Alert archive / Indiana / Freeze Warnings in 2009

Freeze Warning 1, NWS Indianapolis, IN

April 5, 200939 counties in Indiana

NWS Indianapolis, IN issued this freeze warning at Apr 5, 2009, 10:30 PM EDT for 39 counties in Indiana. It took effect at Apr 6, 2009, 11:00 PM EDT. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 5, 2009, 10:30 PM EDT (02:30 UTC)
In effect from
Apr 6, 2009, 11:00 PM EDT
Expired
Apr 7, 2009, 9:09 AM EDT
In force
10 hr
Issued by
NWS Indianapolis, IN
All 39 counties

Bartholomew County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Decatur County, IN, Delaware County, IN, Fountain County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Jackson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN

The radar

The Indianapolis radar (KIND), 15 km from the middle of the area, began a volume at 02:32 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 00:00Z, 2.5 hours before the alert went out and 227 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2009-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2009-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 264 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2014 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
264 m²/s²
0-3 km storm-relative helicity
547 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this freeze warning 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 freeze warning went out at Apr 5, 7:18 PM EDT, 3 hours 12 minutes earlier.

Area forecast discussion, Apr 5, 7:18 PM EDT, 3 hours 12 minutes before
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Hazardous weather outlook, Apr 5, 9:59 PM EDT, 31 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
959 PM EDT SUN APR 5 2009

INZ021-028>030-035>037-043-044-061000-
CARROLL-WARREN-TIPPECANOE-CLINTON-FOUNTAIN-MONTGOMERY-BOONE-
VERMILLION-PARKE-
959 PM EDT SUN APR 5 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TONIGHT.

MINOR FLOODING MAINLY ALONG SMALL STREAMS AND LOW LYING AREAS IS POSSIBLE
THROUGH THE LATE EVENING

MUCH COLDER AIR WILL ARRIVE LATE TONIGHT AND ALLOW SOME SNOW TO
MIX IN WITH RAIN SHOWERS TOWARDS MONDAY MORNING. NO ACCUMULATION
IS EXPECTED TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

A VERY COLD AIRMASS OVER CENTRAL INDIANA WILL ALLOW FOR SNOW
SHOWERS TO FALL ON MONDAY AND MONDAY NIGHT. LIGHT ACCUMULATIONS OF
SNOW ON GRASSY SURFACES ARE POSSIBLE IN NORTH CENTRAL INDIANA.
ACCUMULATIONS SHOULD REMAIN LESS THAN HALF AN INCH.

A HARD FREEZE IS LIKELY MONDAY AND TUESDAY NIGHTS WITH
TEMPERATURES FALLING INTO THE MID 20S. THESE TEMPERATURES WILL KILL
ANY TENDER VEGETATION OUTSIDE.

.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)

INZ045>047-051>055-060>063-067>071-061000-
PUTNAM-HENDRICKS-MARION-VIGO-CLAY-OWEN-MORGAN-JOHNSON-SULLIVAN-
GREENE-MONROE-BROWN-KNOX-DAVIESS-MARTIN-LAWRENCE-JACKSON-
959 PM EDT SUN APR 5 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TONIGHT.

MINOR FLOODING MAINLY ALONG SMALL STREAMS AND LOW LYING AREAS IS POSSIBLE
THROUGH THE LATE EVENING

MUCH COLDER AIR WILL ARRIVE LATE TONIGHT AND ALLOW SOME SNOW TO
MIX IN WITH RAIN SHOWERS TOWARDS MONDAY MORNING. NO ACCUMULATION
IS EXPECTED TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

A VERY COLD AIRMASS OVER CENTRAL INDIANA WILL ALLOW FOR SNOW
SHOWERS TO FALL ON MONDAY AND MONDAY NIGHT. A SLUSHY DUSTING MAY
BE POSSIBLE ON GRASSY SURFACES.

A HARD FREEZE IS LIKELY MONDAY AND TUESDAY NIGHTS WITH
TEMPERATURES FALLING INTO THE MID 20S. THESE TEMPERATURES WILL KILL
ANY TENDER VEGETATION OUTSIDE.

THERE WILL BE A CHANCE OF THUNDERSTORMS IN SOUTH CENTRAL INDIANA
THURSDAY NIGHT AND FRIDAY. CLOUD TO GROUND LIGHTNING WILL BE THE
PRIMARY HAZARD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY AFTER 1 PM THIS AFTERNOON.

&&

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

INZ048-056-057-064-065-072-061000-
HANCOCK-SHELBY-RUSH-BARTHOLOMEW-DECATUR-JENNINGS-
959 PM EDT SUN APR 5 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TONIGHT.

THE THUNDERSTORMS WILL BE ENDING BY MIDNIGHT EDT. THE STORMS WILL
BE CAPABLE OF DEADLY CLOUD TO GROUND LIGHTNING...HEAVY
RAIN...SMALL HAIL AND WIND GUSTS TO 45 MPH.

MUCH COLDER AIR WILL ARRIVE LATE TONIGHT AND ALLOW SOME SNOW TO
MIX IN WITH RAIN SHOWERS TOWARDS MONDAY MORNING. NO ACCUMULATION
IS EXPECTED TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

A VERY COLD AIRMASS OVER CENTRAL INDIANA WILL ALLOW FOR SNOW
SHOWERS TO FALL ON MONDAY AND MONDAY NIGHT. A SLUSHY DUSTING MAY
BE POSSIBLE ON GRASSY SURFACES.

A HARD FREEZE IS LIKELY MONDAY AND TUESDAY NIGHTS WITH
TEMPERATURES FALLING INTO THE MID 20S. THESE TEMPERATURES WILL KILL
ANY TENDER VEGETATION OUTSIDE.

THERE WILL BE A CHANCE OF THUNDERSTORMS IN SOUTH CENTRAL INDIANA
THURSDAY NIGHT AND FRIDAY. CLOUD TO GROUND LIGHTNING WILL BE THE
PRIMARY HAZARD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY AFTER 1 PM THIS AFTERNOON.

&&

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

INZ031-038>042-049-061000-
HOWARD-TIPTON-HAMILTON-MADISON-DELAWARE-RANDOLPH-HENRY-
959 PM EDT SUN APR 5 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TONIGHT.

THE THUNDERSTORMS WILL BE ENDING BY MIDNIGHT EDT. THE STORMS WILL
BE CAPABLE OF DEADLY CLOUD TO GROUND LIGHTNING...HEAVY
RAIN...SMALL HAIL AND WIND GUSTS TO 45 MPH. FLOODING IS ALSO
POSSIBLE MAINLY ALONG SMALL STREAMS AND LOW LYING AREAS.

MUCH COLDER AIR WILL ARRIVE LATE TONIGHT AND ALLOW SOME SNOW TO
MIX IN WITH RAIN SHOWERS TOWARDS MONDAY MORNING. NO ACCUMULATION
IS EXPECTED TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

A VERY COLD AIRMASS OVER CENTRAL INDIANA WILL ALLOW FOR SNOW
SHOWERS TO FALL ON MONDAY AND MONDAY NIGHT. LIGHT ACCUMULATIONS OF
SNOW ON GRASSY SURFACES ARE POSSIBLE IN NORTH CENTRAL INDIANA.
ACCUMULATIONS SHOULD REMAIN LESS THAN HALF AN INCH.

A HARD FREEZE IS LIKELY MONDAY AND TUESDAY NIGHTS WITH
TEMPERATURES FALLING INTO THE MID 20S. THESE TEMPERATURES WILL KILL
ANY TENDER VEGETATION OUTSIDE.

.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)

KOCH

In the hours before

Special weather statement, Apr 5, 8:32 PM EDT, 1 hour 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
832 PM EDT SUN APR 5 2009

INZ037-039-045>047-053>055-062-063-060100-
BOONE-BROWN-HAMILTON-HENDRICKS-JOHNSON-MARION-MONROE-MORGAN-OWEN-
PUTNAM-
832 PM EDT SUN APR 5 2009

...STRONG THUNDERSTORM ADVISORY FOR EASTERN OWEN...EASTERN PUTNAM...
HENDRICKS...JOHNSON...MARION...MORGAN...NORTHERN BROWN...NORTHERN
MONROE...SOUTHERN BOONE AND SOUTHERN HAMILTON COUNTIES UNTIL 900 PM
EDT...

AT 830 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 16 MILES SOUTH OF FRANKFORT TO 26 MILES SOUTHWEST OF
INDIANAPOLIS TO 13 MILES NORTHWEST OF BLOOMINGTON...AND MOVING EAST
AT 25 MPH.

SMALL HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THESE STORMS.

* THESE STORMS WILL BE NEAR...
  ELLETTSVILLE AROUND 840 PM EDT...
  LEBANON AROUND 845 PM EDT...
  MARTINSVILLE AROUND 855 PM EDT...
  WHITESTOWN AROUND 900 PM EDT...

THESE STORMS MAY PRODUCE PONDING OF WATER ON ROADWAYS. LISTEN FOR
LATER STATEMENTS OR POSSIBLE FLOODING WARNINGS...SHOULD THE RISK FOR
MINOR LOW LAND FLOODING BECOME MORE IMMINENT.

50
Special weather statement, Apr 5, 8:56 PM EDT, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
856 PM EDT SUN APR 5 2009

INZ037-039-046>048-054>056-062>064-060130-
BARTHOLOMEW-BOONE-BROWN-HAMILTON-HANCOCK-HENDRICKS-JOHNSON-MARION-
MONROE-MORGAN-SHELBY-
856 PM EDT SUN APR 5 2009

...STRONG THUNDERSTORM ADVISORY FOR BROWN...EASTERN BOONE...EASTERN
HENDRICKS...EASTERN MORGAN...HAMILTON...JOHNSON...MARION...
NORTHEASTERN MONROE...WESTERN BARTHOLOMEW...WESTERN HANCOCK AND
WESTERN SHELBY COUNTIES UNTIL 930 PM EDT...

AT 854 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 18 MILES SOUTHEAST OF FRANKFORT TO 9 MILES SOUTHWEST
OF INDIANAPOLIS TO BLOOMINGTON...AND MOVING EAST AT 30 MPH.

SMALL HAIL...AND WINDS AROUND 40 MPH ARE EXPECTED WITH THESE STORMS.

* THESE STORMS WILL BE NEAR...
  WOODVILLE HILLS AROUND 900 PM EDT...
  YELLOWWOOD LAKE AROUND 905 PM EDT...
  MONUMENT CIRCLE AROUND 910 PM EDT...
  WESTFIELD AROUND 915 PM EDT...

50
Special weather statement, Apr 5, 9:29 PM EDT, 1 hour 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
929 PM EDT SUN APR 5 2009

INZ039-040-047>049-056-057-064-065-060200-
BARTHOLOMEW-DECATUR-HAMILTON-HANCOCK-HENRY-MADISON-MARION-RUSH-
SHELBY-
929 PM EDT SUN APR 5 2009

...STRONG THUNDERSTORM ADVISORY FOR BARTHOLOMEW...DECATUR...
HAMILTON...HANCOCK...NORTHEASTERN MARION...RUSH...SHELBY...SOUTHERN
MADISON AND WESTERN HENRY COUNTIES UNTIL 1000 PM EDT...

AT 927 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 19 MILES WEST OF ANDERSON TO SHELBYVILLE TO
COLUMBUS...AND MOVING EAST AT 30 MPH.

SMALL HAIL...AND WINDS AROUND 40 MPH ARE EXPECTED WITH THESE STORMS.

* THESE STORMS WILL BE NEAR...
  FLAT ROCK AROUND 935 PM EDT...
  HOPE AROUND 940 PM EDT...
  WALDRON AROUND 945 PM EDT...
  MANILLA AROUND 950 PM EDT...

50
Special weather statement, Apr 5, 10:01 PM EDT, 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1001 PM EDT SUN APR 5 2009

INZ049-057-065-060230-
DECATUR-HENRY-RUSH-
1001 PM EDT SUN APR 5 2009

...STRONG THUNDERSTORM ADVISORY FOR NORTHEASTERN DECATUR...RUSH AND
SOUTHERN HENRY COUNTIES UNTIL 1030 PM EDT...

AT 959 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SHIRLEY TO RUSHVILLE TO GREENSBURG...MOVING EAST AT
35 MPH.

SMALL HAIL...AND WINDS AROUND 40 MPH ARE EXPECTED WITH THESE STORMS.

* THESE STORMS WILL BE NEAR...
  KENNARD AROUND 1005 PM EDT...
  GREENSBORO AROUND 1010 PM EDT...
  LEWISVILLE AROUND 1015 PM EDT...
  NEW CASTLE AROUND 1020 PM EDT...

THESE STORMS MAY PRODUCE PONDING OF WATER ON ROADWAYS. LISTEN FOR
LATER STATEMENTS OR POSSIBLE FLOODING WARNINGS...SHOULD THE RISK FOR
MINOR LOW LAND FLOODING BECOME MORE IMMINENT.

50

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 8:23 PM EDTAreal Flood AdvisoryINDBartholomew, Boone, Brown, Carroll, Clay, Clinton and 26 more67 days
Apr 6, 3:49 AM EDTFreeze WatchINDBartholomew, Boone, Brown, Carroll, Clay, Clinton and 33 more35 hr
Apr 6, 4:14 AM EDTAreal Flood AdvisoryINDBoone, Carroll, Clay, Clinton, Delaware, Fountain and 22 more71 days
Apr 6, 6:21 AM EDTRiver Flood WarningINDClay, Greene25 hr
Apr 6, 6:29 AM EDTRiver Flood WarningINDHamilton, Marion44 hr
Apr 6, 6:29 AM EDTRiver Flood WarningINDMarion, Morgan54 hr
Apr 6, 6:29 AM EDTRiver Flood WarningINDMarion, Morgan54 hr
Apr 6, 6:29 AM EDTRiver Flood WarningINDMorgan, Owen3 days
Apr 6, 6:29 AM EDTRiver Flood WarningINDMorgan, Owen3 days
Apr 6, 6:29 AM EDTRiver Flood WarningINDGreene, Owen5 days
Apr 6, 6:29 AM EDTRiver Flood WarningINDDaviess, Greene, Knox13 days
Apr 6, 6:29 AM EDTRiver Flood WarningINDDaviess, Greene, Knox13 days
Apr 6, 6:29 AM EDTRiver Flood WarningINDDaviess, Gibson, Knox, Pike15 days
Apr 6, 6:29 AM EDTRiver Flood WarningINDDaviess, Gibson, Knox, Pike16 days
Apr 6, 6:29 AM EDTRiver Flood WarningINDGibson, Knox17 days
Apr 6, 6:29 AM EDTRiver Flood WarningINDGibson, Knox, Posey19 days
Apr 6, 6:58 AM EDTRiver Flood WarningINDDelaware, Madison24 hr
Apr 6, 6:58 AM EDTRiver Flood WarningINDHamilton, Madison16 hr
Apr 6, 7:27 AM EDTRiver Flood WarningINDShelby15 hr
Apr 6, 7:27 AM EDTRiver Flood WarningINDJackson, Lawrence, Washington4 days

Nearby

Freeze Warnings in Indiana, 2009Every freeze warning in 2009

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.