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WW 505 TORNADO IA IL MO 111755Z - 120100Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 505 NWS Storm Prediction Center Norman OK 1255 PM CDT Fri Jul 11 2025 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of South-Central and Southeast Iowa Far Northwest Illinois Far Northern Missouri * Effective this Friday afternoon and evening from 1255 PM until 800 PM CDT. * Primary threats include... A few tornadoes likely Scattered damaging wind gusts to 70 mph likely Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorm development is anticipated this afternoon in close proximity to a surface low over far southwest IA, and associated warm front that extends eastward across southern IA into far northwest IL. Ample low-level moisture is supporting strong buoyancy, and the potential for robust updrafts. Supercells capable of all severe hazards, including tornadoes, are possible within this environment. The tornado watch area is approximately along and 40 statute miles north and south of a line from 45 miles west northwest of Lamoni IA to 30 miles northeast of Moline IL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24035. ...Mosier Read more

WW 0506 Status Updates
STATUS REPORT ON WW 506 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 W DBQ TO 20 WSW LNR TO 30 SE VOK. ..KERR..07/11/25 ATTN...WFO...DMX...DVN...ARX...MKX... STATUS REPORT FOR WS 506 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC061-112340- IA . IOWA COUNTIES INCLUDED ARE DUBUQUE WIC043-111-112340- WI . WISCONSIN COUNTIES INCLUDED ARE GRANT SAUK THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 0506 Status Updates
STATUS REPORT ON WW 506 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 W DBQ TO 20 WSW LNR TO 30 SE VOK. ..KERR..07/11/25 ATTN...WFO...DMX...DVN...ARX...MKX... STATUS REPORT FOR WS 506 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC061-112340- IA . IOWA COUNTIES INCLUDED ARE DUBUQUE WIC043-111-112340- WI . WISCONSIN COUNTIES INCLUDED ARE GRANT SAUK THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 506 SEVERE TSTM IA WI 111815Z - 120200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 506 NWS Storm Prediction Center Norman OK 115 PM CDT Fri Jul 11 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of North-Central and Northeast Iowa Far Southwest Wisconsin * Effective this Friday afternoon and evening from 115 PM until 900 PM CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorm intensity and coverage is expected to increase over the next several hours from north-central/northeast IA into far southwest WI. Environmental conditions support the potential for some strong to severe storms capable of large hail and/or damaging gusts. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from 65 miles west of Waterloo IA to 20 miles east southeast of Lonerock WI. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 505... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier Read more

WW 0509 Status Updates
STATUS FOR WATCH 0509 HAS NOT BEEN ISSUED YET Read more

WW 0509 Status Updates
STATUS FOR WATCH 0509 HAS NOT BEEN ISSUED YET Read more

WW 509 SEVERE TSTM CO KS NE WY 112220Z - 120500Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 509 NWS Storm Prediction Center Norman OK 420 PM MDT Fri Jul 11 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of North-Central and Northeast Colorado Far Northwest Kansas Southwest Nebraska and the Nebraska Panhandle Southeast Wyoming * Effective this Friday afternoon and evening from 420 PM until 1100 PM MDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 75 mph possible Scattered large hail and isolated very large hail events to 2 inches in diameter possible SUMMARY...Scattered strong to severe thunderstorms should spread generally east-southeastward this evening while posing a threat for both large hail and severe/damaging winds. The largest hail may reach up to 1-2 inches in diameter, while peak gusts of 65-75 mph appear possible if a cluster of thunderstorms can form later this evening. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 30 miles west southwest of Cheyenne WY to 15 miles northeast of Mccook NE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 505...WW 506...WW 507...WW 508... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025. ...Gleason Read more

MD 1644 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR PORTIONS OF SOUTHEASTERN KANSAS...NORTHERN OKLAHOMA AND THE FAR EASTERN TEXAS PANHANDLE.
Mesoscale Discussion 1644 NWS Storm Prediction Center Norman OK 0316 PM CDT Fri Jul 11 2025 Areas affected...portions of southeastern Kansas...northern Oklahoma and the far eastern Texas Panhandle. Concerning...Severe potential...Watch unlikely Valid 112016Z - 112215Z Probability of Watch Issuance...20 percent SUMMARY...Scattered storm development later this afternoon may pose a risk for sporadic damaging gusts and some hail. A WW is unlikely. DISCUSSION...Boundary-layer destabilization is underway across much of the southern and central Plains ahead of a slow-moving cold front. Afternoon satellite imagery showed strong surface heating was resulting in gradual deepening of cumulus along and ahead of the front from eastern KS to northern OK. As continued heating and weak ascent from a passing upper-level trough overspread the area, a gradual increase in thunderstorms is expected this afternoon and evening. Focused largely along the front, modest vertical shear will favor a complex mode of multi cell clusters. 1500-2000 J/kg of MLCAPE observed from the 18z LMN/AMA soundings will support transient stronger updrafts capable of some hail with these storms. A deep and well-mixed boundary layer with prominent inverted-V structure should also support occasional stronger downdrafts capable of damaging gusts. Observational trends and recent CAM data suggest storm development will occur first along the front across eastern KS before spreading southwest into northern OK and the TX Panhandle. As storm clusters and outflow begin to amalgamate, the risk for damaging gusts will slowly increase into early evening. Given the limited storm organization a WW is not expected. ..Lyons/Mosier.. 07/11/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...SGF...EAX...TSA...TOP...ICT...OUN...DDC...AMA... LAT...LON 37019997 37999749 38949637 39179588 38999514 38519471 36849567 35339851 34950006 36400017 37019997 MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN Read more

WW 0508 Status Updates
STATUS FOR WATCH 0508 HAS NOT BEEN ISSUED YET Read more

WW 0508 Status Updates
STATUS FOR WATCH 0508 HAS NOT BEEN ISSUED YET Read more

WW 0508 Status Updates
STATUS FOR WATCH 0508 HAS NOT BEEN ISSUED YET Read more

WW 508 TORNADO IL WI 112150Z - 120400Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 508 NWS Storm Prediction Center Norman OK 450 PM CDT Fri Jul 11 2025 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Northern Illinois Southern Wisconsin * Effective this Friday afternoon and evening from 450 PM until 1100 PM CDT. * Primary threats include... A few tornadoes possible Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...A small but intense bow will move quickly eastward this evening while posing a threat for a few tornadoes and scattered to numerous severe/damaging winds. Peak gusts may reach up to 65-75 mph. Isolated large hail may also occur. The tornado watch area is approximately along and 55 statute miles east and west of a line from 10 miles east northeast of Madison WI to 55 miles south southeast of Rockford IL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 505...WW 506...WW 507... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 27045. ...Gleason Read more

WW 0507 Status Updates
STATUS REPORT ON WW 507 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..KERR..07/11/25 ATTN...WFO...LSX...EAX... STATUS REPORT FOR WS 507 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC001-009-149-112240- IL . ILLINOIS COUNTIES INCLUDED ARE ADAMS BROWN PIKE KSC005-043-091-103-121-209-112240- KS . KANSAS COUNTIES INCLUDED ARE ATCHISON DONIPHAN JOHNSON LEAVENWORTH MIAMI WYANDOTTE MOC001-003-007-019-021-025-033-037-041-047-049-053-061-063-079- 087-089-095-101-103-107-111-115-117-121-127-137-159-163-165-173- 175-177-195-205-211-112240- MO . MISSOURI COUNTIES INCLUDED ARE ADAIR ANDREW AUDRAIN BOONE BUCHANAN CALDWELL Read more

WW 0505 Status Updates
STATUS REPORT ON WW 505 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 E SDA TO 10 SSE OXV TO 35 S ALO. ..KERR..07/11/25 ATTN...WFO...DMX...DVN...EAX... STATUS REPORT FOR WT 505 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC015-067-071-073-085-109-131-161-177-187-195-112240- IL . ILLINOIS COUNTIES INCLUDED ARE CARROLL HANCOCK HENDERSON HENRY JO DAVIESS MCDONOUGH MERCER ROCK ISLAND STEPHENSON WARREN WHITESIDE IAC007-031-039-045-051-053-057-087-095-097-101-103-105-107-111- 113-115-117-123-135-139-159-163-173-177-179-183-185-112240- IA . IOWA COUNTIES INCLUDED ARE APPANOOSE CEDAR CLARKE CLINTON DAVIS DECATUR DES MOINES HENRY IOWA JACKSON JEFFERSON JOHNSON JONES KEOKUK LEE LINN LOUISA LUCAS MAHASKA MONROE MUSCATINE RINGGOLD SCOTT TAYLOR Read more

WW 0506 Status Updates
STATUS REPORT ON WW 506 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 S ALO TO 30 SE LSE. ..KERR..07/11/25 ATTN...WFO...DMX...DVN...ARX...MKX... STATUS REPORT FOR WS 506 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC043-055-061-112240- IA . IOWA COUNTIES INCLUDED ARE CLAYTON DELAWARE DUBUQUE WIC025-043-045-049-065-103-105-111-112240- WI . WISCONSIN COUNTIES INCLUDED ARE DANE GRANT GREEN IOWA LAFAYETTE RICHLAND ROCK SAUK THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 0506 Status Updates
STATUS REPORT ON WW 506 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 SSW FOD TO 40 S MCW TO 20 ENE MCW. ..DEAN..07/11/25 ATTN...WFO...DMX...DVN...ARX...MKX... STATUS REPORT FOR WS 506 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC013-015-017-019-023-043-055-061-065-069-075-079-083-127-169- 171-112140- IA . IOWA COUNTIES INCLUDED ARE BLACK HAWK BOONE BREMER BUCHANAN BUTLER CLAYTON DELAWARE DUBUQUE FAYETTE FRANKLIN GRUNDY HAMILTON HARDIN MARSHALL STORY TAMA WIC023-043-049-065-103-111-112140- WI . WISCONSIN COUNTIES INCLUDED ARE CRAWFORD GRANT IOWA LAFAYETTE RICHLAND SAUK THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL Read more

MD 1643 CONCERNING SEVERE POTENTIAL...WATCH LIKELY FOR NORTHEAST KS INTO NORTHERN MO AND WEST-CENTRAL IL
Mesoscale Discussion 1643 NWS Storm Prediction Center Norman OK 0201 PM CDT Fri Jul 11 2025 Areas affected...Northeast KS into northern MO and west-central IL Concerning...Severe potential...Watch likely Valid 111901Z - 112030Z Probability of Watch Issuance...80 percent SUMMARY...Strong to potentially severe storm development is possible this afternoon. DISCUSSION...Cumulus is deepening this afternoon near a cold front across extreme northeast KS into northwest MO, and also farther east into the Kansas City area. A mid/upper-level shortwave trough moving across eastern NE/western IA will support scattered storm development with time along/ahead of the cold front this afternoon. While deep-layer shear is relatively modest, strong to extreme buoyancy (MLCAPE of 3000-4000 J/kg) will support vigorous updrafts, with an initial threat of isolated hail and damaging wind. Southwesterly 25-35 kt flow in the 850-700 mb layer could eventually support development of one or more small clusters or bowing segments, with an increasing threat of damaging wind. Watch issuance is likely this afternoon in order to cover these threats. ..Dean/Mosier.. 07/11/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ILX...LSX...SGF...EAX...OAX...TOP... LAT...LON 39459572 39719574 40089566 40339547 40439500 40089478 40029367 40149179 40139032 39859009 39339010 39149108 38619277 38579341 38359520 38679541 39099561 39459572 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN Read more

MD 1642 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR PARTS OF MN INTO EASTERN SD
Mesoscale Discussion 1642 NWS Storm Prediction Center Norman OK 0127 PM CDT Fri Jul 11 2025 Areas affected...Parts of MN into eastern SD Concerning...Severe potential...Watch unlikely Valid 111827Z - 112030Z Probability of Watch Issuance...20 percent SUMMARY...Strong to locally severe storms are possible this afternoon. DISCUSSION...Storms are gradually increasing in coverage early this afternoon across west-central MN, in the vicinity of a cold front. Additional building cumulus and initial storm development has recently been noted along/ahead of the front across north-central MN. Additional storm development will be possible along/ahead of the front this afternoon as a mid/upper-level shortwave trough moves across southern SK/MB and ND and approaches the region from the west. The strongest mid/upper-level flow associated with the approaching shortwave will lag behind the front, resulting in relatively weak deep-layer shear along/ahead of the front. This will tend to limit storm organization to some extent, but moderate to locally strong buoyancy and steepening low-level lapse rates will support a threat of isolated hail and damaging gusts with the strongest storms this afternoon. ..Dean/Mosier.. 07/11/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DLH...MPX...FGF...FSD...ABR... LAT...LON 45389362 44229458 43629557 43259706 43349846 43649861 43839831 44459720 45259629 45789599 46269561 47619498 48879501 49259502 49359479 48629224 48319156 46699259 45389362 MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN Read more

WW 0507 Status Updates
STATUS REPORT ON WW 507 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..DEAN..07/11/25 ATTN...WFO...LSX...EAX... STATUS REPORT FOR WS 507 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC001-009-149-112140- IL . ILLINOIS COUNTIES INCLUDED ARE ADAMS BROWN PIKE KSC005-043-091-103-121-209-112140- KS . KANSAS COUNTIES INCLUDED ARE ATCHISON DONIPHAN JOHNSON LEAVENWORTH MIAMI WYANDOTTE MOC001-003-007-019-021-025-033-037-041-047-049-053-061-063-079- 087-089-095-101-103-107-111-115-117-121-127-137-159-163-165-173- 175-177-195-205-211-112140- MO . MISSOURI COUNTIES INCLUDED ARE ADAIR ANDREW AUDRAIN BOONE BUCHANAN CALDWELL Read more

WW 0505 Status Updates
STATUS REPORT ON WW 505 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..DEAN..07/11/25 ATTN...WFO...DMX...DVN...EAX... STATUS REPORT FOR WT 505 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC015-067-071-073-085-109-131-161-177-187-195-112140- IL . ILLINOIS COUNTIES INCLUDED ARE CARROLL HANCOCK HENDERSON HENRY JO DAVIESS MCDONOUGH MERCER ROCK ISLAND STEPHENSON WARREN WHITESIDE IAC001-003-007-011-031-039-045-049-051-053-057-087-095-097-099- 101-103-105-107-111-113-115-117-121-123-125-135-139-153-157-159- 163-173-175-177-179-181-183-185-112140- IA . IOWA COUNTIES INCLUDED ARE ADAIR ADAMS APPANOOSE BENTON CEDAR CLARKE CLINTON DALLAS DAVIS DECATUR DES MOINES HENRY IOWA JACKSON JASPER JEFFERSON JOHNSON JONES KEOKUK LEE LINN LOUISA LUCAS MADISON Read more