Alert archive / Maine / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 21, NWS Caribou, ME
NWS Caribou, ME issued this severe thunderstorm warning at Jun 1, 2011, 9:16 PM EDT for Hancock County, Penobscot County, Maine. It was in force for 29 min. 1 report 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 1, 2011, 9:16 PM EDT (01:16 UTC)
- Expired
- Jun 1, 2011, 9:45 PM EDT
- In force
- 29 min
- Issued by
- NWS Caribou, ME
- Area
- Storm-based polygon
Counties Hancock County, ME, Penobscot County, ME
The radar
The Caribou radar (KCBW), 113 km from the middle of the area, began a volume at 01:17 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 1, 9:20 PM EDT | HAIL 1 | 1 Se Greenfield, ME |
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 1, 7:40 PM EDT | Tornado Watch | SPC | 2 hr |
The nearest sounding before it
Caribou, ME (KCAR), launched 00:00Z, 1.3 hours before the alert went out and 200 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
- 1290 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 740 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 455 m²/s²
- 0-3 km storm-relative helicity
- 502 m²/s²
- Significant tornado parameter
- 3.1
- Supercell composite
- 16.5
The text
As transmitted, in the capitals the NWS used until 2016.
566 WUUS51 KCAR 020116 SVRCAR MEC009-019-020145- /O.NEW.KCAR.SV.W.0021.110602T0116Z-110602T0145Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CARIBOU ME 916 PM EDT WED JUN 1 2011 THE NATIONAL WEATHER SERVICE IN CARIBOU MAINE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL PENOBSCOT COUNTY IN EAST CENTRAL MAINE... NORTH CENTRAL HANCOCK COUNTY IN SOUTHEAST MAINE... * UNTIL 945 PM EDT * AT 912 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR COSTIGAN...OR 7 MILES NORTHEAST OF OLD TOWN...AND MOVING EAST AT 45 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GREENFIELD AND SAPONAC. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. 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. PLEASE REPORT SEVERE WEATHER BY CONTACTING YOUR NEAREST LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT WEDNESDAY EVENING FOR NORTHERN MAINE. && LAT...LON 4522 6808 4496 6805 4492 6862 4510 6868 TIME...MOT...LOC 0116Z 256DEG 43KT 4503 6851 $$ VJN
1 follow-up statement
076 WWUS51 KCAR 020140 SVSCAR SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CARIBOU ME 940 PM EDT WED JUN 1 2011 MEC009-019-020149- /O.EXP.KCAR.SV.W.0021.000000T0000Z-110602T0145Z/ PENOBSCOT ME-HANCOCK ME- 940 PM EDT WED JUN 1 2011 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL HANCOCK AND CENTRAL PENOBSCOT COUNTIES WILL EXPIRE AT 945 PM EDT... DOPPLER RADAR HAS INDICATED THAT THE STORM THAT PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS. PLEASE REPORT SEVERE WEATHER BY CONTACTING YOUR NEAREST LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT WEDNESDAY EVENING FOR NORTHERN MAINE. LAT...LON 4522 6808 4496 6805 4492 6862 4510 6868 TIME...MOT...LOC 0139Z 256DEG 43KT 4509 6813 $$ NOUHAN
The office that day
Everything else NWS Caribou, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 8:10 PM EDT | Severe Thunderstorm Warning | CAR | Hancock, Penobscot | 50 min |
| Jun 1, 8:41 PM EDT | Severe Thunderstorm Warning | CAR | Penobscot | 29 min |
Nearby
Severe Thunderstorm Warnings in Maine, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.