Alert archive / Ohio / Mesoscale Discussions in 2003
Mesoscale Discussion 2276
The Storm Prediction Center issued this mesoscale discussion at Aug 26, 2003, 7:55 PM EDT for 27 counties in Ohio; Beaver County, Greene County, Washington County, Pennsylvania; 7 counties in West Virginia. It was in force for 65 min.
The area
The outline as issued.
The facts
- Issued
- Aug 26, 2003, 7:55 PM EDT (23:55 UTC)
- Expired
- Aug 26, 2003, 9:00 PM EDT
- In force
- 65 min
- Issued by
- the Storm Prediction Center
All 37 counties
Ashland County, OH, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Delaware County, OH, Guernsey County, OH, Hardin County, OH, Harrison County, OH, Holmes County, OH, Jefferson County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Monroe County, OH, Morrow County, OH, Muskingum County, OH, Noble County, OH, Richland County, OH, Stark County, OH, Summit County, OH, Tuscarawas County, OH, Union County, OH, Wayne County, OH, Beaver County, PA, Greene County, PA, Washington County, PA, Brooke County, WV, Hancock County, WV, Marion County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Wetzel County, WV
The radar
The Cleveland radar (KCLE), 130 km from the middle of the area, began a volume at 23:58 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.9 hours before the alert went out and 147 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
- 15 J/kg
- Mixed-layer CIN
- -573 J/kg
- Mixed-layer LCL
- 2438 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
214 ACUS11 KWNS 262356 SWOMCD SPC MCD 262355 PAZ000-WVZ000-OHZ000-270100- MESOSCALE DISCUSSION 2276 NWS STORM PREDICTION CENTER NORMAN OK 0655 PM CDT TUE AUG 26 2003 AREAS AFFECTED...N-CENTRAL THROUGH ERN OH CONCERNING...SEVERE THUNDERSTORM WATCH 895... VALID 262355Z - 270100Z WW 895 CONTINUES ACROSS PORTIONS OF N-CENTRAL AND ERN OH. PRESENT INDICATIONS ARE THAT AN ADDITIONAL WATCH MAY BE NEEDED EAST OF THE CURRENT WATCH IN NRN WV/SWRN PA. TRENDS WILL BE MONITORED DURING THE NEXT HOUR OR SO FOR THIS POSSIBILITY. AT 2345Z...SEVERE MCS CONTINUES MOVING 285/45KT ACROSS N-CENTRAL PORTION OF OH. SYSTEM CONTINUES TO HAVE A STRONG...WELL-DEFINED COLD POOL IN ITS WAKE...SUGGESTING AREAS OF DAMAGING STRAIGHT LINE WINDS...ESPECIALLY WITH BOWING SEGMENTS. SURFACE TEMPERATURES IN THE LOW 80S AND DEWPOINTS IN THE LOW 70S ARE CONTRIBUTING TO 100MB MLCAPE VALUES OF 1500-2000 J/KG IN ADVANCE OF THESE STORMS. CURRENT MOTION TAKES CONVECTIVE ACTIVITY EAST OF CURRENT WATCH AND INTO THE WRN WV PANHANDLE/NRN WV/SWRN PA AROUND 0130Z. GIVEN MOIST/UNSTABLE AIR MASS IN PLACE ACROSS THESE AREAS AND STRONG MCS...AN ADDITIONAL SEVERE THUNDERSTORM WATCH MAY BE REQUIRED EAST OF THE CURRENT WATCH DURING THE NEXT 1-2 HOURS. ..BANACOS.. 08/26/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...PBZ...RLX...CLE...ILN... 40168389 40308398 40638388 40848294 41268172 40817999 39308005 40098324
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 12:27 AM EDT | Mesoscale Discussion | SPC | Ashtabula, Carroll, Columbiana, Cuyahoga, Erie, Geauga and 14 more | 63 min |
| Aug 26, 8:30 AM EDT | Mesoscale Discussion | SPC | Ashland, Ashtabula, Cuyahoga, Erie, Geauga, Hancock and 12 more | 2 hr |
| Aug 26, 9:10 AM EDT | Severe Thunderstorm Watch | SPC | Allen, Ashland, Ashtabula, Auglaize, Columbiana, Crawford and 35 more | 5 hr |
| Aug 26, 11:08 AM EDT | Mesoscale Discussion | SPC | Ashland, Athens, Auglaize, Belmont, Carroll, Champaign and 32 more | 2 hr |
| Aug 26, 1:05 PM EDT | Severe Thunderstorm Watch | SPC | Athens, Auglaize, Belmont, Butler, Carroll, Champaign and 39 more | 5 hr |
| Aug 26, 2:19 PM EDT | Mesoscale Discussion | SPC | Monroe, Noble | 116 min |
| Aug 26, 3:46 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Belmont, Carroll, Champaign and 37 more | 119 min |
| Aug 26, 4:25 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Ashland, Auglaize, Belmont, Carroll, Columbiana and 39 more | 6 hr |
| Aug 26, 6:18 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Belmont, Carroll, Columbiana and 35 more | 57 min |
| Aug 26, 2:55 PM EDT | Severe Thunderstorm Watch | SPC | Berkeley, Grant, Hampshire, Hardy, Jefferson, Pendleton | 5 hr |
Nearby
Mesoscale Discussions in Ohio, 2003Mesoscale Discussions in West Virginia, 2003Mesoscale Discussions in Pennsylvania, 2003Every mesoscale discussion in 2003
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.