Alert archive / Iowa / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 20, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Mar 4, 2024, 3:52 PM CST for Clinton County, Scott County, Iowa; Rock Island County, Whiteside County, Illinois. It was in force for 38 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
- Mar 4, 2024, 3:52 PM CST (21:52 UTC)
- Expired
- Mar 4, 2024, 4:30 PM CST
- In force
- 38 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Clinton County, IA, Scott County, IA, Rock Island County, IL, Whiteside County, IL
The radar
The Quad Cities radar (KDVN), 17 km from the middle of the area, began a volume at 21:52 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 nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 9.9 hours before the alert went out and 11 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1669 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Mar 4, 2:56 PM CST, 56 minutes earlier. Its key messages:
- Widespread rain showers are forecast to develop late this afternoon into this evening along and behind a strong cold front with scattered thunderstorms to the east of the front. A few of these storms may become severe.
- There is a marginal or level 1 out of 5 risk of severe weather this afternoon into the early evening.
- A strong cold front will move across the region this evening with temperatures dropping from 75 degrees ahead of the front to 45 degrees behind the front.
- Rain chances will return Thursday into Friday.
Area forecast discussion, Mar 4, 2:56 PM CST, 56 minutes before
Area Forecast Discussion National Weather Service Quad Cities IA IL 256 PM CST Mon Mar 4 2024 .KEY MESSAGES... - Widespread rain showers are forecast to develop late this afternoon into this evening along and behind a strong cold front with scattered thunderstorms to the east of the front. A few of these storms may become severe. - There is a marginal or level 1 out of 5 risk of severe weather this afternoon into the early evening. - A strong cold front will move across the region this evening with temperatures dropping from 75 degrees ahead of the front to 45 degrees behind the front. - Rain chances will return Thursday into Friday. && .SHORT TERM /THROUGH TUESDAY/... Issued at 208 PM CST Mon Mar 4 2024 A stalled frontal boundary stretches from near Freeport to Iowa City to Ottumwa to KLWD. North of the boundary winds were northerly with winds out of the south creating convergence along the front. Dewpoints along and south of the boundary have surged into the upper 50s to lower 60s across the area with temperatures generally in the upper 60s to the mid 70s farther to the south. Satellite shows continued towering cumulus growth near the frontal boundary. Scattered thunderstorms have developed east of the frontal boundary with scattered showers behind it. Expect scattered showers to become widespread this evening as the low level jet increases with upglide over the front. A few thunderstorms along and west of the boundary may become severe with large hail the main threat but as the front moves away and the cooler air moves the severe threat will come to an end. 0 to 6 km shear is parallel to the front so storms will not move off of the boundary. In the warm sector southeast of the front, expect scattered thunderstorms into the early evening. A storm or two may become severe with large hail the main threat. Storms near the boundary will have an increase helicity to work with causing them to spin resulting in a low tornado threat through early this evening. Rain will come to an end from northwest to southeast tonight with the cold front exiting the area by midnight and the better lift shifting to the east. Clouds are forecast to linger into the morning but low temperatures will be noticeably cooler with low temperatures ranging from the lower 30s in Buchanan County to the mid 40s in northwest Illinois south of I-80. && .LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/... Issued at 208 PM CST Mon Mar 4 2024 Wednesday: With the passage of the cold front cooler weather is expected but still above normal for early March. We will be between systems so dry for a couple of days. Highs will be in the lower to mid 50s and lows in the 30s. Thursday through Friday: A rather large/deep trough moves into the central United States. Seems that the ECMWF has come around to the GFS depicting a wetter/slower solution with widespread rain expected, especially Thursday night and Friday. Rainfall amounts look to be generally in the 1/2 to 1 inch range at most locations. This pretty much matches the Day 4-5 WPC QPF amounts. NBM has highs in the mid to upper 50s Thursday and upper 40s to mid 50s on Friday. This weekend: New data coming in shows the storm system pushing well off to our east so we should be dry again. There is a shot of cooler air in the wake of this system with h8 temps of -6C. Highs should be in the mid 40s to lower 50s with lows bottoming out in the 20s. && .AVIATION /18Z TAFS THROUGH 18Z TUESDAY/... Issued at 1140 AM CST Mon Mar 4 2024 A stalled frontal boundary will surge southeastward across the area after 00 UTC Tuesday. Scattered thunderstorms may develop ahead of the front after 21 UTC impacting KBRL and KMLI. MVFR ceilings and visibility are possible with any storms that develop ahead of the front. As widespread precipitation develops late this afternoon into this evening, MVFR ceilings and visibility are forecast. Precipitation will end from northwest to southeast after 03 UTC with MVFR to possibly IFR ceilings continuing through the remainder of the period. && .CLIMATE... Issued at 300 AM CST Mon Mar 4 2024 Record High Temperatures: March 4: KBRL: 72/1992 KMLI: 71/1992 && .DVN WATCHES/WARNINGS/ADVISORIES... IA...None. IL...None. MO...None. && SHORT TERM...Cousins LONG TERM...Uttech AVIATION...Cousins CLIMATE...Speck/Uttech
Hazardous weather outlook, Mar 4, 3:13 PM CST, 39 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 313 PM CST Mon Mar 4 2024 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-052115- 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- 313 PM CST Mon Mar 4 2024 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...THIS AFTERNOON AND TONIGHT Scattered thunderstorms will continue into this evening ahead of a strong cold front. The Storm Prediction Center has a Marginal risk for severe storms (level 1 of 5) across much of the outlook area. The main risks are hail up to quarter size and strong gusty winds of 50 to 60 mph. An isolated tornado or two is possible if a discrete storm can develop. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation will be needed into the early evening hours in far southeast Iowa, northwest Illinois and far northeast Missouri. GENERAL STORM MOTION OF THE DAY: Towards the northeast at around 40 MPH DC
In the hours before
Local storm report, Mar 4, 3:16 PM CST, 36 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
316 PM CST Mon Mar 4 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0300 PM Hail 4 NE Morristown 41.44N 90.24W
03/04/2024 M1.00 inch Henry IL Storm Chaser
Extensive quarter sized hail had virtually
stopped traffic along I-80 west of Geneseo.
estimated around MM15 around 3 pm. Time
based on radar.
&&Local storm report, Mar 4, 3:18 PM CST, 34 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
318 PM CST Mon Mar 4 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0253 PM Hail 2 WSW Riverdale 41.53N 90.51W
03/04/2024 E1.00 inch Scott IA Public
Nickel to quarter sized hail.
&&Local storm report, Mar 4, 3:19 PM CST, 33 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
319 PM CST Mon Mar 4 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0243 PM Hail Moline 41.49N 90.48W
03/04/2024 E0.70 inch Rock Island IL Public
Delayed report via social media.
&&Local storm report, Mar 4, 3:20 PM CST, 32 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
320 PM CST Mon Mar 4 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0250 PM Hail 2 W Bettendorf 41.56N 90.51W
03/04/2024 M1.00 inch Scott IA Trained Spotter
Via social media picture.
&&Local storm report, Mar 4, 3:36 PM CST, 16 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
336 PM CST Mon Mar 4 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0336 PM Hail 3 ENE Charlie Heath Mem 40.59N 91.84W
03/04/2024 M0.88 inch Clark MO Trained Spotter
Occurring right now.
&&Local storm report, Mar 4, 3:40 PM CST, 12 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
340 PM CST Mon Mar 4 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0339 PM Hail 3 ENE Charlie Heath Mem 40.59N 91.84W
03/04/2024 M1.00 inch Clark MO Trained Spotter
Occurring right now; intermixed with peas
and dimes.
&&The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 8:01 AM CST | Special Weather Statement | DVN | Buchanan | 29 min |
| Mar 4, 10:10 AM CST | Special Weather Statement | DVN | Washington | 35 min |
| Mar 4, 10:49 AM CST | Special Weather Statement | DVN | Muscatine | 26 min |
| Mar 4, 11:12 AM CST | Special Weather Statement | DVN | Cedar | 33 min |
| Mar 4, 12:38 PM CST | Special Weather Statement | DVN | Clinton | 37 min |
| Mar 4, 1:11 PM CST | Severe Thunderstorm Warning | DVN | Jackson | 34 min |
| Mar 4, 1:48 PM CST | Special Weather Statement | DVN | Clinton | 42 min |
| Mar 4, 1:54 PM CST | Severe Thunderstorm Warning | DVN | Clinton, Jackson, Scott | 51 min |
| Mar 4, 2:43 PM CST | Severe Thunderstorm Warning | DVN | Clinton, Scott | 47 min |
| Mar 4, 3:11 PM CST | Special Weather Statement | DVN | Van Buren | 49 min |
| Mar 4, 3:19 PM CST | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Lee, Van Buren | 41 min |
| Mar 4, 3:28 PM CST | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 47 min |
| Mar 4, 3:39 PM CST | Severe Thunderstorm Warning | DVN | Scott | 51 min |
| Mar 4, 3:52 PM CST | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Louisa | 38 min |
| Mar 4, 4:17 PM CST | Severe Thunderstorm Warning | DVN | Scott | 43 min |
| Mar 4, 4:24 PM CST | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 35 min |
| Mar 4, 5:11 PM CST | Severe Thunderstorm Warning | DVN | Van Buren | 49 min |
| Mar 4, 5:16 PM CST | Tornado Warning | DVN | Van Buren | 33 min |
| Mar 4, 5:22 PM CST | Severe Thunderstorm Warning | DVN | Des Moines | 38 min |
| Mar 4, 5:48 PM CST | Severe Thunderstorm Warning | DVN | Lee | 42 min |
| Mar 4, 1:45 PM CST | Severe Thunderstorm Warning | DVN | Carroll, Jo Daviess, Stephenson | 45 min |
| Mar 4, 2:00 PM CST | Special Weather Statement | DVN | Mercer, Rock Island | 45 min |
| Mar 4, 3:03 PM CST | Severe Thunderstorm Warning | DVN | Carroll, Stephenson | 42 min |
| Mar 4, 3:13 PM CST | Severe Thunderstorm Warning | DVN | Henry, Rock Island, Whiteside | 47 min |
| Mar 4, 4:19 PM CST | Tornado Warning | DVN | Henry, Rock Island, Whiteside | 41 min |
| Mar 4, 4:28 PM CST | Tornado Warning | DVN | Carroll, Whiteside | 29 min |
| Mar 4, 3:39 PM CST | Severe Thunderstorm Warning | DVN | Clark, Scotland | 51 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2024Severe Thunderstorm Warnings in Illinois, 2024Every severe thunderstorm warning in 2024
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.