Alert archive / Florida / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 7, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jan 23, 2017, 2:54 AM EST for Broward County, Florida. It was in force for 36 min. 2 reports 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
- Jan 23, 2017, 2:54 AM EST (07:54 UTC)
- Expired
- Jan 23, 2017, 3:30 AM EST
- In force
- 36 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Broward County, FL
The radar
The Miami radar (KAMX), 67 km from the middle of the area, began a volume at 07:57 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 23, 2:55 AM EST | TSTM WND GST 50 | 2 Nw Weston, FL | A 50 MPH WIND GUST WAS MEASURED BY A MESONET STATION AT GATOR RUN ELEMENTARY SCHOOL AT 255 AM |
| Jan 23, 3:05 AM EST | TSTM WND DMG | 1 Wsw Plantation, FL | LARGE BRANCH DOWN ALONG WITH DEBRIS SCATTERED AT JACARANDA GOLF CLUB |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 22, 9:57 PM EST | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Miami, FL (KMFL), launched 00:00Z, 7.9 hours before the alert went out and 42 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
- 635 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 1027 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 204 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.7
The text
As transmitted.
904
WUUS52 KMFL 230754
SVRMFL
FLC011-230830-
/O.NEW.KMFL.SV.W.0007.170123T0754Z-170123T0830Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Miami FL
254 AM EST MON JAN 23 2017
The National Weather Service in Miami has issued a
* Severe Thunderstorm Warning for...
Northeastern Broward County in southeastern Florida...
* Until 330 AM EST
* At 254 AM EST, a severe thunderstorm was located over Intersection
I-75 And U.S. 27, or 7 miles northwest of Davie, moving east at 55
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Fort Lauderdale, Hollywood, Coral Springs, Pompano Beach and Davie.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 600 AM EST for southeastern
Florida.
LAT...LON 2618 8003 2605 8007 2605 8046 2623 8047
2632 8034 2632 8009
TIME...MOT...LOC 0754Z 258DEG 46KT 2614 8042
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
KScharf2 follow-up statements
911
WWUS52 KMFL 230812
SVSMFL
Severe Weather Statement
National Weather Service Miami FL
312 AM EST MON JAN 23 2017
FLC011-230830-
/O.CON.KMFL.SV.W.0007.000000T0000Z-170123T0830Z/
Broward FL-
312 AM EST MON JAN 23 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM EST
FOR NORTHEASTERN BROWARD COUNTY...
At 312 AM EST, severe thunderstorms were located along a line
extending from Hillsboro Beach to Twin Lakes to near Intersection
I-75 And Griffin Road, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Fort Lauderdale, Hollywood, Coral Springs, Pompano Beach and Davie.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 600 AM EST for southeastern
Florida.
LAT...LON 2616 8004 2605 8007 2605 8046 2608 8046
2621 8029 2632 8021 2632 8009 2619 8004
TIME...MOT...LOC 0812Z 263DEG 40KT 2632 8009 2618 8018 2603 8040
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
ALM392
WWUS52 KMFL 230826 RRA
SVSMFL
Severe Weather Statement
National Weather Service Miami FL
326 AM EST MON JAN 23 2017
FLC011-230836-
/O.EXP.KMFL.SV.W.0007.000000T0000Z-170123T0830Z/
Broward FL-
326 AM EST MON JAN 23 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BROWARD COUNTY
WILL EXPIRE AT 330 AM EST...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore the warning will
be allowed to expire. However gusty winds are still possible with
these thunderstorms.
A tornado watch remains in effect until 600 AM EST for southeastern
Florida.
LAT...LON 2616 8004 2605 8007 2605 8046 2608 8046
2621 8029 2632 8021 2632 8009 2619 8004
TIME...MOT...LOC 0826Z 258DEG 46KT 2635 7991 2621 8000 2607 8022
$$
ALMThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 22, 11:15 PM EST | Special Weather Statement | MFL | Glades, Hendry | 60 min |
| Jan 22, 11:32 PM EST | Special Marine Warning | MFL | 28 min | |
| Jan 22, 11:50 PM EST | Special Marine Warning | MFL | 25 min | |
| Jan 23, 12:03 AM EST | Special Marine Warning | MFL | 57 min | |
| Jan 23, 12:03 AM EST | Special Weather Statement | MFL | Collier, Glades, Hendry, Palm Beach | 57 min |
| Jan 23, 12:20 AM EST | Special Marine Warning | MFL | 25 min | |
| Jan 23, 12:25 AM EST | Severe Thunderstorm Warning | MFL | Glades, Hendry, Palm Beach | 50 min |
| Jan 23, 12:36 AM EST | Severe Thunderstorm Warning | MFL | Collier | 24 min |
| Jan 23, 12:46 AM EST | Special Marine Warning | MFL | 44 min | |
| Jan 23, 12:54 AM EST | Special Weather Statement | MFL | Broward, Collier, Palm Beach | 66 min |
| Jan 23, 12:58 AM EST | Tornado Warning | MFL | Palm Beach | 32 min |
| Jan 23, 1:03 AM EST | Severe Thunderstorm Warning | MFL | Collier | 42 min |
| Jan 23, 1:12 AM EST | Special Marine Warning | MFL | 63 min | |
| Jan 23, 1:17 AM EST | Tornado Warning | MFL | Palm Beach | 28 min |
| Jan 23, 1:25 AM EST | Tornado Warning | MFL | Collier | 20 min |
| Jan 23, 1:26 AM EST | Special Marine Warning | MFL | 94 min | |
| Jan 23, 1:41 AM EST | Tornado Warning | MFL | Palm Beach | 10 min |
| Jan 23, 1:52 AM EST | Special Marine Warning | MFL | 83 min | |
| Jan 23, 1:56 AM EST | Special Weather Statement | MFL | Broward, Monroe, Palm Beach | 64 min |
| Jan 23, 2:02 AM EST | Severe Thunderstorm Warning | MFL | Palm Beach | 43 min |
| Jan 23, 2:23 AM EST | Wind Advisory | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more | 17 hr |
| Jan 23, 2:29 AM EST | Severe Thunderstorm Warning | MFL | Broward | 31 min |
| Jan 23, 2:48 AM EST | Special Weather Statement | MFL | Broward, Miami-Dade, Monroe | 87 min |
| Jan 23, 2:49 AM EST | Special Weather Statement | MFL | Monroe | 26 min |
| Jan 23, 2:56 AM EST | Tornado Warning | MFL | Miami-Dade, Monroe | 34 min |
| Jan 23, 2:57 AM EST | Special Marine Warning | MFL | 63 min | |
| Jan 23, 3:06 AM EST | Special Marine Warning | MFL | 84 min | |
| Jan 23, 3:35 AM EST | Severe Thunderstorm Warning | MFL | Broward, Miami-Dade, Monroe | 40 min |
| Jan 23, 3:42 AM EST | Special Marine Warning | MFL | 48 min | |
| Jan 23, 3:44 AM EST | Tornado Warning | MFL | Miami-Dade | 19 min |
| Jan 23, 4:01 AM EST | Special Weather Statement | MFL | Miami-Dade | 44 min |
| Jan 23, 4:15 AM EST | Severe Thunderstorm Warning | MFL | Miami-Dade | 11 min |
| Jan 23, 4:19 AM EST | Special Marine Warning | MFL | 41 min | |
| Jan 23, 4:55 AM EST | Special Marine Warning | MFL | 50 min | |
| Jan 23, 5:43 AM EST | Special Marine Warning | MFL | 32 min | |
| Jan 23, 5:43 AM EST | Special Marine Warning | MFL | 32 min | |
| Jan 23, 6:12 AM EST | Special Marine Warning | MFL | 48 min | |
| Jan 23, 7:03 AM EST | Special Weather Statement | MFL | Collier, Glades, Hendry | 87 min |
| Jan 23, 7:45 AM EST | Special Marine Warning | MFL | 60 min | |
| Jan 23, 8:30 AM EST | Special Weather Statement | MFL | Palm Beach | 75 min |
| Jan 23, 9:52 AM EST | Special Weather Statement | MFL | Miami-Dade | 53 min |
| Jan 23, 10:38 AM EST | Special Marine Warning | MFL | 82 min | |
| Jan 23, 11:34 AM EST | Special Marine Warning | MFL | 56 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2017Every severe thunderstorm warning in 2017
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.