Alert archive / Indiana / Special Weather Statements in 2010

Special Weather Statement, NWS Indianapolis, IN

August 4, 2010Delaware County, Randolph County, Indiana

NWS Indianapolis, IN issued this special weather statement at Aug 4, 2010, 11:16 AM EDT for Delaware County, Randolph County, Indiana. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 4, 2010, 11:16 AM EDT (15:16 UTC)
Expired: Aug 4, 2010, 12:15 PM EDT
In force: 59 min
Issued by: NWS Indianapolis, IN

Counties Delaware County, IN, Randolph County, IN

The radar

The Indianapolis radar (KIND), 114 km from the middle of the area, began a volume at 15:18 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 3.3 hours before the alert went out and 144 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2520 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 858 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Indianapolis, IN wrote its last area forecast discussion before this special weather statement went out at Aug 4, 7:20 AM EDT, 3 hours 56 minutes earlier.

Area forecast discussion, Aug 4, 7:20 AM EDT, 3 hours 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
720 AM EDT WED AUG 4 2010

.UPDATE...
AVIATION SECTION HAS BEEN UPDATED BELOW

&&

.SYNOPSIS...
THE MAIN FOCUS OF THE SHORT TERM FORECAST IS THE EXCESSIVE HEAT
ACROSS CENTRAL INDIANA AS A HOT AND HUMID AIRMASS OVERTAKES THE
AREA. TEMPERATURES ARE EXPECTED TO TOP OFF IN THE TRIPLE DIGITS
THIS AFTERNOON WITH HEAT INDICES REACHING A DANGEROUS LEVEL OF 105
TO 112 DEGREES ACROSS THE SOUTHWEST PORTIONS OF THE FORECAST
AREA. IN ADDITION...THERE IS A THREAT FOR SEVERE WEATHER AS A COLD
FRONT PUSHES THROUGH A VERY UNSTABLE AIRMASS LATER TODAY AND
TONIGHT. THERE WILL BE A BREAK FROM THE HEAT STARTING TOMORROW IN
WAKE OF THE AFOREMENTIONED COLD FRONT. HIGHS WILL FALL INTO THE
MID TO UPPER 80S WITH LESS HUMID CONDITIONS. FURTHER
OUT...PLEASANT CONDITIONS WILL RETURN FOR THE WEEKEND AS HIGH
PRESSURE BUILDS ACROSS THE GREAT LAKES REGION.

&&

.NEAR TERM /REST OF TONIGHT/...
CURRENT RADAR MOSAIC IS SHOWING SOME SCATTERED SHOWERS AND WEAK
THUNDERSTORMS DRIFTING ACROSS THE NORTHERN PORTIONS OF CENTRAL
INDIANA. FOR THE REMAINDER OF THE AREA...CALM CONDITIONS ARE
PREVAILING. CURRENT OBSERVATIONS ARE REPORTING TEMPS IN THE
UPPER 70S AND LOW 80S WITH DEWPOINTS ABOUT THE SAME. WINDS ARE
CALM. IR SATELLITE IS DISPLAYING A BREAK IN THE CONVECTION ACROSS
NORTHWEST INDIANA AND ILLINOIS. BUT...ANOTHER MCS IS CURRENTLY MOVING
THROUGH NEBRASKA AND IOWA...AND WILL MOST LIKELY BE THE NEXT ROUND
OF STORMS FOR CENTRAL INDIANA LATER TODAY.

&&

.SHORT TERM /WEDNESDAY INTO THURSDAY/...
THE MAIN FOCUS IS THE EXCESSIVE HEAT.

A HEAT ADVISORY REMAINS IN EFFECT FOR ALL OF CENTRAL INDIANA.
DECIDED TO UPGRADE TO HEAT WARNING ACROSS THE SOUTHWEST PORTIONS
OF THE AREA. AT THIS TIME...MIN APPARENT TEMPS WILL MEET
CRITERIA...AND MAX APPARENT TEMPS WILL BE CLOSE. SO...FELT THIS
WARRANTED WARNING ACROSS THOSE COUNTIES...AND WARNING MAY HAVE
TO BE EXTENDED FURTHER NORTH.

GFS/EURO/NAM ALL SHOW FRONTAL BOUNDARY SITUATED OVER NORTHERN
PORTIONS OF WARNING AREA THROUGH THIS AFTERNOON. IT WILL FINALLY
PUSH THROUGH AS A COLD FRONT TONIGHT. LIFT IS NOT VERY
IMPRESSIVE...BUT THE FRONT WILL BE MOVING INTO A HIGHLY UNSTABLE
AIRMASS. SO...THERE IS A THREAT FOR SOME SEVERE WEATHER ONCE AGAIN
TONIGHT. SPC HAS NORTHERN TWO-THIRDS OF FORECAST AREA UNDER SLIGHT
RISK THROUGH TOMORROW MORNING. ONE CAVEAT IS THE -6 DEGREE TEMPS
AT 500MB...WHICH COULD INHIBIT POTENTIAL FOR SEVERE WEATHER.

THERE WAS A BIT OF DISCREPANCY BETWEEN THE NAM AND GFS/EURO
REGARDING TEMPS AND DEWPOINTS FOR TODAY. THE NAM HAD HIGHER
DEWPOINTS IN THE UPPER 70S WITH HIGHS JUST A BIT LOWER THAN THE
GFS/EURO. CONSIDERING THE WEATHER PATTERN THE LAST FEW
DAYS...LIKED THE HIGHER DEWPOINTS OF THE GFS/EURO. SO...LEANED
TOWARD THE MID 70S IN THE GRIDS FOR TODAY AND TONIGHT. CARRIED MID
TO UPPER 60S THROUGH THE END OF THE WEEK...THESE MAY HAVE TO BE
LOWERED...BUT HESITANT TO GO MUCH LOWER AT THIS TIME. AS FAR AS
TEMPS...LEANED TOWARD THE HIGHER NUMBERS OF THE GFS/EURO. UPPER
90S/LOW TRIPLE DIGITS DID NOT SEEM UNREASONABLE WITH 850 TEMPS IN
THE 20-22C RANGE.

FRIDAY...LESS HUMID AIR AND COOLER TEMPS /MID TO UPPER 80S/ WILL
PREVAIL BEHIND THE AFOREMENTIONED COLD FRONT. PLEASANT CONDITIONS
WILL BE THE NORM THROUGH THE WEEKEND.

&&

.LONG TERM /FRIDAY THROUGH TUESDAY/...
CANADIAN HIGH PRESSURE BUILDS INTO THE GREAT LAKES AND OHIO VALLEY
REGION AND PUSHES FRONTAL PRECIPITATION ALL THE WAY TO GULF STATES
SO VERY PLEASANT CONDITIONS LIKE LAST WEEKEND SHOULD OCCUR. GFS
HINTS AT SOME SCATTERED SHOWERS SATURDAY BUT IF THESE OCCUR THEY
SHOULD REMAIN TO OUR NORTH. MONDAY TUESDAY TIME FRAME MAY BECOME
UNSETTLED BUT FOR MOMENT HAVE KEPT THESE DRY UNTIL CONSISTENT
PATTERN ESTABLISHES.

&&

.AVIATION /DISCUSSION FOR 041200Z TAFS/..
INITIAL AREA OF THUNDERSTORMS OVER NORTHERN ILLINOIS IS TRACKING A
LITTLE FARTHER NORTH THAN EXPECTED AND IT SHOULD PASS NEAR OR JUST
OF KLAF NEAR OR SHORTLY AFTER 14Z.  WILL START VCTS AT KLAF AND
CONTINUE IT FOR THE REST OF THE DAY AS SCATTERED TO NUMEROUS
THUNDERSTORMS WILL MOVE ACROSS NORTHERN PARTS OF CENTRAL INDIANA.

AT KLAF AND KIND ONSET OF THUNDERSTORMS WILL BE SLOWER WITH BEST
CHANCES LATE TODAY AND EARLY TONIGHT. AT KBMG MAIN BEST CHANCES OF
THUNDERSTORMS WILL BE TONIGHT.  MODELS SHOW CAPES OF UP TO 3500
J/KG...BUT AIRMASS IS QUITE CAPPED OVER CENTRAL AND SOUTHERN
SECTIONS AT LEAST TODAY WHICH WILL DELAY ONSET OF THUNDERSTORMS.
SOME MVFR FOG EARLY THIS MORNING AND AGAIN OVERNIGHT.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
EXCESSIVE HEAT WARNING FROM NOON TO 800 PM FOR ZONES
INZ043-044-051>053-060>062-067>070-041730-

HEAT ADVISORY FROM NOON TO 800 PM FOR ZONES
INZ021-028>031-035>042-045>049-054>057-063>065-071-072-

SYNOPSIS...DT
NEAR TERM...DT
SHORT TERM...DT
LONG TERM....TUCEK
AVIATION...JH

Hazardous weather outlook, Aug 4, 5:36 AM EDT, 5 hours 40 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
ISSUED BY NATIONAL WEATHER SERVICE NORTHERN INDIANA
536 AM EDT WED AUG 4 2010

INZ043-044-051>053-060>062-067>070-050945-
VERMILLION-PARKE-VIGO-CLAY-OWEN-SULLIVAN-GREENE-MONROE-KNOX-
DAVIESS-MARTIN-LAWRENCE-
536 AM EDT WED AUG 4 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TODAY AND TONIGHT.

EXCESSIVE HEAT WILL RESULT IN A DANGEROUS SITUATION. HIGHS WILL
TOP OFF AROUND 100 DEGREES WITH HEAT INDICES BETWEEN 105-112
DEGREES.

THERE IS A CHANCE FOR SHOWERS AND THUNDERSTORMS. ANY STORMS THAT
DO BECOME SEVERE WILL BE CAPABLE OF DAMAGING WINDS...HEAVY
DOWNPOURS...AND FREQUENT LIGHTNING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

STRONG THUNDERSTORMS WILL BE POSSIBLE THURSDAY MORNING. SOME OF
THE MAIN THREATS WILL BE WIND GUSTS UP TO 40 MPH...BRIEF
DOWNPOURS...AND FREQUENT LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL
LOWERCASE)

INZ021-028>031-035>042-045>049-054>057-063>065-071-072-050945-
CARROLL-WARREN-TIPPECANOE-CLINTON-HOWARD-FOUNTAIN-MONTGOMERY-
BOONE-TIPTON-HAMILTON-MADISON-DELAWARE-RANDOLPH-PUTNAM-HENDRICKS-
MARION-HANCOCK-HENRY-MORGAN-JOHNSON-SHELBY-RUSH-BROWN-BARTHOLOMEW-
DECATUR-JACKSON-JENNINGS-
536 AM EDT WED AUG 4 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TODAY AND TONIGHT.

EXCESSIVE HEAT WILL RESULT IN A DANGEROUS SITUATION. HIGHS WILL
TOP OFF IN THE UPPER 90S WITH HEAT INDICES BETWEEN 100-105
DEGREES.

THERE IS A CHANCE FOR SHOWERS AND THUNDERSTORMS. ANY STORMS THAT
DO BECOME SEVERE WILL BE CAPABLE OF DAMAGING WINDS...HEAVY
DOWNPOURS...AND FREQUENT LIGHTNING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

STRONG THUNDERSTORMS WILL BE POSSIBLE THURSDAY MORNING. SOME OF
THE MAIN THREATS WILL BE WIND GUSTS UP TO 40 MPH...BRIEF
DOWNPOURS...AND FREQUENT LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL
LOWERCASE)

In the hours before

Local storm report, Aug 4, 7:44 AM EDT, 3 hours 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
744 AM EDT WED AUG 04 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 AM     TSTM WND GST     8 E FLORA               40.54N 86.37W
08/04/2010  E70 MPH          HOWARD             IN   TRAINED SPOTTER

            TREES AND POWER LINES DOWNED. SOME TREES FIVE FOOT
            DIAMETER.

&&

DTUCEK

Local storm report, Aug 4, 7:47 AM EDT, 3 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
747 AM EDT WED AUG 04 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 AM     TSTM WND GST     3 E FLORA               40.54N 86.47W
08/04/2010  E70.00 MPH       CARROLL            IN   TRAINED SPOTTER

            TREES AND POWER LINES DOWNED. SOME TREES FIVE FOOT
            DIAMETER.

&&

DTUCEK

Special weather statement, Aug 4, 11:16 AM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1116 AM EDT WED AUG 4 2010

INZ041-042-041615-
DELAWARE-RANDOLPH-
1116 AM EDT WED AUG 4 2010

...STRONG THUNDERSTORM ADVISORY FOR RANDOLPH AND NORTHEASTERN
DELAWARE COUNTIES UNTIL 1215 PM EDT...

AT 1113 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM MONTPELIER TO
HARTFORD CITY TO 7 MILES SOUTHEAST OF FAIRMOUNT...AND MOVING
SOUTHEAST AT 30 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THESE STORMS...ALONG WITH FREQUENT DANGEROUS LIGHTNING.

THESE STORMS WILL BE NEAR...
EATON AROUND 1130 AM EDT...
CONVERSE AROUND 1135 AM EDT...
ALBANY AROUND 1140 AM EDT...
SELMA AROUND 1150 AM EDT...
PARKER CITY AROUND 1155 AM EDT...
RIDGEVILLE AND FARMLAND AROUND NOON EDT...
SALEM...WINCHESTER AND SARATOGA AROUND 1210 PM EDT...
UNION CITY AROUND 1215 PM EDT...

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4002 8481 4001 8506 4032 8558 4040 8557
      4040 8522 4032 8520 4032 8481
TIME...MOT...LOC 1516Z 301DEG 26KT 4054 8528 4043 8541
          4032 8554

MRD/DRT

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 4, 12:31 AM EDT	Tornado Warning	IND	Howard	14 min
Aug 4, 1:06 AM EDT	Severe Thunderstorm Warning	IND	Carroll	24 min
Aug 4, 1:36 AM EDT	Severe Thunderstorm Warning	IND	Carroll, Howard, Tipton	24 min
Aug 4, 1:44 AM EDT	Areal Flood Warning	IND	Carroll	4 hr
Aug 4, 2:01 AM EDT	Severe Thunderstorm Warning	IND	Clinton, Howard, Tipton	29 min
Aug 4, 5:30 AM EDT	Excessive Heat Warning	IND	Bartholomew, Brown, Clay, Daviess, Decatur, Greene and 11 more	15 hr
Aug 4, 11:49 AM EDT	Severe Thunderstorm Warning	IND	Delaware, Randolph	41 min
Aug 4, 12:30 PM EDT	Special Weather Statement	IND	Randolph	15 min
Aug 4, 1:34 PM EDT	Special Weather Statement	IND	Rush	41 min
Aug 4, 4:41 PM EDT	Special Weather Statement	IND	Warren	49 min
Aug 4, 5:31 PM EDT	Special Weather Statement	IND	Tippecanoe, Warren	44 min
Aug 4, 6:20 PM EDT	Special Weather Statement	IND	Tippecanoe	40 min
Aug 4, 6:23 PM EDT	Special Weather Statement	IND	Warren	37 min
Aug 4, 6:30 PM EDT	Special Weather Statement	IND	Howard	45 min
Aug 4, 6:45 PM EDT	Special Weather Statement	IND	Clinton, Fountain, Tippecanoe	45 min
Aug 4, 6:50 PM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Fountain, Montgomery, Tippecanoe	40 min
Aug 4, 7:23 PM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Hamilton, Hendricks, Marion, Montgomery and 1 more	52 min
Aug 4, 7:27 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke, Putnam	48 min

Nearby

Special Weather Statements in Indiana, 2010 Every special weather statement in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.