Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 4, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 1, 2008, 9:41 PM CDT for Brown County, Redwood County, Minnesota. It was in force for 49 min. 1 report 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 1, 2008, 9:41 PM CDT (02:41 UTC)
- Expired
- May 1, 2008, 10:30 PM CDT
- In force
- 49 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Brown County, MN, Redwood County, MN
The radar
The Minneapolis radar (KMPX), 121 km from the middle of the area, began a volume at 02:45 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 1, 10:07 PM CDT | HAIL 0.75 | Morgan, MN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 2.7 hours before the alert went out and 118 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
- 1402 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 399 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 020241 SVRMPX MNC015-127-020330- /O.NEW.KMPX.SV.W.0004.080502T0241Z-080502T0330Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 941 PM CDT THU MAY 1 2008 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL REDWOOD COUNTY IN SOUTHWEST MINNESOTA... WESTERN BROWN COUNTY IN SOUTH CENTRAL MINNESOTA... * UNTIL 1030 PM CDT * AT 940 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 11 MILES SOUTH OF MORGAN...OR ABOUT 8 MILES SOUTHWEST OF SLEEPY EYE... AND MOVING NORTH AT 22 MPH. * LOCATIONS IMPACTED INCLUDE... MORGAN... SPRINGFIELD... HAIL UP TO THE SIZE OF QUARTERS HAS BEEN REPORTED NEAR THE CITY OF SPRINGFIELD WITH THIS STORM. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. REPORT ANY DAMAGE TO YOUR LOCAL EMERGENCY MANAGER...OR THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE. LAT...LON 4455 9504 4443 9473 4414 9480 4415 9503 TIME...MOT...LOC 0241Z 187DEG 19KT 4426 9488 $$ KAT
2 follow-up statements
000
WWUS53 KMPX 020304
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1003 PM CDT THU MAY 1 2008
MNC015-127-020330-
/O.CON.KMPX.SV.W.0004.000000T0000Z-080502T0330Z/
REDWOOD MN-BROWN MN-
1003 PM CDT THU MAY 1 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR NORTH CENTRAL BROWN AND EAST CENTRAL REDWOOD COUNTIES...
AT 1002 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS SEVERE
THUNDERSTORM WAS LOCATED NEAR EVAN...OR ABOUT 6 MILES SOUTHEAST OF
MORGAN...AND MOVING NORTH AT 25 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE MORGAN AND EVAN.
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.
REPORT ANY DAMAGE TO YOUR LOCAL EMERGENCY MANAGER...OR THE NEAREST
LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.
LAT...LON 4455 9504 4448 9486 4447 9485 4443 9472
4442 9474 4428 9477 4428 9502
TIME...MOT...LOC 0303Z 178DEG 22KT 4435 9487
$$
KAT000
WWUS53 KMPX 020325
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1024 PM CDT THU MAY 1 2008
MNC015-127-020334-
/O.EXP.KMPX.SV.W.0004.000000T0000Z-080502T0330Z/
REDWOOD MN-BROWN MN-
1024 PM CDT THU MAY 1 2008
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BROWN AND EAST
CENTRAL REDWOOD COUNTIES EXPIRES AT 1030 PM CDT...
AT 1007 CDT...HAIL UP TO THE SIZE OF PENNIES WAS REPORTED IN MORGAN
WITH THE STORM.
THE STORMS THAT PROMPTED THE WARNING HAD WEAKENED TO BELOW SEVERE
LEVELS...AND THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE.
HEAVY RAIN...LIGHTNING...AND HAIL TO THE SIZE OF DIMES WILL CONTINUE
THROUGH 1130 PM ACROSS LOCATIONS FROM NEAR REDWOOD FALLS TO
NORTHWEST OF NEW ULM.
LAT...LON 4455 9504 4448 9486 4447 9485 4443 9472
4442 9474 4428 9477 4428 9502
TIME...MOT...LOC 0324Z 178DEG 22KT 4448 9488
$$
KATThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 8:24 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 36 min |
| May 1, 9:08 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Watonwan | 37 min |
| May 1, 10:48 PM CDT | Severe Thunderstorm Warning | MPX | Renville, Sibley | 27 min |
| May 2, 3:51 AM CDT | Wind Advisory | MPX | Benton, Blue Earth, Brown, Chippewa, Douglas, Faribault and 20 more | 29 hr |
| May 2, 4:08 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn, Steele, Waseca | 52 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2008Every severe thunderstorm warning in 2008
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.