Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 45, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 29, 2007, 3:22 PM CDT for Douglas County, Minnesota. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 29, 2007, 3:22 PM CDT (20:22 UTC)
- Expired
- May 29, 2007, 3:45 PM CDT
- In force
- 23 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), 194 km from the middle of the area, began a volume at 20:23 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.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.4 hours before the alert went out and 192 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
- 574 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 867 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 292023 SVRMPX MNC041-292045- /O.NEW.KMPX.SV.W.0045.070529T2022Z-070529T2045Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 322 PM CDT TUE MAY 29 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 318 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS. THIS STORM WAS LOCATED NEAR GARFIELD...OR ABOUT 8 MILES NORTHWEST OF ALEXANDRIA...AND MOVING NORTHEAST AT 40 MPH. * LOCATIONS IMPACTED INCLUDE... LEAF VALLEY... MILTONA... ROSE CITY... DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. LAT...LON 4594 9559 4586 9541 4611 9517 4611 9549 $$
2 follow-up statements
000 WWUS53 KMPX 292035 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 335 PM CDT TUE MAY 29 2007 MNC041-292045- /O.CON.KMPX.SV.W.0045.000000T0000Z-070529T2045Z/ DOUGLAS MN- 335 PM CDT TUE MAY 29 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR DOUGLAS COUNTY... AT 331 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS. THIS STORM WAS LOCATED 5 MILES SOUTHEAST OF LEAF VALLEY...OR ABOUT 10 MILES EAST OF BRANDON...AND MOVING NORTHEAST AT 30 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE LEAF VALLEY AND MILTONA. THIS WARNING MAY VERY WELL HAVE TO BE EXTENDED. DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. LAT...LON 4594 9548 4590 9537 4611 9516 4611 9549 $$
000 WWUS53 KMPX 292045 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 343 PM CDT TUE MAY 29 2007 MNC041-292053- /O.EXP.KMPX.SV.W.0045.000000T0000Z-070529T2045Z/ DOUGLAS MN- 343 PM CDT TUE MAY 29 2007 ...THE SEVERE THUNDERSTORM WARNING FOR DOUGLAS COUNTY EXPIRES AT 345 PM CDT... SEVERE STORMS HAVE WEAKENED AT THIS TIME. HOWEVER...MORE THUNDERSTORMS REMAIN OVER THAT AREA THAT MAY PRODUCE PEA TO HALF INCH SIZE HAIL AND BRIEF GUSTY WINDS. REMAIN ALERT FOR POSSIBLE ADDITIONAL WARNINGS. LAT...LON 4594 9548 4590 9537 4611 9516 4611 9549 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 3:31 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 44 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.