Severe Thunderstorm Warning 101, NWS Quad Cities, IA

281 
WWUS53 KDVN 172051 RRA
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
351 PM CDT Fri Apr 17 2026

IAC011-019-095-103-113-172145-
/O.CON.KDVN.SV.W.0101.000000T0000Z-260417T2145Z/
Buchanan IA-Johnson IA-Benton IA-Linn IA-Iowa IA-
351 PM CDT Fri Apr 17 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR SOUTHEASTERN BUCHANAN...NORTHWESTERN JOHNSON...BENTON...WESTERN
LINN AND NORTHERN IOWA COUNTIES...

At 351 PM CDT, severe thunderstorms were located along a line
extending from Brandon to near Van Horne to near Hartwick, moving
east at 40 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Cedar Rapids, Vinton, Marengo, Marion, Hiawatha, Robins, Belle
Plaine, Center Point, Fairfax, Atkins, Walford, Urbana, Dysart, Palo,
Shellsburg, Victor, Swisher, Newhall, Oxford, and Walker.

This includes the following highways...
 Interstate 80 in Iowa between mile markers 205 and 212.
 Interstate 380 between mile markers 10 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CDT for northeastern
and east central Iowa.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

&&

LAT...LON 4230 9230 4230 9156 4229 9156 4209 9158
      4171 9169 4169 9230
TIME...MOT...LOC 2051Z 260DEG 36KT 4232 9201 4205 9205 4175 9235 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gunkel

938 
WWUS53 KDVN 172106
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
406 PM CDT Fri Apr 17 2026

IAC011-019-095-103-113-172145-
/O.CON.KDVN.SV.W.0101.000000T0000Z-260417T2145Z/
Buchanan IA-Johnson IA-Benton IA-Linn IA-Iowa IA-
406 PM CDT Fri Apr 17 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR SOUTHEASTERN BUCHANAN...NORTHWESTERN JOHNSON...BENTON...WESTERN
LINN AND NORTHERN IOWA COUNTIES...

At 405 PM CDT, severe thunderstorms were located along a line
extending from Rowley to Shellsburg to Ladora, moving east at 40 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Cedar Rapids, Vinton, Marengo, Marion, Hiawatha, Robins, Belle
Plaine, Center Point, Fairfax, Atkins, Walford, Urbana, Palo,
Shellsburg, Victor, Swisher, Newhall, Oxford, Walker, and Blairstown.

This includes the following highways...
 Interstate 80 in Iowa between mile markers 205 and 212.
 Interstate 380 between mile markers 10 and 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CDT for northeastern
and east central Iowa.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
sturdy building.

&&

LAT...LON 4230 9156 4229 9156 4209 9158 4171 9169
      4169 9230 4209 9230 4230 9203
TIME...MOT...LOC 2105Z 260DEG 36KT 4234 9183 4207 9187 4177 9217 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gunkel

814 
WWUS53 KDVN 172119
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
419 PM CDT Fri Apr 17 2026

IAC019-095-103-172129-
/O.CAN.KDVN.SV.W.0101.000000T0000Z-260417T2145Z/
Buchanan IA-Johnson IA-Iowa IA-
419 PM CDT Fri Apr 17 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BUCHANAN...
NORTHWESTERN JOHNSON AND NORTHERN IOWA COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 PM CDT for northeastern
and east central Iowa.

&&

LAT...LON 4201 9208 4230 9184 4230 9156 4229 9156
      4209 9158 4186 9165 4186 9208
TIME...MOT...LOC 2119Z 270DEG 36KT 4236 9166 4209 9170 4179 9200 

$$

IAC011-113-172145-
/O.CON.KDVN.SV.W.0101.000000T0000Z-260417T2145Z/
Benton IA-Linn IA-
419 PM CDT Fri Apr 17 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR EASTERN BENTON AND WESTERN LINN COUNTIES...

At 419 PM CDT, severe thunderstorms were located along a line
extending from near Monti to Toddville to West Amana, moving east at
40 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Cedar Rapids, Marion, Hiawatha, Robins, Center Point, Fairfax,
Atkins, Walford, Urbana, Palo, Shellsburg, Newhall, Walker,
Blairstown, Van Horne, Alburnett, Shueyville, Norway, Toddville, and
Troy Mills.

This includes Interstate 380 between mile markers 12 and 43.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CDT for northeastern
and east central Iowa.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
sturdy building.

&&

LAT...LON 4201 9208 4230 9184 4230 9156 4229 9156
      4209 9158 4186 9165 4186 9208
TIME...MOT...LOC 2119Z 270DEG 36KT 4236 9166 4209 9170 4179 9200 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gunkel

734 
WWUS53 KDVN 172130
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
430 PM CDT Fri Apr 17 2026

IAC011-113-172145-
/O.CON.KDVN.SV.W.0101.000000T0000Z-260417T2145Z/
Benton IA-Linn IA-
430 PM CDT Fri Apr 17 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR NORTHEASTERN BENTON AND WESTERN LINN COUNTIES...

At 429 PM CDT, severe thunderstorms were located along a line
extending from near Ryan to near Alburnett to Amana, moving east at
40 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Cedar Rapids, Marion, Hiawatha, Robins, Center Point, Atkins, Urbana,
Palo, Shellsburg, Walker, Alburnett, Toddville, Troy Mills, Paris,
Pleasant Creek State Recreation Area, Lafayette, Wildcat Bluff Park,
and Morgan Creek Park.

This includes Interstate 380 between mile markers 18 and 41.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CDT for northeastern
and east central Iowa.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
sturdy building.

&&

LAT...LON 4202 9195 4230 9184 4230 9156 4229 9156
      4209 9158 4193 9163
TIME...MOT...LOC 2129Z 270DEG 36KT 4238 9153 4211 9157 4181 9187 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gunkel

Area Forecast Discussion
National Weather Service Quad Cities IA IL
111 PM CDT Fri Apr 17 2026

.KEY MESSAGES...

- A strong storm system will bring the threat for severe storms
  once again to our area through this evening. SPC continues to
  highlight nearly our entire area in an Enhanced Risk (level 3
  of 5) for severe weather.

- A flood watch has been issued for much of the area through
  tonight for the potential of excessive rainfall with the final
  round of storms this afternoon/tonight. Soils across the area
  are saturated north of I-80 and very moist south of I-80.

- Much cooler conditions are expected this weekend. Unseasonably cool
  temperatures in the 30s Saturday night and Sunday night will
  bring the potential for frost/freeze, especially in our north.

- Area rivers are on the rise from the recent rounds of heavy
  rain, and heavy rainfall later today may push them even
  higher. Refer to the hydro section below for more details.

&&

.SHORT TERM /THROUGH TONIGHT/...
Issued at 1252 PM CDT Fri Apr 17 2026

Convective initiation has occurred across eastern Iowa. The
individual discrete cells will rapidly grow upscale into one or
more broken lines ahead of the cold front.

The atmosphere is becoming increasingly moist so the storms will
have plenty of fuel to produce heavy rainfall. The axis for the
heavier rain is somewhat narrow but rainfall amounts of an inch
in an hour will be possible with the stronger storms. Where
storms linger or repeat over the same areas, rainfall amounts
of 2 to 3 inches in a short time will be possible.

The pre-frontal line(s) of storms look to push east of the
Mississippi in the 6-8 PM time frame with the cold front
arriving during the mid to late evening hours. Very short range
models which had been pointing to a solid line of storms with
the front are now trending toward a scattered to broken line
with not much thunder associated with it. This 'may' be an
indication the convective allowing models are struggling with
the overall forcing from the upper level system.

The bulk of the rain looks to end across the area by midnight
but scattered rain showers along and immediately behind the
front will linger past midnight. However, the overall trend will
be decreasing areal coverage from west to east after midnight.

&&

.LONG TERM /SATURDAY THROUGH THURSDAY/...
Issued at 306 AM CDT Fri Apr 17 2026

Much colder air will continue to move into the area for the weekend
as a northwest flow pattern develops aloft. An area of high pressure
will build into the area Saturday night, which could set up our
first bout of frost/freeze conditions during the growing season.
There does appear to be a mid-level trough sweeping through the area
Saturday night, which could result in some cloud cover that could
keep our temperatures from falling too much, limiting our
frost/freeze potential. Despite this, the NBM probabilities of
freezing temperatures Saturday night are still around 50-80% along
and north of Interstate 80. Another night of frost/freeze conditions
are possible Sunday night as well, with similar exceedance
probabilities for freezing temperatures.

A quieter weather pattern will persist into early next week as a
broad upper ridge remains in place through the central US. A larger
trough begins to take shape across the western US into the latter
portion of the week. Therefore, some warming and a move toward some
smaller precipitation chances (20-40%) start to return to the area
by Thursday with a larger storm system potentially nearing the
region for Friday.

&&

.AVIATION /18Z TAFS THROUGH 18Z SATURDAY/...
Issued at 1225 PM CDT Fri Apr 17 2026

Convective initiation has begun over eastern Iowa with surface
winds gusting to 30 knots. Very short range models indicate
rapid upscale growth of TSRA through 00z/18. Discrete TSRA cells
will grow upscale into a line that congeals along the
Mississippi River by 00z/18. Based on forecast soundings,
probability is high for wind gusts over 50 knots with the
discrete cells and as the line forms. By 06z/18 the cold front
will have swept through the area with widespread MVFR conditions
and winds gusting up to 25 knots.

&&

.HYDROLOGY...
Issued at 1136 AM CDT Thu Apr 16 2026

Discussion...

Over the past five days, multiple rounds of heavy rain have
impacted eastern Iowa, northern Illinois and southern Wisconsin.
Rainfall amounts have run from 2 to 5 inches of rain; much of
this rain has been north of Highway 30.

Another round of heavy rain is forecast this afternoon and
evening with amounts running from a half inch to around 1.5
inches. With area soils running from moist to near saturation,
this additional rainfall will quickly run off into area
waterways resulting in new or increased river flooding along
with the potential for flash flooding.

Much of this rain is forecast to fall across southeast Iowa,
west central Illinois and into northern Illinois. River basins
impacted would be the Rock, lower Iowa, Skunk, Des Moines and La
Moine.

Rock River...

Based on overall river forecasts and another round of heavy rain
expected today, confidence is high (>80%) that the entire
length of the Rock River will reach flood stage by the weekend
and remain above flood stage into much of next week.

Mississippi River...

Routed flow coming down from the upper Mississippi, Wisconsin,
Rock, Iowa and other tributary rivers will cause general rises
along the length of the Mississippi. Based on the current routed
flow and another round of heavy rain, confidence is high (>80%)
that the Mississippi will reach flood stage from Muscatine down
through Keithsburg and at Gregory Landing. Gladstone and
Burlington are already above flood stage and will see additional
rises as the additional routed flow arrives over the weekend
and into next week.

Iowa Tributary Rivers...

Rivers in eastern Iowa are running high from the rounds of heavy
rain. Flood warnings continue for the lower Wapsipinicon River
near DeWitt and the Iowa River above Coralville near Marengo.
Based on routed flow, the lower Cedar River near Conesville will
go above flood stage over the weekend.

The North Skunk River near Sigourney is forecast to go above
flood stage tonight with general rises expected farther
downstream and on the Skunk River.

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...Flood Watch through late tonight for IAZ040>042-052>054-
     064>068-077-078-088-089-099.
IL...Flood Watch through late tonight for ILZ001-002-007-009-
     015>018-024>026-034-035.
MO...Flood Watch through late tonight for MOZ010.

&&

SHORT TERM...08
LONG TERM...Schultz
AVIATION...08
HYDROLOGY...08

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
323 AM CDT Fri Apr 17 2026

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-180900-
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-
323 AM CDT Fri Apr 17 2026

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

An Enhanced Risk (Level 3 of 5) for severe weather remains in
place across the area for this afternoon and evening. Damaging
winds and tornadoes, some possibly strong, are the primary
threats. Localized flash flooding is also possible.

Southerly winds will gust to around 40 mph this afternoon prior to
the severe thunderstorm development.

Area rivers are experiencing flooding. Please see the latest Flood
Statements and Flood Warnings for details.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Much colder air will bring the potential for frost and freeze
conditions to parts of the area Saturday night and Sunday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is likely for this afternoon and evening.

JTS

Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
309 PM CDT Fri Apr 17 2026

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

0255 PM     Hail             1 S Rice                42.32N 90.40W
04/17/2026  M1.75 Inch       Jo Daviess         IL   Trained Spotter

&&

Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
310 PM CDT Fri Apr 17 2026

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

0251 PM     Hail             1 SE Galena             42.41N 90.41W
04/17/2026  E1.25 Inch       Jo Daviess         IL   Public

            Report from mPING: Half Dollar (1.25 in.).

0252 PM     Hail             2 E Galena              42.41N 90.39W
04/17/2026  E1.50 Inch       Jo Daviess         IL   Public

            Report from mPING: Ping Pong Ball (1.50
            in.).

0257 PM     Hail             2 S Galena Territory    42.37N 90.33W
04/17/2026  E1.75 Inch       Jo Daviess         IL   Public

            Report from mPING: Golf Ball (1.75 in.).

0301 PM     Hail             1 E Rodden              42.34N 90.29W
04/17/2026  E1.75 Inch       Jo Daviess         IL   Public

            Report from mPING: Golf Ball (1.75 in.).

&&

Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
315 PM CDT Fri Apr 17 2026

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

0313 PM     Hail             Elizabeth               42.31N 90.22W
04/17/2026  M1.75 Inch       Jo Daviess         IL   Trained Spotter

&&

MJL

Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
326 PM CDT Fri Apr 17 2026

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

0326 PM     Tstm Wnd Gst     1 SSE Warren            42.48N 89.99W
04/17/2026  E70 MPH          Jo Daviess         IL   Trained Spotter

            Wind out of the west.

&&