Alert archive / Florida / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 13, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Apr 15, 2015, 4:36 PM CDT for Santa Rosa County, Florida. It was in force for 54 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 15, 2015, 4:36 PM CDT (21:36 UTC)
- Expired
- Apr 15, 2015, 5:30 PM CDT
- In force
- 54 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Santa Rosa County, FL
The radar
The Mobile radar (KMOB), 102 km from the middle of the area, began a volume at 21:37 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 |
|---|---|---|---|
| Apr 15, 4:55 PM CDT | TSTM WND DMG | S Wallace, FL | COUNTY 911 REPORTS TREES DOWN FROM WINDS ESTIMATED AT 60MPH. INTENSE HAIL ALSO REPORTED BUT NO INFORMATION ON SIZE AT THIS TIME. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 9.6 hours before the alert went out and 247 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
- 455 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 598 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
968
WUUS54 KMOB 152136
SVRMOB
FLC113-152230-
/O.NEW.KMOB.SV.W.0013.150415T2136Z-150415T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
436 PM CDT WED APR 15 2015
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL SANTA ROSA COUNTY IN NORTHWESTERN FLORIDA...
* UNTIL 530 PM CDT
* AT 435 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING
WINDS OVER 60 MPH WAS LOCATED NEAR MOLINO...AND MOVING EAST AT 15
MPH.
* LOCATIONS IMPACTED INCLUDE...
MILTON... PACE... BAGDAD...
PEA RIDGE... WHITING FIELD... ROEVILLE...
POINT BAKER... SPRINGHILL... INDIAN FORD...
WALLACE... ALLENTOWN... HAROLD...
LAT...LON 3058 8723 3062 8726 3063 8725 3066 8727
3071 8727 3072 8728 3072 8730 3074 8731
3077 8730 3086 8691 3060 8686 3059 8699
3060 8703 3059 8704
TIME...MOT...LOC 2135Z 261DEG 13KT 3069 8725
$$2 follow-up statements
918
WWUS54 KMOB 152154
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
454 PM CDT WED APR 15 2015
FLC113-152230-
/O.CON.KMOB.SV.W.0013.000000T0000Z-150415T2230Z/
SANTA ROSA FL-
454 PM CDT WED APR 15 2015
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR CENTRAL SANTA ROSA COUNTY...
AT 453 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED NEAR PACE...
MOVING EAST AT 15 MPH.
LOCATIONS IMPACTED INCLUDE...
MILTON... BAGDAD... WHITING FIELD...
ROEVILLE... POINT BAKER... SPRINGHILL...
INDIAN FORD... HAROLD... EAST MILTON...
WALLACE... ALLENTOWN... SKYLINE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. PREPARE FOR DESTRUCTIVE HAIL AND DAMAGING
WINDS. PEOPLE OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY
FROM WINDOWS.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
&&
LAT...LON 3061 8723 3069 8723 3074 8722 3082 8690
3060 8686 3059 8699 3060 8703 3059 8704
TIME...MOT...LOC 2153Z 268DEG 13KT 3069 8717
$$861
WWUS54 KMOB 152216
SVSMOB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
516 PM CDT WED APR 15 2015
FLC113-152230-
/O.CON.KMOB.SV.W.0013.000000T0000Z-150415T2230Z/
SANTA ROSA FL-
516 PM CDT WED APR 15 2015
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR CENTRAL SANTA ROSA COUNTY...
AT 515 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER
SIZE HAIL AND DAMAGING WINDS OVER 60 MPH WAS LOCATED OVER POINT
BAKER...OR NEAR MILTON...MOVING EAST AT 15 MPH. THIS STORM HAS A
HISTORY OF PRODUCING COPIOUS HAIL AND WIND DAMAGE.
LOCATIONS IMPACTED INCLUDE...
MILTON... WHITING FIELD... ROEVILLE...
POINT BAKER... SPRINGHILL... INDIAN FORD...
HAROLD... EAST MILTON... SKYLINE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. PREPARE FOR DESTRUCTIVE HAIL AND DAMAGING
WINDS. PEOPLE OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT AWAY
FROM WINDOWS.
TO REPORT SEVERE WEATHER...CALL (800) 284-9059.
&&
LAT...LON 3063 8713 3068 8715 3074 8712 3078 8689
3060 8686 3059 8699 3060 8703 3060 8705
TIME...MOT...LOC 2215Z 277DEG 14KT 3067 8707
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 5:30 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa, Santa Rosa | 49 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2015Every severe thunderstorm warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.