Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 351, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 17, 2007, 8:27 PM CDT for Morrison County, Minnesota. It was in force for 28 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
- Sep 17, 2007, 8:27 PM CDT (01:27 UTC)
- Expired
- Sep 17, 2007, 8:55 PM CDT
- In force
- 28 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Morrison County, MN
The radar
The Minneapolis radar (KMPX), 149 km from the middle of the area, began a volume at 01:29 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 17, 7:36 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 1.5 hours before the alert went out and 148 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
- 1285 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1974 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 225 m²/s²
- 0-3 km storm-relative helicity
- 372 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS53 KMPX 180127
SVRMPX
MNC097-180215-
/O.NEW.KMPX.SV.W.0351.070918T0127Z-070918T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
827 PM CDT MON SEP 17 2007
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MORRISON COUNTY IN CENTRAL MINNESOTA...
* UNTIL 915 PM CDT
* AT 824 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED 5 MILES SOUTHWEST OF
LITTLE FALLS...AND MOVING NORTHEAST AT 40 MPH.
* LOCATIONS IMPACTED INCLUDE...
LITTLE FALLS...
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.
STAY INDOORS...AND AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT
TUESDAY MORNING FOR SOUTHERN MINNESOTA.
LAT...LON 4616 9429 4616 9392 4615 9392 4582 9442
4594 9461 4615 9435 4616 9434 4618 9432
TIME...MOT...LOC 0127Z 223DEG 35KT 4595 9442
$$
JPR2 follow-up statements
000
WWUS53 KMPX 180138
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
838 PM CDT MON SEP 17 2007
MNC097-180215-
/O.CON.KMPX.SV.W.0351.000000T0000Z-070918T0215Z/
MORRISON MN-
838 PM CDT MON SEP 17 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR MORRISON COUNTY...
AT 837 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 3 MILES NORTHEAST
OF LITTLE FALLS...OR ABOUT 29 MILES NORTHEAST OF ALBANY...AND MOVING
NORTHEAST AT 40 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE SOBIESKI...LITTLE FALLS AND
HARDING.
LAT...LON 4616 9429 4616 9392 4615 9392 4585 9443
4599 9456 4606 9446 4607 9446 4618 9432
TIME...MOT...LOC 0138Z 223DEG 35KT 4603 9431
$$
JPR000
WWUS53 KMPX 180155
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
855 PM CDT MON SEP 17 2007
MNC097-180205-
/O.CAN.KMPX.SV.W.0351.000000T0000Z-070918T0215Z/
MORRISON MN-
855 PM CDT MON SEP 17 2007
...THE SEVERE THUNDERSTORM WARNING FOR MORRISON COUNTY IS
CANCELLED...
RADAR INDICATED THAT THE STORM HAD WEAKENED TO BELOW SEVERE LIMITS.
THUS THE WARNING HAS BEEN CANCELLED.
LAT...LON 4616 9429 4616 9392 4615 9392 4585 9443
4599 9456 4606 9446 4607 9446 4618 9432
TIME...MOT...LOC 0155Z 223DEG 35KT 4615 9415
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 8:31 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle | 21 min |
| Sep 17, 9:07 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 38 min |
| Sep 17, 9:16 PM CDT | Severe Thunderstorm Warning | MPX | Morrison, Stearns | 32 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.