Alert archive / Mississippi / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 19, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jan 12, 1998, 5:01 AM CST for Wayne County, Mississippi. It was in force for 59 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
- Jan 12, 1998, 5:01 AM CST (11:01 UTC)
- Expired
- Jan 12, 1998, 6:00 AM CST
- In force
- 59 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Wayne County, MS
The radar
The Mobile radar (KMOB), 115 km from the middle of the area, began a volume at 11:01 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 |
|---|---|---|---|
| Jan 12, 5:30 AM CST | Hail 0.75 | Boice, MS | Dime size hail was reported along US Hwy 45 near Boice. |
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.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 11.0 hours before the alert went out and 151 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
- 1896 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 236 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
351 WUUS1 KMOB 121102 RRA SVRMOB MSC153-121200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 501 AM CST MON JAN 12 1998 THE NATIONAL WEATHER SERVICE IN MOBILE AL HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEASTERN MISSISSIPPI ...WAYNE COUNTY AT 456 AM CST... DOPPLER RADAR AT MOBILE INDICATED A SEVERE THUNDERSTORM 15 MILES WEST OF WHISTLER MOVING EAST NORTHEAST AT 35 MPH. THE FOLLOWING LOCATION IS IN THE PATH OF THIS STORM... WHISTLER. THIS STORM HAS PRODUCED DIME SIZE HAIL DURING THE LAST HOUR. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH... DESTRUCTIVE HAIL... DEADLY LIGHTNING... AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. &
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.
NWS Mobile, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 12, 3:01 AM CST, 2 hours earlier.
Area forecast discussion, Jan 12, 3:01 AM CST, 2 hours before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MOBILE AL 300 AM MON JAN 12 1998 SATELLITE IMAGERY AND REGIONAL 88DS INDICATING LARGE AREA OF RAIN AND EMBEDDED THUNDERSTORMS OVER LA/MS. SHORT RANGE DATA INDICATES BULK OF THIS PCPN TO MOVE ENE DURING THE EARLY MORNING HOURS. WITH THIS IN MIND...WILL LIKELY SEE SOME PCPN TODAY OVER WESTERN AND NORTHERN PART OF CWA. 00Z MODEL DATA INDICATES MID/UPPER LEVEL DISTURBANCE TO MOVE EAST ACROSS GULF COAST STATES TODAY AND TONIGHT...WITH PRIMARY DYNAMICS CONTINUING TO BE INDICATED AROUND THE 700 MB LEVEL. MAIN MID/UPPER DYNAMICS ACROSS FA LOOKS TO BE 00Z-06Z TUE TIME FRAME. SPC HAS MOST OF FA OUTLOOKED SLGT SVR TODAY AND TONIGHT...AND WITH UPPER DYNAMICS MOVG ACROSS...AND FCST SOUNDINGS INDICATING 20-40 KT 850 JET IN PLACE OVER AREA...AND MID LEVEL DRY AIR...WILL POSSIBLY SEE SOME STRONG/DAMAGING STRAIGHT LINE WINDS AND LARGE HAIL WITH SOME OF THE STORMS LATE THIS AFTERNOON AND THIS EVENING. FAVORABLE VEERING WIND PROFILE ALSO SUGGESTS POSSIBILITY OF A FEW ISOLATED TORNADOS AS WELL. MAIN LIMITING FACTOR APPEARS TO BE AVAILABLE MOISTURE...BUT SFC DEWPOINTS PROGGED TO BE NEAR 60 DEGREES BY 06Z TONIGHT ALONG COASTAL SECTIONS OF CWA. PREFER WETTER FAN PCPN GUIDANCE...TEMP GUIDANCE LOOKS REASONABLE. OVER MARINE AREA...SE WINDS SHIFTING SW THROUGH PERIOD AROUND 20 KTS...WITH SEAS BUILDING TO NEAR 7 FT...ROUGH ON PROTECTED WATERS. SCATTERED TO NUMEROUS SHRAS AND TSTMS. SCEC DTS-PNS...SCA PNS-PQL. MOB 67/58/69/59 4467 PNS 68/59/70/59 3466 DTS 67/58/69/59 3466 EVR 65/52/66/51 4667 12
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 12, 7:45 AM CST | Severe Thunderstorm Warning | MOB | Stone | 60 min |
| Jan 12, 7:57 AM CST | Severe Thunderstorm Warning | MOB | Perry | 63 min |
| Jan 12, 8:37 AM CST | Severe Thunderstorm Warning | MOB | George, Greene | 58 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1998Every severe thunderstorm warning in 1998
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; radar from the NEXRAD Level II archive.