Severe Weather Aug 4

[Dave]

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
917 AM EDT TUE AUG 4 2009

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
RIPLEY COUNTY IN SOUTHEAST INDIANA...

* UNTIL 1215 PM EDT.

* AT 912 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THUNDERSTORMS HAD PRODUCED HEAVY RAINFALL ACROSS THE WARNED
AREA. RADAR ESTIMATED THAT 2 TO 3 INCHES OF RAIN HAS FALLEN ACROSS
PARTS OF RIPLEY COUNTY SINCE 8 AM EDT.

* HEAVY RAIN CONTINUES TO FALL ACROSS THE WARNED AREA WITH ANOTHER
1 TO 3 INCHES OF RAIN WILL BE POSSIBLE THROUGH 1215 PM EDT. RUNOFF
FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR.

SOME LOCATIONS THAT MAY EXPERIENCE FLOODING
INCLUDE...BATESVILLE...MILAN...NAPOLEON...OSGOOD AND VERSAILLES.

[Dave]

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 655
NWS STORM PREDICTION CENTER NORMAN OK
740 AM CDT TUE AUG 4 2009

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

CENTRAL ILLINOIS

EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 740 AM UNTIL
100 PM CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES WEST
NORTHWEST OF SPRINGFIELD ILLINOIS TO 30 MILES SOUTH OF DANVILLE
ILLINOIS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

OTHER WATCH INFORMATION...CONTINUE...WW 654...

DISCUSSION...STORMS WILL LIKELY CONTINUE DEVELOPING EWD ALONG
CONVECTIVE OUTFLOW BOUNDARY WHERE THE 12Z LINCOLN IL RAOB INDICATES
5000 J/KG MLCAPE...STEEP LAPSE RATES AND ONLY MODEST CONVECTIVE
INHIBITION. UNIDIRECTIONAL WLY BULK SHEAR OF 30-35 KT WILL SUPPORT
POTENTIAL FOR EMBEDDED ORGANIZED STORM STRUCTURES WITH DAMAGING WIND
AND LARGE HAIL THE MAIN THREATS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 25035.


...DIAL

[Dave]

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
931 AM EDT TUE AUG 4 2009

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN FAYETTE COUNTY IN EAST CENTRAL INDIANA...
SOUTHERN UNION COUNTY IN EAST CENTRAL INDIANA...
NORTHEASTERN FRANKLIN COUNTY IN SOUTHEAST INDIANA...
WESTERN BUTLER COUNTY IN SOUTHWEST OHIO...

* UNTIL 1015 AM EDT.

* AT 931 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL AND WINDS
TO 60 MPH. THIS STORM WAS LOCATED NEAR MOUNDS STATE RECREATION
AREA...MOVING SOUTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
BROOKVILLE...
OXFORD...

IN ADDITION...BILLINGSVILLE...MOUNDS STATE RECREATION AREA...
CHARLOTTESVILLE...MIXERVILLE...MOUNT CARMEL...SCIPIO...REILY AND ST.
CHARLES ARE NEAR THE PATH OF THIS SEVERE THUNDERSTORM.

[Dave]

MESOSCALE DISCUSSION 1770
NWS STORM PREDICTION CENTER NORMAN OK
0824 AM CDT TUE AUG 04 2009

AREAS AFFECTED...MUCH OF CNTRL/SRN IN

CONCERNING...SEVERE POTENTIAL...WATCH NEEDED SOON

VALID 041324Z - 041400Z

CURRENT TRENDS SUGGEST THAT THE RISK FOR SEVERE STORMS IS INCREASING
ENOUGH TO WARRANT THE ISSUANCE OF A SEVERE THUNDERSTORM WATCH.

A STRONG CONVECTIVELY GENERATED SURFACE COLD POOL APPEARS TO HAVE
FORMED WITH THE EVOLVING MESOSCALE CONVECTIVE SYSTEM NOW ADVANCING
EASTWARD ACROSS CENTRAL ILLINOIS. GIVEN CURRENT SYSTEM MOTION ON
THE ORDER OF 40 KTS...ACTIVITY LIKELY WILL ADVANCE EAST OF THE
ILLINOIS/INDIANA BORDER BY 15-16Z...ACCOMPANIED BY THE RISK FOR
POTENTIALLY DAMAGING WINDS ALONG THE ASSOCIATED GUST FRONT.
VIGOROUS CONVECTIVE DEVELOPMENT IS ALREADY UNDERWAY IN ROUGH
EAST-WEST BAND ALONG A LOW-LEVEL BAROCLINIC ZONE ACROSS CENTRAL
INDIANA NEAR THE INTERSTATE 70 CORRIDOR. LARGE HAIL IS ALREADY A
POSSIBILITY WITH THIS ACTIVITY ...IN ADDITION TO FREQUENT CLOUD TO
GROUND LIGHTNING AND THE INCREASING POTENTIAL FOR VERY HEAVY RAIN
TOTALS ASSOCIATED WITH PERSISTENT/TRAINING CONVECTION.

..KERR.. 08/04/2009


ATTN...WFO...ILN...LMK...IWX...IND...LOT...ILX...

[Dave]

This watch does include my county & region so I'll be in and out today.



URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 656
NWS STORM PREDICTION CENTER NORMAN OK
945 AM EDT TUE AUG 4 2009

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

CENTRAL AND SOUTHERN INDIANA
FAR NORTHERN KENTUCKY

EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 945 AM UNTIL
400 PM EDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTHWEST
OF TERRE HAUTE INDIANA TO 80 MILES SOUTH SOUTHEAST OF MUNCIE
INDIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

OTHER WATCH INFORMATION...CONTINUE...WW 654...WW 655...

DISCUSSION...BOWING MCS...POSSIBLE DERECHO...EVOLVING OVER IL EARLY
THIS MORNING WILL LIKELY TRACK ESEWD ACROSS IND LATER THIS
MORNING/AFTERNOON AS A VERY UNSTABLE AIR MASS DEVELOPS ACROSS THE OH
RIVER VALLEY. ADDITIONAL DEVELOPMENT WILL CONTINUE AHEAD OF THIS
LINE OF STORMS ACROSS CENTRAL IND WITH THREATS OF ISOLATED DAMAGING
WINDS AND LARGE HAIL. THIS ACTIVITY WILL LIKELY ADD TO FLOODING
CONCERNS ACROSS ERN PORTIONS OF WW WHERE HEAVY RAIN HAS ALREADY
FALLEN THIS MORNING...AND WHERE TRAINING OCCURS ACROSS CENTRAL INTO
SWRN IND.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 29035.


...EVANS

[Dave]

Back later..flooding in county..US 421 closed north of Napoleon Indiana due to high water, looks like most roads will be flooding soon. Fire depts & ema being toned out now. Back later.

[CrazyC83]

Derecho developing? Moderate risk at 1630Z perhaps? I think 70 mph on the last watch was too conservative; I'd have put 80 or 90 mph, although probably not PDS as it was too conditional of a threat.

[somethingfunny]

Over six inches of rain fell over Louisville Kentucky earlier.

[breeze]

Over six inches of rain fell over Louisville Kentucky earlier.

And that was all in about 90 minutes!

[brunota2003]

Parents bought a trailer in Kentucky just a couple weeks ago. The creek in the front yard washed part of the bridge out and most of the embankment going across the creek...and said they almost lost my dad's truck (it was on the other side of the creek). They are at a hotel now.

[vbhoutex]

Parents bought a trailer in Kentucky just a couple weeks ago. The creek in the front yard washed part of the bridge out and most of the embankment going across the creek...and said they almost lost my dad's truck (it was on the other side of the creek). They are at a hotel now.

Yikes!!! Glad to know they are ok!!

[brunota2003]

Parents bought a trailer in Kentucky just a couple weeks ago. The creek in the front yard washed part of the bridge out and most of the embankment going across the creek...and said they almost lost my dad's truck (it was on the other side of the creek). They are at a hotel now.

Yikes!!! Glad to know they are ok!!

Pictures from them of the flooding at the trailer are up here in the Weather Attic:
viewtopic.php?f=20&t=106126