Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 117, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 5, 2011, 6:26 PM CDT for Anoka County, Ramsey County, Washington County, Minnesota. It was in force for 32 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 5, 2011, 6:26 PM CDT (23:26 UTC)
- Expired
- Jul 5, 2011, 6:58 PM CDT
- In force
- 32 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Anoka County, MN, Ramsey County, MN, Washington County, MN
The radar
The Minneapolis radar (KMPX), 61 km from the middle of the area, began a volume at 23:28 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, 11.4 hours before the alert went out and 63 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
- 247 J/kg
- Mixed-layer CIN
- -274 J/kg
- Mixed-layer LCL
- 1040 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
602
WUUS53 KMPX 052326
SVRMPX
MNC003-123-163-060030-
/O.NEW.KMPX.SV.W.0117.110705T2326Z-110706T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
626 PM CDT TUE JUL 5 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN ANOKA COUNTY IN EAST CENTRAL MINNESOTA...
NORTHEASTERN RAMSEY COUNTY IN EAST CENTRAL MINNESOTA...
NORTHERN WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA...
* UNTIL 730 PM CDT
* AT 624 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED NEAR LINO LAKES...OR ABOUT 6 MILES SOUTHWEST
OF FOREST LAKE...AND MOVING SOUTHEAST AT 15 MPH.
LOCATIONS IN THE WARNING INCLUDE...
FOREST LAKE...
LEXINGTON...
HAM LAKE...
BLAINE...
CIRCLE PINES...
LINO LAKES...
CENTERVILLE...
NORTH OAKS...
HUGO...
WHITE BEAR LAKE...
MAHTOMEDI...
MARINE ON ST CROIX...
WILLERNIE...
LAKE ELMO...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
&&
LAT...LON 4534 9309 4531 9301 4529 9301 4529 9297
4521 9277 4503 9282 4497 9288 4521 9328
TIME...MOT...LOC 2326Z 312DEG 15KT 4521 9307
WIND...HAIL 60MPH 1.00IN
$$2 follow-up statements
443
WWUS53 KMPX 052340
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
640 PM CDT TUE JUL 5 2011
MNC003-123-163-060030-
/O.CON.KMPX.SV.W.0117.000000T0000Z-110706T0030Z/
ANOKA MN-RAMSEY MN-WASHINGTON MN-
640 PM CDT TUE JUL 5 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
WASHINGTON...NORTHEASTERN RAMSEY AND SOUTHEASTERN ANOKA COUNTIES
UNTIL 730 PM CDT...
AT 637 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
CENTERVILLE...OR 8 MILES SOUTH OF FOREST LAKE...MOVING SOUTHEAST AT
15 MPH.
LOCATIONS IMPACTED INCLUDE...
HUGO...LINO LAKES...WHITE BEAR LAKE...MAHTOMEDI...WILLERNIE...LAKE
ELMO AND STILLWATER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.
&&
LAT...LON 4528 9318 4526 9308 4524 9298 4523 9286
4521 9277 4503 9282 4497 9288 4521 9328
TIME...MOT...LOC 2339Z 312DEG 15KT 4516 9302
WIND...HAIL 60MPH 1.00IN
$$217
WWUS53 KMPX 052358
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
658 PM CDT TUE JUL 5 2011
MNC003-123-163-060013-
/O.CAN.KMPX.SV.W.0117.000000T0000Z-110706T0030Z/
ANOKA MN-RAMSEY MN-WASHINGTON MN-
658 PM CDT TUE JUL 5 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WASHINGTON...
NORTHEASTERN RAMSEY AND SOUTHEASTERN ANOKA COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.
LAT...LON 4528 9318 4526 9308 4524 9298 4523 9286
4521 9277 4503 9282 4497 9288 4521 9328
TIME...MOT...LOC 2358Z 312DEG 15KT 4511 9294
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 10:33 PM CDT | Special Weather Statement | MPX | Douglas | 117 min |
| Jul 4, 11:54 PM CDT | Special Weather Statement | MPX | Douglas, Pope, Stevens, Todd | 96 min |
| Jul 5, 12:35 AM CDT | Severe Thunderstorm Warning | MPX | Stevens | 55 min |
| Jul 5, 1:20 AM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle | 55 min |
| Jul 5, 2:14 AM CDT | Special Weather Statement | MPX | Chippewa, Kandiyohi, Lac qui Parle, Pope, Renville, Stearns and 2 more | 76 min |
| Jul 5, 3:50 AM CDT | Areal Flood Advisory | MPX | Lac qui Parle, Yellow Medicine | 3 hr |
| Jul 5, 4:56 AM CDT | Areal Flood Advisory | MPX | Stevens, Swift | 4 hr |
| Jul 5, 5:05 AM CDT | Special Weather Statement | MPX | Pope, Stevens, Swift | 55 min |
| Jul 5, 7:06 AM CDT | Areal Flood Advisory | MPX | Lac qui Parle, Yellow Medicine | 3 hr |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2011Every severe thunderstorm warning in 2011
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.