Alert archive / Michigan / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 21, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at May 21, 2010, 3:24 PM EDT for Cass County, Saint Joseph County, Michigan. It was in force for 51 min. 3 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
- May 21, 2010, 3:24 PM EDT (19:24 UTC)
- Expired
- May 21, 2010, 4:15 PM EDT
- In force
- 51 min
- Issued by
- NWS Northern Indiana
- Area
- Storm-based polygon
Counties Cass County, MI, Saint Joseph County, MI
The radar
The Northern Indiana radar (KIWX), 69 km from the middle of the area, began a volume at 19:25 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 |
|---|---|---|---|
| May 21, 3:40 PM EDT | TSTM WND DMG | Three Rivers, MI | LARGE TREES DOWN AND REPORTED TO BE ACROSS THE STREETS. |
| May 21, 3:40 PM EDT | TSTM WND DMG | Three Rivers, MI | POWER LINES DOWN. REPORTED ON ELM STREET AND PORTAGE AVE. |
| May 21, 3:50 PM EDT | TSTM WND DMG | Three Rivers, MI | LARGE TREES DOWN AND REPORTED TO BE ACROSS THE STREETS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 7.4 hours before the alert went out and 208 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
- 2419 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- -47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
230 WUUS53 KIWX 211924 SVRIWX MIC027-149-212015- /O.NEW.KIWX.SV.W.0021.100521T1924Z-100521T2015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTHERN INDIANA 324 PM EDT FRI MAY 21 2010 THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN CASS COUNTY IN SOUTHWEST MICHIGAN... NORTHWESTERN ST. JOSEPH COUNTY IN SOUTHWEST MICHIGAN... * UNTIL 415 PM EDT * AT 321 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS SEVERE STORM WAS LOCATED 9 MILES SOUTHWEST OF THREE RIVERS...AND MOVING NORTHEAST AT 20 MPH. * LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE... THREE RIVERS... MARCELLUS... OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE COREY LAKE...CLEAR LAKE...HOWARDSVILLE...MOORE PARK...FISHERS LAKE AND FLOWERFIELD. THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS WITH TREES DOWN REPORTED IN THE TOWN OF ELKHART INDIANA. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS! TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA. LAT...LON 4208 8585 4207 8544 4181 8571 4186 8590 TIME...MOT...LOC 1923Z 209DEG 16KT 4189 8579 WIND...HAIL 60MPH IN $$
1 follow-up statement
558
WWUS53 KIWX 211938
SVSIWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
338 PM EDT FRI MAY 21 2010
MIC027-149-212015-
/O.CON.KIWX.SV.W.0021.000000T0000Z-100521T2015Z/
ST. JOSEPH MI-CASS MI-
338 PM EDT FRI MAY 21 2010
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR NORTHEASTERN CASS AND NORTHWESTERN ST. JOSEPH COUNTIES IN
SOUTHWEST MICHIGAN...
AT 333 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS SEVERE STORM WAS LOCATED NEAR THREE
RIVERS...AND MOVING NORTHEAST AT 25 MPH.
THIS SEVERE THUNDERSTORM WILL AFFECT THE FOLLOWING LOCATIONS...
MOORE PARK...FISHERS LAKE AND FLOWERFIELD.
THIS IS A DANGEROUS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH...
PREPARE IMMEDIATELY FOR DAMAGING WINDS IN EXCESS OF 60 MPH...ALONG
WITH DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO
A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM
WINDOWS.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN NORTHERN INDIANA.
LAT...LON 4192 8575 4193 8584 4208 8585 4207 8544
4185 8567
TIME...MOT...LOC 1936Z 216DEG 22KT 4197 8569
WIND...HAIL 60MPH IN
$$The office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 4:02 PM EDT | Severe Thunderstorm Warning | IWX | Branch, Saint Joseph | 43 min |
| May 21, 4:50 PM EDT | Flash Flood Warning | IWX | Branch, Hillsdale | 3 hr |
| May 21, 5:49 PM EDT | Areal Flood Advisory | IWX | Hillsdale | 3 hr |
| May 21, 6:08 PM EDT | Areal Flood Advisory | IWX | Hillsdale | 3 hr |
| May 21, 7:38 PM EDT | River Flood Warning | IWX | Branch, Saint Joseph | 64 hr |
Nearby
Severe Thunderstorm Warnings in Michigan, 2010Every severe thunderstorm warning in 2010
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.