Alert archive / Illinois / Areal Flood Warnings in 2011

Areal Flood Warning 62, NWS St. Louis, MO

June 26, 2011Brown County, Illinois

NWS St. Louis, MO issued this areal flood warning at Jun 26, 2011, 2:22 AM CDT for Brown County, Illinois. It was in force for 4 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: Jun 26, 2011, 2:22 AM CDT (07:22 UTC)
Expired: Jun 26, 2011, 6:49 AM CDT
In force: 4 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

County Brown County, IL

The radar

The Lincoln radar (KILX), 122 km from the middle of the area, began a volume at 07:22 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

Lincoln, IL (KILX), launched 00:00Z, 7.4 hours before the alert went out and 184 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1094 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 189 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

What forecasters said that day

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

NWS St. Louis, MO wrote its last area forecast discussion before this areal flood warning went out at Jun 26, 12:18 AM CDT, 2 hours 4 minutes earlier.

Area forecast discussion, Jun 26, 12:18 AM CDT, 2 hours 4 minutes before

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Hazardous weather outlook, Jun 25, 5:02 PM CDT, 9 hours 20 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
502 PM CDT SAT JUN 25 2011

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-261130-
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX MO-
LEWIS MO-SHELBY MO-MARION MO-MONROE MO-RALLS MO-PIKE MO-BOONE MO-
AUDRAIN MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO-MONTGOMERY MO-
LINCOLN MO-GASCONADE MO-WARREN MO-ST. CHARLES MO-FRANKLIN MO-
ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-
WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
502 PM CDT SAT JUN 25 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND
CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS.

.DAY ONE...TONIGHT

THUNDERSTORMS ARE EXPECTED ACROSS THE AREA TONIGHT. SOME OF THE STORMS
MAY BE SEVERE CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE CHANCE FOR THUNDERSTORMS WILL CONTINUE THROUGH MONDAY NIGHT. MULTIPLE
THUNDERSTORM COMPLEXES EXPECTED TO MOVE ACROSS THE AREA SUNDAY THROUGH
MONDAY MORNING...AND THEN WITH A COLD FRONT MONDAY AFTERNOON AND
NIGHT. STRONG TO SEVERE STORMS ARE POSSIBLE DURING THIS TIME.

THE CHANCE FOR THUNDERSTORMS RETURNS ON TUESDAY NIGHT AND
WEDNESDAY AS A WARM FRONT LIFTS NORTH THROUGH THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE TONIGHT.

GLASS

In the hours before

Local storm report, Jun 26, 1:17 AM CDT, 1 hour 5 minutes before

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Local storm report, Jun 26, 1:23 AM CDT, 59 minutes before

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Local storm report, Jun 26, 1:25 AM CDT, 57 minutes before

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Special weather statement, Jun 26, 1:30 AM CDT, 52 minutes before

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Local storm report, Jun 26, 1:40 AM CDT, 42 minutes before

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Local storm report, Jun 26, 1:44 AM CDT, 38 minutes before

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The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 25, 7:26 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Jefferson, Washington	49 min
Jun 25, 7:36 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles	39 min
Jun 25, 7:45 PM CDT	Tornado Warning	LSX	Franklin, Jefferson, Washington	45 min
Jun 25, 8:03 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Saint Francois, Washington	42 min
Jun 25, 8:09 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis	51 min
Jun 25, 8:12 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve	48 min
Jun 25, 8:13 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles	47 min
Jun 25, 8:33 PM CDT	Flash Flood Warning	LSX	Lewis	6 hr
Jun 25, 8:42 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois, Washington	48 min
Jun 25, 8:46 PM CDT	Severe Thunderstorm Warning	LSX	Saint Louis, City of Saint Louis	44 min
Jun 25, 8:52 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Washington	38 min
Jun 25, 9:27 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois	23 min
Jun 25, 10:01 PM CDT	Areal Flood Advisory	LSX	Franklin, Jefferson, Sainte Genevieve, Saint Francois, Washington	6 hr
Jun 25, 10:47 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois, Washington	43 min
Jun 25, 11:00 PM CDT	Tornado Warning	LSX	Sainte Genevieve, Saint Francois, Washington	45 min
Jun 25, 11:08 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Gasconade, Washington	22 min
Jun 25, 11:11 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis, City of Saint Louis	49 min
Jun 25, 11:35 PM CDT	Tornado Warning	LSX	Sainte Genevieve, Saint Francois	40 min
Jun 25, 11:42 PM CDT	Areal Flood Advisory	LSX	Saint Charles, Saint Louis, City of Saint Louis	6 hr
Jun 26, 12:06 AM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois	39 min
Jun 26, 12:21 AM CDT	Flash Flood Warning	LSX	Franklin, Jefferson, Lincoln, Saint Charles, Saint Louis, Warren and 1 more	6 hr
Jun 26, 12:42 AM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve	33 min
Jun 26, 12:43 AM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis	47 min
Jun 26, 1:43 AM CDT	River Flood Warning	LSX	Saint Charles	13 hr
Jun 26, 2:11 AM CDT	Flash Flood Warning	LSX	Sainte Genevieve	4 hr
Jun 26, 6:29 AM CDT	Areal Flood Warning	LSX	Lincoln, Saint Charles, Saint Louis, City of Saint Louis	12 hr
Jun 26, 2:25 PM CDT	River Flood Warning	LSX	Lincoln	7 days
Jun 26, 2:25 PM CDT	River Flood Warning	LSX	Lewis	4 days
Jun 26, 2:43 PM CDT	Flash Flood Watch	LSX	Audrain, Boone, Callaway, Cole, Crawford, Franklin and 20 more	31 hr
Jun 26, 3:11 PM CDT	River Flood Warning	LSX	Ralls	6 days
Jun 26, 4:12 PM CDT	Flash Flood Warning	LSX	Jefferson, Saint Francois	6 hr
Jun 26, 4:15 PM CDT	Severe Thunderstorm Warning	LSX	Reynolds	30 min
Jun 26, 4:16 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Francois, Washington	29 min
Jun 26, 4:40 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Francois, Washington	38 min
Jun 26, 4:54 PM CDT	Flash Flood Warning	LSX	Washington	6 hr
Jun 25, 7:13 PM CDT	Severe Thunderstorm Warning	LSX	Brown	20 min
Jun 25, 7:52 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey, Macoupin	38 min
Jun 25, 8:41 PM CDT	Severe Thunderstorm Warning	LSX	Madison	49 min
Jun 25, 8:53 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Montgomery	52 min
Jun 25, 8:58 PM CDT	Severe Thunderstorm Warning	LSX	Greene, Jersey	47 min
Jun 25, 9:36 PM CDT	Areal Flood Advisory	LSX	Bond, Fayette, Macoupin, Madison, Montgomery	6 hr
Jun 25, 9:42 PM CDT	Areal Flood Advisory	LSX	Clinton, Marion, Washington	6 hr
Jun 25, 10:01 PM CDT	River Flood Warning	LSX	Fayette	4 days
Jun 25, 10:11 PM CDT	River Flood Warning	LSX	Brown	7 days
Jun 25, 11:45 PM CDT	Areal Flood Advisory	LSX	Monroe, Randolph, Saint Clair	6 hr
Jun 26, 2:33 AM CDT	Severe Thunderstorm Warning	LSX	Randolph	42 min

Nearby

Areal Flood Warnings in Illinois, 2011 Every areal flood warning in 2011

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.