Hail and Damaging Wind in Illinois, April 8, 2020

Name: Hail and Damaging Wind in Illinois, April 8, 2020
Start: 2020-04-08T03:30
End: 2020-04-08T15:54
Location: Illinois

April 8, 2020 · NWS DVN · 21 events in 7 counties and zones

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 21

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.

What happened

The episode as NWS DVN wrote it up.

Severe thunderstorms developed along a cold front that dropped south across southeast Iowa and northwest Illinois during the afternoon hours of Wednesday, April 8, 2020. Very large hail was reported with some of the severe storms. The hardest hit areas were parts of southeast Iowa and west central Illinois, where hail stones of golf ball to softball sized were reported. Other areas that got storms saw copious amounts of small hail which covered the ground.

This was the second event of back to back days with very large hail in April 2020.

What forecasters said that day

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 Apr 8, 3:29 AM CST, 1 minute earlier.

Area forecast discussion, Apr 8, 3:29 AM CST, 1 minute before

Area Forecast Discussion
National Weather Service Quad Cities IA IL
429 AM CDT Wed Apr 8 2020

.UPDATE...
Issued at 429 AM CDT Wed Apr 8 2020

Fog has continued to thicken over the past couple hours and many
sites over east central Iowa and northwest Illinois are now reporting
visibilties below one quarter mile. Have thus issued a Dense Fog
Advisory until 9 am covering east central Iowa NE of a line from
the Quad Cities through Cedar Rapids and much of northwest
Illinois. Initially clear to partly cloudy skies should allow the
fog to burn off after sunrise.

&&

.SYNOPSIS...
Issued at 342 AM CDT Wed Apr 8 2020

The cold front that was accompanied by supercell storms with very
large hail over the forecast area last evening had since dropped
south, reaching roughly from Lake Erie through central IL into
northern MO. In it's wake, temperatures at 2 am ranged from the
mid 40s to mid 50s under mostly clear skies. Light winds and
lingering low level moisture was leading to patchy fog, locally
dense, over eastern Iowa and northwest IL, mainly north of I-80.
In the upper levels, the flow remained split with a low over
central Canada progged to dig southeast today and tonight, sending
a reinforcing cold front southward through the forecast area,
possibly triggering strong to severe thunderstorms, followed by a
much colder and windy Thursday. Much cooler, unsettled weather
will then linger through the weekend into early next week.

&&

.SHORT TERM...(Today and Tonight)
ISSUED AT 342 AM CDT Wed Apr 8 2020

In the immediate near term, trends with fog early this morning will
be watched closely as conditions will be favorable for at least
patchy dense fog and an advisory may be needed. The forecast was
updated overnight to mention areas of fog over east central Iowa
into northwest Illinois until around 8 am. With a lack of mid or
high clouds, early morning sunshine should burn off the fog rather
quickly.

Later today, a reinforcing cold front dropping through the area
will likely trigger another round of showers and thunderstorms and
post frontal rain. The general consensus has this boundary
reaching roughly I-80 at noon, then dropping well southeast of the
forecast area by 5 pm. Ahead of the front, sunshine should allow
temperatures to recover into the lower to mid 70s across the
south, while the earlier frontal passage, increasing cloud cover
and onset of at least light showers should hold the north in the
60s. Depending on the timing of the front and amount of
destabilization, there will be at least a low potential for more
severe storms over the southern half of the forecast area along
and ahead of the front as there will again be steep mid level
lapse rates and deep shear increasing through the day. SPC
maintains a Marginal Risk today for roughly the area south of
I-80 and a Slight Risk over areas roughly south of a line from
Galesburg, IL through Burlington, IA to Memphis, MO.

All showers will exit to the south by evening, with gusty
northwest winds and cold air advection lowering temperatures into
the 30s by Thursday morning.

.LONG TERM...(Thursday through Tuesday)
ISSUED AT 342 AM CDT Wed Apr 8 2020

Thursday...A tight pressure gradient and deep northwest flow will
result in a windy day and a wind advisory may be needed. Steep
low level lapse rates may be sufficient for a few showers and
slight chance pops were introduced. Temperatures will return to
more typical early spring-like readings with highs limited to the
40s to near 50.

Friday through the weekend will continue the trend of below
normal temperatures with highs limited to the 40s and 50s with
lows in the 30s through Saturday, then 40s Sunday morning. Models
are coming into better agreement with a slow moving system passing
to the south. This results in an extended stretch of rain chances
Saturday and Sunday, where pops now reach into the likely
category due to the increasing model consensus. As the system
departs Sunday night, temperatures may be sufficiently cold enough
for a hard freeze and light snow. Models diverge some in the
strength and track of a strong surface low departing into the
Great Lakes early next week, but all indicate continued well
below normal temperatures. Winds will likely be much stronger
than currently advertised for both Monday and Tuesday.

&&

.AVIATION...(For the 06Z TAFS through 06Z Wednesday Night)
ISSUED AT 1244 AM CDT Wed Apr 8 2020

Patchy fog tonight will provide a periods of MVFR conditions and
possible IFR conditions at most TAF sites. Wednesday will start
out VFR with a strong cold front dropping south through the
afternoon bringing at least scattered showers along with winds
shifting to the north-northwest gusting up to 25kts in the
afternoon into the evening. There is a low potential for
thunderstorms at BRL, with no mention in the forecasts elsewhere.
Conditions are optimistically kept prevailing VFR through the day
into the evening, but MVFR type ceilings cannot be ruled out.

&&

.HYDROLOGY...
ISSUED AT 342 AM CDT Wed Apr 8 2020

Little to no change was made to the river forecasts this evening. A
tenth of a foot higher crest is forecast for Rock Island LD 15,
Gladstone LD 18, and Burlington. The timing of the crests on the
Mississippi have not changed from the morning's forecast.

Previous Discussion:

Minor to moderate flooding will continue to be on track through the
weekend and mid April. Incoming crests have been adjusted a bit
sooner/happening slightly quicker at several sites, with many sites
cresting from this Thursday through Sunday. The early sites will be
Dubuque to Bellevue which will be cresting Wednesday. The crest will
then work downstream to the Quad Cities with the brunt of the crest
occurring by Friday evening. The bulk of the passing crest will then
move through sites south of the Quad Cities from Friday April 10th
through Sunday the 12th of April.

There may be several chances for precip over the next seven days
with passing weather systems, but the overall coverage and amounts
will be on the light to moderate side through the period, thus not
much impact on the passing crest. There may be a window late in the
upcoming weekend into early next week for a chance of moderate to
locally heavy precip, if a system can come together and organize.
With cooler temperature trends, both rain or snow may be possible
with this system.

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...Dense Fog Advisory until 9 AM CDT this morning for Benton-
     Buchanan-Cedar-Clinton-Delaware-Dubuque-Jackson-Jones-Linn-
     Muscatine-Scott.

IL...Dense Fog Advisory until 9 AM CDT this morning for Carroll-Henry
     IL-Jo Daviess-Rock Island-Stephenson-Whiteside.

MO...NONE.
&&

UPDATE...Sheets
SYNOPSIS...Sheets
SHORT TERM...Sheets
LONG TERM...Sheets
AVIATION...Sheets
HYDROLOGY...Gross

Hazardous weather outlook, Apr 8, 3:02 AM CST, 28 minutes before

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
402 AM CDT Wed Apr 8 2020

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-090915-
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-
402 AM CDT Wed Apr 8 2020

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

Severe thunderstorms are possible this afternoon over areas south
of Interstate 80 along and ahead of a strong cold front. Isolated
supercells with large hail and damaging wind will be possible.

Flooding continues along the Mississippi River. Please see the
latest Flood Statements and Flood Warnings for details.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Thursday will be windy with northwest winds from 25 to 35 mph with
gusts over 45 mph. The strong winds may result in an enhanced
threat of grass fires.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon.

Sheets

In the hours before

Local storm report, Apr 7, 10:40 PM CST, 4 hours 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1140 PM CDT TUE APR 7 2020

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

0835 PM     HAIL             2 NW SPRINGDALE         41.69N 91.30W
04/07/2020  E0.50 INCH       CEDAR              IA   PUBLIC

0805 PM     HAIL             WHEATLAND               41.83N 90.84W
04/07/2020  E0.50 INCH       CLINTON            IA   PUBLIC

            REPORT FROM MPING: HALF-INCH (0.50 IN.).

0918 PM     HAIL             3 S SWEETLAND CENTER    41.46N 90.97W
04/07/2020  E1.25 INCH       MUSCATINE          IA   PUBLIC

            REPORT FROM MPING: HALF DOLLAR (1.25 IN.).

&&

GROSS

Local storm report, Apr 7, 10:41 PM CST, 4 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1141 PM CDT TUE APR 7 2020

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

0900 PM     HAIL             1 N CARBON CLIFF        41.51N 90.39W
04/07/2020  M1.50 INCH       ROCK ISLAND        IL   TRAINED SPOTTER

&&

GROSS

Local storm report, Apr 7, 10:47 PM CST, 4 hours 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1147 PM CDT TUE APR 7 2020

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

0840 PM     HAIL             2 W BETTENDORF          41.57N 90.51W
04/07/2020  M1.00 INCH       SCOTT              IA   PUBLIC

            REPORT FROM MPING: QUARTER (1.00 IN.).

&&

GROSS

Local storm report, Apr 7, 10:57 PM CST, 4 hours 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1157 PM CDT TUE APR 7 2020

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

0641 PM     HAIL             2 ENE HIAWATHA          42.06N 91.65W
04/07/2020  E2.00 INCH       LINN               IA   TRAINED SPOTTER

&&

Local storm report, Apr 7, 10:59 PM CST, 4 hours 31 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1159 PM CDT TUE APR 7 2020

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

0552 PM     HAIL             HIAWATHA                42.05N 91.68W
04/07/2020  M0.25 INCH       LINN               IA   TRAINED SPOTTER

0608 PM     HAIL             4 NNE STOCKTON          42.40N 89.99W
04/07/2020  M0.70 INCH       JO DAVIESS         IL   TRAINED SPOTTER

0612 PM     HAIL             4 WSW WAUBEEK           42.14N 91.54W
04/07/2020  M0.70 INCH       LINN               IA   TRAINED SPOTTER

            HAIL WAS INCREASING IN SIZE DURING THE PHONE
            CALL.

0620 PM     HAIL             ORANGEVILLE             42.47N 89.64W
04/07/2020  M1.75 INCH       STEPHENSON         IL   PUBLIC

            RELAYED FROM BROADCAST MEDIA.

0622 PM     HAIL             3 E ROCK GROVE          42.46N 89.46W
04/07/2020  M0.25 INCH       STEPHENSON         IL   TRAINED SPOTTER

0629 PM     HAIL             1 ENE ANAMOSA           42.11N 91.27W
04/07/2020  M1.00 INCH       JONES              IA   TRAINED SPOTTER

0630 PM     HAIL             ANAMOSA                 42.11N 91.28W
04/07/2020  M0.88 INCH       JONES              IA   TRAINED SPOTTER

0640 PM     HAIL             2 NW MARION             42.05N 91.61W
04/07/2020  M2.00 INCH       LINN               IA   TRAINED SPOTTER

0640 PM     HAIL             2 W HIAWATHA            42.04N 91.72W
04/07/2020  M1.75 INCH       LINN               IA   TRAINED SPOTTER

0640 PM     HAIL             1 W HIAWATHA            42.04N 91.71W
04/07/2020  M1.00 INCH       LINN               IA   TRAINED SPOTTER

0641 PM     HAIL             2 ENE HIAWATHA          42.06N 91.65W
04/07/2020  E2.00 INCH       LINN               IA   TRAINED SPOTTER

0642 PM     HAIL             HIAWATHA                42.05N 91.68W
04/07/2020  E1.50 INCH       LINN               IA   TRAINED SPOTTER

            QUARTER TO GOLF BALL SIZE HAIL.

0644 PM     HAIL             3 ESE HIAWATHA          42.03N 91.64W
04/07/2020  M2.75 INCH       LINN               IA   BROADCAST MEDIA

            MEASURED AT KGAN.

0644 PM     HAIL             MARION                  42.04N 91.59W
04/07/2020  E1.00 INCH       LINN               IA   PUBLIC

            QUARTER SIZE HAIL COVERING THE ROUND.

0645 PM     HAIL             1 NNE CEDAR RAPIDS      41.98N 91.66W
04/07/2020  E2.50 INCH       LINN               IA   PUBLIC

0645 PM     HAIL             1 SW MARION             42.02N 91.60W
04/07/2020  M2.50 INCH       LINN               IA   PUBLIC

0645 PM     HAIL             3 ESE HIAWATHA          42.03N 91.64W
04/07/2020  M2.00 INCH       LINN               IA   BROADCAST MEDIA

            REPORT IS FROM KGAN STUDIOS. AT LEAST ONE
            BROKEN WIDSHIELD.

0645 PM     HAIL             2 WSW MARION            42.03N 91.62W
04/07/2020  M2.00 INCH       LINN               IA   PUBLIC

0645 PM     HAIL             HIAWATHA                42.05N 91.68W
04/07/2020  M1.75 INCH       LINN               IA   TRAINED SPOTTER

            CONSIDERABLE DAMAGE TO VEHICLES.

0646 PM     HAIL             2 W MARION              42.03N 91.63W
04/07/2020  E2.25 INCH       LINN               IA   PUBLIC

            REPORT FROM MPING: HEN EGG+ (2.25 IN.).

0646 PM     HAIL             2 WSW MARION            42.02N 91.63W
04/07/2020  M1.75 INCH       LINN               IA   TRAINED SPOTTER

0646 PM     HAIL             2 SE HIAWATHA           42.02N 91.66W
04/07/2020  M1.75 INCH       LINN               IA   TRAINED SPOTTER

0647 PM     HAIL             HIAWATHA                42.05N 91.68W
04/07/2020  M2.00 INCH       LINN               IA   PUBLIC

            CORRECTED THE TIME.

0648 PM     HAIL             2 ENE MARION            42.04N 91.56W
04/07/2020  E1.75 INCH       LINN               IA   TRAINED SPOTTER

0649 PM     HAIL             1 NW MARION             42.05N 91.61W
04/07/2020  E1.00 INCH       LINN               IA   TRAINED SPOTTER

0652 PM     HAIL             2 N CEDAR RAPIDS        41.99N 91.66W
04/07/2020  E1.75 INCH       LINN               IA   TRAINED SPOTTER

0654 PM     HAIL             MARION                  42.03N 91.60W
04/07/2020  E1.75 INCH       LINN               IA   PUBLIC

0654 PM     HAIL             1 N MARION              42.06N 91.59W
04/07/2020  E1.50 INCH       LINN               IA   TRAINED SPOTTER

            QUARTER TO PING PONG SIZE HIAL AT HIGHWAY 13
            AND 100.

0654 PM     HAIL             2 ENE MARION            42.05N 91.56W
04/07/2020  M1.50 INCH       LINN               IA   TRAINED SPOTTER

0655 PM     HAIL             CEDAR RAPIDS            41.98N 91.67W
04/07/2020  M1.00 INCH       LINN               IA   PUBLIC

0702 PM     HAIL             1 NE FAIRFAX            41.93N 91.77W
04/07/2020  M1.00 INCH       LINN               IA   TRAINED SPOTTER

0703 PM     HAIL             2 ENE MARION            42.04N 91.56W
04/07/2020  M1.75 INCH       LINN               IA   TRAINED SPOTTER

0704 PM     HAIL             3 NNE FAIRFAX           41.96N 91.75W
04/07/2020  M1.00 INCH       LINN               IA   TRAINED SPOTTER

0706 PM     HAIL             4 NE FAIRFAX            41.97N 91.75W
04/07/2020  U1.00 INCH       LINN               IA   PUBLIC

0710 PM     HAIL             3 SSE CEDAR RAPIDS      41.93N 91.65W
04/07/2020  E1.00 INCH       LINN               IA   TRAINED SPOTTER

0718 PM     HAIL             2 WNW FREEPORT          42.30N 89.67W
04/07/2020  M0.50 INCH       STEPHENSON         IL   TRAINED SPOTTER

0719 PM     HAIL             FREEPORT                42.29N 89.63W
04/07/2020  M1.00 INCH       STEPHENSON         IL   TRAINED SPOTTER

0719 PM     HAIL             FREEPORT                42.28N 89.63W
04/07/2020  M0.70 INCH       STEPHENSON         IL   TRAINED SPOTTER

0736 PM     HAIL             4 N BUCHANAN            41.82N 91.25W
04/07/2020  E1.00 INCH       CEDAR              IA   PUBLIC

0739 PM     HAIL             STANWOOD                41.89N 91.15W
04/07/2020  M1.00 INCH       CEDAR              IA   TRAINED SPOTTER

0742 PM     HAIL             LOWDEN                  41.86N 90.92W
04/07/2020  E1.75 INCH       CEDAR              IA   CO-OP OBSERVER

0748 PM     HAIL             TIPTON                  41.77N 91.13W
04/07/2020  M1.00 INCH       CEDAR              IA   PUBLIC

0749 PM     HAIL             MARION                  42.03N 91.60W
04/07/2020  M1.50 INCH       LINN               IA   PUBLIC

0753 PM     HAIL             TIPTON                  41.77N 91.13W
04/07/2020  E1.00 INCH       CEDAR              IA   TRAINED SPOTTER

0753 PM     HAIL             TIPTON                  41.77N 91.13W
04/07/2020  M0.70 INCH       CEDAR              IA   PUBLIC

0754 PM     HAIL             OXFORD                  41.73N 91.79W
04/07/2020  E1.00 INCH       JOHNSON            IA   LAW ENFORCEMENT

            SHERIFF DEPUTY ESTIMATED QUARTER.

0755 PM     HAIL             1 S TIPTON              41.76N 91.13W
04/07/2020  M1.50 INCH       CEDAR              IA   PUBLIC

0759 PM     HAIL             LOWDEN                  41.86N 90.92W
04/07/2020  M1.50 INCH       CEDAR              IA   CO-OP OBSERVER

            HAIL WAS MAINLY DIME TO QUARTER WITH LARGEST
            HAILSTONE BEING 1.5 INCHES.

0801 PM     HAIL             1 SE NORTH LIBERTY      41.73N 91.59W
04/07/2020  E0.25 INCH       JOHNSON            IA   TRAINED SPOTTER

0805 PM     HAIL             WHEATLAND               41.83N 90.84W
04/07/2020  E0.50 INCH       CLINTON            IA   PUBLIC

            REPORT FROM MPING: HALF-INCH (0.50 IN.).

0810 PM     HAIL             1 SSW NORTH LIBERTY     41.73N 91.62W
04/07/2020  M0.25 INCH       JOHNSON            IA   TRAINED SPOTTER

0812 PM     HAIL             SUNBURY                 41.67N 90.93W
04/07/2020  E1.00 INCH       CEDAR              IA   TRAINED SPOTTER

0819 PM     HAIL             DONAHUE                 41.69N 90.67W
04/07/2020  M0.75 INCH       SCOTT              IA   PUBLIC

0829 PM     HAIL             4 WNW DAVENPORT         41.59N 90.67W
04/07/2020  M1.75 INCH       SCOTT              IA   TRAINED SPOTTER

            CORRECTS PREVIOUS TIME OF THE REPORT FROM
            831 TO 829. HAIL REPORT FROM 4 WNW
            DAVENPORT. SPOTTER REPORTED GOLF BALL SIZE
            HAIL AT WEST KIMBERLY AND I-280.

0831 PM     HAIL             4 NW DAVENPORT          41.59N 90.67W
04/07/2020  E2.00 INCH       SCOTT              IA   TRAINED SPOTTER

0835 PM     HAIL             2 NW SPRINGDALE         41.69N 91.30W
04/07/2020  E0.50 INCH       CEDAR              IA   PUBLIC

0837 PM     HAIL             DAVENPORT MUNICIPALITY  41.62N 90.58W
04/07/2020  E1.00 INCH       SCOTT              IA   NWS EMPLOYEE

0839 PM     HAIL             1 N DAVENPORT           41.57N 90.61W
04/07/2020  M1.00 INCH       SCOTT              IA   TRAINED SPOTTER

0840 PM     HAIL             2 ENE DAVENPORT         41.57N 90.58W
04/07/2020  E2.00 INCH       SCOTT              IA   TRAINED SPOTTER

0840 PM     HAIL             1 NNW DAVENPORT         41.57N 90.61W
04/07/2020  E1.25 INCH       SCOTT              IA   TRAINED SPOTTER

0840 PM     HAIL             2 W BETTENDORF          41.57N 90.51W
04/07/2020  M1.00 INCH       SCOTT              IA   PUBLIC

            REPORT FROM MPING: QUARTER (1.00 IN.).

0841 PM     HAIL             3 E DAVENPORT           41.55N 90.55W
04/07/2020  E2.00 INCH       SCOTT              IA   NWS EMPLOYEE

            1.50 TO 2.00 INCH HAIL.

0841 PM     HAIL             1 NE DAVENPORT          41.57N 90.59W
04/07/2020  M1.75 INCH       SCOTT              IA   NWS EMPLOYEE

0842 PM     HAIL             2 W BETTENDORF          41.57N 90.51W
04/07/2020  M1.75 INCH       SCOTT              IA   NWS EMPLOYEE

0844 PM     HAIL             1 NW DAVENPORT          41.56N 90.62W
04/07/2020  M1.25 INCH       SCOTT              IA   TRAINED SPOTTER

0845 PM     HAIL             2 W BETTENDORF          41.55N 90.52W
04/07/2020  U2.00 INCH       SCOTT              IA   PUBLIC

0845 PM     HAIL             2 SSE DAVENPORT         41.53N 90.59W
04/07/2020  E1.50 INCH       SCOTT              IA   TRAINED SPOTTER

0845 PM     HAIL             BETTENDORF              41.56N 90.48W
04/07/2020  M1.00 INCH       SCOTT              IA   TRAINED SPOTTER

0846 PM     HAIL             3 ESE DAVENPORT         41.54N 90.54W
04/07/2020  M1.50 INCH       SCOTT              IA   NWS EMPLOYEE

0849 PM     HAIL             2 WSW BETTENDORF        41.56N 90.51W
04/07/2020  E1.75 INCH       SCOTT              IA   TRAINED SPOTTER

            A FEW STONES WERE GOLF BALL SIZE.

0852 PM     HAIL             1 W BETTENDORF          41.56N 90.49W
04/07/2020  E1.25 INCH       SCOTT              IA   TRAINED SPOTTER

            MOSTLY PEA SIZED HIAL WITH A FEW SILVER
            DOLLAR SIZED HAILSTONES.

0855 PM     HAIL             3 W RIVERDALE           41.53N 90.53W
04/07/2020  M1.75 INCH       SCOTT              IA   TRAINED SPOTTER

0900 PM     HAIL             1 N CARBON CLIFF        41.51N 90.39W
04/07/2020  M1.50 INCH       ROCK ISLAND        IL   TRAINED SPOTTER

0909 PM     HAIL             2 E KALONA              41.49N 91.66W
04/07/2020  M0.88 INCH       WASHINGTON         IA   TRAINED SPOTTER

0912 PM     HAIL             RIVERSIDE               41.48N 91.58W
04/07/2020  M1.00 INCH       WASHINGTON         IA   TRAINED SPOTTER

0913 PM     HAIL             4 N MUSCATINE           41.48N 91.07W
04/07/2020  M0.88 INCH       MUSCATINE          IA   TRAINED SPOTTER

0918 PM     HAIL             3 S SWEETLAND CENTER    41.46N 90.97W
04/07/2020  E1.25 INCH       MUSCATINE          IA   PUBLIC

            REPORT FROM MPING: HALF DOLLAR (1.25 IN.).

0918 PM     HAIL             2 N MUSCATINE           41.47N 91.05W
04/07/2020  E1.00 INCH       MUSCATINE          IA   CO-OP OBSERVER

0920 PM     HAIL             1 SSW GENESEO           41.44N 90.16W
04/07/2020  E0.70 INCH       HENRY              IL   TRAINED SPOTTER

            PEA TO DIME SIZE HAIL.

0937 PM     HAIL             CONESVILLE              41.38N 91.35W
04/07/2020  E2.00 INCH       MUSCATINE          IA   FIRE DEPT/RESCUE

            REPORT FROM FIRE DEPARTMENT CHIEF, SOME HAIL
            STONES OF 2.25 INCHES.

0939 PM     HAIL             CONESVILLE              41.38N 91.35W
04/07/2020  M1.50 INCH       MUSCATINE          IA   FIRE DEPT/RESCUE

            REPORTED BY CONESVILLE VOLUNTEER
            FIREFIGHTER.

0940 PM     HAIL             CONESVILLE              41.38N 91.35W
04/07/2020  E1.75 INCH       MUSCATINE          IA   PUBLIC

0945 PM     HAIL             3 WNW OAK GROVE         41.43N 90.62W
04/07/2020  E0.50 INCH       ROCK ISLAND        IL   TRAINED SPOTTER

            PEA TO DIMES.

0947 PM     HAIL             2 W MUSCATINE MUNICIPAL 41.37N 91.18W
04/07/2020  M1.75 INCH       MUSCATINE          IA   PUBLIC

            REPORT FROM SOCIAL MEDIA WITH PICTURES.

0951 PM     HAIL             2 ESE SAND SPRINGS      41.31N 91.15W
04/07/2020  M1.00 INCH       LOUISA             IA   TRAINED SPOTTER

            NICKEL TO QUARTERS.

0953 PM     HAIL             1 SSE SAND SPRINGS      41.30N 91.18W
04/07/2020  M1.50 INCH       LOUISA             IA   TRAINED SPOTTER

1045 PM     HAIL             1 E ALEXIS              41.06N 90.55W
04/07/2020  M1.25 INCH       WARREN             IL   TRAINED SPOTTER

            HAIL WAS 3/4 TO 1.5 INCHES WITH MOST STONES
            AT QUARTER SIZED.

&&

GROSS

Special weather statement, Apr 8, 2:43 AM CST, 47 minutes before

Special Weather Statement
National Weather Service Quad Cities IA IL
343 AM CDT Wed Apr 8 2020

IAZ040>042-053-054-ILZ001-002-007-081200-
Buchanan-Delaware-Dubuque-Jones-Jackson-Jo Daviess-Stephenson-
Carroll-
Including the cities of Independence, Manchester, Dubuque,
Anamosa, Maquoketa, Galena, Freeport, and Mount Carroll
343 AM CDT Wed Apr 8 2020

...Areas of Fog This Morning...

Areas of fog will affect portions of eastern Iowa and far
northwest Illinois early this morning. Some of the fog along
rivers and valleys, may become dense, with visibilities dropping
below a quarter of a mile.

Motorists should drive with extra caution and allow additional
travel time. Use low beams, reduce speed, and allow for plenty of
room between you and other cars.

GROSS

The radar

The Quad Cities radar (KDVN), 38 km away, was scanning. The volume nearest the first event began at 09:32 UTC.

Open the radar archive at this moment

Event by event

20 hail, 1 thunderstorm wind. Local standard time, as filed.

Hail, Rock Island

When: April 8, 3:30 AM CST
Where: Rock Island County, 1.04 mi E of Buffalo Prairie
Measured: 1 in hail
Reported by: Public
Coordinates: 41.330, -90.830

Hail, Hancock

When: April 8, 2:24 PM CST
Where: Hancock County, Nauvoo
Measured: 0.75 in hail
Reported by: Public
Coordinates: 40.550, -91.380

Hail, Hancock

When: April 8, 2:25 PM CST
Where: Hancock County, Nauvoo
Measured: 0.75 in hail
Reported by: Public
Coordinates: 40.550, -91.380

Hail, Hancock

When: April 8, 2:28 PM CST to 2:30 PM CST
Where: Hancock County, 1.38 mi N of Nauvoo
Measured: 0.88 in hail
Reported by: Trained Spotter
Coordinates: 40.570, -91.380

Hail, Henderson

When: April 8, 2:31 PM CST
Where: Henderson County, 1.57 mi E of Shokokon
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 40.750, -91.040

Hail, Henderson

When: April 8, 2:44 PM CST
Where: Henderson County, 1.73 mi SE of Carman
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 40.710, -91.050

Hail, McDonough

When: April 8, 2:55 PM CST
Where: McDonough County, 0.53 mi W of Macomb
Measured: 1.25 in hail
Reported by: Public
Coordinates: 40.470, -90.680

Received through social media.

Hail, Hancock

When: April 8, 2:59 PM CST
Where: Hancock County, Fountain Green
Measured: 1 in hail
Reported by: Public
Coordinates: 40.480, -90.970

Received through social media.

Hail, McDonough

When: April 8, 3:00 PM CST to 3:10 PM CST
Where: McDonough County, 3.81 mi SE of Blandinsville
Measured: 0.75 in hail
Reported by: Trained Spotter
Coordinates: 40.510, -90.820

The hail covered the ground and lasted 10 minutes.

Hail, Warren

When: April 8, 3:00 PM CST
Where: Warren County, Coldbrook
Measured: 1.75 in hail
Reported by: Public
Coordinates: 40.950, -90.520

The time was estimated from radar.

Hail, McDonough

When: April 8, 3:05 PM CST
Where: McDonough County, 2.52 mi WSW of Macomb
Measured: 0.88 in hail
Reported by: Trained Spotter
Coordinates: 40.450, -90.710

Nickel hail covered the ground.

Hail, McDonough

When: April 8, 3:09 PM CST
Where: McDonough County, 0.53 mi E of Colchester
Measured: 1.5 in hail
Reported by: Trained Spotter
Coordinates: 40.430, -90.790

Hail, McDonough

When: April 8, 3:10 PM CST
Where: McDonough County, 2.07 mi S of Macomb
Measured: 1.75 in hail
Reported by: Trained Spotter
Coordinates: 40.440, -90.670

Hail, McDonough

When: April 8, 3:11 PM CST
Where: McDonough County, 0.69 mi N of Good Hope
Measured: 0.75 in hail
Reported by: Public
Coordinates: 40.560, -90.680

Hail, McDonough

When: April 8, 3:12 PM CST
Where: McDonough County, 2.21 mi ENE of Bardolph
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 40.510, -90.530

Hail, McDonough

When: April 8, 3:15 PM CST
Where: McDonough County, 1.48 mi NNW of Pennington Pt
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 40.420, -90.560

Thunderstorm Wind, McDonough

When: April 8, 3:15 PM CST
Where: McDonough County, 1.48 mi NNW of Pennington Pt
Measured: 56 kt (64 mph) measured gust
Reported by: Trained Spotter
Coordinates: 40.420, -90.560

A spotter measured winds of 65 mph winds.

Hail, Hancock

When: April 8, 3:25 PM CST
Where: Hancock County, Augusta
Measured: 1 in hail
Reported by: COOP Observer
Coordinates: 40.230, -90.950

Dime to quarter size hail reported.

Hail, Rock Island

When: April 8, 3:30 PM CST
Where: Rock Island County, 1.04 mi E of Buffalo Prairie
Measured: 1 in hail
Reported by: Public
Coordinates: 41.330, -90.830

Dime to quarter size hail reported.

Hail, Mercer

When: April 8, 3:32 PM CST
Where: Mercer County, 1.48 mi NNE of Boden
Measured: 0.88 in hail
Reported by: Public
Coordinates: 41.270, -90.570

Received through social media.

Hail, Henry

When: April 8, 3:54 PM CST
Where: Henry County, 0.52 mi E of Galva
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 41.170, -90.040

City of Galva volunteer emergency management reported pea to quarter size hail.

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Illinois in 2020 Every state in 2020 This day in weather history Warnings in Illinois, April 2020

Sources

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: 885900, 885901, 885902, 885903, 885904, 885905, 885906, 885907, 885908, 885909, 885910, 885911, 885912, 885913, 885915, 885916, 885921, 885917, 885918, 885919, 885920.