Continued dryness and hot weather persisted across central Iowa with severe to even extreme drought expanding in several locations throughout the forecast area.
Every event with a place to put it; 9 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 DMX wrote it up.
Continued dryness and hot weather persisted across central Iowa with severe to even extreme drought expanding in several locations throughout the forecast area.
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 Des Moines, IA wrote its last area forecast discussion before the first event at Jun 13, 4:48 AM CST, 2 hours 12 minutes earlier.
Area Forecast Discussion National Weather Service Des Moines IA 548 AM CDT Tue Jun 13 2023 ...Updated for the 12z Aviation Discussion... .DISCUSSION.../Today through Monday/ Issued at 248 AM CDT Tue Jun 13 2023 Key Messages: - Increasing temperatures and dewpoints through Thursday - Storm chances return late this week and early this weekend Details: Examination of GOES-East imagery shows an upper level low over the central Great Lakes with an elongated and positively tilted longwave trough over the western CONUS and off the West Coast. Within the western longwave trough, there is plenty of energy with the closest shortwave piece over Colorado this morning. There is also an active baroclinic zone over the Southeast back into the southern Plains/Texas with multiple thunderstorm complexes generally in decay at this hour. However, Iowa is more under the influence of the Great Lakes low. The pressure gradient of this once again will create breezy winds and went slightly above initial National Blend of Models guidance to account for a breezier day with the winds from the northwest. Also aiding in the winds will be the deep boundary layer mixing with NAM/GFS/RAP/HRRR soundings indicating a depth at least 7000 feet, which is similar to the 00z KOAX and KDVN RAOB's depths. While the boundary layer mixing will result in drying within the depth, soundings and the 00z HREF low cloud indicate another day of diurnal cumulus development over central Iowa with eastern Iowa also having clouds from the Great Lakes low. While there will be some cloud development, have kept the forecast dry with the deep dry subcloud layer despite the more convective prone FV3 and WRF- ARW indicating low chances of storms late this afternoon or evening rotating into eastern portions of the forecast area. As for temperatures today, they will rise into the 80s and be about 5 degrees higher than yesterday with dewpoints also increasing somewhere between 5 and 10 degrees as well. The upper low over the Great Lakes will slowly slide eastward through the week allowing for rising heights as mid-level ridging builds into the region. HRRR and RAP modeling indicate the next wave of high level smoke from Canadian wildfires moving over the state later tonight into Wednesday and have increased sky cover to account for this. At this time, near surface smoke concentrations look minimal, but as always the Iowa Department of Natural Resources will be monitoring air quality for any concerns. Temperatures and dewpoints will continue to rise a few degrees each day compared to the previous day Wednesday and Thursday. Highs on Thursday will be well into the 80s to around 90 degrees, though cooler over northeast Iowa due to a cold front accompanying another shortwave trough, which will drop into the central and eastern Great Lakes Thursday into Friday. Meanwhile, a shortwave trough will eject from the western CONUS trough and move toward the area late this week and result in our next chance of storms across the state. Questions remain on the extent of moisture return as well as on the timing, storm coverage, and any resultant severe weather chances, if any. While mentioned earlier, the baroclinic zone over the South will limit moisture return back toward Iowa with no direct Gulf of Mexico connection. As for timing, the 00z ECMWF is slower than the GFS with the CMC faster than both of these models. 12/12z cluster analysis reveals a model ensemble diverse cluster, which would favor chances increasing later Friday afternoon into Friday night. Storm chances (emphasis chances) would likely continue across the state for another 24 to 36 hours as the shortwave trough tracks across the region. Severe weather chances continue to look minimal during the Friday and Saturday period with the instability sufficient, but deep layer shear weak. Corroborating this idea are the latest (often yesterday's/the 12th's) SPC days 4-8 outlook, Colorado State's machine learning random forest outlook, and CIPS Experimental Analog-Based Severe Probability Guidance showing no areas or any risk largely south or west of the forecast area. && .AVIATION.../For the 12Z TAFS through 12Z Wednesday morning/ Issued at 548 AM CDT Tue Jun 13 2023 VFR conditions will prevail through the period at all terminals. Winds from the northwest will turn breezy later this morning before diminishing this evening. Similarly, cumulus clouds are expected to develop later this morning around or a bit above FL070 and dissipate around or shortly after sunset. Cannot rule out a shower at MCW or ALO this afternoon, but quite uncertain if this will occur and if it does no confidence at this time what location it would impact. Additional mid and high level cloud cover associated with low pressure departing the Great Lakes is likely through the day, particularly over eastern Iowa. Finally, high level smoke may return late tonight or during the day Wednesday, but will address with FEW250 if needed in future issuances. && .DMX WATCHES/WARNINGS/ADVISORIES... NONE. && DISCUSSION...Ansorge AVIATION...Ansorge
Hazardous Weather Outlook National Weather Service Des Moines IA 358 AM CDT Tue Jun 13 2023 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-140900- Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun- Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene- Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper- Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union- Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne- Appanoose-Davis- 358 AM CDT Tue Jun 13 2023 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Thunderstorm chances return Friday with periodic chances persisting into the weekend. The overall severe weather threat remains low at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The national radar mosaic for the moment the first event began.
9 drought. Local standard time, as filed.
Severe drought expanded into Butler County by the middle of June as dry conditions and very warm temperatures persisted. These conditions remained through the end of the month.
Severe drought expanded into Grundy County by the middle of June as dry conditions and very warm temperatures persisted. These conditions remained through the end of the month.
Severe to extreme drought expanded into Wapello County by the middle of June as dry conditions and very warm temperatures persisted. These conditions remained through the end of the month.
Severe to extreme drought expanded into Monroe County by the middle of June as dry conditions and very warm temperatures persisted. These conditions remained through the end of the month.
Severe to extreme drought expanded into Wayne County by the middle of June as dry conditions and very warm temperatures persisted. These conditions remained through the end of the month.
Severe drought expanded into Lucas County by the middle of June as dry conditions and very warm temperatures persisted. These conditions remained through the end of the month.
Severe drought expanded into Sac County by the middle of June as dry conditions and very warm temperatures persisted. These conditions remained through the end of the month.
Severe drought expanded into Crawford County by the middle of June as dry conditions and very warm temperatures persisted. These conditions remained through the end of the month.
Severe drought expanded into Carroll County by the middle of June as dry conditions and very warm temperatures persisted. These conditions remained through the end of the month.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2023Every state in 2023This day in weather historyWarnings in Iowa, June 2023
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: 1108384, 1108387, 1108388, 1108390, 1108392, 1108394, 1108396, 1108397, 1108398.