Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 338, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 28, 2007, 2:54 AM CDT for Ramsey County, Washington County, Minnesota. It was in force for 51 min. 5 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 28, 2007, 2:54 AM CDT (07:54 UTC)
- Expired
- Aug 28, 2007, 3:45 AM CDT
- In force
- 51 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Ramsey County, MN, Washington County, MN
The radar
The Minneapolis radar (KMPX), 46 km from the middle of the area, began a volume at 07:55 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 28, 3:05 AM CDT | HAIL 1 | St Paul, MN | WINDS ESTIMATED AT 60 MPH. 4 TO 5 INCH DIAMETER BRANCH DOWNED. |
| Aug 28, 3:08 AM CDT | HAIL 1 | St Paul, MN | HAILED FOR 45 SECONDS...FOLLOWED BY HEAVY RAIN. |
| Aug 28, 3:15 AM CDT | TSTM WND GST 60 | St Paul, MN | |
| Aug 28, 3:16 AM CDT | TSTM WND DMG | Newport, MN | TREES DOWN. TIME ESTIMATED. |
| Aug 28, 3:16 AM CDT | TSTM WND DMG | St Paul Park, MN | TREES DOWN. TIME 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 |
|---|---|---|---|
| Aug 28, 1:56 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 7.9 hours before the alert went out and 49 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
- 2564 J/kg
- Mixed-layer CIN
- -230 J/kg
- Mixed-layer LCL
- 806 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 379 m²/s²
- 0-3 km storm-relative helicity
- 526 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS53 KMPX 280755
SVRMPX
MNC123-163-280900-
/O.NEW.KMPX.SV.W.0338.070828T0754Z-070828T0900Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
254 AM CDT TUE AUG 28 2007
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA...
RAMSEY COUNTY IN EAST CENTRAL MINNESOTA...
* UNTIL 400 AM CDT
* AT 251 AM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 12 MILES WEST OF ARDEN HILLS TO 18
MILES SOUTHWEST OF ST PAUL TO 27 MILES SOUTHWEST OF COTTAGE
GROVE...AND MOVING EAST AT 35 MPH.
* LOCATIONS IMPACTED INCLUDE...
ARDEN HILLS...
ROSEVILLE...
ST PAUL...
SHOREVIEW...
VADNAIS HEIGHTS...
MAPLEWOOD...
NORTH ST PAUL...
WHITE BEAR LAKE...
OAKDALE...
COTTAGE GROVE...
THIS IS A DANGEROUS LINE OF STORMS. 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 4494 9310 4489 9300 4478 9301 4477 9296
4478 9291 4475 9280 4481 9279 4498 9277
4511 9281 4519 9289 4513 9303 4512 9312
4505 9321 4491 9321 4489 9318
$$4 follow-up statements
000
WWUS53 KMPX 280816
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
315 AM CDT TUE AUG 28 2007
MNC123-163-280900-
/O.CON.KMPX.SV.W.0338.000000T0000Z-070828T0900Z/
WASHINGTON MN-RAMSEY MN-
315 AM CDT TUE AUG 28 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR RAMSEY AND WASHINGTON COUNTIES...
AT 205 AM CDT...DAMAGING WINDS OF 71 MPH WERE REPORTED AT
MINNEAPOLIS ST PAUL INTERNATIONAL AIRPORT WITH THIS STORM.
AT 312 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM LITTLE CANADA TO 3 MILES SOUTHWEST OF COTTAGE GROVE TO
7 MILES SOUTH OF COTTAGE GROVE...AND MOVING EAST AT 35 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE OAK PARK HEIGHTS...
LAUDERDALE...LANDFALL...GEM LAKE...WOODBURY...WHITE BEAR LAKE...
VADNAIS HEIGHTS...STILLWATER...ST PAUL PARK AND ST PAUL.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 4494 9310 4489 9300 4478 9301 4477 9296
4478 9291 4475 9280 4481 9279 4498 9277
4511 9281 4519 9289 4513 9303 4512 9312
4505 9321 4491 9321 4489 9318
$$000
WWUS53 KMPX 280817 CCA
SVSMPX
SEVERE WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
315 AM CDT TUE AUG 28 2007
MNC123-163-280900-
/O.COR.KMPX.SV.W.0338.000000T0000Z-070828T0900Z/
WASHINGTON MN-RAMSEY MN-
315 AM CDT TUE AUG 28 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR RAMSEY AND WASHINGTON COUNTIES...
AT 305 AM CDT...DAMAGING WINDS OF 71 MPH WERE REPORTED AT
MINNEAPOLIS ST PAUL INTERNATIONAL AIRPORT WITH THIS STORM.
AT 312 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM LITTLE CANADA TO 3 MILES SOUTHWEST OF COTTAGE GROVE TO
7 MILES SOUTH OF COTTAGE GROVE...AND MOVING EAST AT 35 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE OAK PARK HEIGHTS...
LAUDERDALE...LANDFALL...GEM LAKE...WOODBURY...WHITE BEAR LAKE...
VADNAIS HEIGHTS...STILLWATER...ST PAUL PARK AND ST PAUL.
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 4494 9310 4489 9300 4478 9301 4477 9296
4478 9291 4475 9280 4481 9279 4498 9277
4511 9281 4519 9289 4513 9303 4512 9312
4505 9321 4491 9321 4489 9318
$$000
WWUS53 KMPX 280830
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
328 AM CDT TUE AUG 28 2007
MNC123-280838-
/O.CAN.KMPX.SV.W.0338.000000T0000Z-070828T0900Z/
RAMSEY MN-
328 AM CDT TUE AUG 28 2007
...THE SEVERE THUNDERSTORM WARNING FOR RAMSEY COUNTY IS CANCELLED...
RADAR INDICATED THAT THE SEVERE THUNDERSTORM HAD MOVED OUT OF RAMSEY
COUNTY. THUS THE WARNING HAS BEEN CANCELLED. WINDS TO 60 MPH WERE
MEASURED AT THE ST PAUL AIRPORT.
REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT FOR RELAY TO
THE NATIONAL WEATHER SERVICE.
LAT...LON 4505 9291 4492 9292 4484 9286 4475 9280
4481 9279 4498 9277 4508 9279
$$
MNC163-280900-
/O.CON.KMPX.SV.W.0338.000000T0000Z-070828T0900Z/
WASHINGTON MN-
328 AM CDT TUE AUG 28 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR WASHINGTON COUNTY...
AT 328 AM CDT...DAMAGING WINDS OF 60 MPH WERE MEASURED IN ST PAUL
WITH THIS STORM.
AT 328 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 65 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 10 MILES NORTHWEST OF STILLWATER TO 3 MILES WEST OF
LAKELAND TO 10 MILES SOUTH OF AFTON...AND MOVING EAST AT 45 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE OAK PARK HEIGHTS...
STILLWATER...LAKELAND...BAYPORT AND AFTON.
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 4505 9291 4492 9292 4484 9286 4475 9280
4481 9279 4498 9277 4508 9279
$$000
WWUS53 KMPX 280845
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
345 AM CDT TUE AUG 28 2007
MNC163-280855-
/O.CAN.KMPX.SV.W.0338.000000T0000Z-070828T0900Z/
WASHINGTON MN-
345 AM CDT TUE AUG 28 2007
...THE SEVERE THUNDERSTORM WARNING FOR WASHINGTON COUNTY IS
CANCELLED...
SEVERE STORMS HAVE MOVED OUT OF THE AREA AND ADDITIONAL DEVELOPMENT
IS NOT EXPECTED THROUGH DAYBREAK. THUS THE WARNING HAS BEEN
CANCELLED. THE STORMS DID PRODUCE WIDESPREAD WIND DAMAGE ACROSS
SOUTHERN PORTIONS OF THE TWIN CITIES.
LAT...LON 4505 9291 4492 9292 4484 9286 4475 9280
4481 9279 4498 9277 4508 9279
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 10:17 PM CDT | Severe Thunderstorm Warning | MPX | Isanti, Kanabec | 23 min |
| Aug 27, 10:37 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 28 min |
| Aug 28, 12:59 AM CDT | Severe Thunderstorm Warning | MPX | Redwood, Renville, Yellow Medicine | 61 min |
| Aug 28, 1:39 AM CDT | Severe Thunderstorm Warning | MPX | Carver, McLeod, Wright | 51 min |
| Aug 28, 1:49 AM CDT | Severe Thunderstorm Warning | MPX | Sibley | 56 min |
| Aug 28, 1:52 AM CDT | Severe Thunderstorm Warning | MPX | Chisago | 53 min |
| Aug 28, 2:13 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Le Sueur, Rice, Scott | 62 min |
| Aug 28, 2:27 AM CDT | Severe Thunderstorm Warning | MPX | Carver | 40 min |
| Aug 28, 2:47 AM CDT | Flash Flood Warning | MPX | Carver, Dakota, Hennepin, Scott | 3 hr |
| Aug 28, 2:47 AM CDT | Flash Flood Warning | MPX | Carver, Dakota, Hennepin, Ramsey, Scott | 3 hr |
| Aug 28, 3:11 AM CDT | Severe Thunderstorm Warning | MPX | Dakota | 19 min |
| Aug 28, 11:44 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Rice | 46 min |
| Aug 28, 12:04 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 48 min |
| Aug 28, 1:09 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 40 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.