Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 135, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 20, 2007, 6:57 PM CDT for Scott County, Minnesota. It was in force for 63 min. 3 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
- Jun 20, 2007, 6:57 PM CDT (23:57 UTC)
- Expired
- Jun 20, 2007, 8:00 PM CDT
- In force
- 63 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Scott County, MN
The radar
The Minneapolis radar (KMPX), 18 km from the middle of the area, began a volume at 23:56 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 |
|---|---|---|---|
| Jun 20, 7:20 PM CDT | HAIL 1 | 3 Sw Prior Lake, MN | AT INTERSECTION OF HIGHWAY 13 AND 17 |
| Jun 20, 7:22 PM CDT | HAIL 1.75 | 5 E Jordan, MN | |
| Jun 20, 7:54 PM CDT | HAIL 1.75 | 2 N Elko, 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 |
|---|---|---|---|
| Jun 20, 4:22 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 12.0 hours before the alert went out and 390 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
- 952 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 1187 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS53 KMPX 202357
SVRMPX
MNC139-210100-
/O.NEW.KMPX.SV.W.0135.070620T2357Z-070621T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
657 PM CDT WED JUN 20 2007
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SCOTT COUNTY IN EAST CENTRAL MINNESOTA...
* UNTIL 800 PM CDT
* AT 655 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING BASEBALL SIZE HAIL AND 65 MPH WINDS. THIS
STORM WAS LOCATED 5 MILES WEST OF SHAKOPEE...OR ABOUT 20 MILES
SOUTHWEST OF MINNEAPOLIS...AND MOVING SOUTHEAST AT 35 MPH.
* LOCATIONS IMPACTED INCLUDE...
SHAKOPEE...
PRIOR LAKE...
SAVAGE...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS
INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.
LAT...LON 4480 9347 4469 9365 4459 9353 4454 9331
4478 9334
$$
KAT1 follow-up statement
000
WWUS53 KMPX 210023
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
723 PM CDT WED JUN 20 2007
MNC139-210100-
/O.CON.KMPX.SV.W.0135.000000T0000Z-070621T0100Z/
SCOTT MN-
723 PM CDT WED JUN 20 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR SCOTT COUNTY...
AT 722 PM CDT...GOLF BALL SIZE HAIL WAS REPORTED 5 MILES EAST OF
JORDAN WITH THIS STORM.
AT 721 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING GOLF BALL SIZE HAIL. THIS STORM
WAS LOCATED 4 MILES SOUTHWEST OF CREDIT RIVER...OR ABOUT 6 MILES
SOUTH OF PRIOR LAKE...AND MOVING SOUTHEAST AT 35 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE MARYSTOWN...CRYSTAL BAY...
CREDIT RIVER...SHAKOPEE...SAVAGE...PRIOR LAKE...NEW MARKET AND ELKO.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 4480 9347 4469 9365 4459 9353 4454 9331
4478 9334
$$
KATThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 4:06 PM CDT | Severe Thunderstorm Warning | MPX | Pope, Stearns | 54 min |
| Jun 20, 4:40 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Isanti | 32 min |
| Jun 20, 4:52 PM CDT | Severe Thunderstorm Warning | MPX | Stearns | 53 min |
| Jun 20, 4:55 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 34 min |
| Jun 20, 5:16 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Sherburne | 59 min |
| Jun 20, 5:24 PM CDT | Severe Thunderstorm Warning | MPX | Meeker, Wright | 66 min |
| Jun 20, 5:32 PM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs | 43 min |
| Jun 20, 5:52 PM CDT | Severe Thunderstorm Warning | MPX | Isanti | 53 min |
| Jun 20, 6:09 PM CDT | Tornado Warning | MPX | Wright | 36 min |
| Jun 20, 6:11 PM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs, Sherburne | 34 min |
| Jun 20, 6:16 PM CDT | Severe Thunderstorm Warning | MPX | Carver, McLeod | 59 min |
| Jun 20, 6:21 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 54 min |
| Jun 20, 6:24 PM CDT | Tornado Warning | MPX | Carver | 51 min |
| Jun 20, 6:28 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin | 62 min |
| Jun 20, 6:47 PM CDT | Severe Thunderstorm Warning | MPX | Wright | 26 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.