Alert archive / Iowa / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 88, NWS Quad Cities, IA

June 27, 2019Jones County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 27, 2019, 3:45 PM CDT for Jones County, Iowa. It was in force for 45 min. 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 27, 2019, 3:45 PM CDT (20:45 UTC)
Expired: Jun 27, 2019, 4:30 PM CDT
In force: 45 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Jones County, IA

The radar

The Quad Cities radar (KDVN), 73 km from the middle of the area, began a volume at 20:49 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 27, 12:23 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 8.8 hours before the alert went out and 76 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: 1660 J/kg
Mixed-layer CIN: -133 J/kg
Mixed-layer LCL: 1139 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 72 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 severe thunderstorm 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 severe thunderstorm warning went out at Jun 27, 12:39 PM CDT, 3 hours 6 minutes earlier.

Area forecast discussion, Jun 27, 12:39 PM CDT, 3 hours 6 minutes before

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Hazardous weather outlook, Jun 27, 4:15 AM CDT, 11 hours 30 minutes before

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In the hours before

Special weather statement, Jun 27, 2:30 PM CDT, 1 hour 15 minutes before

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Local storm report, Jun 27, 2:34 PM CDT, 1 hour 11 minutes before

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Special weather statement, Jun 27, 3:05 PM CDT, 40 minutes before

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Local storm report, Jun 27, 3:26 PM CDT, 19 minutes before

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Special weather statement, Jun 27, 3:29 PM CDT, 16 minutes before

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Local storm report, Jun 27, 3:45 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
345 PM CDT THU JUN 27 2019

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

0335 PM     TSTM WND DMG     1 NW MONTICELLO         42.24N 91.20W
06/27/2019                   JONES              IA   TRAINED SPOTTER

            1-2 INCH TREE LIMBS BLOWN DOWN.

&&

DF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 1:16 PM CDT	Special Weather Statement	DVN	Buchanan, Delaware, Dubuque, Jackson	104 min
Jun 27, 1:39 PM CDT	Special Weather Statement	DVN	Buchanan	36 min
Jun 27, 2:08 PM CDT	Special Weather Statement	DVN	Buchanan, Delaware	22 min
Jun 27, 2:30 PM CDT	Special Weather Statement	DVN	Benton, Buchanan, Delaware	30 min
Jun 27, 3:05 PM CDT	Special Weather Statement	DVN	Benton, Delaware, Dubuque	25 min
Jun 27, 3:29 PM CDT	Special Weather Statement	DVN	Dubuque, Jackson, Jones, Linn	31 min
Jun 27, 4:30 PM CDT	Special Weather Statement	DVN	Cedar, Jackson	30 min
Jun 27, 4:39 PM CDT	Severe Thunderstorm Warning	DVN	Cedar	20 min
Jun 27, 5:04 PM CDT	Special Weather Statement	DVN	Delaware	26 min
Jun 27, 5:18 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware	27 min
Jun 27, 5:43 PM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Delaware, Dubuque	20 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2019 Every severe thunderstorm warning in 2019

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.