Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 220, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 8, 2007, 1:32 PM CDT for Anoka County, Isanti County, Minnesota. It was in force for 58 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
- Jul 8, 2007, 1:32 PM CDT (18:32 UTC)
- Expired
- Jul 8, 2007, 2:30 PM CDT
- In force
- 58 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Anoka County, MN, Isanti County, MN
The radar
The Minneapolis radar (KMPX), 62 km from the middle of the area, began a volume at 18:35 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 |
|---|---|---|---|
| Jul 8, 2:00 PM CDT | HAIL 1 | St Francis, MN | |
| Jul 8, 2:00 PM CDT | HAIL 1 | St Francis, MN | |
| Jul 8, 2:14 PM CDT | HAIL 0.75 | 3 Sw St Francis, MN | REPORTED IN BURNS TOWNSHIP. DISTANCE FROM ST FRANCIS IS ESTIMATED. |
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 |
|---|---|---|---|
| Jul 8, 1:28 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 6.5 hours before the alert went out and 62 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
- 432 J/kg
- Mixed-layer CIN
- -564 J/kg
- Mixed-layer LCL
- 2355 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 208 m²/s²
- 0-3 km storm-relative helicity
- 107 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 081832 SVRMPX MNC003-059-081930- /O.NEW.KMPX.SV.W.0220.070708T1832Z-070708T1930Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 132 PM CDT SUN JUL 8 2007 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... ISANTI COUNTY IN EAST CENTRAL MINNESOTA... ANOKA COUNTY IN EAST CENTRAL MINNESOTA... * UNTIL 230 PM CDT * AT 131 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED 15 MILES NORTHWEST OF ANDOVER...OR ABOUT 11 MILES SOUTH OF PRINCETON...AND MOVING EAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... ANDOVER... EAST BETHEL... 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. LAT...LON 4549 9350 4528 9351 4518 9303 4543 9304 $$ JPR
2 follow-up statements
000 WWUS53 KMPX 081854 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 153 PM CDT SUN JUL 8 2007 MNC003-059-081930- /O.CON.KMPX.SV.W.0220.000000T0000Z-070708T1930Z/ ISANTI MN-ANOKA MN- 153 PM CDT SUN JUL 8 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR ANOKA AND ISANTI COUNTIES... AT 152 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 4 MILES WEST OF ST FRANCIS...OR ABOUT 8 MILES NORTHEAST OF ELK RIVER...AND MOVING EAST AT 15 MPH. ANOTHER POTENTIALLY SEVERE STORM WAS LOCATED NEAR ISANTI. OTHER LOCATIONS IN THE WARNING INCLUDE CEDAR...ATHENS...ST FRANCIS... HAM LAKE...EAST BETHEL...BETHEL AND ANDOVER. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. LAT...LON 4549 9350 4528 9351 4518 9303 4543 9304 $$ JPR
000 WWUS53 KMPX 081917 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 216 PM CDT SUN JUL 8 2007 MNC003-059-081930- /O.CON.KMPX.SV.W.0220.000000T0000Z-070708T1930Z/ ISANTI MN-ANOKA MN- 216 PM CDT SUN JUL 8 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR ANOKA AND ISANTI COUNTIES... AT 215 PM CDT...DIME SIZE HAIL WAS REPORTED IN BIRCH TOWNSHIP IN ANOKA COUNTY WITH THIS STORM. AT 213 PM CDT...THE SEVERE STORM WAS LOCATED NEAR CEDAR...OR ABOUT OVER ANDOVER...AND MOVING SOUTHEAST AT 20 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE CEDAR...ATHENS...ST FRANCIS... ISANTI...HAM LAKE...EAST BETHEL...BETHEL...ANDOVER AND RAMSEY. LAT...LON 4549 9350 4525 9350 4518 9303 4550 9304 $$ JPR
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 12:57 PM CDT | Severe Thunderstorm Warning | MPX | Wright | 63 min |
| Jul 8, 1:09 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 51 min |
| Jul 8, 2:03 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 27 min |
| Jul 8, 2:12 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 63 min |
| Jul 8, 2:29 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Washington | 46 min |
| Jul 8, 2:48 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin | 57 min |
| Jul 8, 3:01 PM CDT | Severe Thunderstorm Warning | MPX | Carver, McLeod | 59 min |
| Jul 8, 3:31 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne | 26 min |
| Jul 8, 3:44 PM CDT | Severe Thunderstorm Warning | MPX | Anoka | 61 min |
| Jul 8, 3:47 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Ramsey, Washington | 58 min |
| Jul 8, 6:14 PM CDT | Severe Thunderstorm Warning | MPX | Nicollet | 29 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.