A line of thunderstorms tracked southeast across northeast Iowa into eastern Iowa and northwest Illinois during the afternoon and evening of Sunday, June 30, 2019, bringing widespread downed trees and power lines as 50-70 mph winds rolled through. The strongest winds were recorded in Dubuque County, where a wind gust of 76 mph was observed at the Dubuque Regional Airport.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS DVN wrote it up.
A line of thunderstorms tracked southeast across northeast Iowa into eastern Iowa and northwest Illinois during the afternoon and evening of Sunday, June 30, 2019, bringing widespread downed trees and power lines as 50-70 mph winds rolled through. The strongest winds were recorded in Dubuque County, where a wind gust of 76 mph was observed at the Dubuque Regional Airport. Several hometowns were without power after the storms passed.
The local office's own words before the first event, 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 the first event at Jun 30, 2:42 PM CST, 2 hours 5 minutes earlier.
Area Forecast Discussion
National Weather Service Quad Cities IA IL
342 PM CDT Sun Jun 30 2019
.SYNOPSIS...
Issued at 330 PM CDT Sun Jun 30 2019
Warm based ridge with ringing northern periphery storm track will
look to continue for much of the week, with a flattening trends mid
to late week. Thus with the CWA being in the vicinity of this track,
there will be at almost a daily risk of storm clusters or at
least isolated development much of the week, as well as seasonably
warm and humid conditions. Will let heat advisory ride this
evening although some storm outflow cooling relief in spots.
&&
.SHORT TERM...(This Evening through Monday)
ISSUED AT 330 PM CDT Sun Jun 30 2019
Tonight...While the IL storms continue to drop southward into
central IL, expect portion of storm clusters in far southern MN to
drop south along high instability gradient down into northeast and
east central IA counties of the area this evening. With very high
CAPE build up, a good chance that some of these storms will be
severe and produce damaging winds, as well as locally heavy
rainfall. A convective watch has been issued for this potential.
Other isolated storms may fire on the remnants/outflow of the
southward passing MCS in IL as well, and will adjust POPs for both
possibilities. After that, later night MCS spawning grounds take
shape acrs SD into western and southwest MN, with some chance of
this activity bleeding down into the northern or northeastern CWA
by early Monday morning. Or there could be new development on the
northeast portion of the storm track ring on nose of convergent LLJ
later tonight from far southeast MN into north central IL and get
into the northern and eastern portions of the CWA by that means as
well. Besides damaging winds, areas that get hit several times by
these storm chances may be susceptible to localized flash flooding
with all the ambient moisture/PWATs available.
Monday...After any lingering morning convection decays or moves out,
much of the day may be capped, hot and humid. There will be the
potential for another heat advisory having to be hoisted if
convective debris clears in time or is minimal. Most models are dry
through Tuesday morning with the bulk of the storms shunted to the
north again acrs the Dakotas/MN/WI. But will have to carry low POPs
Monday night into Tue morning in the north and northeast for the
potentail of a more southward propagation potential.
.LONG TERM...(Tuesday through next Sunday)
ISSUED AT 330 PM CDT Sun Jun 30 2019
Tuesday through next Sunday...In brief, Tuesday may be similar to
Monday being hot and humid with nighttime storm chances, before
signs of the continued ridge dampening may bring the storm track
further south for a more direct line acrs the local area Wednesday
into Friday. Rounds of moderate to heavy rainfall may start to
add up acrs portions of the area mid to late week with some local
river implications possible. Still some longer range indications
suggesting that maybe high pressure building south down acrs the
Upper MS RVR Valley and GRT LKS may shunt the brunt of the storm
track or convective action zone further to the south of the region
from KS over to the OH RVR Valley from late Friday and through
the next weekend. But latest long range model trends arn't as
aggressive with this shift as previous runs.
&&
.AVIATION...(For the 18Z TAFS through 18Z Monday Afternoon)
ISSUED AT 1234 PM CDT Sun Jun 30 2019
VFR TAFs are expected through the period. Removed the mention of
VCTS from the TAFs as storms are currently expected to remain east
of the all TAF sites. If storms end up impacting either KDBQ or
KMLI a period of MVFR ceilings and visibilties is possible.
&&
.HYDROLOGY...
Issued at 1200 PM CDT Sun Jun 30 2019
With an active ring of fire pattern still looking to be on track for
much of the week for the upper Midwest, it still appears that the
resultant rounds of heavy rain will most likley occur acrs areas to
the north over southern MN, northern IA and WI. Some recent heavy
rainfall has already fallen acrs portions of these areas during the
past few days. This and additional rounds of rain will run-off and
eventually make it into the upper basin of the Mississippi River
system and flow southward. This will most likely produce eventual
rises on the local stretch of the Mississippi during this coming
first week of July. Currently most sites on the MS RVR are still
falling with the last site still in flood-Gregory Landing expected
to fall below the flood stage tonight. But areas to the north from
Dubuque down to Fulton are already showing steady to slow rises from
the recent rains upstream. This flow will continue to work on down
and continue to produce rises at the other sites through the
upcoming week. But with the recent downtrends along much of the
local stretch of the Mississippi, most rises are projected to remain
nominal and below the action stage. The exceptions may be at some of
the southern sites that are still high such as Keithsburg, Gladstone
LD18, Burlington, and Gregory Landing which are prevented from
falling below the action stage from the additional flow routed
through those sites. Some chance that Gladstone, Burlington and
Gregory Landing may approach the flood stage again by late next
weekend.
Some of the tributary rivers with reaches further to the north will
experience rises into next week as well from recent and projected
heavy rainfall in those areas. Rivers such as the Cedar, Iowa, and
Wapsi will experience rising trends, with a few sites making over
the action stage or held up above action if already over that stage.
The Wapsi at De Witt may rise to just under the flood stage by the
5th or 6th of July. Rain further south over the local area during
the mid to late week may further impact local tributary rivers by
next weekend.
&&
.DVN WATCHES/WARNINGS/ADVISORIES...
IA...Heat Advisory until 9 PM CDT this evening for Benton-Buchanan-
Cedar-Clinton-Delaware-Des Moines-Dubuque-Henry IA-Iowa-
Jackson-Jefferson-Johnson-Jones-Keokuk-Lee-Linn-Louisa-
Muscatine-Scott-Van Buren-Washington.
IL...Heat Advisory until 9 PM CDT this evening for Bureau-Carroll-
Hancock-Henderson-Henry IL-Jo Daviess-McDonough-Mercer-
Putnam-Rock Island-Stephenson-Warren-Whiteside.
MO...Heat Advisory until 9 PM CDT this evening for Clark-Scotland.
&&
SYNOPSIS...12
SHORT TERM...12
LONG TERM...12
AVIATION...Cousins
HYDROLOGY...12Hazardous Weather Outlook National Weather Service Quad Cities IA IL 435 PM CDT Sun Jun 30 2019 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-011000- 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- 435 PM CDT Sun Jun 30 2019 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...TONIGHT Strong to severe thunderstorms are likely across portions of the Outlook Area through the evening as a line of storms moves in from the north. Damaging winds will be the primary threat, with large hail a secondary concern. These storms will also be capable of producing locally heavy rainfall and possible flash flooding. More isolated to scattered storms may then be possible late tonight into early Monday morning, especially on the Illinois side of the Outlook Area. The Storm Prediction center has a Slight Risk for severe storms through tonight for most of the Outlook Area. Other areas such as southeast Iowa and northeast Missouri are in a Marginal Risk for severe weather. A Heat Advisory continues through sunset this evening with heat indices of 100 to 105 degrees. Area rivers are experiencing flooding. Please see the latest Flood Statements and Flood Warnings for details. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY Hot and humid weather will persist Monday and Tuesday posing a heat risk. Thunderstorms chances will increase again Tuesday and persist through Saturday. It is too early to be specific, but there will probably be some risk for severe weather and heavy rain sometime during this time frame, and of course, lightning will be a threat with all thunderstorms. .SPOTTER INFORMATION STATEMENT... Spotter activation is likely through this evening for portions of the Outlook Area. 12
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
517 PM CDT SUN JUN 30 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0510 PM TSTM WND DMG 1 NNW INDEPENDENCE 42.49N 91.90W
06/30/2019 BUCHANAN IA TRAINED SPOTTER
TREE LIMBS AND UTILITY LINES DOWN.
&&
GROSSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
518 PM CDT SUN JUN 30 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0511 PM TSTM WND DMG EARLVILLE 42.48N 91.27W
06/30/2019 DELAWARE IA EMERGENCY MNGR
ROOF BLOW OFF A HOUSE IN TOWN.
&&
DCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
520 PM CDT SUN JUN 30 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0517 PM TSTM WND DMG NEW VIENNA 42.55N 91.11W
06/30/2019 DUBUQUE IA EMERGENCY MNGR
TREE LIMBS DOWN IN TOWN.
0517 PM TSTM WND GST NEW VIENNA 42.55N 91.11W
06/30/2019 E60 MPH DUBUQUE IA EMERGENCY MNGR
0502 PM TSTM WND DMG 1 S HAZLETON 42.60N 91.91W
06/30/2019 BUCHANAN IA TRAINED SPOTTER
CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1
S HAZLETON. LARGE TREE LIMB DOWN IN FONTANA
PARK. TWO FOOT DIAMETER TREE DOWN IN THE
PARK WITH NUMEROUS OTHER TREES DOWN.
&&
GROSSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
526 PM CDT SUN JUN 30 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0518 PM TSTM WND DMG 1 N MASONVILLE 42.50N 91.59W
06/30/2019 DELAWARE IA EMERGENCY MNGR
LARGE TREE DOWN BLOCKING RURAL ROAD NORTH OF
MASONVILLE.
0507 PM TSTM WND DMG DUNDEE 42.58N 91.55W
06/30/2019 DELAWARE IA EMERGENCY MNGR
NUMEROUS TREES DOWN IN TOWN, TIME ESTIMATED
FROM RADAR.
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
544 PM CDT SUN JUN 30 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0543 PM TSTM WND DMG INDEPENDENCE 42.47N 91.89W
06/30/2019 BUCHANAN IA TRAINED SPOTTER
NUMEROUS REPORTS OF BRANCHES DOWN SOME AS
LARGE AS 5 INCHES IN DIAMETER. A COUPLE
REPORTS OF TREES ABOUT 12 TO 24 INCHES IN
DIAMETER SNAPPED OFF 3 FEET OFF THE GROUND.
&&
DCPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
547 PM CDT SUN JUN 30 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0510 PM TSTM WND DMG INDEPENDENCE 42.47N 91.89W
06/30/2019 BUCHANAN IA TRAINED SPOTTER
CORRECTS PREVIOUS TSTM WND DMG REPORT FROM
INDEPENDENCE. NUMEROUS REPORTS OF BRANCHES
DOWN SOME AS LARGE AS 5 INCHES IN DIAMETER.
A COUPLE REPORTS OF TREES ABOUT 12 TO 24
INCHES IN DIAMETER SNAPPED OFF 3 FEET OFF
THE GROUND.
&&
DCThe Quad Cities radar (KDVN), 95 km away, was scanning. The volume nearest the first event began at 22:45 UTC.
22 thunderstorm wind. Local standard time, as filed.
A trained spotter reported a large 9 to 12 inch diameter tree limb down.
A trained spotter reported an 8 inch diameter tree limb down.
A public report via social media of a shed flipped and destroyed on Simmons Steet. The time of the event was estimated using radar.
Emergency Manager reported trees and power lines down.
The Emergency Manager reported trees and power lines down.
The Emergency Manager relayed a report of an estimated wind gust around 65 MPH.
The Emergency Manager reported trees and power lines down.
A trained spotter reported 2 to 3 inch tree limbs down and power is out. The time of event was estimated using radar.
A public report via social media of a large tree branches down. The time of the event was estimated using radar.
The public reported that a large 3 foot diameter tree was snapped off at the base. Picture of the tree received via social media. The time of the event was estimated using radar.
A public report of a 6 inch tree limb down via Twitter. The time of the event was estimated using radar.
A public report via social media of numerous trees down in the city. The time of the event was estimated using radar.
A public report received via social media of three poles snapped off near the intersection of 2550 AVE and Highway B2. Time of the event was estimated using radar.
A public reported 3 to 6 inch tree limbs down.
Amateur radio relayed a report of a 60 MPH measured by a handheld anemometer.
A trained spotter reported that a large tree was uprooted. A photo of the event was sent via Twitter.
The Emergency Manager reported that a tree was snapped off at the base and down owr liens near this location.
A trained spotter reported that several small tree branches about 3 inches in diameter were down along with power lines.
Law Enforcement reported several tree branches down of unknown size. The time of the event was estimated using radar. The time of the event was estimated using radar.
A power line was reported down in Granville and a tree was down across the Highway 26 near Hennepin. The time of the event was estimated using radar.
Broadcast media relayed a report of power lines down in the La Harpe Area. The time of the event was estimated using radar.
A public report of a pine tree snapped off about 6 feet above the ground from thunderstorm winds. The time of the event was estimated using radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2019Every state in 2019This day in weather historyWarnings in Illinois, June 2019
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 833947, 833948, 833951, 833952, 833955, 834005, 833956, 833963, 833965, 833968, 833970, 833973, 833976, 833978, 834007, 833981, 833983, 833987, 833992, 833996, 833999, 834001.