Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 154, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jun 22, 1990, 2:23 PM CDT for Calhoun County, Mississippi. It was in force for 37 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 22, 1990, 2:23 PM CDT (19:23 UTC)
- Expired
- Jun 22, 1990, 3:00 PM CDT
- In force
- 37 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Calhoun County, MS
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 22, 2:40 PM CDT | Hail 0.75 | Calhoun, MS |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 7.4 hours before the alert went out and 114 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3624 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 172 m²/s²
- 0-3 km storm-relative helicity
- 244 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAN 221926 RRA SVRJAN MSC013-222000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 223 PM CDT FRI JUN 22 1990 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 300 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH CENTRAL MISSISSIPPI ...CALHOUN COUNTY AT 225PM RADAR INDICATED A SEVERE THUNDERSTORM HAD DEVELOPED 12 MILES WEST SOUTHWEST OF CALHOUN CITY MOVING EAST AT 25 MILES AN HOUR. THIS STORM LIKELY CONTAINS VERY HIGH WINDS. IF YOU ARE OUTSIDE...SEEK SHELTER IN A STRONG BUILDING AWAY FROM WINDOWS. DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE AL`L POSSIBLE IN SEVERE THUNDERSTORMS. <
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 22, 9:59 AM CDT, 4 hours 24 minutes before
MSZALL-221700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 955 AM CDT FRI JUN 22 1990 ...NUMEROUS STRONG THUNDERSTORMS THIS AFTERNOON MAY BE SEVERE... WEATHER CONDITIONS WERE BECOMING MORE FAVORABLE EARLY TODAY FOR DEVELOPMENT OF NUMEROUS STRONG THUNDERSTORMS ACROSS MISSISSIPPI THIS AFTERNOON AND EVENING. AS TEMPERATURES HEAT WELL INTO THE 90S ONCE AGAIN AND A COOL FRONT MOVES IN FROM THE WEST...THE POTENTIAL FOR SEVERE THUNDERSTORMS HAS ALSO INCREASED FROM YESTERDAY. AN UNSEASONABLY STRONG UPPER LEVEL LOW PRESSURE SYSTEM CROSSING THE UPPER MISSISSIPPI VALLEY WAS HELPING TO SET THE STAGE FOR TODAY/S THUNDERSTORM OUTBREAK. THE ASSOCIATED SURFACE COOL FRONT EXTENDED FROM NEAR ST. LOUIS TO HOT SPRINGS TO DALLAS EARLY THIS MORNING. AS THE FRONT MOVES EASTWARD... NUMEROUS STRONG THUNDERSTORMS WILL DEVELOP ACROSS MAINLY NORTH AND CENTRAL MISSISSIPPI THIS AFTERNOON AND EVENING. < UNLIKE THURSDAY/S THUNDERSTORMS THAT WERE NEARLY STATIONARY...TODAY/S STORMS WILL BE MOVING EAST TO NORTHEAST AT 15 TO 25 MILES AN HOUR WHICH ALSO ENHANCES THE LIKELIHOOD OF SEVERE WEATHER INCLUDING DAMAGING WINDS ...LARGE HAIL...FIERCE ELECTRICAL STORMS AND EVEN A FEW TORNADOES. | RESIDENTS IN ALL OF MISSISSIPPI...ESPECIALLY THE NORTHERN TWO THIRDS... SHOULD BE ON GUARD FOR THE POSSIBILITY OF SEVERE THUNDERSTORMS AND KEEP TUNED TO THE LATEST WEATHER INFORMATION FOR FURTHER DEVELOPMENTS.
Special weather statement, Jun 22, 1:44 PM CDT, 39 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-222000-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
130 PM CDT FRI JUN 22 1990
...SHOWERS AND THUNDERSTORMS INCREASING OVER SECTIONS OF
NORTH MISSISSIPPI...
AT 125 PM CDT...SHOWERS AND THUNDERSTORMS WERE INCREASING OVER NORTH
MISSISSIPPI IN A 20 MILE WIDE BAND FROM TUPELO TO GREENVILLE. THE
STRONGEST THUNDERSTORMS WERE IN A NARROW LINE FROM WATER VALLEY TO NEAR
CLEVELAND MOVING EAST AT 25 MILES AN HOUR. THESE STORMS WILL LIKELY
CONTAIN GUSTY WINDS...FREQUENT LIGHTNING STRIKES AND BRIEF HEAVY RAIN IN
THE NEXT HOUR AS THEY MOVE ACROSS YALOBUSHA...GRENADA...TALLAHATCHI"E...
CALHOUN...LEFLORE...AND SUNFLOWER COUNTIES.
OTHER SHOWERS AND THUNDERSTORMS WERE SCATTERED FROM COLUMBUS TO
KOSCIUSKO AND FROM COLUMBIA TO PICAYUNE IN EAST MISSISSIPPI. THEY
WERE ALSO MOVING EAST AT 25 MILES AN HOUR.The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 3:18 PM CDT | Severe Thunderstorm Warning | JAN | Carroll | 27 min |
| Jun 22, 4:35 PM CDT | Severe Thunderstorm Warning | JAN | Noxubee | 40 min |
| Jun 22, 5:31 PM CDT | Severe Thunderstorm Warning | JAN | Carroll, Leflore | 44 min |
| Jun 22, 6:06 PM CDT | Severe Thunderstorm Warning | JAN | Yazoo | 39 min |
| Jun 22, 6:29 PM CDT | Severe Thunderstorm Warning | JAN | Humphreys | 31 min |
| Jun 22, 6:50 PM CDT | Severe Thunderstorm Warning | JAN | Hinds, Madison, Yazoo | 25 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1990Every severe thunderstorm warning in 1990
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.