Alert archive / Iowa / River Flood Warnings in 2018

River Flood Warning 54, NWS Quad Cities, IA

June 21, 2018Louisa County, Iowa; Mercer County, Illinois

NWS Quad Cities, IA issued this river flood warning at Jun 21, 2018, 11:16 AM CDT for Louisa County, Iowa; Mercer County, Illinois. It took effect at Jun 25, 2018, 1:00 AM CDT. It was in force for 14 days.

The area

The counties it named.

The facts

Issued: Jun 21, 2018, 11:16 AM CDT (16:16 UTC)
In effect from: Jun 25, 2018, 1:00 AM CDT
Expired: Jul 9, 2018, 10:10 AM CDT
In force: 14 days
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Flood severity: Moderate

Counties Louisa County, IA, Mercer County, IL

The radar

The Quad Cities radar (KDVN), 57 km from the middle of the area, began a volume at 16:16 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 river

Written for the forecast point Mississippi River at New Boston (NBOI2).

Action stage: 14 ft
Minor stage: 15 ft
Moderate stage: 16.5 ft
Major stage: 18.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning 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 river flood warning went out at Jun 21, 5:48 AM CDT, 5 hours 28 minutes earlier.

Area forecast discussion, Jun 21, 5:48 AM CDT, 5 hours 28 minutes before

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Hazardous weather outlook, Jun 21, 4:21 AM CDT, 6 hours 55 minutes before

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In the hours before

Local storm report, Jun 21, 9:59 AM CDT, 1 hour 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
959 AM CDT THU JUN 21 2018

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

0700 AM     HEAVY RAIN       BURLINGTON REGIONAL AIR 40.78N 91.13W
06/21/2018  M2.52 INCH       DES MOINES         IA   ASOS

            24 HOUR TOTAL. OVER 2 INCHES FELL BETWEEN 4
            AND 5 PM JUNE 20. UPDATES PREVIOUS HEAVY
            RAIN REPORT FROM BURLINGTON REGIONAL
            AIRPORT.

&&

PS

Local storm report, Jun 21, 10:06 AM CDT, 1 hour 10 minutes before

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Local storm report, Jun 21, 10:07 AM CDT, 1 hour 9 minutes before

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Local storm report, Jun 21, 10:14 AM CDT, 1 hour 2 minutes before

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Local storm report, Jun 21, 11:15 AM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1115 AM CDT THU JUN 21 2018

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

1115 AM     HEAVY RAIN       1 NW WILLIAMSTOWN       41.58N 91.75W
06/21/2018  E1.20 INCH       JOHNSON            IA   TRAINED SPOTTER

&&

Special weather statement, Jun 21, 11:16 AM CDT, 0 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
Jun 20, 9:42 PM CDT	River Flood Watch	DVN	Dubuque, Jackson	24 hr
Jun 20, 9:42 PM CDT	River Flood Watch	DVN	Muscatine, Scott	24 hr
Jun 20, 9:42 PM CDT	River Flood Watch	DVN	Louisa, Muscatine	24 hr
Jun 20, 9:42 PM CDT	River Flood Watch	DVN	Louisa	24 hr
Jun 20, 9:42 PM CDT	River Flood Watch	DVN	Des Moines, Louisa	24 hr
Jun 20, 9:42 PM CDT	River Flood Watch	DVN	Des Moines	24 hr
Jun 20, 9:42 PM CDT	River Flood Watch	DVN	Des Moines, Lee	24 hr
Jun 21, 3:47 AM CDT	Flash Flood Watch	DVN	Cedar, Clinton, Delaware, Dubuque, Jackson, Johnson and 6 more	23 hr
Jun 21, 11:16 AM CDT	River Flood Warning	DVN	Dubuque, Jackson	11 days
Jun 21, 11:16 AM CDT	River Flood Warning	DVN	Muscatine, Scott	15 days
Jun 21, 11:16 AM CDT	River Flood Warning	DVN	Muscatine	15 days
Jun 21, 11:16 AM CDT	River Flood Warning	DVN	Louisa, Muscatine	16 days
Jun 21, 11:16 AM CDT	River Flood Warning	DVN	Des Moines, Louisa	19 days
Jun 21, 11:16 AM CDT	River Flood Warning	DVN	Des Moines	21 days
Jun 21, 11:16 AM CDT	River Flood Warning	DVN	Des Moines, Lee	21 days
Jun 21, 11:16 AM CDT	Special Weather Statement	DVN	Cedar, Johnson, Louisa, Muscatine	3 hr
Jun 21, 11:32 AM CDT	River Flood Watch	DVN	Clinton, Scott	24 hr
Jun 21, 11:40 AM CDT	Special Weather Statement	DVN	Benton, Cedar, Des Moines, Johnson, Linn, Louisa and 1 more	20 min
Jun 21, 12:02 PM CDT	Special Weather Statement	DVN	Johnson	118 min
Jun 21, 12:11 PM CDT	Special Weather Statement	DVN	Benton, Cedar, Des Moines, Henry, Iowa, Johnson and 7 more	49 min
Jun 21, 1:22 PM CDT	Special Weather Statement	DVN	Benton, Cedar, Iowa, Johnson, Linn, Louisa and 2 more	53 min
Jun 21, 2:05 PM CDT	River Flood Watch	DVN	Muscatine	24 hr
Jun 21, 2:49 PM CDT	Special Weather Statement	DVN	Muscatine	56 min
Jun 21, 2:54 PM CDT	Special Weather Statement	DVN	Muscatine	66 min
Jun 21, 3:01 PM CDT	Special Weather Statement	DVN	Johnson	119 min
Jun 20, 8:21 PM CDT	River Flood Warning	DVN	Henry, Rock Island	13 days
Jun 20, 8:57 PM CDT	River Flood Watch	DVN	Whiteside	24 hr
Jun 20, 8:57 PM CDT	River Flood Watch	DVN	Stephenson	24 hr
Jun 20, 9:42 PM CDT	River Flood Watch	DVN	Hancock	37 hr
Jun 21, 3:27 PM CDT	Flash Flood Warning	DVN	Henry	5 hr
Jun 21, 4:27 PM CDT	Special Weather Statement	DVN	Mercer	33 min
Jun 21, 4:39 PM CDT	Special Weather Statement	DVN	Bureau, Putnam	81 min

Nearby

River Flood Warnings in Iowa, 2018 River Flood Warnings in Illinois, 2018 Every river flood warning in 2018

Sources

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