Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 327, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 27, 2007, 2:40 PM CDT for Douglas County, Minnesota. It was in force for 48 min. 2 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
- Aug 27, 2007, 2:40 PM CDT (19:40 UTC)
- Expired
- Aug 27, 2007, 3:28 PM CDT
- In force
- 48 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Douglas County, MN
The radar
The Minneapolis radar (KMPX), 199 km from the middle of the area, began a volume at 19:42 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 |
|---|---|---|---|
| Aug 27, 2:59 PM CDT | HAIL 0.75 | 2 S Millerville, MN | |
| Aug 27, 2:59 PM CDT | HAIL 0.88 | 1 Nw Brandon, MN | NICKEL SIZE HAIL STILL FALLING AS OF 304 PM. |
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 |
|---|---|---|---|
| Aug 27, 2:29 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 7.7 hours before the alert went out and 197 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
- 79 J/kg
- Mixed-layer CIN
- -574 J/kg
- Mixed-layer LCL
- 668 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 271941 SVRMPX MNC041-272045- /O.NEW.KMPX.SV.W.0327.070827T1940Z-070827T2045Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 240 PM CDT MON AUG 27 2007 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA... * UNTIL 345 PM CDT * AT 237 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 8 MILES SOUTHWEST OF EVANSVILLE...OR ABOUT 21 MILES WEST OF ALEXANDRIA...AND MOVING EAST TO NORTHEAST AT 30 MPH. * LOCATIONS IMPACTED INCLUDE... EVANSVILLE... BRANDON... ALEXANDRIA... MILLERVILLE... GARFIELD... MELBY... STAY INDOORS...AND AWAY FROM WINDOWS. LAT...LON 4609 9578 4581 9576 4586 9520 4610 9515 $$ TDK
2 follow-up statements
000 WWUS53 KMPX 272012 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 311 PM CDT MON AUG 27 2007 MNC041-272045- /O.CON.KMPX.SV.W.0327.000000T0000Z-070827T2045Z/ DOUGLAS MN- 311 PM CDT MON AUG 27 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR DOUGLAS COUNTY... AT 259 PM CDT...NICKEL SIZE HAIL WAS REPORTED JUST NORTHWEST OF BRANDON WITH THIS STORM. PENNY SIZE HAIL WAS ALSO REPORTED TWO MILES SOUTH OF MILELRSVILLE AT 259 PM. AT 309 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED JUST EAST OF MILLERVILLE...OR ABOUT 15 TO 20 MILES NORTHWEST OF ALEXANDRIA...AND MOVING NORTHEAST AT 30 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE ROSE CITY...LEAF VALLEY...LAKE MILTONA...AND MILTONA. THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS LAT...LON 4607 9573 4585 9551 4586 9520 4610 9515 $$ TDK
000 WWUS53 KMPX 272028 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 327 PM CDT MON AUG 27 2007 MNC041-272045- /O.CAN.KMPX.SV.W.0327.000000T0000Z-070827T2045Z/ DOUGLAS MN- 327 PM CDT MON AUG 27 2007 ...THE SEVERE THUNDERSTORM WARNING FOR DOUGLAS COUNTY IS CANCELLED... THE STORM HAS MOVED NORTH OF MILTONA...OUT OF DOUGLAS COUNTY. THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. PENNY AND NICKEL SIZE HAIL FELL AT 259 PM...IN THE BRANDON AND MILLERSVILLE AREAS. LAT...LON 4607 9573 4585 9551 4586 9520 4610 9515 $$ TDK
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 1:47 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Ramsey | 43 min |
| Aug 27, 3:51 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 24 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2007Every severe thunderstorm warning in 2007
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.