVEL UPLIFT MAY
BE ENHANCED LATER THIS EVENING BY CONTINUED NNE MOTION OF WEAK UPR
IMPULSE IN SE NM...AND BY DIURNAL STRENGTHENING/BACKING OF MOIST
LLJ.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24020.


...CORFIDI

[CrazyC83]

MESOSCALE DISCUSSION 1031
NWS STORM PREDICTION CENTER NORMAN OK
0601 PM CDT SUN MAY 25 2008

AREAS AFFECTED...MN...WRN WI

CONCERNING...TORNADO WATCH 359...360...

VALID 252301Z - 260000Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 359...360...CONTINUES.

THUNDERSTORMS CONTINUE TO DEVELOP ACROSS MN AND WI...WITH
SIGNIFICANT STORMS EXTENDING FROM A W-E ORIENTED LINE EXTENDING FROM
WRIGHT COUNTY MN THROUGH BARRON COUNTY WI. MORE SIGNIFICANT TORNADIC
THREAT EXISTS ALONG THIS LINE.

DISCRETE SUPERCELLULAR STORMS HAVE BEEN FORMING ALONG AN OLD W-E
ORIENTED OUTFLOW BOUNDARY. ENVIRONMENT IN THIS AREA REMAINS MORE
THAN SUFFICIENT FOR CONTINUED DEVELOPMENT...WITH STRONG CURVATURE IN
THE LOW LEVEL WIND FIELDS OBSERVED ON VAD WIND PROFILE DATA AND
SURFACE OBS NEAR THE OUTFLOW BOUNDARY. 0-6 EFFECTIVE BULK SHEAR IN
EXCESS OF 60 TO 80 KTS IN THESE AREAS IN ADDITION TO A MODERATELY
UNSTABLE AIRMASS WILL SUSTAIN ONGOING STORMS AND SUPPORT ADDITIONAL
DEVELOPMENT TO THE W OF THE TWO SIGNIFICANT SUPERCELLS NE OF THE
MINNEAPOLIS METRO AREA. TORNADOES...LARGE HAIL UP TO THE SIZE OF
BASEBALLS...AND DMGG WINDS WILL BE POSSIBLE IN ASSOCIATION WITH
THESE STORMS. ADDITIONAL DEVELOPMENT WILL BE POSSIBLE AS THESE
STORMS PRODUCE OUTFLOW.

FARTHER N...STORMS ARE HAVING SOME DEGREE OF DIFFICULTY IN BECOMING
SURFACE BASED...WITH THE EXCEPTION OF THE NEWLY DEVELOPED STORM
BETWEEN BJI AND GPZ. GENERAL IR IMAGERY TRENDS HAVE SHOWN WARMING
TOPS. HOWEVER...N-S ORIENTED LINE OF CONVERGENCE...REMAINING
INSTABILITY...AND SUFFICIENT SHEAR SHOULD CONTINUE TO SUPPORT A FEW
BRIEF INTENSE UPDRAFTS AND NEW STORM DEVELOPMENT WITH THE PRIMARY
THREAT OF HAIL.

..HURLBUT.. 05/25/2008


ATTN...WFO...DLH...ARX...MPX...FGF...

44599154 44589412 45899507 47539480 48459417 48079235
45469103

[Bunkertor]

There should be a tornado emergency for Dunkerton, IA.

And there should be an exceptional upgrade to high risk, i think

Maybe at 0100Z, but it is rare to upgrade at that time.

Right, i don´t think the will go for it. Darkness could justify in case activity stayed that violent but this is no meterological factor .

[wbug1]

Carbondale, IL is in tornado warning. Cell is about 30 km WNW but moving very slowly.

[RL3AO]

Outflow boundary.

[CrazyC83]

MESOSCALE DISCUSSION 1032
NWS STORM PREDICTION CENTER NORMAN OK
0606 PM CDT SUN MAY 25 2008

AREAS AFFECTED...PORTIONS NRN AR...SRN MO...EXTREME NERN
OK...EXTREME SERN KS.

CONCERNING...TORNADO WATCH 358...

VALID 252306Z - 260100Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 358 CONTINUES.

NEW WW MAY BE REQUIRED FARTHER E OVER ERN OZARKS REGION. MEANWHILE
CONTINUE WW 358 OVER MUCH OF NWRN AR AND SRN MO. PROBABILITY OF
ADDITIONAL DEVELOPMENT IN SERN KS/NERN OK PORTIONS WW IS DECREASING
WITH TIME...AND THOSE AREAS MAY BE CLEARED BEFORE SCHEDULED 01Z
EXPIRATION.

SEVERAL CLUSTERS OF TSTMS HAVE ORGANIZED LOOSELY INTO MCS WITH COLD
POOL OVER OZARKS...LEADING EDGE OF WHICH WAS EVIDENT AT 2245Z IN ARC
FROM SGF AREA EWD-SEWD OVER WRIGHT/OZARK COUNTIES MO...THEN SWD/SWWD
ACROSS NEWTON-CRAWFORD COUNTIES AR. TSTMS HAVE FORMED N OF THIS
ACTIVITY BETWEEN MILLER-DALLAS COUNTIES MO. ADDITIONAL TSTMS MAY
FORM ALONG RESULTING OUTFLOW BOUNDARY CURVING FARTHER WWD/NWWD
ACROSS NERN OK...HOWEVER CONVECTIVE TRENDS DURING PEAK MOIST SECTOR
WARMING PERIOD HAS BEEN FOR TOWERS TO DISSIPATE RAPIDLY UPON
INTERACTING WITH RELATIVELY FRESH/STABLE OUTFLOW AIR. TSTMS OVER
NRN AR AND SRN MO SHOULD PERSIST FOR SEVERAL MORE HOURS...MOVING E
OF THIS WW...WITH MAIN CONCERNS BEING DAMAGING GUSTS AND LARGE HAIL
S OF OUTFLOW BOUNDARY COVERED BY WW 364.

MRGL DEEP-LAYER SHEAR VALUES -- E.G. EFFECTIVE BULK SHEAR MAGNITUDES
APPROXIMATELY 30 KT OVER MOST OF REGION...INDICATE PRIMARY
CONVECTIVE MODE WILL REMAIN MULTICELLULAR. TRANSIENT SUPERCELL
STRUCTURES MAY DEVELOP...HOWEVER...PARTICULARLY IN ASSOCIATION WITH
STORM MERGERS AND BOUNDARY INTERACTIONS.

..EDWARDS.. 05/25/2008


ATTN...WFO...PAH...MEG...LSX...LZK...SGF...EAX...TSA...

34839338 35589498 37269484 38509340 37739060 36449098
35389158 35179287

[Bunkertor]

It should be called the
Conference finals outbreak ( Dave Stern outbreak )