Alert archive / Arkansas / Mesoscale Discussions in 2004
Mesoscale Discussion 173
The Storm Prediction Center issued this mesoscale discussion at Mar 4, 2004, 9:24 PM CST for 6 states. It was in force for 66 min.
The area
The outline as issued.
The facts
- Issued
- Mar 4, 2004, 9:24 PM CST (03:24 UTC)
- Expired
- Mar 4, 2004, 10:30 PM CST
- In force
- 66 min
- Issued by
- the Storm Prediction Center
All 47 counties
Arkansas County, AR, Bradley County, AR, Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Desha County, AR, Drew County, AR, Greene County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lee County, AR, Lincoln County, AR, Mississippi County, AR, Monroe County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, Randolph County, AR, St. Francis County, AR, Woodruff County, AR, Alexander County, IL, Fulton County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Dunklin County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Ripley County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO, Bolivar County, MS, Coahoma County, MS, DeSoto County, MS, Quitman County, MS, Tate County, MS, Tunica County, MS, Dyer County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 3.4 hours before the alert went out and 112 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
- 54 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 798 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 295 m²/s²
- 0-3 km storm-relative helicity
- 489 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 6:15 PM CST | Tornado Watch | SPC | Arkansas, Ashley, Baxter, Bradley, Calhoun, Chicot and 39 more | 5 hr |
| Mar 5, 4:40 PM CST | Mesoscale Discussion | SPC | Bath, Boyd, Breathitt, Carter, Clark, Elliott and 16 more | 2 hr |
| Mar 5, 12:57 AM CST | Mesoscale Discussion | SPC | Benton, DeSoto, Marshall, Tate, Tippah | 63 min |
| Mar 5, 4:50 PM CST | Mesoscale Discussion | SPC | Adams, Amite, Attala, Calhoun, Carroll, Chickasaw and 40 more | 115 min |
| Mar 5, 5:40 PM CST | Tornado Watch | SPC | Adams, Attala, Chickasaw, Choctaw, Claiborne, Clay and 29 more | 5 hr |
Nearby
Mesoscale Discussions in Arkansas, 2004Mesoscale Discussions in Missouri, 2004Mesoscale Discussions in Mississippi, 2004Every mesoscale discussion in 2004
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.