Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 76, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 31, 2008, 6:17 PM CDT for Chisago County, Isanti County, Minnesota. It was in force for 58 min. 4 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 31, 2008, 6:17 PM CDT (23:17 UTC)
- Expired
- May 31, 2008, 7:15 PM CDT
- In force
- 58 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Chisago County, MN, Isanti County, MN
The radar
The Minneapolis radar (KMPX), 81 km from the middle of the area, began a volume at 23:19 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 31, 6:24 PM CDT | HAIL 0.75 | 5 W Cambridge, MN | HIGHWAY 95 AND RUM RIVER AT WALBO. |
| May 31, 6:34 PM CDT | HAIL 0.75 | Isanti, MN | COUNTY ROAD 5 AND WHISKEY. |
| May 31, 6:35 PM CDT | HAIL 0.75 | 2 Wsw Isanti, MN | |
| May 31, 6:35 PM CDT | HAIL 0.75 | Isanti, MN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 31, 2:51 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.3 hours before the alert went out and 82 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
- 16 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 722 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 312318 SVRMPX MNC025-059-010015- /O.NEW.KMPX.SV.W.0076.080531T2317Z-080601T0015Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 617 PM CDT SAT MAY 31 2008 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... ISANTI COUNTY IN EAST CENTRAL MINNESOTA... CENTRAL CHISAGO COUNTY IN EAST CENTRAL MINNESOTA... * UNTIL 715 PM CDT * AT 615 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING PENNY SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 7 MILES WEST OF CAMBRIDGE...OR ABOUT 9 MILES NORTHWEST OF ISANTI...AND MOVING SOUTHEAST AT 29 MPH. * LOCATIONS IMPACTED INCLUDE... CAMBRIDGE... ISANTI... NORTH BRANCH... ATHENS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT SATURDAY EVENING FOR SOUTHERN MINNESOTA. LAT...LON 4543 9268 4542 9351 4557 9351 4572 9332 TIME...MOT...LOC 2317Z 310DEG 25KT 4559 9335 $$ MDB
1 follow-up statement
000 WWUS53 KMPX 312333 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 634 PM CDT SAT MAY 31 2008 MNC025-059-010015- /O.CON.KMPX.SV.W.0076.000000T0000Z-080601T0015Z/ ISANTI MN-CHISAGO MN- 634 PM CDT SAT MAY 31 2008 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR CENTRAL CHISAGO AND SOUTHERN ISANTI COUNTIES... AT 628 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 65 MPH. THESE SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE EXTENDING FROM 3 MILES EAST OF CAMBRIDGE TO 4 MILES WEST OF ISANTI...AND MOVING SOUTHEAST AT 29 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BODUM...ATHENS...NORTH BRANCH...ISANTI...CAMBRIDGE AND BRANCH. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. LAT...LON 4543 9268 4542 9351 4557 9351 4565 9315 TIME...MOT...LOC 2334Z 310DEG 25KT 4555 9312 4547 9329 $$ MDB
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 7:09 PM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Waseca | 36 min |
| May 31, 2:24 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur | 51 min |
| May 31, 3:08 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur, Rice, Steele, Waseca | 67 min |
| May 31, 4:15 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn, Steele, Waseca | 48 min |
| May 31, 4:15 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Sherburne | 60 min |
| May 31, 4:23 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 67 min |
| May 31, 4:43 PM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs, Morrison | 62 min |
| May 31, 5:01 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne, Wright | 59 min |
| May 31, 5:16 PM CDT | Tornado Warning | MPX | Sherburne, Wright | 44 min |
| May 31, 5:25 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin, Ramsey | 65 min |
| May 31, 5:28 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Mille Lacs, Morrison | 62 min |
| May 31, 5:38 PM CDT | Tornado Warning | MPX | Hennepin, Wright | 40 min |
| May 31, 6:26 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Ramsey, Scott | 50 min |
| May 31, 6:44 PM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs, Morrison | 46 min |
| May 31, 6:45 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Washington | 45 min |
| May 31, 6:55 PM CDT | Tornado Warning | MPX | Anoka, Chisago, Washington | 50 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.