Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 101, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 11, 2026, 7:12 PM EDT for 6 counties in Pennsylvania. It was in force for 48 min. 13 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 11, 2026, 7:12 PM EDT (23:12 UTC)
- Expired
- Jun 11, 2026, 8:00 PM EDT
- In force
- 48 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Adams County, PA, Cumberland County, PA, Dauphin County, PA, Franklin County, PA, Perry County, PA, York County, PA
The radar
The State College radar (KCCX), 117 km from the middle of the area, began a volume at 23:16 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 11, 7:13 PM EDT | TSTM WND DMG | 2 Ese Carlisle Springs, PA | Wires down on Harrisburg Pike. |
| Jun 11, 7:18 PM EDT | TSTM WND DMG | 1 Se Rouzerville, PA | Wires down on Villa View Dr. |
| Jun 11, 7:23 PM EDT | TSTM WND DMG | 2 E Dillsburg, PA | Tree down on Chestnut Grove Rd. |
| Jun 11, 7:29 PM EDT | TSTM WND DMG | 2 Se New Cumberland, PA | Tree down into wires on Old Depot Rd. |
| Jun 11, 7:30 PM EDT | TSTM WND DMG | 1 N Siddonsburg, PA | Tree down across N Lewisberry Rd. |
| Jun 11, 7:31 PM EDT | TSTM WND DMG | 2 Se Lewisberry, PA | Tree down into power lines on Fishing Creek Rd. |
| Jun 11, 7:31 PM EDT | TSTM WND DMG | 3 S New Cumberland, PA | Tree down into power lines. |
| Jun 11, 7:33 PM EDT | TSTM WND DMG | 2 S Lower Allen, PA | Trees down on Bradley Cir. |
| Jun 11, 7:36 PM EDT | TSTM WND DMG | 2 Se Lewisberry, PA | Tree down on 1350 Pleasant Dr. |
| Jun 11, 7:42 PM EDT | TSTM WND DMG | 3 S Lower Allen, PA | Tree down on roadway between intersection of Old Forge Rd and Shauffnertown Rd. |
| Jun 11, 7:44 PM EDT | TSTM WND DMG | 2 Ssw Valley Green, PA | Tree down on roadway. |
| Jun 11, 7:48 PM EDT | TSTM WND DMG | 3 Ene Siddonsburg, PA | Tree down on roadway. |
| Jun 11, 7:49 PM EDT | TSTM WND DMG | 2 E Siddonsburg, PA | Multiple trees down on wires in Fairview and Monaghan Townships. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 13 storm reports to this severe thunderstorm warning; the first came 1 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 11, 4:12 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 11.2 hours before the alert went out and 123 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
- 1214 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 1130 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 149 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
927
WUUS51 KCTP 112312
SVRCTP
PAC001-041-043-055-099-133-120000-
/O.NEW.KCTP.SV.W.0101.260611T2312Z-260612T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
712 PM EDT Thu Jun 11 2026
The National Weather Service in State College PA has issued a
* Severe Thunderstorm Warning for...
Adams County in south central Pennsylvania...
Cumberland County in south central Pennsylvania...
Southern Dauphin County in south central Pennsylvania...
Southeastern Franklin County in south central Pennsylvania...
East central Perry County in south central Pennsylvania...
Northwestern York County in south central Pennsylvania...
* Until 800 PM EDT.
* At 712 PM EDT, severe thunderstorms were located along a line
extending from Wertzville to Mount Holly Springs to Shippensburg to
Greencastle, moving east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Harrisburg, Chambersburg, Carlisle, Lower Allen, Hershey, Colonial
Park, Waynesboro, Progress, Mechanicsburg, Middletown, Camp Hill,
and Gettysburg.
This includes the following Interstates...
The Pennsylvania Turnpike from mile markers 219 to 256.
Interstate 81 from mile markers 0 to 81.
Interstate 83 from mile markers 32 to 50.
Interstate 283 from mile markers 0 to 2.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Stay inside a well built structure and keep away from windows.
Continuous cloud to ground lightning is occurring with these severe
thunderstorms. Move indoors immediately. Lightning is one of nature's
leading killers. Remember, if you can hear thunder, you are close
enough to be struck by lightning.
&&
LAT...LON 3972 7781 4004 7764 4011 7742 4034 7714
4040 7665 4023 7658 4014 7678 3972 7731
TIME...MOT...LOC 2312Z 249DEG 42KT 4030 7704 4011 7717 3998 7749 3975
7769
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BeatyWhat 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 State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 11, 7:06 PM EDT, 6 minutes earlier. Its key messages:
- 1) Increasing heat and humidity will bring increased risk for heat-related illnesses Thursday, and especially on Friday. 2) Shower and thunderstorm chances continue through the rest of today and again Friday. Some severe thunderstorms will occur and produce damaging wind gusts. 3) A refreshing decrease in humidity is a good bet this weekend with high pressure moving in after a cold front.
Area forecast discussion, Jun 11, 7:06 PM EDT, 6 minutes before
Area Forecast Discussion
National Weather Service State College PA
706 PM EDT Thu Jun 11 2026
.WHAT HAS CHANGED...
Heat Advisory remains in effect across Lancaster, York, Adams,
Cumberland, Dauphin, and Lebanon Counties for the rest of today
and Friday.
&&
.KEY MESSAGES...
1) Increasing heat and humidity will bring increased risk for
heat-related illnesses Thursday, and especially on Friday.
2) Shower and thunderstorm chances continue through
the rest of today and again Friday. Some severe thunderstorms
will occur and produce damaging wind gusts.
3) A refreshing decrease in humidity is a good bet this weekend
with high pressure moving in after a cold front.
&&
.DISCUSSION...
KEY MESSAGE 1: Increasing heat and humidity will bring
increased risk for heat-related illnesses Thursday, and
especially on Friday.
With an upper level ridge in place advecting in a very warm to
hot airmass, heat and humidity will continue to build today and
Friday, particularly for the eastern two thirds of the forecast
area.
There is quite a bit of uncertainty remaining in how high the
temperatures and heat index values get due to variable amounts
of alto cu from weak warm advection aloft and remnant cloud
cover from overnight/mid morning convection. Increasing chc
for late afternoon and evening SHRA/TSRA will also add to the
uncertainty of max temps.
The continued thinking is that the NBM is a bit too high with
both temperatures and dew points both days, especially given the
recent high bias. Therefore, similar to previous forecast
cycles, went a few degrees cooler than the NBM.
All of this being said, the forecast heat index for Thursday
and Friday still get to the upper 90s and low 100s for the
southeastern portions of the area on Thursday, particularly the
Harrisburg/Lancaster/York areas. Heat Advisories have been
issued for Lancaster, York, Adams, Cumberland, Dauphin, and
Lebanon Counties for Thursday and Friday where HREF
probabilities of heat index > 100F are highest.
---------------------------------------------------
KEY MESSAGE 2: Shower and thunderstorm probabilities will ramp
up across the NW 1/3 to 1/2 of the CWA through 00Z Friday, with
the target time across the Middle and Lower Susq Valley
occurring between 22Z Friday and 01Z Sat. Another few round of
TSRA are expected Friday. Some severe thunderstorms will occur
and produce damaging wind gusts.
Underneath a broad ridge of high pressure, a couple shortwaves
will drift across Pennsylvania over the next few days.
Sufficient instability in the presence of warm & moist air along
with weak but sufficient shear will lead to multiple rounds of
showers and thunderstorms today and Friday.
The first feature at the surface and aloft that will help to
support and increase the coverage of TSRA will come in the
form of a compact shortwave trough centered over Central Lake
Erie with its trough axis extending south across Western PA and
Eastern Ohio. Movement of this features and its many showers and
TSRA is to the ENE at just over 30KT.
Multiple storm clusters/line segments have there axis nearly
perpendicular with the moderate, 20-30 kt 0-3KM bulk shear
vector, so training and very heavy rain is not likely at this
point.
Meso-B lift and 1-2 deg C of cooling within the mid levels
(~700 mb), along with westerly 0-3 km bulk shear increasing to
around 30 KT will help to increase instability and organized
updrafts in TSRA that should push through much of our CWA in 2-3
quasi-linear features, with the main severe wx threat coming in
the form of localized wind damage associated with mini
bows/broken-S signatures.
If these multicell clusters can develop large enough cold
pools, an elevated threat of damaging wind gusts may materialize
in the form of an MCS. Such a scenario cloud produce a swath of
more significant wind damage (most likely across the Mid/lower
Susq Valley late this afternoon/evening and potentially in any
part of the CWA on Friday. Slight Risks with 30% wind
probabilities have been issued for both today and Friday across
southeast PA.
A cold frontal passage will occur on Friday. An approaching upper
trough and high available moisture suggest severe thunderstorms
are possible. But, the small ridge that pumps up overhead late
Thu could be a setback for how widespread the threat will be.
The biggest question is timing/speed of the cold front. A faster
progression could mean the cold front clears our area before
peak heating (lower threat of damaging winds), while a later
arrival could spell more concern for severe weather.
It is worth noting that recent hi-res convective
allowing models actually bring most of the convection to NW PA
today and fail to initiate many storms at all in our forecast
area on Friday. Possible flies in the ointment to monitor.
The repeated shots of scattered to numerous SHRA/TSRA over the
next 2 days is likely to yield lower FFG thresholds and some
flash flooding would become possible, too. But, it has been very
dry recently, and everything is growing and thirsty, ready to
soak up as much as it can. As always, too much of a good thing
can be bad. We'll keep an eye on the soil saturation and other
factors that could lead to flooding.
---------------------------------------------------
KEY MESSAGE 3: A refreshing decrease in humidity is a good bet
this weekend with high pressure moving in after a cold front.
Following the passage of the aforementioned cold front, much
more comfortable conditions will arrive on Saturday and Sunday.
Temperatures will remain warm (highs in the 80s and even some
lower 90s on Sunday), but dew points will be much lower (in the
50s and lower 60s, instead of the 70s). Then, cooler
temperatures arrive by Monday with highs in the 70s to lower
80s. This will be due to another cold front passage on Sunday,
which will bring a renewed chance for showers and
thunderstorms.
&&
.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
Band of showers and storms moving along at a decent clip.
Main area to see more showers and storms until mid to late
evening will be MDT and LNS.
Lower clouds and fog will likely form overnight, mainly
in areas that had rain today.
Expect winds to pick up Friday morning, with conditions
expected to become VFR again by late morning or early aft.
Have some VCSH in most of the TAFS later Friday, NAM model
not showing much potential with showers and storms. Did not
have VCSh in BFD, as even less chc there. Later shifts can
adjust more on Friday as needed.
A break on Saturday, but a stronger cold front on Sunday
will bring the potential for more strong storms on Sunday.
Outlook...
Saturday...Mainly VFR.
Sunday...VFR favored early, with restrictions possible as FROPA
brings chance of -SHRA/-TSRA later in the day.
Monday...Additional scattered -SHRA and associated restrictions
possible.
Tuesday...Still a slight chance of showers and storms.
&&
.CTP WATCHES/WARNINGS/ADVISORIES...
Heat Advisory until 8 PM EDT Friday for PAZ057-059-063>066.
&&
WHAT HAS CHANGED...Lambert/Banghoff/Colbert
KEY MESSAGES...Lambert/Banghoff/Colbert
DISCUSSION...Lambert/Banghoff/Colbert
AVIATION...MartinHazardous weather outlook, Jun 11, 6:09 PM EDT, 1 hour 3 minutes before
Hazardous Weather Outlook National Weather Service State College PA 609 PM EDT Thu Jun 11 2026 PAZ057-059-063>066-122215- Dauphin-Lebanon-Cumberland-Adams-York-Lancaster- 609 PM EDT Thu Jun 11 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT FRIDAY... ...SEVERE THUNDERSTORM WATCH 315 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Heat Advisory. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Heat Advisory. Severe thunderstorms with damaging winds are possible again Friday afternoon and evening. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ019-026>028-035-036-045-046-049>053-056-058-122215- Southern Centre-Huntingdon-Mifflin-Juniata-Fulton-Franklin- Southern Clinton-Southern Lycoming-Union-Snyder-Montour- Northumberland-Columbia-Perry-Schuylkill- 609 PM EDT Thu Jun 11 2026 ...SEVERE THUNDERSTORM WATCH 315 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Severe Thunderstorm Watch. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Severe thunderstorms with damaging winds 60 mph or greater are possible again Friday afternoon and evening. Heat and humidity may result in an increased risk for heat-related illness Friday afternoon. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ012-018-025-034-037-041-042-122215- Northern Clinton-Northern Centre-Blair-Bedford-Tioga- Northern Lycoming-Sullivan- 609 PM EDT Thu Jun 11 2026 ...SEVERE THUNDERSTORM WATCH 315 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Severe thunderstorms with damaging winds 60 mph or greater are possible again Friday afternoon and evening. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ006-024-033-122215- Potter-Cambria-Somerset- 609 PM EDT Thu Jun 11 2026 ...SEVERE THUNDERSTORM WATCH 312 IN EFFECT UNTIL 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov/StateCollege on the internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Severe thunderstorms with damaging winds 60 mph or greater are possible again Friday afternoon and evening. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. PAZ004-005-010-011-017-122215- Warren-McKean-Elk-Cameron-Clearfield- 609 PM EDT Thu Jun 11 2026 This Hazardous Weather Outlook is for central Pennsylvania. .DAY ONE...Tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Severe thunderstorms with damaging winds 60 mph or greater are possible again Friday afternoon and evening. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report significant hazardous weather. Colbert
In the hours before
Local storm report, Jun 11, 6:58 PM EDT, 14 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
658 PM EDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0657 PM Tstm Wnd Dmg 3 ESE Landisburg 40.33N 77.25W
06/11/2026 Perry PA 911 Call Center
Tree on wires blocking roadway near Warm
Springs Lodge on Warm Springs Rd.
&&
MJTLocal storm report, Jun 11, 6:59 PM EDT, 13 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
659 PM EDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0623 PM Tstm Wnd Dmg 3 NNW Lock Haven 41.18N 77.49W
06/11/2026 Clinton PA Public
Tree down on Farrandsville Road and Railroad
Bridge Lane.
&&
JBLLocal storm report, Jun 11, 7:03 PM EDT, 9 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
703 PM EDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0602 PM Tstm Wnd Dmg 3 NE State College 40.82N 77.82W
06/11/2026 Centre PA Public
Photo submitted of tree damage on Limerock
Terrace.
&&
JBLLocal storm report, Jun 11, 7:05 PM EDT, 7 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
705 PM EDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 PM Tstm Wnd Dmg 1 NE Carlisle 40.21N 77.19W
06/11/2026 Cumberland PA 911 Call Center
Tree down on Spring Rd.
&&
MJTLocal storm report, Jun 11, 7:07 PM EDT, 5 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
707 PM EDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0435 PM Tstm Wnd Dmg 3 WSW Driftwood 41.33N 78.19W
06/11/2026 Cameron PA 911 Call Center
Tree down blocking roadway on Mix Run Road.
&&
JBLLocal storm report, Jun 11, 7:08 PM EDT, 4 minutes before
Preliminary Local Storm Report
National Weather Service State College PA
708 PM EDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 PM Tstm Wnd Dmg Mercersburg 39.83N 77.90W
06/11/2026 Franklin PA 911 Call Center
Wires down on N Fayette St.
&&
MJTThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 2:18 AM EDT | Special Weather Statement | CTP | Huntingdon | 27 min |
| Jun 11, 7:43 AM EDT | Special Weather Statement | CTP | Clearfield | 62 min |
| Jun 11, 2:40 PM EDT | Special Weather Statement | CTP | Warren | 20 min |
| Jun 11, 4:15 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Somerset | 45 min |
| Jun 11, 4:24 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Cameron, Clearfield, Elk | 51 min |
| Jun 11, 4:57 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Cambria, Somerset | 48 min |
| Jun 11, 5:13 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clearfield, Clinton, Elk, Potter | 62 min |
| Jun 11, 5:22 PM EDT | Severe Thunderstorm Warning | CTP | Bedford, Blair, Centre, Fulton, Huntingdon, Mifflin and 1 more | 53 min |
| Jun 11, 5:31 PM EDT | Flash Flood Warning | CTP | Cameron, Clearfield, Elk | 2 hr |
| Jun 11, 5:42 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Tioga | 48 min |
| Jun 11, 5:50 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Centre, Clearfield, Clinton, Lycoming, Potter and 1 more | 55 min |
| Jun 11, 6:13 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin, Fulton, Huntingdon, Perry | 62 min |
| Jun 11, 6:14 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 46 min |
| Jun 11, 6:15 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Juniata, Mifflin, Perry, Snyder and 1 more | 60 min |
| Jun 11, 6:41 PM EDT | Special Weather Statement | CTP | Sullivan | 34 min |
| Jun 11, 6:41 PM EDT | Special Weather Statement | CTP | Lycoming | 49 min |
| Jun 11, 6:57 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan | 48 min |
| Jun 11, 7:06 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Lycoming, Montour, Northumberland, Perry and 2 more | 39 min |
| Jun 11, 7:31 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Dauphin, Lebanon, Lycoming, Montour, Northumberland and 2 more | 59 min |
| Jun 11, 7:45 PM EDT | Special Weather Statement | CTP | York | 45 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2026Every severe thunderstorm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.