Alert archive / Alabama / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 5, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jan 7, 1998, 5:50 AM CST for Baldwin County, Alabama. It was in force for 55 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 7, 1998, 5:50 AM CST (11:50 UTC)
- Expired
- Jan 7, 1998, 6:45 AM CST
- In force
- 55 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Baldwin County, AL
The radar
The Mobile radar (KMOB), 47 km from the middle of the area, began a volume at 11:52 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 7, 4:00 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 11.8 hours before the alert went out and 192 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
- 4 J/kg
- Mixed-layer CIN
- -252 J/kg
- Mixed-layer LCL
- 768 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 319 m²/s²
- 0-3 km storm-relative helicity
- 407 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
200 WUUS1 KMOB 071151 RRA SVRMOB ALC003-071245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 550 AM CST WED JAN 7 1998 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 645 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWEST ALABAMA ...BALDWIN COUNTY AT 550 AM CST...MOBILE DOPPLER WEATHER RADAR INDICATED A POWERFUL LINE OF THUNDERSTORMS WHICH WILL BEGIN TO ADVANCE INTO WESTERN BALDWIN COUNTY BY 6 AM...AND AFFECT THE TOWNS OF STOCKTON AND TENSAW BY 620 AM...AND BAY MINETTE BY 630 AM. WIND GUSTS IN EXCESS OF 45 MPH HAVE BEEN REPORTED WITH THESE THUNDERSTORMS. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
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 7, 3:17 AM CST, 2 hours 33 minutes earlier.
Area forecast discussion, Jan 7, 3:17 AM CST, 2 hours 33 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MOBILE AL 315 AM WED JAN 7 1998 HEAVY RAINS EXPECTED ACROSS ENTIRE FA UP THRU MID TO LATE AFT TODAY AS DEVELOPING SFC LOW MOVES INLAND OVR THE CSTL LA AND MS. AS UPPER TROF DEEPENS OVR CENTRL TX TODAY EXPECT SFC LOW TO PUSH NNE MOVING INTO THE TN VAL BY TONIGHT. LATEST AVN AND ETA FILES SHOW BEST LIFT AND MOISTURE OVR THE REGION UP THROUGH 18Z TODAY WITH 50KT LOW LEVL JET DEVLOPING AROUND 12Z ALONG THE AL AND NWFL CST. WITH THIS AND SOME MID LEVL DRYING BY MIDDAY COULD SEE SOME STRONGER... POSSIBLY SEVERE...TS DEVELOPING NEAR THE CST BEFORE MOST OF THE THIS PRECIP PULLS OUT LATER THIS AFT. ALSO...EXPECT SOME PROBLEMS BEFORE ITS ALL OVER W/ ONE HR TOTALS BELOW 2 INCHES IN SOME AREAS FOR FLOODING TO OCCUR. BEST CHANCE FOR FLASH FLOODING W/ BE FROM WASHINGTON TO CHOCTAW COS IN AL AND ALL OF SE MS. LATEST FCST LOOKS TO BE ON TRACK THOUGH POPS MAY NEED TO BE LOWERED SLIGHTLY FOR TONIGHT AND THU WITH BETTER CLDS RETURNING NEAR THE FRNT ON THU. OVER THE COASTAL WATERS...SELY WINDS INCREASING TO 20 TO 25 KT AS LOW LEVL JET DEVELOPES ALONG THE CST BECOMING SW TONIGHT. COULD SEE SOME STRONG TS OVER THE GULF BEFORE ITS ALL OVR WITH WINDS UP TO OR EXCEEDING GALE FORCE. WENT TO 8 FT ON THE SEAS LATE IN THE PD. LATEST MODEL RUNS INDICATING BETTER FLOW FROM THE W THEN NW AFTER FROPA. MOB 67/57/65/40 +431 PNS 69/59/64/46 +531 DTS 68/62/65/48 +531 EVR 66/57/63/39 +451 32
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 4:55 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 65 min |
| Jan 7, 6:00 AM CST | Severe Thunderstorm Warning | MOB | Mobile | 60 min |
| Jan 7, 6:38 AM CST | Flash Flood Warning | MOB | Choctaw, Mobile, Washington | 3 hr |
| Jan 7, 7:10 AM CST | Severe Thunderstorm Warning | MOB | Choctaw | 20 min |
| Jan 7, 7:39 AM CST | Flash Flood Warning | MOB | Baldwin | 3 hr |
| Jan 7, 7:53 AM CST | Tornado Warning | MOB | Baldwin | 52 min |
| Jan 7, 7:57 AM CST | Severe Thunderstorm Warning | MOB | Escambia | 63 min |
| Jan 7, 8:08 AM CST | Severe Thunderstorm Warning | MOB | Monroe | 67 min |
| Jan 7, 8:33 AM CST | Severe Thunderstorm Warning | MOB | Conecuh | 57 min |
| Jan 7, 9:01 AM CST | Severe Thunderstorm Warning | MOB | Wilcox | 59 min |
| Jan 7, 9:05 AM CST | Severe Thunderstorm Warning | MOB | Escambia | 60 min |
| Jan 7, 9:40 AM CST | Severe Thunderstorm Warning | MOB | Covington | 60 min |
| Jan 7, 9:45 AM CST | Flash Flood Warning | MOB | Choctaw, Mobile, Washington | 3 hr |
| Jan 7, 10:09 AM CST | Severe Thunderstorm Warning | MOB | Butler | 61 min |
| Jan 7, 10:38 AM CST | Flash Flood Warning | MOB | Escambia | 112 min |
| Jan 7, 10:43 AM CST | Severe Thunderstorm Warning | MOB | Covington | 62 min |
| Jan 7, 10:55 AM CST | Flash Flood Warning | MOB | Baldwin | 110 min |
| Jan 7, 4:41 PM CST | Flash Flood Warning | MOB | Baldwin | 5 hr |
Nearby
Severe Thunderstorm Warnings in Alabama, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.