Alert archive / Iowa / Flood Watches in 2014

Flood Watch 3, NWS Quad Cities, IA

April 13, 201421 counties in Iowa; 6 counties in Illinois

NWS Quad Cities, IA issued this flood watch at Apr 13, 2014, 1:27 PM CDT for 21 counties in Iowa; 6 counties in Illinois. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: Apr 13, 2014, 1:27 PM CDT (18:27 UTC)
Expired: Apr 14, 2014, 3:08 AM CDT
In force: 14 hr
Issued by: NWS Quad Cities, IA
Flood severity: None

All 27 counties

Benton County, IA, Buchanan County, IA, Cedar County, IA, Clinton County, IA, Delaware County, IA, Des Moines County, IA, Dubuque County, IA, Henry County, IA, Iowa County, IA, Jackson County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Lee County, IA, Linn County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Van Buren County, IA, Washington County, IA, Carroll County, IL, Jo Daviess County, IL, Mercer County, IL, Rock Island County, IL, Stephenson County, IL, Whiteside County, IL

The radar

The Quad Cities radar (KDVN), 47 km from the middle of the area, began a volume at 18:28 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 12:00Z, 6.5 hours before the alert went out and 273 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: 185 J/kg
Mixed-layer CIN: -285 J/kg
Mixed-layer LCL: 1094 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 227 m²/s²
0-3 km storm-relative helicity: 199 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 flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Quad Cities, IA wrote its last area forecast discussion before this flood watch went out at Apr 13, 6:55 AM CDT, 6 hours 32 minutes earlier.

Area forecast discussion, Apr 13, 6:55 AM CDT, 6 hours 32 minutes before

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Hazardous weather outlook, Apr 13, 3:50 AM CDT, 9 hours 37 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
350 AM CDT SUN APR 13 2014

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-140900-
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON-
CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON-
HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
350 AM CDT SUN APR 13 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHWEST ILLINOIS...WEST CENTRAL ILLINOIS...EAST
CENTRAL IOWA...NORTHEAST IOWA...SOUTHEAST IOWA AND NORTHEAST
MISSOURI.

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS WITH HEAVY RAINFALL ARE EXPECTED TODAY
THROUGH THIS EVENING. SMALL HAIL WILL ALSO BE POSSIBLE WITH THE
STRONGEST STORMS THIS MORNING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

MUCH COLDER AIR MOVING INTO THE MIDWEST WILL LIKELY RESULT IN
RAIN MIXING WITH OR POSSIBLY CHANGING TO SNOW OVER PORTIONS OF
THE OUTLOOK AREA MONDAY MORNING. NO ACCUMULATION IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.  HOWEVER...
REPORTS OF RAINFALL AMOUNTS IN EXCESS OF 1 INCH WOULD BE APPRECIATED.

In the hours before

Local storm report, Apr 13, 11:49 AM CDT, 1 hour 38 minutes before

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Local storm report, Apr 13, 12:06 PM CDT, 1 hour 21 minutes before

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Local storm report, Apr 13, 12:07 PM CDT, 1 hour 20 minutes before

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Local storm report, Apr 13, 12:17 PM CDT, 1 hour 10 minutes before

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Local storm report, Apr 13, 12:54 PM CDT, 33 minutes before

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Special weather statement, Apr 13, 1:15 PM CDT, 12 minutes before

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The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 12, 10:15 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Buchanan	60 min
Apr 12, 11:35 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa, Johnson, Keokuk, Linn, Washington	55 min
Apr 12, 11:50 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Keokuk, Van Buren, Washington	55 min
Apr 13, 12:27 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Johnson, Jones, Linn, Louisa, Muscatine and 1 more	63 min
Apr 13, 1:17 AM CDT	Special Weather Statement	DVN	Clinton, Jackson, Scott	58 min
Apr 13, 1:30 AM CDT	Severe Thunderstorm Warning	DVN	Clinton, Scott	45 min
Apr 13, 6:03 PM CDT	Tornado Warning Tornado observed	DVN	Cedar, Johnson, Muscatine	27 min

Nearby

Flood Watches in Iowa, 2014 Flood Watches in Illinois, 2014 Every flood watch in 2014

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.