Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 217, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 4, 2007, 5:10 PM CDT for Hennepin County, Minnesota. It was in force for 35 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
- Jul 4, 2007, 5:10 PM CDT (22:10 UTC)
- Expired
- Jul 4, 2007, 5:45 PM CDT
- In force
- 35 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Hennepin County, MN
The radar
The Minneapolis radar (KMPX), 20 km from the middle of the area, began a volume at 22:11 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, 10.2 hours before the alert went out and 20 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
- 179 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 855 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 55 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 042210 SVRMPX MNC053-042245- /O.NEW.KMPX.SV.W.0217.070704T2210Z-070704T2245Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 510 PM CDT WED JUL 4 2007 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA... * UNTIL 545 PM CDT * AT 507 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 7 MILES WEST OF PLYMOUTH...OR ABOUT 16 MILES WEST OF MINNEAPOLIS...AND MOVING SOUTHEAST AT 30 MPH. * LOCATIONS IMPACTED INCLUDE... PLYMOUTH... MINNETONKA... THE LAKE MINNETONKA AREA... GOLDEN VALLEY... HOPKINS... ST LOUIS PARK... MINNEAPOLIS... STAY INDOORS...AND AWAY FROM WINDOWS. LAT...LON 4511 9357 4506 9370 4487 9350 4496 9325 $$
2 follow-up statements
000 WWUS53 KMPX 042229 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 527 PM CDT WED JUL 4 2007 MNC053-042245- /O.CON.KMPX.SV.W.0217.000000T0000Z-070704T2245Z/ HENNEPIN MN- 527 PM CDT WED JUL 4 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR HENNEPIN COUNTY... AT 524 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING DAMAGING WINDS TO 60 MPH. THIS STORM WAS LOCATED NEAR THE LAKE MINNETONKA AREA...OR ABOUT OVER THE LAKE MINNETONKA AREA...AND MOVING SOUTHEAST AT 25 MPH. THE STORM HAS WEAKENED OVER THE LAST SEVERAL MINUTES...BUT REMAINS CAPABLE OF PRODUCING GUSTY WINDS THAT MAY DOWN TREE LIMBS. OTHER LOCATIONS IN THE WARNING INCLUDE WOODLAND...MINNETONKA... DEEPHAVEN...THE LAKE MINNETONKA AREA...RICHFIELD...HOPKINS...EDINA AND EDEN PRAIRIE. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. LAT...LON 4499 9347 4493 9356 4482 9345 4485 9325 $$
000 WWUS53 KMPX 042238 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 535 PM CDT WED JUL 4 2007 MNC053-042245- /O.EXP.KMPX.SV.W.0217.000000T0000Z-070704T2245Z/ HENNEPIN MN- 535 PM CDT WED JUL 4 2007 ...THE SEVERE THUNDERSTORM WARNING FOR HENNEPIN COUNTY EXPIRES AT 545 PM CDT... THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING FOR HENNEPIN COUNTY HAS WEAKENED TO BELOW SEVERE LIMITS. BRIEF WIND GUSTS TO 45 OR 50 MPH WILL REMAIN POSSIBLE OVER FAR SOUTHERN SECTIONS OF THE COUNTY...INCLUDING EDEN PRAIRIE AND BLOOMINGTON...THROUGH 6 PM. REPORT ANY SEVERE WEATHER TO LOCAL LAW ENFORCEMENT FOR RELAY TO THE NATIONAL WEATHER SERVICE. LAT...LON 4499 9347 4493 9356 4482 9345 4485 9325 $$
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.